webgl.d.ts

// @generated by scripts/webgl-types.js from TypeScript 6.0.3's lib.dom.d.ts. Run the script again instead of editing this file.
// index.d.ts re-exports these declarations.
import type { TexImageSource } from './index';

export interface WebGLContextAttributes {
  alpha?: boolean;
  antialias?: boolean;
  depth?: boolean;
  desynchronized?: boolean;
  failIfMajorPerformanceCaveat?: boolean;
  powerPreference?: WebGLPowerPreference;
  premultipliedAlpha?: boolean;
  preserveDrawingBuffer?: boolean;
  stencil?: boolean;
  xrCompatible?: boolean;
}

/**
* The **`ANGLE_instanced_arrays`** extension is part of the WebGL API and allows to draw the same object, or groups of similar objects multiple times, if they share the same vertex data, primitive count and type.
*
* [MDN Reference](https://developer.mozilla.org/docs/Web/API/ANGLE_instanced_arrays)
*/
export interface ANGLE_instanced_arrays {
  /**
  * The **`ANGLE_instanced_arrays.drawArraysInstancedANGLE()`** method of the WebGL API renders primitives from array data like the gl.drawArrays() method. In addition, it can execute multiple instances of the range of elements.
  *
  * [MDN Reference](https://developer.mozilla.org/docs/Web/API/ANGLE_instanced_arrays/drawArraysInstancedANGLE)
  */
  drawArraysInstancedANGLE(mode: GLenum, first: GLint, count: GLsizei, primcount: GLsizei): void;
  /**
  * The **`ANGLE_instanced_arrays.drawElementsInstancedANGLE()`** method of the WebGL API renders primitives from array data like the gl.drawElements() method. In addition, it can execute multiple instances of a set of elements.
  *
  * [MDN Reference](https://developer.mozilla.org/docs/Web/API/ANGLE_instanced_arrays/drawElementsInstancedANGLE)
  */
  drawElementsInstancedANGLE(mode: GLenum, count: GLsizei, type: GLenum, offset: GLintptr, primcount: GLsizei): void;
  /**
  * The **`ANGLE_instanced_arrays.vertexAttribDivisorANGLE()`** method of the WebGL API modifies the rate at which generic vertex attributes advance when rendering multiple instances of primitives with ext.drawArraysInstancedANGLE() and ext.drawElementsInstancedANGLE().
  *
  * [MDN Reference](https://developer.mozilla.org/docs/Web/API/ANGLE_instanced_arrays/vertexAttribDivisorANGLE)
  */
  vertexAttribDivisorANGLE(index: GLuint, divisor: GLuint): void;
  readonly VERTEX_ATTRIB_ARRAY_DIVISOR_ANGLE: 0x88FE;
}

/**
* The **`EXT_blend_minmax`** extension is part of the WebGL API and extends blending capabilities by adding two new blend equations: the minimum or maximum color components of the source and destination colors.
*
* [MDN Reference](https://developer.mozilla.org/docs/Web/API/EXT_blend_minmax)
*/
export interface EXT_blend_minmax {
  readonly MIN_EXT: 0x8007;
  readonly MAX_EXT: 0x8008;
}

/**
* The **`EXT_color_buffer_float`** extension is part of WebGL and adds the ability to render a variety of floating point formats.
*
* [MDN Reference](https://developer.mozilla.org/docs/Web/API/EXT_color_buffer_float)
*/
export interface EXT_color_buffer_float {
}

/**
* The **`EXT_color_buffer_half_float`** extension is part of the WebGL API and adds the ability to render to 16-bit floating-point color buffers.
*
* [MDN Reference](https://developer.mozilla.org/docs/Web/API/EXT_color_buffer_half_float)
*/
export interface EXT_color_buffer_half_float {
  readonly RGBA16F_EXT: 0x881A;
  readonly RGB16F_EXT: 0x881B;
  readonly FRAMEBUFFER_ATTACHMENT_COMPONENT_TYPE_EXT: 0x8211;
  readonly UNSIGNED_NORMALIZED_EXT: 0x8C17;
}

/**
* The WebGL API's **`EXT_float_blend`** extension allows blending and draw buffers with 32-bit floating-point components.
*
* [MDN Reference](https://developer.mozilla.org/docs/Web/API/EXT_float_blend)
*/
export interface EXT_float_blend {
}

/**
* The **`EXT_frag_depth`** extension is part of the WebGL API and enables to set a depth value of a fragment from within the fragment shader.
*
* [MDN Reference](https://developer.mozilla.org/docs/Web/API/EXT_frag_depth)
*/
export interface EXT_frag_depth {
}

/**
* The **`EXT_sRGB`** extension is part of the WebGL API and adds sRGB support to textures and framebuffer objects.
*
* [MDN Reference](https://developer.mozilla.org/docs/Web/API/EXT_sRGB)
*/
export interface EXT_sRGB {
  readonly SRGB_EXT: 0x8C40;
  readonly SRGB_ALPHA_EXT: 0x8C42;
  readonly SRGB8_ALPHA8_EXT: 0x8C43;
  readonly FRAMEBUFFER_ATTACHMENT_COLOR_ENCODING_EXT: 0x8210;
}

/**
* The **`EXT_shader_texture_lod`** extension is part of the WebGL API and adds additional texture functions to the OpenGL ES Shading Language which provide the shader writer with explicit control of LOD (Level of detail).
*
* [MDN Reference](https://developer.mozilla.org/docs/Web/API/EXT_shader_texture_lod)
*/
export interface EXT_shader_texture_lod {
}

/**
* The **`EXT_texture_compression_bptc`** extension is part of the WebGL API and exposes 4 BPTC compressed texture formats. These compression formats are called BC7 and BC6H in Microsoft's DirectX API.
*
* [MDN Reference](https://developer.mozilla.org/docs/Web/API/EXT_texture_compression_bptc)
*/
export interface EXT_texture_compression_bptc {
  readonly COMPRESSED_RGBA_BPTC_UNORM_EXT: 0x8E8C;
  readonly COMPRESSED_SRGB_ALPHA_BPTC_UNORM_EXT: 0x8E8D;
  readonly COMPRESSED_RGB_BPTC_SIGNED_FLOAT_EXT: 0x8E8E;
  readonly COMPRESSED_RGB_BPTC_UNSIGNED_FLOAT_EXT: 0x8E8F;
}

/**
* The **`EXT_texture_compression_rgtc`** extension is part of the WebGL API and exposes 4 RGTC compressed texture formats. RGTC is a block-based texture compression format suited for unsigned and signed red and red-green textures (Red-Green Texture Compression).
*
* [MDN Reference](https://developer.mozilla.org/docs/Web/API/EXT_texture_compression_rgtc)
*/
export interface EXT_texture_compression_rgtc {
  readonly COMPRESSED_RED_RGTC1_EXT: 0x8DBB;
  readonly COMPRESSED_SIGNED_RED_RGTC1_EXT: 0x8DBC;
  readonly COMPRESSED_RED_GREEN_RGTC2_EXT: 0x8DBD;
  readonly COMPRESSED_SIGNED_RED_GREEN_RGTC2_EXT: 0x8DBE;
}

/**
* The **`EXT_texture_filter_anisotropic`** extension is part of the WebGL API and exposes two constants for anisotropic filtering (AF).
*
* [MDN Reference](https://developer.mozilla.org/docs/Web/API/EXT_texture_filter_anisotropic)
*/
export interface EXT_texture_filter_anisotropic {
  readonly TEXTURE_MAX_ANISOTROPY_EXT: 0x84FE;
  readonly MAX_TEXTURE_MAX_ANISOTROPY_EXT: 0x84FF;
}

/**
* The **`KHR_parallel_shader_compile`** extension is part of the WebGL API and enables a non-blocking poll operation, so that compile/link status availability (COMPLETION_STATUS_KHR) can be queried without potentially incurring stalls. In other words you can check the status of your shaders compiling without blocking the runtime.
*
* [MDN Reference](https://developer.mozilla.org/docs/Web/API/KHR_parallel_shader_compile)
*/
export interface KHR_parallel_shader_compile {
  readonly COMPLETION_STATUS_KHR: 0x91B1;
}

/**
* The **`OES_element_index_uint`** extension is part of the WebGL API and adds support for gl.UNSIGNED_INT types to WebGLRenderingContext.drawElements().
*
* [MDN Reference](https://developer.mozilla.org/docs/Web/API/OES_element_index_uint)
*/
export interface OES_element_index_uint {
}

/**
* The **`OES_fbo_render_mipmap`** extension is part of the WebGL API and makes it possible to attach any level of a texture to a framebuffer object.
*
* [MDN Reference](https://developer.mozilla.org/docs/Web/API/OES_fbo_render_mipmap)
*/
export interface OES_fbo_render_mipmap {
}

/**
* The **`OES_standard_derivatives`** extension is part of the WebGL API and adds the GLSL derivative functions dFdx, dFdy, and fwidth.
*
* [MDN Reference](https://developer.mozilla.org/docs/Web/API/OES_standard_derivatives)
*/
export interface OES_standard_derivatives {
  readonly FRAGMENT_SHADER_DERIVATIVE_HINT_OES: 0x8B8B;
}

/**
* The **`OES_texture_float`** extension is part of the WebGL API and exposes floating-point pixel types for textures.
*
* [MDN Reference](https://developer.mozilla.org/docs/Web/API/OES_texture_float)
*/
export interface OES_texture_float {
}

/**
* The **`OES_texture_float_linear`** extension is part of the WebGL API and allows linear filtering with floating-point pixel types for textures.
*
* [MDN Reference](https://developer.mozilla.org/docs/Web/API/OES_texture_float_linear)
*/
export interface OES_texture_float_linear {
}

/**
* The **`OES_texture_half_float`** extension is part of the WebGL API and adds texture formats with 16- (aka half float) and 32-bit floating-point components.
*
* [MDN Reference](https://developer.mozilla.org/docs/Web/API/OES_texture_half_float)
*/
export interface OES_texture_half_float {
  readonly HALF_FLOAT_OES: 0x8D61;
}

/**
* The **`OES_texture_half_float_linear`** extension is part of the WebGL API and allows linear filtering with half floating-point pixel types for textures.
*
* [MDN Reference](https://developer.mozilla.org/docs/Web/API/OES_texture_half_float_linear)
*/
export interface OES_texture_half_float_linear {
}

/**
* The **`OES_vertex_array_object`** extension is part of the WebGL API and provides vertex array objects (VAOs) which encapsulate vertex array states. These objects keep pointers to vertex data and provide names for different sets of vertex data.
*
* [MDN Reference](https://developer.mozilla.org/docs/Web/API/OES_vertex_array_object)
*/
export interface OES_vertex_array_object {
  /**
  * The **`OES_vertex_array_object.bindVertexArrayOES()`** method of the WebGL API binds a passed WebGLVertexArrayObject object to the buffer.
  *
  * [MDN Reference](https://developer.mozilla.org/docs/Web/API/OES_vertex_array_object/bindVertexArrayOES)
  */
  bindVertexArrayOES(arrayObject: WebGLVertexArrayObjectOES | null): void;
  /**
  * The **`OES_vertex_array_object.createVertexArrayOES()`** method of the WebGL API creates and initializes a WebGLVertexArrayObject object that represents a vertex array object (VAO) pointing to vertex array data and which provides names for different sets of vertex data.
  *
  * [MDN Reference](https://developer.mozilla.org/docs/Web/API/OES_vertex_array_object/createVertexArrayOES)
  */
  createVertexArrayOES(): WebGLVertexArrayObjectOES;
  /**
  * The **`OES_vertex_array_object.deleteVertexArrayOES()`** method of the WebGL API deletes a given WebGLVertexArrayObject object.
  *
  * [MDN Reference](https://developer.mozilla.org/docs/Web/API/OES_vertex_array_object/deleteVertexArrayOES)
  */
  deleteVertexArrayOES(arrayObject: WebGLVertexArrayObjectOES | null): void;
  /**
  * The **`OES_vertex_array_object.isVertexArrayOES()`** method of the WebGL API returns true if the passed object is a WebGLVertexArrayObject object.
  *
  * [MDN Reference](https://developer.mozilla.org/docs/Web/API/OES_vertex_array_object/isVertexArrayOES)
  */
  isVertexArrayOES(arrayObject: WebGLVertexArrayObjectOES | null): GLboolean;
  readonly VERTEX_ARRAY_BINDING_OES: 0x85B5;
}

/**
* The **`OVR_multiview2`** extension is part of the WebGL API and adds support for rendering into multiple views simultaneously. This especially useful for virtual reality (VR) and WebXR.
*
* [MDN Reference](https://developer.mozilla.org/docs/Web/API/OVR_multiview2)
*/
export interface OVR_multiview2 {
  /**
  * The **`OVR_multiview2.framebufferTextureMultiviewOVR()`** method of the WebGL API attaches a multiview texture to a WebGLFramebuffer.
  *
  * [MDN Reference](https://developer.mozilla.org/docs/Web/API/OVR_multiview2/framebufferTextureMultiviewOVR)
  */
  framebufferTextureMultiviewOVR(target: GLenum, attachment: GLenum, texture: WebGLTexture | null, level: GLint, baseViewIndex: GLint, numViews: GLsizei): void;
  readonly FRAMEBUFFER_ATTACHMENT_TEXTURE_NUM_VIEWS_OVR: 0x9630;
  readonly FRAMEBUFFER_ATTACHMENT_TEXTURE_BASE_VIEW_INDEX_OVR: 0x9632;
  readonly MAX_VIEWS_OVR: 0x9631;
  readonly FRAMEBUFFER_INCOMPLETE_VIEW_TARGETS_OVR: 0x9633;
}

/**
* The **`WEBGL_color_buffer_float`** extension is part of the WebGL API and adds the ability to render to 32-bit floating-point color buffers.
*
* [MDN Reference](https://developer.mozilla.org/docs/Web/API/WEBGL_color_buffer_float)
*/
export interface WEBGL_color_buffer_float {
  readonly RGBA32F_EXT: 0x8814;
  readonly FRAMEBUFFER_ATTACHMENT_COMPONENT_TYPE_EXT: 0x8211;
  readonly UNSIGNED_NORMALIZED_EXT: 0x8C17;
}

/**
* The **`WEBGL_compressed_texture_astc`** extension is part of the WebGL API and exposes Adaptive Scalable Texture Compression (ASTC) compressed texture formats to WebGL.
*
* [MDN Reference](https://developer.mozilla.org/docs/Web/API/WEBGL_compressed_texture_astc)
*/
export interface WEBGL_compressed_texture_astc {
  /**
  * The **`WEBGL_compressed_texture_astc.getSupportedProfiles()`** method returns an array of strings containing the names of the ASTC profiles supported by the implementation.
  *
  * [MDN Reference](https://developer.mozilla.org/docs/Web/API/WEBGL_compressed_texture_astc/getSupportedProfiles)
  */
  getSupportedProfiles(): string[];
  readonly COMPRESSED_RGBA_ASTC_4x4_KHR: 0x93B0;
  readonly COMPRESSED_RGBA_ASTC_5x4_KHR: 0x93B1;
  readonly COMPRESSED_RGBA_ASTC_5x5_KHR: 0x93B2;
  readonly COMPRESSED_RGBA_ASTC_6x5_KHR: 0x93B3;
  readonly COMPRESSED_RGBA_ASTC_6x6_KHR: 0x93B4;
  readonly COMPRESSED_RGBA_ASTC_8x5_KHR: 0x93B5;
  readonly COMPRESSED_RGBA_ASTC_8x6_KHR: 0x93B6;
  readonly COMPRESSED_RGBA_ASTC_8x8_KHR: 0x93B7;
  readonly COMPRESSED_RGBA_ASTC_10x5_KHR: 0x93B8;
  readonly COMPRESSED_RGBA_ASTC_10x6_KHR: 0x93B9;
  readonly COMPRESSED_RGBA_ASTC_10x8_KHR: 0x93BA;
  readonly COMPRESSED_RGBA_ASTC_10x10_KHR: 0x93BB;
  readonly COMPRESSED_RGBA_ASTC_12x10_KHR: 0x93BC;
  readonly COMPRESSED_RGBA_ASTC_12x12_KHR: 0x93BD;
  readonly COMPRESSED_SRGB8_ALPHA8_ASTC_4x4_KHR: 0x93D0;
  readonly COMPRESSED_SRGB8_ALPHA8_ASTC_5x4_KHR: 0x93D1;
  readonly COMPRESSED_SRGB8_ALPHA8_ASTC_5x5_KHR: 0x93D2;
  readonly COMPRESSED_SRGB8_ALPHA8_ASTC_6x5_KHR: 0x93D3;
  readonly COMPRESSED_SRGB8_ALPHA8_ASTC_6x6_KHR: 0x93D4;
  readonly COMPRESSED_SRGB8_ALPHA8_ASTC_8x5_KHR: 0x93D5;
  readonly COMPRESSED_SRGB8_ALPHA8_ASTC_8x6_KHR: 0x93D6;
  readonly COMPRESSED_SRGB8_ALPHA8_ASTC_8x8_KHR: 0x93D7;
  readonly COMPRESSED_SRGB8_ALPHA8_ASTC_10x5_KHR: 0x93D8;
  readonly COMPRESSED_SRGB8_ALPHA8_ASTC_10x6_KHR: 0x93D9;
  readonly COMPRESSED_SRGB8_ALPHA8_ASTC_10x8_KHR: 0x93DA;
  readonly COMPRESSED_SRGB8_ALPHA8_ASTC_10x10_KHR: 0x93DB;
  readonly COMPRESSED_SRGB8_ALPHA8_ASTC_12x10_KHR: 0x93DC;
  readonly COMPRESSED_SRGB8_ALPHA8_ASTC_12x12_KHR: 0x93DD;
}

/**
* The **`WEBGL_compressed_texture_etc`** extension is part of the WebGL API and exposes 10 ETC/EAC compressed texture formats.
*
* [MDN Reference](https://developer.mozilla.org/docs/Web/API/WEBGL_compressed_texture_etc)
*/
export interface WEBGL_compressed_texture_etc {
  readonly COMPRESSED_R11_EAC: 0x9270;
  readonly COMPRESSED_SIGNED_R11_EAC: 0x9271;
  readonly COMPRESSED_RG11_EAC: 0x9272;
  readonly COMPRESSED_SIGNED_RG11_EAC: 0x9273;
  readonly COMPRESSED_RGB8_ETC2: 0x9274;
  readonly COMPRESSED_SRGB8_ETC2: 0x9275;
  readonly COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2: 0x9276;
  readonly COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2: 0x9277;
  readonly COMPRESSED_RGBA8_ETC2_EAC: 0x9278;
  readonly COMPRESSED_SRGB8_ALPHA8_ETC2_EAC: 0x9279;
}

/**
* The **`WEBGL_compressed_texture_etc1`** extension is part of the WebGL API and exposes the ETC1 compressed texture format.
*
* [MDN Reference](https://developer.mozilla.org/docs/Web/API/WEBGL_compressed_texture_etc1)
*/
export interface WEBGL_compressed_texture_etc1 {
  readonly COMPRESSED_RGB_ETC1_WEBGL: 0x8D64;
}

/**
* The **`WEBGL_compressed_texture_pvrtc`** extension is part of the WebGL API and exposes four PVRTC compressed texture formats.
*
* [MDN Reference](https://developer.mozilla.org/docs/Web/API/WEBGL_compressed_texture_pvrtc)
*/
export interface WEBGL_compressed_texture_pvrtc {
  readonly COMPRESSED_RGB_PVRTC_4BPPV1_IMG: 0x8C00;
  readonly COMPRESSED_RGB_PVRTC_2BPPV1_IMG: 0x8C01;
  readonly COMPRESSED_RGBA_PVRTC_4BPPV1_IMG: 0x8C02;
  readonly COMPRESSED_RGBA_PVRTC_2BPPV1_IMG: 0x8C03;
}

/**
* The **`WEBGL_compressed_texture_s3tc`** extension is part of the WebGL API and exposes four S3TC compressed texture formats.
*
* [MDN Reference](https://developer.mozilla.org/docs/Web/API/WEBGL_compressed_texture_s3tc)
*/
export interface WEBGL_compressed_texture_s3tc {
  readonly COMPRESSED_RGB_S3TC_DXT1_EXT: 0x83F0;
  readonly COMPRESSED_RGBA_S3TC_DXT1_EXT: 0x83F1;
  readonly COMPRESSED_RGBA_S3TC_DXT3_EXT: 0x83F2;
  readonly COMPRESSED_RGBA_S3TC_DXT5_EXT: 0x83F3;
}

/**
* The **`WEBGL_compressed_texture_s3tc_srgb`** extension is part of the WebGL API and exposes four S3TC compressed texture formats for the sRGB colorspace.
*
* [MDN Reference](https://developer.mozilla.org/docs/Web/API/WEBGL_compressed_texture_s3tc_srgb)
*/
export interface WEBGL_compressed_texture_s3tc_srgb {
  readonly COMPRESSED_SRGB_S3TC_DXT1_EXT: 0x8C4C;
  readonly COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT: 0x8C4D;
  readonly COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT: 0x8C4E;
  readonly COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT: 0x8C4F;
}

/**
* The **`WEBGL_debug_renderer_info`** extension is part of the WebGL API and exposes two constants with information about the graphics driver for debugging purposes.
*
* [MDN Reference](https://developer.mozilla.org/docs/Web/API/WEBGL_debug_renderer_info)
*/
export interface WEBGL_debug_renderer_info {
  readonly UNMASKED_VENDOR_WEBGL: 0x9245;
  readonly UNMASKED_RENDERER_WEBGL: 0x9246;
}

/**
* The **`WEBGL_debug_shaders`** extension is part of the WebGL API and exposes a method to debug shaders from privileged contexts.
*
* [MDN Reference](https://developer.mozilla.org/docs/Web/API/WEBGL_debug_shaders)
*/
export interface WEBGL_debug_shaders {
  /**
  * The **`WEBGL_debug_shaders.getTranslatedShaderSource()`** method is part of the WebGL API and allows you to debug a translated shader.
  *
  * [MDN Reference](https://developer.mozilla.org/docs/Web/API/WEBGL_debug_shaders/getTranslatedShaderSource)
  */
  getTranslatedShaderSource(shader: WebGLShader): string;
}

/**
* The **`WEBGL_depth_texture`** extension is part of the WebGL API and defines 2D depth and depth-stencil textures.
*
* [MDN Reference](https://developer.mozilla.org/docs/Web/API/WEBGL_depth_texture)
*/
export interface WEBGL_depth_texture {
  readonly UNSIGNED_INT_24_8_WEBGL: 0x84FA;
}

/**
* The **`WEBGL_draw_buffers`** extension is part of the WebGL API and enables a fragment shader to write to several textures, which is useful for deferred shading, for example.
*
* [MDN Reference](https://developer.mozilla.org/docs/Web/API/WEBGL_draw_buffers)
*/
export interface WEBGL_draw_buffers {
  /**
  * The **`WEBGL_draw_buffers.drawBuffersWEBGL()`** method is part of the WebGL API and allows you to define the draw buffers to which all fragment colors are written.
  *
  * [MDN Reference](https://developer.mozilla.org/docs/Web/API/WEBGL_draw_buffers/drawBuffersWEBGL)
  */
  drawBuffersWEBGL(buffers: GLenum[]): void;
  readonly COLOR_ATTACHMENT0_WEBGL: 0x8CE0;
  readonly COLOR_ATTACHMENT1_WEBGL: 0x8CE1;
  readonly COLOR_ATTACHMENT2_WEBGL: 0x8CE2;
  readonly COLOR_ATTACHMENT3_WEBGL: 0x8CE3;
  readonly COLOR_ATTACHMENT4_WEBGL: 0x8CE4;
  readonly COLOR_ATTACHMENT5_WEBGL: 0x8CE5;
  readonly COLOR_ATTACHMENT6_WEBGL: 0x8CE6;
  readonly COLOR_ATTACHMENT7_WEBGL: 0x8CE7;
  readonly COLOR_ATTACHMENT8_WEBGL: 0x8CE8;
  readonly COLOR_ATTACHMENT9_WEBGL: 0x8CE9;
  readonly COLOR_ATTACHMENT10_WEBGL: 0x8CEA;
  readonly COLOR_ATTACHMENT11_WEBGL: 0x8CEB;
  readonly COLOR_ATTACHMENT12_WEBGL: 0x8CEC;
  readonly COLOR_ATTACHMENT13_WEBGL: 0x8CED;
  readonly COLOR_ATTACHMENT14_WEBGL: 0x8CEE;
  readonly COLOR_ATTACHMENT15_WEBGL: 0x8CEF;
  readonly DRAW_BUFFER0_WEBGL: 0x8825;
  readonly DRAW_BUFFER1_WEBGL: 0x8826;
  readonly DRAW_BUFFER2_WEBGL: 0x8827;
  readonly DRAW_BUFFER3_WEBGL: 0x8828;
  readonly DRAW_BUFFER4_WEBGL: 0x8829;
  readonly DRAW_BUFFER5_WEBGL: 0x882A;
  readonly DRAW_BUFFER6_WEBGL: 0x882B;
  readonly DRAW_BUFFER7_WEBGL: 0x882C;
  readonly DRAW_BUFFER8_WEBGL: 0x882D;
  readonly DRAW_BUFFER9_WEBGL: 0x882E;
  readonly DRAW_BUFFER10_WEBGL: 0x882F;
  readonly DRAW_BUFFER11_WEBGL: 0x8830;
  readonly DRAW_BUFFER12_WEBGL: 0x8831;
  readonly DRAW_BUFFER13_WEBGL: 0x8832;
  readonly DRAW_BUFFER14_WEBGL: 0x8833;
  readonly DRAW_BUFFER15_WEBGL: 0x8834;
  readonly MAX_COLOR_ATTACHMENTS_WEBGL: 0x8CDF;
  readonly MAX_DRAW_BUFFERS_WEBGL: 0x8824;
}

/**
* The **`WEBGL_lose_context`** extension is part of the WebGL API and exposes functions to simulate losing and restoring a WebGLRenderingContext.
*
* [MDN Reference](https://developer.mozilla.org/docs/Web/API/WEBGL_lose_context)
*/
export interface WEBGL_lose_context {
  /**
  * The **`WEBGL_lose_context.loseContext()`** method is part of the WebGL API and allows you to simulate losing the context of a WebGLRenderingContext context.
  *
  * [MDN Reference](https://developer.mozilla.org/docs/Web/API/WEBGL_lose_context/loseContext)
  */
  loseContext(): void;
  /**
  * The **`WEBGL_lose_context.restoreContext()`** method is part of the WebGL API and allows you to simulate restoring the context of a WebGLRenderingContext object.
  *
  * [MDN Reference](https://developer.mozilla.org/docs/Web/API/WEBGL_lose_context/restoreContext)
  */
  restoreContext(): void;
}

/**
* The **`WEBGL_multi_draw`** extension is part of the WebGL API and allows to render more than one primitive with a single function call. This can improve a WebGL application's performance as it reduces binding costs in the renderer and speeds up GPU thread time with uniform data.
*
* [MDN Reference](https://developer.mozilla.org/docs/Web/API/WEBGL_multi_draw)
*/
export interface WEBGL_multi_draw {
  /**
  * The **`WEBGL_multi_draw.multiDrawArraysInstancedWEBGL()`** method of the WebGL API renders multiple primitives from array data. It is identical to multiple calls to the gl.drawArraysInstanced() method.
  *
  * [MDN Reference](https://developer.mozilla.org/docs/Web/API/WEBGL_multi_draw/multiDrawArraysInstancedWEBGL)
  */
  multiDrawArraysInstancedWEBGL(mode: GLenum, firstsList: Int32Array | GLint[], firstsOffset: number, countsList: Int32Array | GLsizei[], countsOffset: number, instanceCountsList: Int32Array | GLsizei[], instanceCountsOffset: number, drawcount: GLsizei): void;
  /**
  * The **`WEBGL_multi_draw.multiDrawArraysWEBGL()`** method of the WebGL API renders multiple primitives from array data. It is identical to multiple calls to the gl.drawArrays() method.
  *
  * [MDN Reference](https://developer.mozilla.org/docs/Web/API/WEBGL_multi_draw/multiDrawArraysWEBGL)
  */
  multiDrawArraysWEBGL(mode: GLenum, firstsList: Int32Array | GLint[], firstsOffset: number, countsList: Int32Array | GLsizei[], countsOffset: number, drawcount: GLsizei): void;
  /**
  * The **`WEBGL_multi_draw.multiDrawElementsInstancedWEBGL()`** method of the WebGL API renders multiple primitives from array data. It is identical to multiple calls to the gl.drawElementsInstanced() method.
  *
  * [MDN Reference](https://developer.mozilla.org/docs/Web/API/WEBGL_multi_draw/multiDrawElementsInstancedWEBGL)
  */
  multiDrawElementsInstancedWEBGL(mode: GLenum, countsList: Int32Array | GLsizei[], countsOffset: number, type: GLenum, offsetsList: Int32Array | GLsizei[], offsetsOffset: number, instanceCountsList: Int32Array | GLsizei[], instanceCountsOffset: number, drawcount: GLsizei): void;
  /**
  * The **`WEBGL_multi_draw.multiDrawElementsWEBGL()`** method of the WebGL API renders multiple primitives from array data. It is identical to multiple calls to the gl.drawElements() method.
  *
  * [MDN Reference](https://developer.mozilla.org/docs/Web/API/WEBGL_multi_draw/multiDrawElementsWEBGL)
  */
  multiDrawElementsWEBGL(mode: GLenum, countsList: Int32Array | GLsizei[], countsOffset: number, type: GLenum, offsetsList: Int32Array | GLsizei[], offsetsOffset: number, drawcount: GLsizei): void;
}

/**
* The **`WebGL2RenderingContext`** interface provides the OpenGL ES 3.0 rendering context for the drawing surface of an HTML <canvas> element.
*
* [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext)
*/
export interface HeadlessWebGL2RenderingContext extends WebGL2RenderingContextBase, WebGL2RenderingContextOverloads, WebGLRenderingContextBase {
}

export interface WebGL2RenderingContextBase {
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/beginQuery) */
  beginQuery(target: GLenum, query: WebGLQuery): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/beginTransformFeedback) */
  beginTransformFeedback(primitiveMode: GLenum): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/bindBufferBase) */
  bindBufferBase(target: GLenum, index: GLuint, buffer: WebGLBuffer | null): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/bindBufferRange) */
  bindBufferRange(target: GLenum, index: GLuint, buffer: WebGLBuffer | null, offset: GLintptr, size: GLsizeiptr): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/bindSampler) */
  bindSampler(unit: GLuint, sampler: WebGLSampler | null): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/bindTransformFeedback) */
  bindTransformFeedback(target: GLenum, tf: WebGLTransformFeedback | null): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/bindVertexArray) */
  bindVertexArray(array: WebGLVertexArrayObject | null): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/blitFramebuffer) */
  blitFramebuffer(srcX0: GLint, srcY0: GLint, srcX1: GLint, srcY1: GLint, dstX0: GLint, dstY0: GLint, dstX1: GLint, dstY1: GLint, mask: GLbitfield, filter: GLenum): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/clearBuffer) */
  clearBufferfi(buffer: GLenum, drawbuffer: GLint, depth: GLfloat, stencil: GLint): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/clearBuffer) */
  clearBufferfv(buffer: GLenum, drawbuffer: GLint, values: Float32List, srcOffset?: number): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/clearBuffer) */
  clearBufferiv(buffer: GLenum, drawbuffer: GLint, values: Int32List, srcOffset?: number): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/clearBuffer) */
  clearBufferuiv(buffer: GLenum, drawbuffer: GLint, values: Uint32List, srcOffset?: number): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/clientWaitSync) */
  clientWaitSync(sync: WebGLSync, flags: GLbitfield, timeout: GLuint64): GLenum;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/compressedTexImage3D) */
  compressedTexImage3D(target: GLenum, level: GLint, internalformat: GLenum, width: GLsizei, height: GLsizei, depth: GLsizei, border: GLint, imageSize: GLsizei, offset: GLintptr): void;
  compressedTexImage3D(target: GLenum, level: GLint, internalformat: GLenum, width: GLsizei, height: GLsizei, depth: GLsizei, border: GLint, srcData: ArrayBufferView, srcOffset?: number, srcLengthOverride?: GLuint): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/compressedTexSubImage3D) */
  compressedTexSubImage3D(target: GLenum, level: GLint, xoffset: GLint, yoffset: GLint, zoffset: GLint, width: GLsizei, height: GLsizei, depth: GLsizei, format: GLenum, imageSize: GLsizei, offset: GLintptr): void;
  compressedTexSubImage3D(target: GLenum, level: GLint, xoffset: GLint, yoffset: GLint, zoffset: GLint, width: GLsizei, height: GLsizei, depth: GLsizei, format: GLenum, srcData: ArrayBufferView, srcOffset?: number, srcLengthOverride?: GLuint): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/copyBufferSubData) */
  copyBufferSubData(readTarget: GLenum, writeTarget: GLenum, readOffset: GLintptr, writeOffset: GLintptr, size: GLsizeiptr): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/copyTexSubImage3D) */
  copyTexSubImage3D(target: GLenum, level: GLint, xoffset: GLint, yoffset: GLint, zoffset: GLint, x: GLint, y: GLint, width: GLsizei, height: GLsizei): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/createQuery) */
  createQuery(): WebGLQuery;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/createSampler) */
  createSampler(): WebGLSampler;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/createTransformFeedback) */
  createTransformFeedback(): WebGLTransformFeedback;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/createVertexArray) */
  createVertexArray(): WebGLVertexArrayObject;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/deleteQuery) */
  deleteQuery(query: WebGLQuery | null): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/deleteSampler) */
  deleteSampler(sampler: WebGLSampler | null): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/deleteSync) */
  deleteSync(sync: WebGLSync | null): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/deleteTransformFeedback) */
  deleteTransformFeedback(tf: WebGLTransformFeedback | null): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/deleteVertexArray) */
  deleteVertexArray(vertexArray: WebGLVertexArrayObject | null): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/drawArraysInstanced) */
  drawArraysInstanced(mode: GLenum, first: GLint, count: GLsizei, instanceCount: GLsizei): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/drawBuffers) */
  drawBuffers(buffers: GLenum[]): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/drawElementsInstanced) */
  drawElementsInstanced(mode: GLenum, count: GLsizei, type: GLenum, offset: GLintptr, instanceCount: GLsizei): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/drawRangeElements) */
  drawRangeElements(mode: GLenum, start: GLuint, end: GLuint, count: GLsizei, type: GLenum, offset: GLintptr): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/endQuery) */
  endQuery(target: GLenum): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/endTransformFeedback) */
  endTransformFeedback(): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/fenceSync) */
  fenceSync(condition: GLenum, flags: GLbitfield): WebGLSync | null;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/framebufferTextureLayer) */
  framebufferTextureLayer(target: GLenum, attachment: GLenum, texture: WebGLTexture | null, level: GLint, layer: GLint): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/getActiveUniformBlockName) */
  getActiveUniformBlockName(program: WebGLProgram, uniformBlockIndex: GLuint): string | null;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/getActiveUniformBlockParameter) */
  getActiveUniformBlockParameter(program: WebGLProgram, uniformBlockIndex: GLuint, pname: GLenum): any;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/getActiveUniforms) */
  getActiveUniforms(program: WebGLProgram, uniformIndices: GLuint[], pname: GLenum): any;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/getBufferSubData) */
  getBufferSubData(target: GLenum, srcByteOffset: GLintptr, dstBuffer: ArrayBufferView, dstOffset?: number, length?: GLuint): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/getFragDataLocation) */
  getFragDataLocation(program: WebGLProgram, name: string): GLint;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/getIndexedParameter) */
  getIndexedParameter(target: GLenum, index: GLuint): any;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/getInternalformatParameter) */
  getInternalformatParameter(target: GLenum, internalformat: GLenum, pname: GLenum): any;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/getQuery) */
  getQuery(target: GLenum, pname: GLenum): WebGLQuery | null;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/getQueryParameter) */
  getQueryParameter(query: WebGLQuery, pname: GLenum): any;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/getSamplerParameter) */
  getSamplerParameter(sampler: WebGLSampler, pname: GLenum): any;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/getSyncParameter) */
  getSyncParameter(sync: WebGLSync, pname: GLenum): any;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/getTransformFeedbackVarying) */
  getTransformFeedbackVarying(program: WebGLProgram, index: GLuint): WebGLActiveInfo | null;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/getUniformBlockIndex) */
  getUniformBlockIndex(program: WebGLProgram, uniformBlockName: string): GLuint;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/getUniformIndices) */
  getUniformIndices(program: WebGLProgram, uniformNames: string[]): GLuint[] | null;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/invalidateFramebuffer) */
  invalidateFramebuffer(target: GLenum, attachments: GLenum[]): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/invalidateSubFramebuffer) */
  invalidateSubFramebuffer(target: GLenum, attachments: GLenum[], x: GLint, y: GLint, width: GLsizei, height: GLsizei): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/isQuery) */
  isQuery(query: WebGLQuery | null): GLboolean;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/isSampler) */
  isSampler(sampler: WebGLSampler | null): GLboolean;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/isSync) */
  isSync(sync: WebGLSync | null): GLboolean;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/isTransformFeedback) */
  isTransformFeedback(tf: WebGLTransformFeedback | null): GLboolean;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/isVertexArray) */
  isVertexArray(vertexArray: WebGLVertexArrayObject | null): GLboolean;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/pauseTransformFeedback) */
  pauseTransformFeedback(): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/readBuffer) */
  readBuffer(src: GLenum): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/renderbufferStorageMultisample) */
  renderbufferStorageMultisample(target: GLenum, samples: GLsizei, internalformat: GLenum, width: GLsizei, height: GLsizei): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/resumeTransformFeedback) */
  resumeTransformFeedback(): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/samplerParameter) */
  samplerParameterf(sampler: WebGLSampler, pname: GLenum, param: GLfloat): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/samplerParameter) */
  samplerParameteri(sampler: WebGLSampler, pname: GLenum, param: GLint): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/texImage3D) */
  texImage3D(target: GLenum, level: GLint, internalformat: GLint, width: GLsizei, height: GLsizei, depth: GLsizei, border: GLint, format: GLenum, type: GLenum, pboOffset: GLintptr): void;
  texImage3D(target: GLenum, level: GLint, internalformat: GLint, width: GLsizei, height: GLsizei, depth: GLsizei, border: GLint, format: GLenum, type: GLenum, source: TexImageSource): void;
  texImage3D(target: GLenum, level: GLint, internalformat: GLint, width: GLsizei, height: GLsizei, depth: GLsizei, border: GLint, format: GLenum, type: GLenum, srcData: ArrayBufferView | null): void;
  texImage3D(target: GLenum, level: GLint, internalformat: GLint, width: GLsizei, height: GLsizei, depth: GLsizei, border: GLint, format: GLenum, type: GLenum, srcData: ArrayBufferView, srcOffset: number): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/texStorage2D) */
  texStorage2D(target: GLenum, levels: GLsizei, internalformat: GLenum, width: GLsizei, height: GLsizei): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/texStorage3D) */
  texStorage3D(target: GLenum, levels: GLsizei, internalformat: GLenum, width: GLsizei, height: GLsizei, depth: GLsizei): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/texSubImage3D) */
  texSubImage3D(target: GLenum, level: GLint, xoffset: GLint, yoffset: GLint, zoffset: GLint, width: GLsizei, height: GLsizei, depth: GLsizei, format: GLenum, type: GLenum, pboOffset: GLintptr): void;
  texSubImage3D(target: GLenum, level: GLint, xoffset: GLint, yoffset: GLint, zoffset: GLint, width: GLsizei, height: GLsizei, depth: GLsizei, format: GLenum, type: GLenum, source: TexImageSource): void;
  texSubImage3D(target: GLenum, level: GLint, xoffset: GLint, yoffset: GLint, zoffset: GLint, width: GLsizei, height: GLsizei, depth: GLsizei, format: GLenum, type: GLenum, srcData: ArrayBufferView | null, srcOffset?: number): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/transformFeedbackVaryings) */
  transformFeedbackVaryings(program: WebGLProgram, varyings: string[], bufferMode: GLenum): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/uniform) */
  uniform1ui(location: WebGLUniformLocation | null, v0: GLuint): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/uniform) */
  uniform1uiv(location: WebGLUniformLocation | null, data: Uint32List, srcOffset?: number, srcLength?: GLuint): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/uniform) */
  uniform2ui(location: WebGLUniformLocation | null, v0: GLuint, v1: GLuint): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/uniform) */
  uniform2uiv(location: WebGLUniformLocation | null, data: Uint32List, srcOffset?: number, srcLength?: GLuint): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/uniform) */
  uniform3ui(location: WebGLUniformLocation | null, v0: GLuint, v1: GLuint, v2: GLuint): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/uniform) */
  uniform3uiv(location: WebGLUniformLocation | null, data: Uint32List, srcOffset?: number, srcLength?: GLuint): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/uniform) */
  uniform4ui(location: WebGLUniformLocation | null, v0: GLuint, v1: GLuint, v2: GLuint, v3: GLuint): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/uniform) */
  uniform4uiv(location: WebGLUniformLocation | null, data: Uint32List, srcOffset?: number, srcLength?: GLuint): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/uniformBlockBinding) */
  uniformBlockBinding(program: WebGLProgram, uniformBlockIndex: GLuint, uniformBlockBinding: GLuint): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/uniformMatrix) */
  uniformMatrix2x3fv(location: WebGLUniformLocation | null, transpose: GLboolean, data: Float32List, srcOffset?: number, srcLength?: GLuint): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/uniformMatrix) */
  uniformMatrix2x4fv(location: WebGLUniformLocation | null, transpose: GLboolean, data: Float32List, srcOffset?: number, srcLength?: GLuint): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/uniformMatrix) */
  uniformMatrix3x2fv(location: WebGLUniformLocation | null, transpose: GLboolean, data: Float32List, srcOffset?: number, srcLength?: GLuint): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/uniformMatrix) */
  uniformMatrix3x4fv(location: WebGLUniformLocation | null, transpose: GLboolean, data: Float32List, srcOffset?: number, srcLength?: GLuint): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/uniformMatrix) */
  uniformMatrix4x2fv(location: WebGLUniformLocation | null, transpose: GLboolean, data: Float32List, srcOffset?: number, srcLength?: GLuint): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/uniformMatrix) */
  uniformMatrix4x3fv(location: WebGLUniformLocation | null, transpose: GLboolean, data: Float32List, srcOffset?: number, srcLength?: GLuint): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/vertexAttribDivisor) */
  vertexAttribDivisor(index: GLuint, divisor: GLuint): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/vertexAttribI) */
  vertexAttribI4i(index: GLuint, x: GLint, y: GLint, z: GLint, w: GLint): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/vertexAttribI) */
  vertexAttribI4iv(index: GLuint, values: Int32List): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/vertexAttribI) */
  vertexAttribI4ui(index: GLuint, x: GLuint, y: GLuint, z: GLuint, w: GLuint): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/vertexAttribI) */
  vertexAttribI4uiv(index: GLuint, values: Uint32List): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/vertexAttribIPointer) */
  vertexAttribIPointer(index: GLuint, size: GLint, type: GLenum, stride: GLsizei, offset: GLintptr): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/waitSync) */
  waitSync(sync: WebGLSync, flags: GLbitfield, timeout: GLint64): void;
  readonly READ_BUFFER: 0x0C02;
  readonly UNPACK_ROW_LENGTH: 0x0CF2;
  readonly UNPACK_SKIP_ROWS: 0x0CF3;
  readonly UNPACK_SKIP_PIXELS: 0x0CF4;
  readonly PACK_ROW_LENGTH: 0x0D02;
  readonly PACK_SKIP_ROWS: 0x0D03;
  readonly PACK_SKIP_PIXELS: 0x0D04;
  readonly COLOR: 0x1800;
  readonly DEPTH: 0x1801;
  readonly STENCIL: 0x1802;
  readonly RED: 0x1903;
  readonly RGB8: 0x8051;
  readonly RGB10_A2: 0x8059;
  readonly TEXTURE_BINDING_3D: 0x806A;
  readonly UNPACK_SKIP_IMAGES: 0x806D;
  readonly UNPACK_IMAGE_HEIGHT: 0x806E;
  readonly TEXTURE_3D: 0x806F;
  readonly TEXTURE_WRAP_R: 0x8072;
  readonly MAX_3D_TEXTURE_SIZE: 0x8073;
  readonly UNSIGNED_INT_2_10_10_10_REV: 0x8368;
  readonly MAX_ELEMENTS_VERTICES: 0x80E8;
  readonly MAX_ELEMENTS_INDICES: 0x80E9;
  readonly TEXTURE_MIN_LOD: 0x813A;
  readonly TEXTURE_MAX_LOD: 0x813B;
  readonly TEXTURE_BASE_LEVEL: 0x813C;
  readonly TEXTURE_MAX_LEVEL: 0x813D;
  readonly MIN: 0x8007;
  readonly MAX: 0x8008;
  readonly DEPTH_COMPONENT24: 0x81A6;
  readonly MAX_TEXTURE_LOD_BIAS: 0x84FD;
  readonly TEXTURE_COMPARE_MODE: 0x884C;
  readonly TEXTURE_COMPARE_FUNC: 0x884D;
  readonly CURRENT_QUERY: 0x8865;
  readonly QUERY_RESULT: 0x8866;
  readonly QUERY_RESULT_AVAILABLE: 0x8867;
  readonly STREAM_READ: 0x88E1;
  readonly STREAM_COPY: 0x88E2;
  readonly STATIC_READ: 0x88E5;
  readonly STATIC_COPY: 0x88E6;
  readonly DYNAMIC_READ: 0x88E9;
  readonly DYNAMIC_COPY: 0x88EA;
  readonly MAX_DRAW_BUFFERS: 0x8824;
  readonly DRAW_BUFFER0: 0x8825;
  readonly DRAW_BUFFER1: 0x8826;
  readonly DRAW_BUFFER2: 0x8827;
  readonly DRAW_BUFFER3: 0x8828;
  readonly DRAW_BUFFER4: 0x8829;
  readonly DRAW_BUFFER5: 0x882A;
  readonly DRAW_BUFFER6: 0x882B;
  readonly DRAW_BUFFER7: 0x882C;
  readonly DRAW_BUFFER8: 0x882D;
  readonly DRAW_BUFFER9: 0x882E;
  readonly DRAW_BUFFER10: 0x882F;
  readonly DRAW_BUFFER11: 0x8830;
  readonly DRAW_BUFFER12: 0x8831;
  readonly DRAW_BUFFER13: 0x8832;
  readonly DRAW_BUFFER14: 0x8833;
  readonly DRAW_BUFFER15: 0x8834;
  readonly MAX_FRAGMENT_UNIFORM_COMPONENTS: 0x8B49;
  readonly MAX_VERTEX_UNIFORM_COMPONENTS: 0x8B4A;
  readonly SAMPLER_3D: 0x8B5F;
  readonly SAMPLER_2D_SHADOW: 0x8B62;
  readonly FRAGMENT_SHADER_DERIVATIVE_HINT: 0x8B8B;
  readonly PIXEL_PACK_BUFFER: 0x88EB;
  readonly PIXEL_UNPACK_BUFFER: 0x88EC;
  readonly PIXEL_PACK_BUFFER_BINDING: 0x88ED;
  readonly PIXEL_UNPACK_BUFFER_BINDING: 0x88EF;
  readonly FLOAT_MAT2x3: 0x8B65;
  readonly FLOAT_MAT2x4: 0x8B66;
  readonly FLOAT_MAT3x2: 0x8B67;
  readonly FLOAT_MAT3x4: 0x8B68;
  readonly FLOAT_MAT4x2: 0x8B69;
  readonly FLOAT_MAT4x3: 0x8B6A;
  readonly SRGB: 0x8C40;
  readonly SRGB8: 0x8C41;
  readonly SRGB8_ALPHA8: 0x8C43;
  readonly COMPARE_REF_TO_TEXTURE: 0x884E;
  readonly RGBA32F: 0x8814;
  readonly RGB32F: 0x8815;
  readonly RGBA16F: 0x881A;
  readonly RGB16F: 0x881B;
  readonly VERTEX_ATTRIB_ARRAY_INTEGER: 0x88FD;
  readonly MAX_ARRAY_TEXTURE_LAYERS: 0x88FF;
  readonly MIN_PROGRAM_TEXEL_OFFSET: 0x8904;
  readonly MAX_PROGRAM_TEXEL_OFFSET: 0x8905;
  readonly MAX_VARYING_COMPONENTS: 0x8B4B;
  readonly TEXTURE_2D_ARRAY: 0x8C1A;
  readonly TEXTURE_BINDING_2D_ARRAY: 0x8C1D;
  readonly R11F_G11F_B10F: 0x8C3A;
  readonly UNSIGNED_INT_10F_11F_11F_REV: 0x8C3B;
  readonly RGB9_E5: 0x8C3D;
  readonly UNSIGNED_INT_5_9_9_9_REV: 0x8C3E;
  readonly TRANSFORM_FEEDBACK_BUFFER_MODE: 0x8C7F;
  readonly MAX_TRANSFORM_FEEDBACK_SEPARATE_COMPONENTS: 0x8C80;
  readonly TRANSFORM_FEEDBACK_VARYINGS: 0x8C83;
  readonly TRANSFORM_FEEDBACK_BUFFER_START: 0x8C84;
  readonly TRANSFORM_FEEDBACK_BUFFER_SIZE: 0x8C85;
  readonly TRANSFORM_FEEDBACK_PRIMITIVES_WRITTEN: 0x8C88;
  readonly RASTERIZER_DISCARD: 0x8C89;
  readonly MAX_TRANSFORM_FEEDBACK_INTERLEAVED_COMPONENTS: 0x8C8A;
  readonly MAX_TRANSFORM_FEEDBACK_SEPARATE_ATTRIBS: 0x8C8B;
  readonly INTERLEAVED_ATTRIBS: 0x8C8C;
  readonly SEPARATE_ATTRIBS: 0x8C8D;
  readonly TRANSFORM_FEEDBACK_BUFFER: 0x8C8E;
  readonly TRANSFORM_FEEDBACK_BUFFER_BINDING: 0x8C8F;
  readonly RGBA32UI: 0x8D70;
  readonly RGB32UI: 0x8D71;
  readonly RGBA16UI: 0x8D76;
  readonly RGB16UI: 0x8D77;
  readonly RGBA8UI: 0x8D7C;
  readonly RGB8UI: 0x8D7D;
  readonly RGBA32I: 0x8D82;
  readonly RGB32I: 0x8D83;
  readonly RGBA16I: 0x8D88;
  readonly RGB16I: 0x8D89;
  readonly RGBA8I: 0x8D8E;
  readonly RGB8I: 0x8D8F;
  readonly RED_INTEGER: 0x8D94;
  readonly RGB_INTEGER: 0x8D98;
  readonly RGBA_INTEGER: 0x8D99;
  readonly SAMPLER_2D_ARRAY: 0x8DC1;
  readonly SAMPLER_2D_ARRAY_SHADOW: 0x8DC4;
  readonly SAMPLER_CUBE_SHADOW: 0x8DC5;
  readonly UNSIGNED_INT_VEC2: 0x8DC6;
  readonly UNSIGNED_INT_VEC3: 0x8DC7;
  readonly UNSIGNED_INT_VEC4: 0x8DC8;
  readonly INT_SAMPLER_2D: 0x8DCA;
  readonly INT_SAMPLER_3D: 0x8DCB;
  readonly INT_SAMPLER_CUBE: 0x8DCC;
  readonly INT_SAMPLER_2D_ARRAY: 0x8DCF;
  readonly UNSIGNED_INT_SAMPLER_2D: 0x8DD2;
  readonly UNSIGNED_INT_SAMPLER_3D: 0x8DD3;
  readonly UNSIGNED_INT_SAMPLER_CUBE: 0x8DD4;
  readonly UNSIGNED_INT_SAMPLER_2D_ARRAY: 0x8DD7;
  readonly DEPTH_COMPONENT32F: 0x8CAC;
  readonly DEPTH32F_STENCIL8: 0x8CAD;
  readonly FLOAT_32_UNSIGNED_INT_24_8_REV: 0x8DAD;
  readonly FRAMEBUFFER_ATTACHMENT_COLOR_ENCODING: 0x8210;
  readonly FRAMEBUFFER_ATTACHMENT_COMPONENT_TYPE: 0x8211;
  readonly FRAMEBUFFER_ATTACHMENT_RED_SIZE: 0x8212;
  readonly FRAMEBUFFER_ATTACHMENT_GREEN_SIZE: 0x8213;
  readonly FRAMEBUFFER_ATTACHMENT_BLUE_SIZE: 0x8214;
  readonly FRAMEBUFFER_ATTACHMENT_ALPHA_SIZE: 0x8215;
  readonly FRAMEBUFFER_ATTACHMENT_DEPTH_SIZE: 0x8216;
  readonly FRAMEBUFFER_ATTACHMENT_STENCIL_SIZE: 0x8217;
  readonly FRAMEBUFFER_DEFAULT: 0x8218;
  readonly UNSIGNED_INT_24_8: 0x84FA;
  readonly DEPTH24_STENCIL8: 0x88F0;
  readonly UNSIGNED_NORMALIZED: 0x8C17;
  readonly DRAW_FRAMEBUFFER_BINDING: 0x8CA6;
  readonly READ_FRAMEBUFFER: 0x8CA8;
  readonly DRAW_FRAMEBUFFER: 0x8CA9;
  readonly READ_FRAMEBUFFER_BINDING: 0x8CAA;
  readonly RENDERBUFFER_SAMPLES: 0x8CAB;
  readonly FRAMEBUFFER_ATTACHMENT_TEXTURE_LAYER: 0x8CD4;
  readonly MAX_COLOR_ATTACHMENTS: 0x8CDF;
  readonly COLOR_ATTACHMENT1: 0x8CE1;
  readonly COLOR_ATTACHMENT2: 0x8CE2;
  readonly COLOR_ATTACHMENT3: 0x8CE3;
  readonly COLOR_ATTACHMENT4: 0x8CE4;
  readonly COLOR_ATTACHMENT5: 0x8CE5;
  readonly COLOR_ATTACHMENT6: 0x8CE6;
  readonly COLOR_ATTACHMENT7: 0x8CE7;
  readonly COLOR_ATTACHMENT8: 0x8CE8;
  readonly COLOR_ATTACHMENT9: 0x8CE9;
  readonly COLOR_ATTACHMENT10: 0x8CEA;
  readonly COLOR_ATTACHMENT11: 0x8CEB;
  readonly COLOR_ATTACHMENT12: 0x8CEC;
  readonly COLOR_ATTACHMENT13: 0x8CED;
  readonly COLOR_ATTACHMENT14: 0x8CEE;
  readonly COLOR_ATTACHMENT15: 0x8CEF;
  readonly FRAMEBUFFER_INCOMPLETE_MULTISAMPLE: 0x8D56;
  readonly MAX_SAMPLES: 0x8D57;
  readonly HALF_FLOAT: 0x140B;
  readonly RG: 0x8227;
  readonly RG_INTEGER: 0x8228;
  readonly R8: 0x8229;
  readonly RG8: 0x822B;
  readonly R16F: 0x822D;
  readonly R32F: 0x822E;
  readonly RG16F: 0x822F;
  readonly RG32F: 0x8230;
  readonly R8I: 0x8231;
  readonly R8UI: 0x8232;
  readonly R16I: 0x8233;
  readonly R16UI: 0x8234;
  readonly R32I: 0x8235;
  readonly R32UI: 0x8236;
  readonly RG8I: 0x8237;
  readonly RG8UI: 0x8238;
  readonly RG16I: 0x8239;
  readonly RG16UI: 0x823A;
  readonly RG32I: 0x823B;
  readonly RG32UI: 0x823C;
  readonly VERTEX_ARRAY_BINDING: 0x85B5;
  readonly R8_SNORM: 0x8F94;
  readonly RG8_SNORM: 0x8F95;
  readonly RGB8_SNORM: 0x8F96;
  readonly RGBA8_SNORM: 0x8F97;
  readonly SIGNED_NORMALIZED: 0x8F9C;
  readonly COPY_READ_BUFFER: 0x8F36;
  readonly COPY_WRITE_BUFFER: 0x8F37;
  readonly COPY_READ_BUFFER_BINDING: 0x8F36;
  readonly COPY_WRITE_BUFFER_BINDING: 0x8F37;
  readonly UNIFORM_BUFFER: 0x8A11;
  readonly UNIFORM_BUFFER_BINDING: 0x8A28;
  readonly UNIFORM_BUFFER_START: 0x8A29;
  readonly UNIFORM_BUFFER_SIZE: 0x8A2A;
  readonly MAX_VERTEX_UNIFORM_BLOCKS: 0x8A2B;
  readonly MAX_FRAGMENT_UNIFORM_BLOCKS: 0x8A2D;
  readonly MAX_COMBINED_UNIFORM_BLOCKS: 0x8A2E;
  readonly MAX_UNIFORM_BUFFER_BINDINGS: 0x8A2F;
  readonly MAX_UNIFORM_BLOCK_SIZE: 0x8A30;
  readonly MAX_COMBINED_VERTEX_UNIFORM_COMPONENTS: 0x8A31;
  readonly MAX_COMBINED_FRAGMENT_UNIFORM_COMPONENTS: 0x8A33;
  readonly UNIFORM_BUFFER_OFFSET_ALIGNMENT: 0x8A34;
  readonly ACTIVE_UNIFORM_BLOCKS: 0x8A36;
  readonly UNIFORM_TYPE: 0x8A37;
  readonly UNIFORM_SIZE: 0x8A38;
  readonly UNIFORM_BLOCK_INDEX: 0x8A3A;
  readonly UNIFORM_OFFSET: 0x8A3B;
  readonly UNIFORM_ARRAY_STRIDE: 0x8A3C;
  readonly UNIFORM_MATRIX_STRIDE: 0x8A3D;
  readonly UNIFORM_IS_ROW_MAJOR: 0x8A3E;
  readonly UNIFORM_BLOCK_BINDING: 0x8A3F;
  readonly UNIFORM_BLOCK_DATA_SIZE: 0x8A40;
  readonly UNIFORM_BLOCK_ACTIVE_UNIFORMS: 0x8A42;
  readonly UNIFORM_BLOCK_ACTIVE_UNIFORM_INDICES: 0x8A43;
  readonly UNIFORM_BLOCK_REFERENCED_BY_VERTEX_SHADER: 0x8A44;
  readonly UNIFORM_BLOCK_REFERENCED_BY_FRAGMENT_SHADER: 0x8A46;
  readonly INVALID_INDEX: 0xFFFFFFFF;
  readonly MAX_VERTEX_OUTPUT_COMPONENTS: 0x9122;
  readonly MAX_FRAGMENT_INPUT_COMPONENTS: 0x9125;
  readonly MAX_SERVER_WAIT_TIMEOUT: 0x9111;
  readonly OBJECT_TYPE: 0x9112;
  readonly SYNC_CONDITION: 0x9113;
  readonly SYNC_STATUS: 0x9114;
  readonly SYNC_FLAGS: 0x9115;
  readonly SYNC_FENCE: 0x9116;
  readonly SYNC_GPU_COMMANDS_COMPLETE: 0x9117;
  readonly UNSIGNALED: 0x9118;
  readonly SIGNALED: 0x9119;
  readonly ALREADY_SIGNALED: 0x911A;
  readonly TIMEOUT_EXPIRED: 0x911B;
  readonly CONDITION_SATISFIED: 0x911C;
  readonly WAIT_FAILED: 0x911D;
  readonly SYNC_FLUSH_COMMANDS_BIT: 0x00000001;
  readonly VERTEX_ATTRIB_ARRAY_DIVISOR: 0x88FE;
  readonly ANY_SAMPLES_PASSED: 0x8C2F;
  readonly ANY_SAMPLES_PASSED_CONSERVATIVE: 0x8D6A;
  readonly SAMPLER_BINDING: 0x8919;
  readonly RGB10_A2UI: 0x906F;
  readonly INT_2_10_10_10_REV: 0x8D9F;
  readonly TRANSFORM_FEEDBACK: 0x8E22;
  readonly TRANSFORM_FEEDBACK_PAUSED: 0x8E23;
  readonly TRANSFORM_FEEDBACK_ACTIVE: 0x8E24;
  readonly TRANSFORM_FEEDBACK_BINDING: 0x8E25;
  readonly TEXTURE_IMMUTABLE_FORMAT: 0x912F;
  readonly MAX_ELEMENT_INDEX: 0x8D6B;
  readonly TEXTURE_IMMUTABLE_LEVELS: 0x82DF;
  readonly TIMEOUT_IGNORED: -1;
  readonly MAX_CLIENT_WAIT_TIMEOUT_WEBGL: 0x9247;
}

export interface WebGL2RenderingContextOverloads {
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/bufferData) */
  bufferData(target: GLenum, size: GLsizeiptr, usage: GLenum): void;
  bufferData(target: GLenum, srcData: AllowSharedBufferSource | null, usage: GLenum): void;
  bufferData(target: GLenum, srcData: ArrayBufferView, usage: GLenum, srcOffset: number, length?: GLuint): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/bufferSubData) */
  bufferSubData(target: GLenum, dstByteOffset: GLintptr, srcData: AllowSharedBufferSource): void;
  bufferSubData(target: GLenum, dstByteOffset: GLintptr, srcData: ArrayBufferView, srcOffset: number, length?: GLuint): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/compressedTexImage2D) */
  compressedTexImage2D(target: GLenum, level: GLint, internalformat: GLenum, width: GLsizei, height: GLsizei, border: GLint, imageSize: GLsizei, offset: GLintptr): void;
  compressedTexImage2D(target: GLenum, level: GLint, internalformat: GLenum, width: GLsizei, height: GLsizei, border: GLint, srcData: ArrayBufferView, srcOffset?: number, srcLengthOverride?: GLuint): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/compressedTexSubImage2D) */
  compressedTexSubImage2D(target: GLenum, level: GLint, xoffset: GLint, yoffset: GLint, width: GLsizei, height: GLsizei, format: GLenum, imageSize: GLsizei, offset: GLintptr): void;
  compressedTexSubImage2D(target: GLenum, level: GLint, xoffset: GLint, yoffset: GLint, width: GLsizei, height: GLsizei, format: GLenum, srcData: ArrayBufferView, srcOffset?: number, srcLengthOverride?: GLuint): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/readPixels) */
  readPixels(x: GLint, y: GLint, width: GLsizei, height: GLsizei, format: GLenum, type: GLenum, dstData: ArrayBufferView | null): void;
  readPixels(x: GLint, y: GLint, width: GLsizei, height: GLsizei, format: GLenum, type: GLenum, offset: GLintptr): void;
  readPixels(x: GLint, y: GLint, width: GLsizei, height: GLsizei, format: GLenum, type: GLenum, dstData: ArrayBufferView, dstOffset: number): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/texImage2D) */
  texImage2D(target: GLenum, level: GLint, internalformat: GLint, width: GLsizei, height: GLsizei, border: GLint, format: GLenum, type: GLenum, pixels: ArrayBufferView | null): void;
  texImage2D(target: GLenum, level: GLint, internalformat: GLint, format: GLenum, type: GLenum, source: TexImageSource): void;
  texImage2D(target: GLenum, level: GLint, internalformat: GLint, width: GLsizei, height: GLsizei, border: GLint, format: GLenum, type: GLenum, pboOffset: GLintptr): void;
  texImage2D(target: GLenum, level: GLint, internalformat: GLint, width: GLsizei, height: GLsizei, border: GLint, format: GLenum, type: GLenum, source: TexImageSource): void;
  texImage2D(target: GLenum, level: GLint, internalformat: GLint, width: GLsizei, height: GLsizei, border: GLint, format: GLenum, type: GLenum, srcData: ArrayBufferView, srcOffset: number): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/texSubImage2D) */
  texSubImage2D(target: GLenum, level: GLint, xoffset: GLint, yoffset: GLint, width: GLsizei, height: GLsizei, format: GLenum, type: GLenum, pixels: ArrayBufferView | null): void;
  texSubImage2D(target: GLenum, level: GLint, xoffset: GLint, yoffset: GLint, format: GLenum, type: GLenum, source: TexImageSource): void;
  texSubImage2D(target: GLenum, level: GLint, xoffset: GLint, yoffset: GLint, width: GLsizei, height: GLsizei, format: GLenum, type: GLenum, pboOffset: GLintptr): void;
  texSubImage2D(target: GLenum, level: GLint, xoffset: GLint, yoffset: GLint, width: GLsizei, height: GLsizei, format: GLenum, type: GLenum, source: TexImageSource): void;
  texSubImage2D(target: GLenum, level: GLint, xoffset: GLint, yoffset: GLint, width: GLsizei, height: GLsizei, format: GLenum, type: GLenum, srcData: ArrayBufferView, srcOffset: number): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/uniform) */
  uniform1fv(location: WebGLUniformLocation | null, data: Float32List, srcOffset?: number, srcLength?: GLuint): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/uniform) */
  uniform1iv(location: WebGLUniformLocation | null, data: Int32List, srcOffset?: number, srcLength?: GLuint): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/uniform) */
  uniform2fv(location: WebGLUniformLocation | null, data: Float32List, srcOffset?: number, srcLength?: GLuint): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/uniform) */
  uniform2iv(location: WebGLUniformLocation | null, data: Int32List, srcOffset?: number, srcLength?: GLuint): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/uniform) */
  uniform3fv(location: WebGLUniformLocation | null, data: Float32List, srcOffset?: number, srcLength?: GLuint): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/uniform) */
  uniform3iv(location: WebGLUniformLocation | null, data: Int32List, srcOffset?: number, srcLength?: GLuint): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/uniform) */
  uniform4fv(location: WebGLUniformLocation | null, data: Float32List, srcOffset?: number, srcLength?: GLuint): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/uniform) */
  uniform4iv(location: WebGLUniformLocation | null, data: Int32List, srcOffset?: number, srcLength?: GLuint): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/uniformMatrix) */
  uniformMatrix2fv(location: WebGLUniformLocation | null, transpose: GLboolean, data: Float32List, srcOffset?: number, srcLength?: GLuint): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/uniformMatrix) */
  uniformMatrix3fv(location: WebGLUniformLocation | null, transpose: GLboolean, data: Float32List, srcOffset?: number, srcLength?: GLuint): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/uniformMatrix) */
  uniformMatrix4fv(location: WebGLUniformLocation | null, transpose: GLboolean, data: Float32List, srcOffset?: number, srcLength?: GLuint): void;
}

/**
* The **`WebGLActiveInfo`** interface is part of the WebGL API and represents the information returned by calling the WebGLRenderingContext.getActiveAttrib() and WebGLRenderingContext.getActiveUniform() methods.
*
* [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLActiveInfo)
*/
export interface WebGLActiveInfo {
  /**
  * The read-only **`WebGLActiveInfo.name`** property represents the name of the requested data returned by calling the getActiveAttrib() or getActiveUniform() methods.
  *
  * [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLActiveInfo/name)
  */
  readonly name: string;
  /**
  * The read-only **`WebGLActiveInfo.size`** property is a Number representing the size of the requested data returned by calling the getActiveAttrib() or getActiveUniform() methods.
  *
  * [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLActiveInfo/size)
  */
  readonly size: GLint;
  /**
  * The read-only **`WebGLActiveInfo.type`** property represents the type of the requested data returned by calling the getActiveAttrib() or getActiveUniform() methods.
  *
  * [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLActiveInfo/type)
  */
  readonly type: GLenum;
}

/**
* The **`WebGLBuffer`** interface is part of the WebGL API and represents an opaque buffer object storing data such as vertices or colors.
*
* [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLBuffer)
*/
export interface WebGLBuffer {
}

/**
* The **`WebGLFramebuffer`** interface is part of the WebGL API and represents a collection of buffers that serve as a rendering destination.
*
* [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLFramebuffer)
*/
export interface WebGLFramebuffer {
}

/**
* The **`WebGLProgram`** is part of the WebGL API and is a combination of two compiled WebGLShaders consisting of a vertex shader and a fragment shader (both written in GLSL).
*
* [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLProgram)
*/
export interface WebGLProgram {
}

/**
* The **`WebGLQuery`** interface is part of the WebGL 2 API and provides ways to asynchronously query for information. By default, occlusion queries and primitive queries are available.
*
* [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLQuery)
*/
export interface WebGLQuery {
}

/**
* The **`WebGLRenderbuffer`** interface is part of the WebGL API and represents a buffer that can contain an image, or that can be a source or target of a rendering operation.
*
* [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderbuffer)
*/
export interface WebGLRenderbuffer {
}

/**
* The **`WebGLRenderingContext`** interface provides an interface to the OpenGL ES 2.0 graphics rendering context for the drawing surface of an HTML <canvas> element.
*
* [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext)
*/
export interface HeadlessWebGLRenderingContext extends WebGLRenderingContextBase, WebGLRenderingContextOverloads {
}

export interface WebGLRenderingContextBase {
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/drawingBufferHeight) */
  readonly drawingBufferHeight: GLsizei;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/drawingBufferWidth) */
  readonly drawingBufferWidth: GLsizei;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/activeTexture) */
  activeTexture(texture: GLenum): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/attachShader) */
  attachShader(program: WebGLProgram, shader: WebGLShader): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/bindAttribLocation) */
  bindAttribLocation(program: WebGLProgram, index: GLuint, name: string): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/bindBuffer) */
  bindBuffer(target: GLenum, buffer: WebGLBuffer | null): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/bindFramebuffer) */
  bindFramebuffer(target: GLenum, framebuffer: WebGLFramebuffer | null): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/bindRenderbuffer) */
  bindRenderbuffer(target: GLenum, renderbuffer: WebGLRenderbuffer | null): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/bindTexture) */
  bindTexture(target: GLenum, texture: WebGLTexture | null): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/blendColor) */
  blendColor(red: GLclampf, green: GLclampf, blue: GLclampf, alpha: GLclampf): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/blendEquation) */
  blendEquation(mode: GLenum): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/blendEquationSeparate) */
  blendEquationSeparate(modeRGB: GLenum, modeAlpha: GLenum): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/blendFunc) */
  blendFunc(sfactor: GLenum, dfactor: GLenum): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/blendFuncSeparate) */
  blendFuncSeparate(srcRGB: GLenum, dstRGB: GLenum, srcAlpha: GLenum, dstAlpha: GLenum): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/checkFramebufferStatus) */
  checkFramebufferStatus(target: GLenum): GLenum;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/clear) */
  clear(mask: GLbitfield): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/clearColor) */
  clearColor(red: GLclampf, green: GLclampf, blue: GLclampf, alpha: GLclampf): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/clearDepth) */
  clearDepth(depth: GLclampf): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/clearStencil) */
  clearStencil(s: GLint): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/colorMask) */
  colorMask(red: GLboolean, green: GLboolean, blue: GLboolean, alpha: GLboolean): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/compileShader) */
  compileShader(shader: WebGLShader): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/copyTexImage2D) */
  copyTexImage2D(target: GLenum, level: GLint, internalformat: GLenum, x: GLint, y: GLint, width: GLsizei, height: GLsizei, border: GLint): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/copyTexSubImage2D) */
  copyTexSubImage2D(target: GLenum, level: GLint, xoffset: GLint, yoffset: GLint, x: GLint, y: GLint, width: GLsizei, height: GLsizei): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/createBuffer) */
  createBuffer(): WebGLBuffer;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/createFramebuffer) */
  createFramebuffer(): WebGLFramebuffer;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/createProgram) */
  createProgram(): WebGLProgram;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/createRenderbuffer) */
  createRenderbuffer(): WebGLRenderbuffer;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/createShader) */
  createShader(type: GLenum): WebGLShader | null;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/createTexture) */
  createTexture(): WebGLTexture;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/cullFace) */
  cullFace(mode: GLenum): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/deleteBuffer) */
  deleteBuffer(buffer: WebGLBuffer | null): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/deleteFramebuffer) */
  deleteFramebuffer(framebuffer: WebGLFramebuffer | null): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/deleteProgram) */
  deleteProgram(program: WebGLProgram | null): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/deleteRenderbuffer) */
  deleteRenderbuffer(renderbuffer: WebGLRenderbuffer | null): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/deleteShader) */
  deleteShader(shader: WebGLShader | null): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/deleteTexture) */
  deleteTexture(texture: WebGLTexture | null): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/depthFunc) */
  depthFunc(func: GLenum): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/depthMask) */
  depthMask(flag: GLboolean): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/depthRange) */
  depthRange(zNear: GLclampf, zFar: GLclampf): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/detachShader) */
  detachShader(program: WebGLProgram, shader: WebGLShader): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/disable) */
  disable(cap: GLenum): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/disableVertexAttribArray) */
  disableVertexAttribArray(index: GLuint): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/drawArrays) */
  drawArrays(mode: GLenum, first: GLint, count: GLsizei): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/drawElements) */
  drawElements(mode: GLenum, count: GLsizei, type: GLenum, offset: GLintptr): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/enable) */
  enable(cap: GLenum): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/enableVertexAttribArray) */
  enableVertexAttribArray(index: GLuint): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/finish) */
  finish(): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/flush) */
  flush(): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/framebufferRenderbuffer) */
  framebufferRenderbuffer(target: GLenum, attachment: GLenum, renderbuffertarget: GLenum, renderbuffer: WebGLRenderbuffer | null): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/framebufferTexture2D) */
  framebufferTexture2D(target: GLenum, attachment: GLenum, textarget: GLenum, texture: WebGLTexture | null, level: GLint): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/frontFace) */
  frontFace(mode: GLenum): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/generateMipmap) */
  generateMipmap(target: GLenum): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/getActiveAttrib) */
  getActiveAttrib(program: WebGLProgram, index: GLuint): WebGLActiveInfo | null;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/getActiveUniform) */
  getActiveUniform(program: WebGLProgram, index: GLuint): WebGLActiveInfo | null;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/getAttachedShaders) */
  getAttachedShaders(program: WebGLProgram): WebGLShader[] | null;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/getAttribLocation) */
  getAttribLocation(program: WebGLProgram, name: string): GLint;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/getBufferParameter) */
  getBufferParameter(target: GLenum, pname: GLenum): any;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/getContextAttributes) */
  getContextAttributes(): WebGLContextAttributes | null;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/getError) */
  getError(): GLenum;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/getExtension) */
  getExtension(name: string): any;
  getExtension(extensionName: "ANGLE_instanced_arrays"): ANGLE_instanced_arrays | null;
  getExtension(extensionName: "EXT_blend_minmax"): EXT_blend_minmax | null;
  getExtension(extensionName: "EXT_color_buffer_float"): EXT_color_buffer_float | null;
  getExtension(extensionName: "EXT_color_buffer_half_float"): EXT_color_buffer_half_float | null;
  getExtension(extensionName: "EXT_float_blend"): EXT_float_blend | null;
  getExtension(extensionName: "EXT_frag_depth"): EXT_frag_depth | null;
  getExtension(extensionName: "EXT_sRGB"): EXT_sRGB | null;
  getExtension(extensionName: "EXT_shader_texture_lod"): EXT_shader_texture_lod | null;
  getExtension(extensionName: "EXT_texture_compression_bptc"): EXT_texture_compression_bptc | null;
  getExtension(extensionName: "EXT_texture_compression_rgtc"): EXT_texture_compression_rgtc | null;
  getExtension(extensionName: "EXT_texture_filter_anisotropic"): EXT_texture_filter_anisotropic | null;
  getExtension(extensionName: "KHR_parallel_shader_compile"): KHR_parallel_shader_compile | null;
  getExtension(extensionName: "OES_element_index_uint"): OES_element_index_uint | null;
  getExtension(extensionName: "OES_fbo_render_mipmap"): OES_fbo_render_mipmap | null;
  getExtension(extensionName: "OES_standard_derivatives"): OES_standard_derivatives | null;
  getExtension(extensionName: "OES_texture_float"): OES_texture_float | null;
  getExtension(extensionName: "OES_texture_float_linear"): OES_texture_float_linear | null;
  getExtension(extensionName: "OES_texture_half_float"): OES_texture_half_float | null;
  getExtension(extensionName: "OES_texture_half_float_linear"): OES_texture_half_float_linear | null;
  getExtension(extensionName: "OES_vertex_array_object"): OES_vertex_array_object | null;
  getExtension(extensionName: "OVR_multiview2"): OVR_multiview2 | null;
  getExtension(extensionName: "WEBGL_color_buffer_float"): WEBGL_color_buffer_float | null;
  getExtension(extensionName: "WEBGL_compressed_texture_astc"): WEBGL_compressed_texture_astc | null;
  getExtension(extensionName: "WEBGL_compressed_texture_etc"): WEBGL_compressed_texture_etc | null;
  getExtension(extensionName: "WEBGL_compressed_texture_etc1"): WEBGL_compressed_texture_etc1 | null;
  getExtension(extensionName: "WEBGL_compressed_texture_pvrtc"): WEBGL_compressed_texture_pvrtc | null;
  getExtension(extensionName: "WEBGL_compressed_texture_s3tc"): WEBGL_compressed_texture_s3tc | null;
  getExtension(extensionName: "WEBGL_compressed_texture_s3tc_srgb"): WEBGL_compressed_texture_s3tc_srgb | null;
  getExtension(extensionName: "WEBGL_debug_renderer_info"): WEBGL_debug_renderer_info | null;
  getExtension(extensionName: "WEBGL_debug_shaders"): WEBGL_debug_shaders | null;
  getExtension(extensionName: "WEBGL_depth_texture"): WEBGL_depth_texture | null;
  getExtension(extensionName: "WEBGL_draw_buffers"): WEBGL_draw_buffers | null;
  getExtension(extensionName: "WEBGL_lose_context"): WEBGL_lose_context | null;
  getExtension(extensionName: "WEBGL_multi_draw"): WEBGL_multi_draw | null;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/getFramebufferAttachmentParameter) */
  getFramebufferAttachmentParameter(target: GLenum, attachment: GLenum, pname: GLenum): any;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/getParameter) */
  getParameter(pname: GLenum): any;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/getProgramInfoLog) */
  getProgramInfoLog(program: WebGLProgram): string | null;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/getProgramParameter) */
  getProgramParameter(program: WebGLProgram, pname: GLenum): any;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/getRenderbufferParameter) */
  getRenderbufferParameter(target: GLenum, pname: GLenum): any;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/getShaderInfoLog) */
  getShaderInfoLog(shader: WebGLShader): string | null;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/getShaderParameter) */
  getShaderParameter(shader: WebGLShader, pname: GLenum): any;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/getShaderPrecisionFormat) */
  getShaderPrecisionFormat(shadertype: GLenum, precisiontype: GLenum): WebGLShaderPrecisionFormat | null;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/getShaderSource) */
  getShaderSource(shader: WebGLShader): string | null;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/getSupportedExtensions) */
  getSupportedExtensions(): string[] | null;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/getTexParameter) */
  getTexParameter(target: GLenum, pname: GLenum): any;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/getUniform) */
  getUniform(program: WebGLProgram, location: WebGLUniformLocation): any;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/getUniformLocation) */
  getUniformLocation(program: WebGLProgram, name: string): WebGLUniformLocation | null;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/getVertexAttrib) */
  getVertexAttrib(index: GLuint, pname: GLenum): any;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/getVertexAttribOffset) */
  getVertexAttribOffset(index: GLuint, pname: GLenum): GLintptr;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/hint) */
  hint(target: GLenum, mode: GLenum): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/isBuffer) */
  isBuffer(buffer: WebGLBuffer | null): GLboolean;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/isContextLost) */
  isContextLost(): boolean;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/isEnabled) */
  isEnabled(cap: GLenum): GLboolean;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/isFramebuffer) */
  isFramebuffer(framebuffer: WebGLFramebuffer | null): GLboolean;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/isProgram) */
  isProgram(program: WebGLProgram | null): GLboolean;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/isRenderbuffer) */
  isRenderbuffer(renderbuffer: WebGLRenderbuffer | null): GLboolean;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/isShader) */
  isShader(shader: WebGLShader | null): GLboolean;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/isTexture) */
  isTexture(texture: WebGLTexture | null): GLboolean;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/lineWidth) */
  lineWidth(width: GLfloat): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/linkProgram) */
  linkProgram(program: WebGLProgram): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/pixelStorei) */
  pixelStorei(pname: GLenum, param: GLint | GLboolean): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/polygonOffset) */
  polygonOffset(factor: GLfloat, units: GLfloat): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/renderbufferStorage) */
  renderbufferStorage(target: GLenum, internalformat: GLenum, width: GLsizei, height: GLsizei): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/sampleCoverage) */
  sampleCoverage(value: GLclampf, invert: GLboolean): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/scissor) */
  scissor(x: GLint, y: GLint, width: GLsizei, height: GLsizei): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/shaderSource) */
  shaderSource(shader: WebGLShader, source: string): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/stencilFunc) */
  stencilFunc(func: GLenum, ref: GLint, mask: GLuint): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/stencilFuncSeparate) */
  stencilFuncSeparate(face: GLenum, func: GLenum, ref: GLint, mask: GLuint): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/stencilMask) */
  stencilMask(mask: GLuint): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/stencilMaskSeparate) */
  stencilMaskSeparate(face: GLenum, mask: GLuint): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/stencilOp) */
  stencilOp(fail: GLenum, zfail: GLenum, zpass: GLenum): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/stencilOpSeparate) */
  stencilOpSeparate(face: GLenum, fail: GLenum, zfail: GLenum, zpass: GLenum): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/texParameter) */
  texParameterf(target: GLenum, pname: GLenum, param: GLfloat): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/texParameter) */
  texParameteri(target: GLenum, pname: GLenum, param: GLint): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/uniform) */
  uniform1f(location: WebGLUniformLocation | null, x: GLfloat): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/uniform) */
  uniform1i(location: WebGLUniformLocation | null, x: GLint): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/uniform) */
  uniform2f(location: WebGLUniformLocation | null, x: GLfloat, y: GLfloat): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/uniform) */
  uniform2i(location: WebGLUniformLocation | null, x: GLint, y: GLint): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/uniform) */
  uniform3f(location: WebGLUniformLocation | null, x: GLfloat, y: GLfloat, z: GLfloat): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/uniform) */
  uniform3i(location: WebGLUniformLocation | null, x: GLint, y: GLint, z: GLint): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/uniform) */
  uniform4f(location: WebGLUniformLocation | null, x: GLfloat, y: GLfloat, z: GLfloat, w: GLfloat): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/uniform) */
  uniform4i(location: WebGLUniformLocation | null, x: GLint, y: GLint, z: GLint, w: GLint): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/useProgram) */
  useProgram(program: WebGLProgram | null): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/validateProgram) */
  validateProgram(program: WebGLProgram): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/vertexAttrib) */
  vertexAttrib1f(index: GLuint, x: GLfloat): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/vertexAttrib) */
  vertexAttrib1fv(index: GLuint, values: Float32List): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/vertexAttrib) */
  vertexAttrib2f(index: GLuint, x: GLfloat, y: GLfloat): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/vertexAttrib) */
  vertexAttrib2fv(index: GLuint, values: Float32List): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/vertexAttrib) */
  vertexAttrib3f(index: GLuint, x: GLfloat, y: GLfloat, z: GLfloat): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/vertexAttrib) */
  vertexAttrib3fv(index: GLuint, values: Float32List): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/vertexAttrib) */
  vertexAttrib4f(index: GLuint, x: GLfloat, y: GLfloat, z: GLfloat, w: GLfloat): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/vertexAttrib) */
  vertexAttrib4fv(index: GLuint, values: Float32List): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/vertexAttribPointer) */
  vertexAttribPointer(index: GLuint, size: GLint, type: GLenum, normalized: GLboolean, stride: GLsizei, offset: GLintptr): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/viewport) */
  viewport(x: GLint, y: GLint, width: GLsizei, height: GLsizei): void;
  readonly DEPTH_BUFFER_BIT: 0x00000100;
  readonly STENCIL_BUFFER_BIT: 0x00000400;
  readonly COLOR_BUFFER_BIT: 0x00004000;
  readonly POINTS: 0x0000;
  readonly LINES: 0x0001;
  readonly LINE_LOOP: 0x0002;
  readonly LINE_STRIP: 0x0003;
  readonly TRIANGLES: 0x0004;
  readonly TRIANGLE_STRIP: 0x0005;
  readonly TRIANGLE_FAN: 0x0006;
  readonly ZERO: 0;
  readonly ONE: 1;
  readonly SRC_COLOR: 0x0300;
  readonly ONE_MINUS_SRC_COLOR: 0x0301;
  readonly SRC_ALPHA: 0x0302;
  readonly ONE_MINUS_SRC_ALPHA: 0x0303;
  readonly DST_ALPHA: 0x0304;
  readonly ONE_MINUS_DST_ALPHA: 0x0305;
  readonly DST_COLOR: 0x0306;
  readonly ONE_MINUS_DST_COLOR: 0x0307;
  readonly SRC_ALPHA_SATURATE: 0x0308;
  readonly FUNC_ADD: 0x8006;
  readonly BLEND_EQUATION: 0x8009;
  readonly BLEND_EQUATION_RGB: 0x8009;
  readonly BLEND_EQUATION_ALPHA: 0x883D;
  readonly FUNC_SUBTRACT: 0x800A;
  readonly FUNC_REVERSE_SUBTRACT: 0x800B;
  readonly BLEND_DST_RGB: 0x80C8;
  readonly BLEND_SRC_RGB: 0x80C9;
  readonly BLEND_DST_ALPHA: 0x80CA;
  readonly BLEND_SRC_ALPHA: 0x80CB;
  readonly CONSTANT_COLOR: 0x8001;
  readonly ONE_MINUS_CONSTANT_COLOR: 0x8002;
  readonly CONSTANT_ALPHA: 0x8003;
  readonly ONE_MINUS_CONSTANT_ALPHA: 0x8004;
  readonly BLEND_COLOR: 0x8005;
  readonly ARRAY_BUFFER: 0x8892;
  readonly ELEMENT_ARRAY_BUFFER: 0x8893;
  readonly ARRAY_BUFFER_BINDING: 0x8894;
  readonly ELEMENT_ARRAY_BUFFER_BINDING: 0x8895;
  readonly STREAM_DRAW: 0x88E0;
  readonly STATIC_DRAW: 0x88E4;
  readonly DYNAMIC_DRAW: 0x88E8;
  readonly BUFFER_SIZE: 0x8764;
  readonly BUFFER_USAGE: 0x8765;
  readonly CURRENT_VERTEX_ATTRIB: 0x8626;
  readonly FRONT: 0x0404;
  readonly BACK: 0x0405;
  readonly FRONT_AND_BACK: 0x0408;
  readonly CULL_FACE: 0x0B44;
  readonly BLEND: 0x0BE2;
  readonly DITHER: 0x0BD0;
  readonly STENCIL_TEST: 0x0B90;
  readonly DEPTH_TEST: 0x0B71;
  readonly SCISSOR_TEST: 0x0C11;
  readonly POLYGON_OFFSET_FILL: 0x8037;
  readonly SAMPLE_ALPHA_TO_COVERAGE: 0x809E;
  readonly SAMPLE_COVERAGE: 0x80A0;
  readonly NO_ERROR: 0;
  readonly INVALID_ENUM: 0x0500;
  readonly INVALID_VALUE: 0x0501;
  readonly INVALID_OPERATION: 0x0502;
  readonly OUT_OF_MEMORY: 0x0505;
  readonly CW: 0x0900;
  readonly CCW: 0x0901;
  readonly LINE_WIDTH: 0x0B21;
  readonly ALIASED_POINT_SIZE_RANGE: 0x846D;
  readonly ALIASED_LINE_WIDTH_RANGE: 0x846E;
  readonly CULL_FACE_MODE: 0x0B45;
  readonly FRONT_FACE: 0x0B46;
  readonly DEPTH_RANGE: 0x0B70;
  readonly DEPTH_WRITEMASK: 0x0B72;
  readonly DEPTH_CLEAR_VALUE: 0x0B73;
  readonly DEPTH_FUNC: 0x0B74;
  readonly STENCIL_CLEAR_VALUE: 0x0B91;
  readonly STENCIL_FUNC: 0x0B92;
  readonly STENCIL_FAIL: 0x0B94;
  readonly STENCIL_PASS_DEPTH_FAIL: 0x0B95;
  readonly STENCIL_PASS_DEPTH_PASS: 0x0B96;
  readonly STENCIL_REF: 0x0B97;
  readonly STENCIL_VALUE_MASK: 0x0B93;
  readonly STENCIL_WRITEMASK: 0x0B98;
  readonly STENCIL_BACK_FUNC: 0x8800;
  readonly STENCIL_BACK_FAIL: 0x8801;
  readonly STENCIL_BACK_PASS_DEPTH_FAIL: 0x8802;
  readonly STENCIL_BACK_PASS_DEPTH_PASS: 0x8803;
  readonly STENCIL_BACK_REF: 0x8CA3;
  readonly STENCIL_BACK_VALUE_MASK: 0x8CA4;
  readonly STENCIL_BACK_WRITEMASK: 0x8CA5;
  readonly VIEWPORT: 0x0BA2;
  readonly SCISSOR_BOX: 0x0C10;
  readonly COLOR_CLEAR_VALUE: 0x0C22;
  readonly COLOR_WRITEMASK: 0x0C23;
  readonly UNPACK_ALIGNMENT: 0x0CF5;
  readonly PACK_ALIGNMENT: 0x0D05;
  readonly MAX_TEXTURE_SIZE: 0x0D33;
  readonly MAX_VIEWPORT_DIMS: 0x0D3A;
  readonly SUBPIXEL_BITS: 0x0D50;
  readonly RED_BITS: 0x0D52;
  readonly GREEN_BITS: 0x0D53;
  readonly BLUE_BITS: 0x0D54;
  readonly ALPHA_BITS: 0x0D55;
  readonly DEPTH_BITS: 0x0D56;
  readonly STENCIL_BITS: 0x0D57;
  readonly POLYGON_OFFSET_UNITS: 0x2A00;
  readonly POLYGON_OFFSET_FACTOR: 0x8038;
  readonly TEXTURE_BINDING_2D: 0x8069;
  readonly SAMPLE_BUFFERS: 0x80A8;
  readonly SAMPLES: 0x80A9;
  readonly SAMPLE_COVERAGE_VALUE: 0x80AA;
  readonly SAMPLE_COVERAGE_INVERT: 0x80AB;
  readonly COMPRESSED_TEXTURE_FORMATS: 0x86A3;
  readonly DONT_CARE: 0x1100;
  readonly FASTEST: 0x1101;
  readonly NICEST: 0x1102;
  readonly GENERATE_MIPMAP_HINT: 0x8192;
  readonly BYTE: 0x1400;
  readonly UNSIGNED_BYTE: 0x1401;
  readonly SHORT: 0x1402;
  readonly UNSIGNED_SHORT: 0x1403;
  readonly INT: 0x1404;
  readonly UNSIGNED_INT: 0x1405;
  readonly FLOAT: 0x1406;
  readonly DEPTH_COMPONENT: 0x1902;
  readonly ALPHA: 0x1906;
  readonly RGB: 0x1907;
  readonly RGBA: 0x1908;
  readonly LUMINANCE: 0x1909;
  readonly LUMINANCE_ALPHA: 0x190A;
  readonly UNSIGNED_SHORT_4_4_4_4: 0x8033;
  readonly UNSIGNED_SHORT_5_5_5_1: 0x8034;
  readonly UNSIGNED_SHORT_5_6_5: 0x8363;
  readonly FRAGMENT_SHADER: 0x8B30;
  readonly VERTEX_SHADER: 0x8B31;
  readonly MAX_VERTEX_ATTRIBS: 0x8869;
  readonly MAX_VERTEX_UNIFORM_VECTORS: 0x8DFB;
  readonly MAX_VARYING_VECTORS: 0x8DFC;
  readonly MAX_COMBINED_TEXTURE_IMAGE_UNITS: 0x8B4D;
  readonly MAX_VERTEX_TEXTURE_IMAGE_UNITS: 0x8B4C;
  readonly MAX_TEXTURE_IMAGE_UNITS: 0x8872;
  readonly MAX_FRAGMENT_UNIFORM_VECTORS: 0x8DFD;
  readonly SHADER_TYPE: 0x8B4F;
  readonly DELETE_STATUS: 0x8B80;
  readonly LINK_STATUS: 0x8B82;
  readonly VALIDATE_STATUS: 0x8B83;
  readonly ATTACHED_SHADERS: 0x8B85;
  readonly ACTIVE_UNIFORMS: 0x8B86;
  readonly ACTIVE_ATTRIBUTES: 0x8B89;
  readonly SHADING_LANGUAGE_VERSION: 0x8B8C;
  readonly CURRENT_PROGRAM: 0x8B8D;
  readonly NEVER: 0x0200;
  readonly LESS: 0x0201;
  readonly EQUAL: 0x0202;
  readonly LEQUAL: 0x0203;
  readonly GREATER: 0x0204;
  readonly NOTEQUAL: 0x0205;
  readonly GEQUAL: 0x0206;
  readonly ALWAYS: 0x0207;
  readonly KEEP: 0x1E00;
  readonly REPLACE: 0x1E01;
  readonly INCR: 0x1E02;
  readonly DECR: 0x1E03;
  readonly INVERT: 0x150A;
  readonly INCR_WRAP: 0x8507;
  readonly DECR_WRAP: 0x8508;
  readonly VENDOR: 0x1F00;
  readonly RENDERER: 0x1F01;
  readonly VERSION: 0x1F02;
  readonly NEAREST: 0x2600;
  readonly LINEAR: 0x2601;
  readonly NEAREST_MIPMAP_NEAREST: 0x2700;
  readonly LINEAR_MIPMAP_NEAREST: 0x2701;
  readonly NEAREST_MIPMAP_LINEAR: 0x2702;
  readonly LINEAR_MIPMAP_LINEAR: 0x2703;
  readonly TEXTURE_MAG_FILTER: 0x2800;
  readonly TEXTURE_MIN_FILTER: 0x2801;
  readonly TEXTURE_WRAP_S: 0x2802;
  readonly TEXTURE_WRAP_T: 0x2803;
  readonly TEXTURE_2D: 0x0DE1;
  readonly TEXTURE: 0x1702;
  readonly TEXTURE_CUBE_MAP: 0x8513;
  readonly TEXTURE_BINDING_CUBE_MAP: 0x8514;
  readonly TEXTURE_CUBE_MAP_POSITIVE_X: 0x8515;
  readonly TEXTURE_CUBE_MAP_NEGATIVE_X: 0x8516;
  readonly TEXTURE_CUBE_MAP_POSITIVE_Y: 0x8517;
  readonly TEXTURE_CUBE_MAP_NEGATIVE_Y: 0x8518;
  readonly TEXTURE_CUBE_MAP_POSITIVE_Z: 0x8519;
  readonly TEXTURE_CUBE_MAP_NEGATIVE_Z: 0x851A;
  readonly MAX_CUBE_MAP_TEXTURE_SIZE: 0x851C;
  readonly TEXTURE0: 0x84C0;
  readonly TEXTURE1: 0x84C1;
  readonly TEXTURE2: 0x84C2;
  readonly TEXTURE3: 0x84C3;
  readonly TEXTURE4: 0x84C4;
  readonly TEXTURE5: 0x84C5;
  readonly TEXTURE6: 0x84C6;
  readonly TEXTURE7: 0x84C7;
  readonly TEXTURE8: 0x84C8;
  readonly TEXTURE9: 0x84C9;
  readonly TEXTURE10: 0x84CA;
  readonly TEXTURE11: 0x84CB;
  readonly TEXTURE12: 0x84CC;
  readonly TEXTURE13: 0x84CD;
  readonly TEXTURE14: 0x84CE;
  readonly TEXTURE15: 0x84CF;
  readonly TEXTURE16: 0x84D0;
  readonly TEXTURE17: 0x84D1;
  readonly TEXTURE18: 0x84D2;
  readonly TEXTURE19: 0x84D3;
  readonly TEXTURE20: 0x84D4;
  readonly TEXTURE21: 0x84D5;
  readonly TEXTURE22: 0x84D6;
  readonly TEXTURE23: 0x84D7;
  readonly TEXTURE24: 0x84D8;
  readonly TEXTURE25: 0x84D9;
  readonly TEXTURE26: 0x84DA;
  readonly TEXTURE27: 0x84DB;
  readonly TEXTURE28: 0x84DC;
  readonly TEXTURE29: 0x84DD;
  readonly TEXTURE30: 0x84DE;
  readonly TEXTURE31: 0x84DF;
  readonly ACTIVE_TEXTURE: 0x84E0;
  readonly REPEAT: 0x2901;
  readonly CLAMP_TO_EDGE: 0x812F;
  readonly MIRRORED_REPEAT: 0x8370;
  readonly FLOAT_VEC2: 0x8B50;
  readonly FLOAT_VEC3: 0x8B51;
  readonly FLOAT_VEC4: 0x8B52;
  readonly INT_VEC2: 0x8B53;
  readonly INT_VEC3: 0x8B54;
  readonly INT_VEC4: 0x8B55;
  readonly BOOL: 0x8B56;
  readonly BOOL_VEC2: 0x8B57;
  readonly BOOL_VEC3: 0x8B58;
  readonly BOOL_VEC4: 0x8B59;
  readonly FLOAT_MAT2: 0x8B5A;
  readonly FLOAT_MAT3: 0x8B5B;
  readonly FLOAT_MAT4: 0x8B5C;
  readonly SAMPLER_2D: 0x8B5E;
  readonly SAMPLER_CUBE: 0x8B60;
  readonly VERTEX_ATTRIB_ARRAY_ENABLED: 0x8622;
  readonly VERTEX_ATTRIB_ARRAY_SIZE: 0x8623;
  readonly VERTEX_ATTRIB_ARRAY_STRIDE: 0x8624;
  readonly VERTEX_ATTRIB_ARRAY_TYPE: 0x8625;
  readonly VERTEX_ATTRIB_ARRAY_NORMALIZED: 0x886A;
  readonly VERTEX_ATTRIB_ARRAY_POINTER: 0x8645;
  readonly VERTEX_ATTRIB_ARRAY_BUFFER_BINDING: 0x889F;
  readonly IMPLEMENTATION_COLOR_READ_TYPE: 0x8B9A;
  readonly IMPLEMENTATION_COLOR_READ_FORMAT: 0x8B9B;
  readonly COMPILE_STATUS: 0x8B81;
  readonly LOW_FLOAT: 0x8DF0;
  readonly MEDIUM_FLOAT: 0x8DF1;
  readonly HIGH_FLOAT: 0x8DF2;
  readonly LOW_INT: 0x8DF3;
  readonly MEDIUM_INT: 0x8DF4;
  readonly HIGH_INT: 0x8DF5;
  readonly FRAMEBUFFER: 0x8D40;
  readonly RENDERBUFFER: 0x8D41;
  readonly RGBA4: 0x8056;
  readonly RGB5_A1: 0x8057;
  readonly RGBA8: 0x8058;
  readonly RGB565: 0x8D62;
  readonly DEPTH_COMPONENT16: 0x81A5;
  readonly STENCIL_INDEX8: 0x8D48;
  readonly DEPTH_STENCIL: 0x84F9;
  readonly RENDERBUFFER_WIDTH: 0x8D42;
  readonly RENDERBUFFER_HEIGHT: 0x8D43;
  readonly RENDERBUFFER_INTERNAL_FORMAT: 0x8D44;
  readonly RENDERBUFFER_RED_SIZE: 0x8D50;
  readonly RENDERBUFFER_GREEN_SIZE: 0x8D51;
  readonly RENDERBUFFER_BLUE_SIZE: 0x8D52;
  readonly RENDERBUFFER_ALPHA_SIZE: 0x8D53;
  readonly RENDERBUFFER_DEPTH_SIZE: 0x8D54;
  readonly RENDERBUFFER_STENCIL_SIZE: 0x8D55;
  readonly FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE: 0x8CD0;
  readonly FRAMEBUFFER_ATTACHMENT_OBJECT_NAME: 0x8CD1;
  readonly FRAMEBUFFER_ATTACHMENT_TEXTURE_LEVEL: 0x8CD2;
  readonly FRAMEBUFFER_ATTACHMENT_TEXTURE_CUBE_MAP_FACE: 0x8CD3;
  readonly COLOR_ATTACHMENT0: 0x8CE0;
  readonly DEPTH_ATTACHMENT: 0x8D00;
  readonly STENCIL_ATTACHMENT: 0x8D20;
  readonly DEPTH_STENCIL_ATTACHMENT: 0x821A;
  readonly NONE: 0;
  readonly FRAMEBUFFER_COMPLETE: 0x8CD5;
  readonly FRAMEBUFFER_INCOMPLETE_ATTACHMENT: 0x8CD6;
  readonly FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT: 0x8CD7;
  readonly FRAMEBUFFER_INCOMPLETE_DIMENSIONS: 0x8CD9;
  readonly FRAMEBUFFER_UNSUPPORTED: 0x8CDD;
  readonly FRAMEBUFFER_BINDING: 0x8CA6;
  readonly RENDERBUFFER_BINDING: 0x8CA7;
  readonly MAX_RENDERBUFFER_SIZE: 0x84E8;
  readonly INVALID_FRAMEBUFFER_OPERATION: 0x0506;
  readonly UNPACK_FLIP_Y_WEBGL: 0x9240;
  readonly UNPACK_PREMULTIPLY_ALPHA_WEBGL: 0x9241;
  readonly CONTEXT_LOST_WEBGL: 0x9242;
  readonly UNPACK_COLORSPACE_CONVERSION_WEBGL: 0x9243;
  readonly BROWSER_DEFAULT_WEBGL: 0x9244;
}

export interface WebGLRenderingContextOverloads {
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/bufferData) */
  bufferData(target: GLenum, size: GLsizeiptr, usage: GLenum): void;
  bufferData(target: GLenum, data: AllowSharedBufferSource | null, usage: GLenum): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/bufferSubData) */
  bufferSubData(target: GLenum, offset: GLintptr, data: AllowSharedBufferSource): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/compressedTexImage2D) */
  compressedTexImage2D(target: GLenum, level: GLint, internalformat: GLenum, width: GLsizei, height: GLsizei, border: GLint, data: ArrayBufferView): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/compressedTexSubImage2D) */
  compressedTexSubImage2D(target: GLenum, level: GLint, xoffset: GLint, yoffset: GLint, width: GLsizei, height: GLsizei, format: GLenum, data: ArrayBufferView): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/readPixels) */
  readPixels(x: GLint, y: GLint, width: GLsizei, height: GLsizei, format: GLenum, type: GLenum, pixels: ArrayBufferView | null): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/texImage2D) */
  texImage2D(target: GLenum, level: GLint, internalformat: GLint, width: GLsizei, height: GLsizei, border: GLint, format: GLenum, type: GLenum, pixels: ArrayBufferView | null): void;
  texImage2D(target: GLenum, level: GLint, internalformat: GLint, format: GLenum, type: GLenum, source: TexImageSource): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/texSubImage2D) */
  texSubImage2D(target: GLenum, level: GLint, xoffset: GLint, yoffset: GLint, width: GLsizei, height: GLsizei, format: GLenum, type: GLenum, pixels: ArrayBufferView | null): void;
  texSubImage2D(target: GLenum, level: GLint, xoffset: GLint, yoffset: GLint, format: GLenum, type: GLenum, source: TexImageSource): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/uniform) */
  uniform1fv(location: WebGLUniformLocation | null, v: Float32List): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/uniform) */
  uniform1iv(location: WebGLUniformLocation | null, v: Int32List): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/uniform) */
  uniform2fv(location: WebGLUniformLocation | null, v: Float32List): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/uniform) */
  uniform2iv(location: WebGLUniformLocation | null, v: Int32List): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/uniform) */
  uniform3fv(location: WebGLUniformLocation | null, v: Float32List): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/uniform) */
  uniform3iv(location: WebGLUniformLocation | null, v: Int32List): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/uniform) */
  uniform4fv(location: WebGLUniformLocation | null, v: Float32List): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/uniform) */
  uniform4iv(location: WebGLUniformLocation | null, v: Int32List): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/uniformMatrix) */
  uniformMatrix2fv(location: WebGLUniformLocation | null, transpose: GLboolean, value: Float32List): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/uniformMatrix) */
  uniformMatrix3fv(location: WebGLUniformLocation | null, transpose: GLboolean, value: Float32List): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/uniformMatrix) */
  uniformMatrix4fv(location: WebGLUniformLocation | null, transpose: GLboolean, value: Float32List): void;
}

/**
* The **`WebGLSampler`** interface is part of the WebGL 2 API and stores sampling parameters for WebGLTexture access inside of a shader.
*
* [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLSampler)
*/
export interface WebGLSampler {
}

/**
* The **`WebGLShader`** is part of the WebGL API and can either be a vertex or a fragment shader. A WebGLProgram requires both types of shaders.
*
* [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLShader)
*/
export interface WebGLShader {
}

/**
* The **`WebGLShaderPrecisionFormat`** interface is part of the WebGL API and represents the information returned by calling the WebGLRenderingContext.getShaderPrecisionFormat() method.
*
* [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLShaderPrecisionFormat)
*/
export interface WebGLShaderPrecisionFormat {
  /**
  * The read-only **`WebGLShaderPrecisionFormat.precision`** property returns the number of bits of precision that can be represented.
  *
  * [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLShaderPrecisionFormat/precision)
  */
  readonly precision: GLint;
  /**
  * The read-only **`WebGLShaderPrecisionFormat.rangeMax`** property returns the base 2 log of the absolute value of the maximum value that can be represented.
  *
  * [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLShaderPrecisionFormat/rangeMax)
  */
  readonly rangeMax: GLint;
  /**
  * The read-only **`WebGLShaderPrecisionFormat.rangeMin`** property returns the base 2 log of the absolute value of the minimum value that can be represented.
  *
  * [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLShaderPrecisionFormat/rangeMin)
  */
  readonly rangeMin: GLint;
}

/**
* The **`WebGLSync`** interface is part of the WebGL 2 API and is used to synchronize activities between the GPU and the application.
*
* [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLSync)
*/
export interface WebGLSync {
}

/**
* The **`WebGLTexture`** interface is part of the WebGL API and represents an opaque texture object providing storage and state for texturing operations.
*
* [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLTexture)
*/
export interface WebGLTexture {
}

/**
* The **`WebGLTransformFeedback`** interface is part of the WebGL 2 API and enables transform feedback, which is the process of capturing primitives generated by vertex processing. It allows to preserve the post-transform rendering state of an object and resubmit this data multiple times.
*
* [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLTransformFeedback)
*/
export interface WebGLTransformFeedback {
}

/**
* The **`WebGLUniformLocation`** interface is part of the WebGL API and represents the location of a uniform variable in a shader program.
*
* [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLUniformLocation)
*/
export interface WebGLUniformLocation {
}

/**
* The **`WebGLVertexArrayObject`** interface is part of the WebGL 2 API, represents vertex array objects (VAOs) pointing to vertex array data, and provides names for different sets of vertex data.
*
* [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLVertexArrayObject)
*/
export interface WebGLVertexArrayObject {
}

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLVertexArrayObject) */
export interface WebGLVertexArrayObjectOES {
}

export type AllowSharedBufferSource = ArrayBufferLike | ArrayBufferView;

export type Float32List = Float32Array | GLfloat[];

export type GLbitfield = number;

export type GLboolean = boolean;

export type GLclampf = number;

export type GLenum = number;

export type GLfloat = number;

export type GLint = number;

export type GLint64 = number;

export type GLintptr = number;

export type GLsizei = number;

export type GLsizeiptr = number;

export type GLuint = number;

export type GLuint64 = number;

export type Int32List = Int32Array | GLint[];

export type Uint32List = Uint32Array | GLuint[];

export type WebGLPowerPreference = "default" | "high-performance" | "low-power";

export interface WEBGL_draw_buffers {
  /**
  * The **`WEBGL_draw_buffers.drawBuffersWEBGL()`** method is part of the WebGL API and allows you to define the draw buffers to which all fragment colors are written.
  *
  * [MDN Reference](https://developer.mozilla.org/docs/Web/API/WEBGL_draw_buffers/drawBuffersWEBGL)
  */
  drawBuffersWEBGL(buffers: Iterable<GLenum>): void;
}

export interface WEBGL_multi_draw {
  /**
  * The **`WEBGL_multi_draw.multiDrawArraysInstancedWEBGL()`** method of the WebGL API renders multiple primitives from array data. It is identical to multiple calls to the gl.drawArraysInstanced() method.
  *
  * [MDN Reference](https://developer.mozilla.org/docs/Web/API/WEBGL_multi_draw/multiDrawArraysInstancedWEBGL)
  */
  multiDrawArraysInstancedWEBGL(mode: GLenum, firstsList: Int32Array | Iterable<GLint>, firstsOffset: number, countsList: Int32Array | Iterable<GLsizei>, countsOffset: number, instanceCountsList: Int32Array | Iterable<GLsizei>, instanceCountsOffset: number, drawcount: GLsizei): void;
  /**
  * The **`WEBGL_multi_draw.multiDrawArraysWEBGL()`** method of the WebGL API renders multiple primitives from array data. It is identical to multiple calls to the gl.drawArrays() method.
  *
  * [MDN Reference](https://developer.mozilla.org/docs/Web/API/WEBGL_multi_draw/multiDrawArraysWEBGL)
  */
  multiDrawArraysWEBGL(mode: GLenum, firstsList: Int32Array | Iterable<GLint>, firstsOffset: number, countsList: Int32Array | Iterable<GLsizei>, countsOffset: number, drawcount: GLsizei): void;
  /**
  * The **`WEBGL_multi_draw.multiDrawElementsInstancedWEBGL()`** method of the WebGL API renders multiple primitives from array data. It is identical to multiple calls to the gl.drawElementsInstanced() method.
  *
  * [MDN Reference](https://developer.mozilla.org/docs/Web/API/WEBGL_multi_draw/multiDrawElementsInstancedWEBGL)
  */
  multiDrawElementsInstancedWEBGL(mode: GLenum, countsList: Int32Array | Iterable<GLsizei>, countsOffset: number, type: GLenum, offsetsList: Int32Array | Iterable<GLsizei>, offsetsOffset: number, instanceCountsList: Int32Array | Iterable<GLsizei>, instanceCountsOffset: number, drawcount: GLsizei): void;
  /**
  * The **`WEBGL_multi_draw.multiDrawElementsWEBGL()`** method of the WebGL API renders multiple primitives from array data. It is identical to multiple calls to the gl.drawElements() method.
  *
  * [MDN Reference](https://developer.mozilla.org/docs/Web/API/WEBGL_multi_draw/multiDrawElementsWEBGL)
  */
  multiDrawElementsWEBGL(mode: GLenum, countsList: Int32Array | Iterable<GLsizei>, countsOffset: number, type: GLenum, offsetsList: Int32Array | Iterable<GLsizei>, offsetsOffset: number, drawcount: GLsizei): void;
}

export interface WebGL2RenderingContextBase {
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/clearBuffer) */
  clearBufferfv(buffer: GLenum, drawbuffer: GLint, values: Iterable<GLfloat>, srcOffset?: number): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/clearBuffer) */
  clearBufferiv(buffer: GLenum, drawbuffer: GLint, values: Iterable<GLint>, srcOffset?: number): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/clearBuffer) */
  clearBufferuiv(buffer: GLenum, drawbuffer: GLint, values: Iterable<GLuint>, srcOffset?: number): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/drawBuffers) */
  drawBuffers(buffers: Iterable<GLenum>): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/getActiveUniforms) */
  getActiveUniforms(program: WebGLProgram, uniformIndices: Iterable<GLuint>, pname: GLenum): any;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/getUniformIndices) */
  getUniformIndices(program: WebGLProgram, uniformNames: Iterable<string>): GLuint[] | null;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/invalidateFramebuffer) */
  invalidateFramebuffer(target: GLenum, attachments: Iterable<GLenum>): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/invalidateSubFramebuffer) */
  invalidateSubFramebuffer(target: GLenum, attachments: Iterable<GLenum>, x: GLint, y: GLint, width: GLsizei, height: GLsizei): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/transformFeedbackVaryings) */
  transformFeedbackVaryings(program: WebGLProgram, varyings: Iterable<string>, bufferMode: GLenum): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/uniform) */
  uniform1uiv(location: WebGLUniformLocation | null, data: Iterable<GLuint>, srcOffset?: number, srcLength?: GLuint): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/uniform) */
  uniform2uiv(location: WebGLUniformLocation | null, data: Iterable<GLuint>, srcOffset?: number, srcLength?: GLuint): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/uniform) */
  uniform3uiv(location: WebGLUniformLocation | null, data: Iterable<GLuint>, srcOffset?: number, srcLength?: GLuint): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/uniform) */
  uniform4uiv(location: WebGLUniformLocation | null, data: Iterable<GLuint>, srcOffset?: number, srcLength?: GLuint): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/uniformMatrix) */
  uniformMatrix2x3fv(location: WebGLUniformLocation | null, transpose: GLboolean, data: Iterable<GLfloat>, srcOffset?: number, srcLength?: GLuint): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/uniformMatrix) */
  uniformMatrix2x4fv(location: WebGLUniformLocation | null, transpose: GLboolean, data: Iterable<GLfloat>, srcOffset?: number, srcLength?: GLuint): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/uniformMatrix) */
  uniformMatrix3x2fv(location: WebGLUniformLocation | null, transpose: GLboolean, data: Iterable<GLfloat>, srcOffset?: number, srcLength?: GLuint): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/uniformMatrix) */
  uniformMatrix3x4fv(location: WebGLUniformLocation | null, transpose: GLboolean, data: Iterable<GLfloat>, srcOffset?: number, srcLength?: GLuint): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/uniformMatrix) */
  uniformMatrix4x2fv(location: WebGLUniformLocation | null, transpose: GLboolean, data: Iterable<GLfloat>, srcOffset?: number, srcLength?: GLuint): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/uniformMatrix) */
  uniformMatrix4x3fv(location: WebGLUniformLocation | null, transpose: GLboolean, data: Iterable<GLfloat>, srcOffset?: number, srcLength?: GLuint): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/vertexAttribI) */
  vertexAttribI4iv(index: GLuint, values: Iterable<GLint>): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/vertexAttribI) */
  vertexAttribI4uiv(index: GLuint, values: Iterable<GLuint>): void;
}

export interface WebGL2RenderingContextOverloads {
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/uniform) */
  uniform1fv(location: WebGLUniformLocation | null, data: Iterable<GLfloat>, srcOffset?: number, srcLength?: GLuint): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/uniform) */
  uniform1iv(location: WebGLUniformLocation | null, data: Iterable<GLint>, srcOffset?: number, srcLength?: GLuint): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/uniform) */
  uniform2fv(location: WebGLUniformLocation | null, data: Iterable<GLfloat>, srcOffset?: number, srcLength?: GLuint): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/uniform) */
  uniform2iv(location: WebGLUniformLocation | null, data: Iterable<GLint>, srcOffset?: number, srcLength?: GLuint): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/uniform) */
  uniform3fv(location: WebGLUniformLocation | null, data: Iterable<GLfloat>, srcOffset?: number, srcLength?: GLuint): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/uniform) */
  uniform3iv(location: WebGLUniformLocation | null, data: Iterable<GLint>, srcOffset?: number, srcLength?: GLuint): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/uniform) */
  uniform4fv(location: WebGLUniformLocation | null, data: Iterable<GLfloat>, srcOffset?: number, srcLength?: GLuint): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/uniform) */
  uniform4iv(location: WebGLUniformLocation | null, data: Iterable<GLint>, srcOffset?: number, srcLength?: GLuint): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/uniformMatrix) */
  uniformMatrix2fv(location: WebGLUniformLocation | null, transpose: GLboolean, data: Iterable<GLfloat>, srcOffset?: number, srcLength?: GLuint): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/uniformMatrix) */
  uniformMatrix3fv(location: WebGLUniformLocation | null, transpose: GLboolean, data: Iterable<GLfloat>, srcOffset?: number, srcLength?: GLuint): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/uniformMatrix) */
  uniformMatrix4fv(location: WebGLUniformLocation | null, transpose: GLboolean, data: Iterable<GLfloat>, srcOffset?: number, srcLength?: GLuint): void;
}

export interface WebGLRenderingContextBase {
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/vertexAttrib) */
  vertexAttrib1fv(index: GLuint, values: Iterable<GLfloat>): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/vertexAttrib) */
  vertexAttrib2fv(index: GLuint, values: Iterable<GLfloat>): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/vertexAttrib) */
  vertexAttrib3fv(index: GLuint, values: Iterable<GLfloat>): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/vertexAttrib) */
  vertexAttrib4fv(index: GLuint, values: Iterable<GLfloat>): void;
}

export interface WebGLRenderingContextOverloads {
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/uniform) */
  uniform1fv(location: WebGLUniformLocation | null, v: Iterable<GLfloat>): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/uniform) */
  uniform1iv(location: WebGLUniformLocation | null, v: Iterable<GLint>): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/uniform) */
  uniform2fv(location: WebGLUniformLocation | null, v: Iterable<GLfloat>): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/uniform) */
  uniform2iv(location: WebGLUniformLocation | null, v: Iterable<GLint>): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/uniform) */
  uniform3fv(location: WebGLUniformLocation | null, v: Iterable<GLfloat>): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/uniform) */
  uniform3iv(location: WebGLUniformLocation | null, v: Iterable<GLint>): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/uniform) */
  uniform4fv(location: WebGLUniformLocation | null, v: Iterable<GLfloat>): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/uniform) */
  uniform4iv(location: WebGLUniformLocation | null, v: Iterable<GLint>): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/uniformMatrix) */
  uniformMatrix2fv(location: WebGLUniformLocation | null, transpose: GLboolean, value: Iterable<GLfloat>): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/uniformMatrix) */
  uniformMatrix3fv(location: WebGLUniformLocation | null, transpose: GLboolean, value: Iterable<GLfloat>): void;
  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/uniformMatrix) */
  uniformMatrix4fv(location: WebGLUniformLocation | null, transpose: GLboolean, value: Iterable<GLfloat>): void;
}

export interface WebGLRenderingContextConstants {
  readonly DEPTH_BUFFER_BIT: 0x00000100;
  readonly STENCIL_BUFFER_BIT: 0x00000400;
  readonly COLOR_BUFFER_BIT: 0x00004000;
  readonly POINTS: 0x0000;
  readonly LINES: 0x0001;
  readonly LINE_LOOP: 0x0002;
  readonly LINE_STRIP: 0x0003;
  readonly TRIANGLES: 0x0004;
  readonly TRIANGLE_STRIP: 0x0005;
  readonly TRIANGLE_FAN: 0x0006;
  readonly ZERO: 0;
  readonly ONE: 1;
  readonly SRC_COLOR: 0x0300;
  readonly ONE_MINUS_SRC_COLOR: 0x0301;
  readonly SRC_ALPHA: 0x0302;
  readonly ONE_MINUS_SRC_ALPHA: 0x0303;
  readonly DST_ALPHA: 0x0304;
  readonly ONE_MINUS_DST_ALPHA: 0x0305;
  readonly DST_COLOR: 0x0306;
  readonly ONE_MINUS_DST_COLOR: 0x0307;
  readonly SRC_ALPHA_SATURATE: 0x0308;
  readonly FUNC_ADD: 0x8006;
  readonly BLEND_EQUATION: 0x8009;
  readonly BLEND_EQUATION_RGB: 0x8009;
  readonly BLEND_EQUATION_ALPHA: 0x883D;
  readonly FUNC_SUBTRACT: 0x800A;
  readonly FUNC_REVERSE_SUBTRACT: 0x800B;
  readonly BLEND_DST_RGB: 0x80C8;
  readonly BLEND_SRC_RGB: 0x80C9;
  readonly BLEND_DST_ALPHA: 0x80CA;
  readonly BLEND_SRC_ALPHA: 0x80CB;
  readonly CONSTANT_COLOR: 0x8001;
  readonly ONE_MINUS_CONSTANT_COLOR: 0x8002;
  readonly CONSTANT_ALPHA: 0x8003;
  readonly ONE_MINUS_CONSTANT_ALPHA: 0x8004;
  readonly BLEND_COLOR: 0x8005;
  readonly ARRAY_BUFFER: 0x8892;
  readonly ELEMENT_ARRAY_BUFFER: 0x8893;
  readonly ARRAY_BUFFER_BINDING: 0x8894;
  readonly ELEMENT_ARRAY_BUFFER_BINDING: 0x8895;
  readonly STREAM_DRAW: 0x88E0;
  readonly STATIC_DRAW: 0x88E4;
  readonly DYNAMIC_DRAW: 0x88E8;
  readonly BUFFER_SIZE: 0x8764;
  readonly BUFFER_USAGE: 0x8765;
  readonly CURRENT_VERTEX_ATTRIB: 0x8626;
  readonly FRONT: 0x0404;
  readonly BACK: 0x0405;
  readonly FRONT_AND_BACK: 0x0408;
  readonly CULL_FACE: 0x0B44;
  readonly BLEND: 0x0BE2;
  readonly DITHER: 0x0BD0;
  readonly STENCIL_TEST: 0x0B90;
  readonly DEPTH_TEST: 0x0B71;
  readonly SCISSOR_TEST: 0x0C11;
  readonly POLYGON_OFFSET_FILL: 0x8037;
  readonly SAMPLE_ALPHA_TO_COVERAGE: 0x809E;
  readonly SAMPLE_COVERAGE: 0x80A0;
  readonly NO_ERROR: 0;
  readonly INVALID_ENUM: 0x0500;
  readonly INVALID_VALUE: 0x0501;
  readonly INVALID_OPERATION: 0x0502;
  readonly OUT_OF_MEMORY: 0x0505;
  readonly CW: 0x0900;
  readonly CCW: 0x0901;
  readonly LINE_WIDTH: 0x0B21;
  readonly ALIASED_POINT_SIZE_RANGE: 0x846D;
  readonly ALIASED_LINE_WIDTH_RANGE: 0x846E;
  readonly CULL_FACE_MODE: 0x0B45;
  readonly FRONT_FACE: 0x0B46;
  readonly DEPTH_RANGE: 0x0B70;
  readonly DEPTH_WRITEMASK: 0x0B72;
  readonly DEPTH_CLEAR_VALUE: 0x0B73;
  readonly DEPTH_FUNC: 0x0B74;
  readonly STENCIL_CLEAR_VALUE: 0x0B91;
  readonly STENCIL_FUNC: 0x0B92;
  readonly STENCIL_FAIL: 0x0B94;
  readonly STENCIL_PASS_DEPTH_FAIL: 0x0B95;
  readonly STENCIL_PASS_DEPTH_PASS: 0x0B96;
  readonly STENCIL_REF: 0x0B97;
  readonly STENCIL_VALUE_MASK: 0x0B93;
  readonly STENCIL_WRITEMASK: 0x0B98;
  readonly STENCIL_BACK_FUNC: 0x8800;
  readonly STENCIL_BACK_FAIL: 0x8801;
  readonly STENCIL_BACK_PASS_DEPTH_FAIL: 0x8802;
  readonly STENCIL_BACK_PASS_DEPTH_PASS: 0x8803;
  readonly STENCIL_BACK_REF: 0x8CA3;
  readonly STENCIL_BACK_VALUE_MASK: 0x8CA4;
  readonly STENCIL_BACK_WRITEMASK: 0x8CA5;
  readonly VIEWPORT: 0x0BA2;
  readonly SCISSOR_BOX: 0x0C10;
  readonly COLOR_CLEAR_VALUE: 0x0C22;
  readonly COLOR_WRITEMASK: 0x0C23;
  readonly UNPACK_ALIGNMENT: 0x0CF5;
  readonly PACK_ALIGNMENT: 0x0D05;
  readonly MAX_TEXTURE_SIZE: 0x0D33;
  readonly MAX_VIEWPORT_DIMS: 0x0D3A;
  readonly SUBPIXEL_BITS: 0x0D50;
  readonly RED_BITS: 0x0D52;
  readonly GREEN_BITS: 0x0D53;
  readonly BLUE_BITS: 0x0D54;
  readonly ALPHA_BITS: 0x0D55;
  readonly DEPTH_BITS: 0x0D56;
  readonly STENCIL_BITS: 0x0D57;
  readonly POLYGON_OFFSET_UNITS: 0x2A00;
  readonly POLYGON_OFFSET_FACTOR: 0x8038;
  readonly TEXTURE_BINDING_2D: 0x8069;
  readonly SAMPLE_BUFFERS: 0x80A8;
  readonly SAMPLES: 0x80A9;
  readonly SAMPLE_COVERAGE_VALUE: 0x80AA;
  readonly SAMPLE_COVERAGE_INVERT: 0x80AB;
  readonly COMPRESSED_TEXTURE_FORMATS: 0x86A3;
  readonly DONT_CARE: 0x1100;
  readonly FASTEST: 0x1101;
  readonly NICEST: 0x1102;
  readonly GENERATE_MIPMAP_HINT: 0x8192;
  readonly BYTE: 0x1400;
  readonly UNSIGNED_BYTE: 0x1401;
  readonly SHORT: 0x1402;
  readonly UNSIGNED_SHORT: 0x1403;
  readonly INT: 0x1404;
  readonly UNSIGNED_INT: 0x1405;
  readonly FLOAT: 0x1406;
  readonly DEPTH_COMPONENT: 0x1902;
  readonly ALPHA: 0x1906;
  readonly RGB: 0x1907;
  readonly RGBA: 0x1908;
  readonly LUMINANCE: 0x1909;
  readonly LUMINANCE_ALPHA: 0x190A;
  readonly UNSIGNED_SHORT_4_4_4_4: 0x8033;
  readonly UNSIGNED_SHORT_5_5_5_1: 0x8034;
  readonly UNSIGNED_SHORT_5_6_5: 0x8363;
  readonly FRAGMENT_SHADER: 0x8B30;
  readonly VERTEX_SHADER: 0x8B31;
  readonly MAX_VERTEX_ATTRIBS: 0x8869;
  readonly MAX_VERTEX_UNIFORM_VECTORS: 0x8DFB;
  readonly MAX_VARYING_VECTORS: 0x8DFC;
  readonly MAX_COMBINED_TEXTURE_IMAGE_UNITS: 0x8B4D;
  readonly MAX_VERTEX_TEXTURE_IMAGE_UNITS: 0x8B4C;
  readonly MAX_TEXTURE_IMAGE_UNITS: 0x8872;
  readonly MAX_FRAGMENT_UNIFORM_VECTORS: 0x8DFD;
  readonly SHADER_TYPE: 0x8B4F;
  readonly DELETE_STATUS: 0x8B80;
  readonly LINK_STATUS: 0x8B82;
  readonly VALIDATE_STATUS: 0x8B83;
  readonly ATTACHED_SHADERS: 0x8B85;
  readonly ACTIVE_UNIFORMS: 0x8B86;
  readonly ACTIVE_ATTRIBUTES: 0x8B89;
  readonly SHADING_LANGUAGE_VERSION: 0x8B8C;
  readonly CURRENT_PROGRAM: 0x8B8D;
  readonly NEVER: 0x0200;
  readonly LESS: 0x0201;
  readonly EQUAL: 0x0202;
  readonly LEQUAL: 0x0203;
  readonly GREATER: 0x0204;
  readonly NOTEQUAL: 0x0205;
  readonly GEQUAL: 0x0206;
  readonly ALWAYS: 0x0207;
  readonly KEEP: 0x1E00;
  readonly REPLACE: 0x1E01;
  readonly INCR: 0x1E02;
  readonly DECR: 0x1E03;
  readonly INVERT: 0x150A;
  readonly INCR_WRAP: 0x8507;
  readonly DECR_WRAP: 0x8508;
  readonly VENDOR: 0x1F00;
  readonly RENDERER: 0x1F01;
  readonly VERSION: 0x1F02;
  readonly NEAREST: 0x2600;
  readonly LINEAR: 0x2601;
  readonly NEAREST_MIPMAP_NEAREST: 0x2700;
  readonly LINEAR_MIPMAP_NEAREST: 0x2701;
  readonly NEAREST_MIPMAP_LINEAR: 0x2702;
  readonly LINEAR_MIPMAP_LINEAR: 0x2703;
  readonly TEXTURE_MAG_FILTER: 0x2800;
  readonly TEXTURE_MIN_FILTER: 0x2801;
  readonly TEXTURE_WRAP_S: 0x2802;
  readonly TEXTURE_WRAP_T: 0x2803;
  readonly TEXTURE_2D: 0x0DE1;
  readonly TEXTURE: 0x1702;
  readonly TEXTURE_CUBE_MAP: 0x8513;
  readonly TEXTURE_BINDING_CUBE_MAP: 0x8514;
  readonly TEXTURE_CUBE_MAP_POSITIVE_X: 0x8515;
  readonly TEXTURE_CUBE_MAP_NEGATIVE_X: 0x8516;
  readonly TEXTURE_CUBE_MAP_POSITIVE_Y: 0x8517;
  readonly TEXTURE_CUBE_MAP_NEGATIVE_Y: 0x8518;
  readonly TEXTURE_CUBE_MAP_POSITIVE_Z: 0x8519;
  readonly TEXTURE_CUBE_MAP_NEGATIVE_Z: 0x851A;
  readonly MAX_CUBE_MAP_TEXTURE_SIZE: 0x851C;
  readonly TEXTURE0: 0x84C0;
  readonly TEXTURE1: 0x84C1;
  readonly TEXTURE2: 0x84C2;
  readonly TEXTURE3: 0x84C3;
  readonly TEXTURE4: 0x84C4;
  readonly TEXTURE5: 0x84C5;
  readonly TEXTURE6: 0x84C6;
  readonly TEXTURE7: 0x84C7;
  readonly TEXTURE8: 0x84C8;
  readonly TEXTURE9: 0x84C9;
  readonly TEXTURE10: 0x84CA;
  readonly TEXTURE11: 0x84CB;
  readonly TEXTURE12: 0x84CC;
  readonly TEXTURE13: 0x84CD;
  readonly TEXTURE14: 0x84CE;
  readonly TEXTURE15: 0x84CF;
  readonly TEXTURE16: 0x84D0;
  readonly TEXTURE17: 0x84D1;
  readonly TEXTURE18: 0x84D2;
  readonly TEXTURE19: 0x84D3;
  readonly TEXTURE20: 0x84D4;
  readonly TEXTURE21: 0x84D5;
  readonly TEXTURE22: 0x84D6;
  readonly TEXTURE23: 0x84D7;
  readonly TEXTURE24: 0x84D8;
  readonly TEXTURE25: 0x84D9;
  readonly TEXTURE26: 0x84DA;
  readonly TEXTURE27: 0x84DB;
  readonly TEXTURE28: 0x84DC;
  readonly TEXTURE29: 0x84DD;
  readonly TEXTURE30: 0x84DE;
  readonly TEXTURE31: 0x84DF;
  readonly ACTIVE_TEXTURE: 0x84E0;
  readonly REPEAT: 0x2901;
  readonly CLAMP_TO_EDGE: 0x812F;
  readonly MIRRORED_REPEAT: 0x8370;
  readonly FLOAT_VEC2: 0x8B50;
  readonly FLOAT_VEC3: 0x8B51;
  readonly FLOAT_VEC4: 0x8B52;
  readonly INT_VEC2: 0x8B53;
  readonly INT_VEC3: 0x8B54;
  readonly INT_VEC4: 0x8B55;
  readonly BOOL: 0x8B56;
  readonly BOOL_VEC2: 0x8B57;
  readonly BOOL_VEC3: 0x8B58;
  readonly BOOL_VEC4: 0x8B59;
  readonly FLOAT_MAT2: 0x8B5A;
  readonly FLOAT_MAT3: 0x8B5B;
  readonly FLOAT_MAT4: 0x8B5C;
  readonly SAMPLER_2D: 0x8B5E;
  readonly SAMPLER_CUBE: 0x8B60;
  readonly VERTEX_ATTRIB_ARRAY_ENABLED: 0x8622;
  readonly VERTEX_ATTRIB_ARRAY_SIZE: 0x8623;
  readonly VERTEX_ATTRIB_ARRAY_STRIDE: 0x8624;
  readonly VERTEX_ATTRIB_ARRAY_TYPE: 0x8625;
  readonly VERTEX_ATTRIB_ARRAY_NORMALIZED: 0x886A;
  readonly VERTEX_ATTRIB_ARRAY_POINTER: 0x8645;
  readonly VERTEX_ATTRIB_ARRAY_BUFFER_BINDING: 0x889F;
  readonly IMPLEMENTATION_COLOR_READ_TYPE: 0x8B9A;
  readonly IMPLEMENTATION_COLOR_READ_FORMAT: 0x8B9B;
  readonly COMPILE_STATUS: 0x8B81;
  readonly LOW_FLOAT: 0x8DF0;
  readonly MEDIUM_FLOAT: 0x8DF1;
  readonly HIGH_FLOAT: 0x8DF2;
  readonly LOW_INT: 0x8DF3;
  readonly MEDIUM_INT: 0x8DF4;
  readonly HIGH_INT: 0x8DF5;
  readonly FRAMEBUFFER: 0x8D40;
  readonly RENDERBUFFER: 0x8D41;
  readonly RGBA4: 0x8056;
  readonly RGB5_A1: 0x8057;
  readonly RGBA8: 0x8058;
  readonly RGB565: 0x8D62;
  readonly DEPTH_COMPONENT16: 0x81A5;
  readonly STENCIL_INDEX8: 0x8D48;
  readonly DEPTH_STENCIL: 0x84F9;
  readonly RENDERBUFFER_WIDTH: 0x8D42;
  readonly RENDERBUFFER_HEIGHT: 0x8D43;
  readonly RENDERBUFFER_INTERNAL_FORMAT: 0x8D44;
  readonly RENDERBUFFER_RED_SIZE: 0x8D50;
  readonly RENDERBUFFER_GREEN_SIZE: 0x8D51;
  readonly RENDERBUFFER_BLUE_SIZE: 0x8D52;
  readonly RENDERBUFFER_ALPHA_SIZE: 0x8D53;
  readonly RENDERBUFFER_DEPTH_SIZE: 0x8D54;
  readonly RENDERBUFFER_STENCIL_SIZE: 0x8D55;
  readonly FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE: 0x8CD0;
  readonly FRAMEBUFFER_ATTACHMENT_OBJECT_NAME: 0x8CD1;
  readonly FRAMEBUFFER_ATTACHMENT_TEXTURE_LEVEL: 0x8CD2;
  readonly FRAMEBUFFER_ATTACHMENT_TEXTURE_CUBE_MAP_FACE: 0x8CD3;
  readonly COLOR_ATTACHMENT0: 0x8CE0;
  readonly DEPTH_ATTACHMENT: 0x8D00;
  readonly STENCIL_ATTACHMENT: 0x8D20;
  readonly DEPTH_STENCIL_ATTACHMENT: 0x821A;
  readonly NONE: 0;
  readonly FRAMEBUFFER_COMPLETE: 0x8CD5;
  readonly FRAMEBUFFER_INCOMPLETE_ATTACHMENT: 0x8CD6;
  readonly FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT: 0x8CD7;
  readonly FRAMEBUFFER_INCOMPLETE_DIMENSIONS: 0x8CD9;
  readonly FRAMEBUFFER_UNSUPPORTED: 0x8CDD;
  readonly FRAMEBUFFER_BINDING: 0x8CA6;
  readonly RENDERBUFFER_BINDING: 0x8CA7;
  readonly MAX_RENDERBUFFER_SIZE: 0x84E8;
  readonly INVALID_FRAMEBUFFER_OPERATION: 0x0506;
  readonly UNPACK_FLIP_Y_WEBGL: 0x9240;
  readonly UNPACK_PREMULTIPLY_ALPHA_WEBGL: 0x9241;
  readonly CONTEXT_LOST_WEBGL: 0x9242;
  readonly UNPACK_COLORSPACE_CONVERSION_WEBGL: 0x9243;
  readonly BROWSER_DEFAULT_WEBGL: 0x9244;
}

export interface WebGL2RenderingContextConstants {
  readonly READ_BUFFER: 0x0C02;
  readonly UNPACK_ROW_LENGTH: 0x0CF2;
  readonly UNPACK_SKIP_ROWS: 0x0CF3;
  readonly UNPACK_SKIP_PIXELS: 0x0CF4;
  readonly PACK_ROW_LENGTH: 0x0D02;
  readonly PACK_SKIP_ROWS: 0x0D03;
  readonly PACK_SKIP_PIXELS: 0x0D04;
  readonly COLOR: 0x1800;
  readonly DEPTH: 0x1801;
  readonly STENCIL: 0x1802;
  readonly RED: 0x1903;
  readonly RGB8: 0x8051;
  readonly RGB10_A2: 0x8059;
  readonly TEXTURE_BINDING_3D: 0x806A;
  readonly UNPACK_SKIP_IMAGES: 0x806D;
  readonly UNPACK_IMAGE_HEIGHT: 0x806E;
  readonly TEXTURE_3D: 0x806F;
  readonly TEXTURE_WRAP_R: 0x8072;
  readonly MAX_3D_TEXTURE_SIZE: 0x8073;
  readonly UNSIGNED_INT_2_10_10_10_REV: 0x8368;
  readonly MAX_ELEMENTS_VERTICES: 0x80E8;
  readonly MAX_ELEMENTS_INDICES: 0x80E9;
  readonly TEXTURE_MIN_LOD: 0x813A;
  readonly TEXTURE_MAX_LOD: 0x813B;
  readonly TEXTURE_BASE_LEVEL: 0x813C;
  readonly TEXTURE_MAX_LEVEL: 0x813D;
  readonly MIN: 0x8007;
  readonly MAX: 0x8008;
  readonly DEPTH_COMPONENT24: 0x81A6;
  readonly MAX_TEXTURE_LOD_BIAS: 0x84FD;
  readonly TEXTURE_COMPARE_MODE: 0x884C;
  readonly TEXTURE_COMPARE_FUNC: 0x884D;
  readonly CURRENT_QUERY: 0x8865;
  readonly QUERY_RESULT: 0x8866;
  readonly QUERY_RESULT_AVAILABLE: 0x8867;
  readonly STREAM_READ: 0x88E1;
  readonly STREAM_COPY: 0x88E2;
  readonly STATIC_READ: 0x88E5;
  readonly STATIC_COPY: 0x88E6;
  readonly DYNAMIC_READ: 0x88E9;
  readonly DYNAMIC_COPY: 0x88EA;
  readonly MAX_DRAW_BUFFERS: 0x8824;
  readonly DRAW_BUFFER0: 0x8825;
  readonly DRAW_BUFFER1: 0x8826;
  readonly DRAW_BUFFER2: 0x8827;
  readonly DRAW_BUFFER3: 0x8828;
  readonly DRAW_BUFFER4: 0x8829;
  readonly DRAW_BUFFER5: 0x882A;
  readonly DRAW_BUFFER6: 0x882B;
  readonly DRAW_BUFFER7: 0x882C;
  readonly DRAW_BUFFER8: 0x882D;
  readonly DRAW_BUFFER9: 0x882E;
  readonly DRAW_BUFFER10: 0x882F;
  readonly DRAW_BUFFER11: 0x8830;
  readonly DRAW_BUFFER12: 0x8831;
  readonly DRAW_BUFFER13: 0x8832;
  readonly DRAW_BUFFER14: 0x8833;
  readonly DRAW_BUFFER15: 0x8834;
  readonly MAX_FRAGMENT_UNIFORM_COMPONENTS: 0x8B49;
  readonly MAX_VERTEX_UNIFORM_COMPONENTS: 0x8B4A;
  readonly SAMPLER_3D: 0x8B5F;
  readonly SAMPLER_2D_SHADOW: 0x8B62;
  readonly FRAGMENT_SHADER_DERIVATIVE_HINT: 0x8B8B;
  readonly PIXEL_PACK_BUFFER: 0x88EB;
  readonly PIXEL_UNPACK_BUFFER: 0x88EC;
  readonly PIXEL_PACK_BUFFER_BINDING: 0x88ED;
  readonly PIXEL_UNPACK_BUFFER_BINDING: 0x88EF;
  readonly FLOAT_MAT2x3: 0x8B65;
  readonly FLOAT_MAT2x4: 0x8B66;
  readonly FLOAT_MAT3x2: 0x8B67;
  readonly FLOAT_MAT3x4: 0x8B68;
  readonly FLOAT_MAT4x2: 0x8B69;
  readonly FLOAT_MAT4x3: 0x8B6A;
  readonly SRGB: 0x8C40;
  readonly SRGB8: 0x8C41;
  readonly SRGB8_ALPHA8: 0x8C43;
  readonly COMPARE_REF_TO_TEXTURE: 0x884E;
  readonly RGBA32F: 0x8814;
  readonly RGB32F: 0x8815;
  readonly RGBA16F: 0x881A;
  readonly RGB16F: 0x881B;
  readonly VERTEX_ATTRIB_ARRAY_INTEGER: 0x88FD;
  readonly MAX_ARRAY_TEXTURE_LAYERS: 0x88FF;
  readonly MIN_PROGRAM_TEXEL_OFFSET: 0x8904;
  readonly MAX_PROGRAM_TEXEL_OFFSET: 0x8905;
  readonly MAX_VARYING_COMPONENTS: 0x8B4B;
  readonly TEXTURE_2D_ARRAY: 0x8C1A;
  readonly TEXTURE_BINDING_2D_ARRAY: 0x8C1D;
  readonly R11F_G11F_B10F: 0x8C3A;
  readonly UNSIGNED_INT_10F_11F_11F_REV: 0x8C3B;
  readonly RGB9_E5: 0x8C3D;
  readonly UNSIGNED_INT_5_9_9_9_REV: 0x8C3E;
  readonly TRANSFORM_FEEDBACK_BUFFER_MODE: 0x8C7F;
  readonly MAX_TRANSFORM_FEEDBACK_SEPARATE_COMPONENTS: 0x8C80;
  readonly TRANSFORM_FEEDBACK_VARYINGS: 0x8C83;
  readonly TRANSFORM_FEEDBACK_BUFFER_START: 0x8C84;
  readonly TRANSFORM_FEEDBACK_BUFFER_SIZE: 0x8C85;
  readonly TRANSFORM_FEEDBACK_PRIMITIVES_WRITTEN: 0x8C88;
  readonly RASTERIZER_DISCARD: 0x8C89;
  readonly MAX_TRANSFORM_FEEDBACK_INTERLEAVED_COMPONENTS: 0x8C8A;
  readonly MAX_TRANSFORM_FEEDBACK_SEPARATE_ATTRIBS: 0x8C8B;
  readonly INTERLEAVED_ATTRIBS: 0x8C8C;
  readonly SEPARATE_ATTRIBS: 0x8C8D;
  readonly TRANSFORM_FEEDBACK_BUFFER: 0x8C8E;
  readonly TRANSFORM_FEEDBACK_BUFFER_BINDING: 0x8C8F;
  readonly RGBA32UI: 0x8D70;
  readonly RGB32UI: 0x8D71;
  readonly RGBA16UI: 0x8D76;
  readonly RGB16UI: 0x8D77;
  readonly RGBA8UI: 0x8D7C;
  readonly RGB8UI: 0x8D7D;
  readonly RGBA32I: 0x8D82;
  readonly RGB32I: 0x8D83;
  readonly RGBA16I: 0x8D88;
  readonly RGB16I: 0x8D89;
  readonly RGBA8I: 0x8D8E;
  readonly RGB8I: 0x8D8F;
  readonly RED_INTEGER: 0x8D94;
  readonly RGB_INTEGER: 0x8D98;
  readonly RGBA_INTEGER: 0x8D99;
  readonly SAMPLER_2D_ARRAY: 0x8DC1;
  readonly SAMPLER_2D_ARRAY_SHADOW: 0x8DC4;
  readonly SAMPLER_CUBE_SHADOW: 0x8DC5;
  readonly UNSIGNED_INT_VEC2: 0x8DC6;
  readonly UNSIGNED_INT_VEC3: 0x8DC7;
  readonly UNSIGNED_INT_VEC4: 0x8DC8;
  readonly INT_SAMPLER_2D: 0x8DCA;
  readonly INT_SAMPLER_3D: 0x8DCB;
  readonly INT_SAMPLER_CUBE: 0x8DCC;
  readonly INT_SAMPLER_2D_ARRAY: 0x8DCF;
  readonly UNSIGNED_INT_SAMPLER_2D: 0x8DD2;
  readonly UNSIGNED_INT_SAMPLER_3D: 0x8DD3;
  readonly UNSIGNED_INT_SAMPLER_CUBE: 0x8DD4;
  readonly UNSIGNED_INT_SAMPLER_2D_ARRAY: 0x8DD7;
  readonly DEPTH_COMPONENT32F: 0x8CAC;
  readonly DEPTH32F_STENCIL8: 0x8CAD;
  readonly FLOAT_32_UNSIGNED_INT_24_8_REV: 0x8DAD;
  readonly FRAMEBUFFER_ATTACHMENT_COLOR_ENCODING: 0x8210;
  readonly FRAMEBUFFER_ATTACHMENT_COMPONENT_TYPE: 0x8211;
  readonly FRAMEBUFFER_ATTACHMENT_RED_SIZE: 0x8212;
  readonly FRAMEBUFFER_ATTACHMENT_GREEN_SIZE: 0x8213;
  readonly FRAMEBUFFER_ATTACHMENT_BLUE_SIZE: 0x8214;
  readonly FRAMEBUFFER_ATTACHMENT_ALPHA_SIZE: 0x8215;
  readonly FRAMEBUFFER_ATTACHMENT_DEPTH_SIZE: 0x8216;
  readonly FRAMEBUFFER_ATTACHMENT_STENCIL_SIZE: 0x8217;
  readonly FRAMEBUFFER_DEFAULT: 0x8218;
  readonly UNSIGNED_INT_24_8: 0x84FA;
  readonly DEPTH24_STENCIL8: 0x88F0;
  readonly UNSIGNED_NORMALIZED: 0x8C17;
  readonly DRAW_FRAMEBUFFER_BINDING: 0x8CA6;
  readonly READ_FRAMEBUFFER: 0x8CA8;
  readonly DRAW_FRAMEBUFFER: 0x8CA9;
  readonly READ_FRAMEBUFFER_BINDING: 0x8CAA;
  readonly RENDERBUFFER_SAMPLES: 0x8CAB;
  readonly FRAMEBUFFER_ATTACHMENT_TEXTURE_LAYER: 0x8CD4;
  readonly MAX_COLOR_ATTACHMENTS: 0x8CDF;
  readonly COLOR_ATTACHMENT1: 0x8CE1;
  readonly COLOR_ATTACHMENT2: 0x8CE2;
  readonly COLOR_ATTACHMENT3: 0x8CE3;
  readonly COLOR_ATTACHMENT4: 0x8CE4;
  readonly COLOR_ATTACHMENT5: 0x8CE5;
  readonly COLOR_ATTACHMENT6: 0x8CE6;
  readonly COLOR_ATTACHMENT7: 0x8CE7;
  readonly COLOR_ATTACHMENT8: 0x8CE8;
  readonly COLOR_ATTACHMENT9: 0x8CE9;
  readonly COLOR_ATTACHMENT10: 0x8CEA;
  readonly COLOR_ATTACHMENT11: 0x8CEB;
  readonly COLOR_ATTACHMENT12: 0x8CEC;
  readonly COLOR_ATTACHMENT13: 0x8CED;
  readonly COLOR_ATTACHMENT14: 0x8CEE;
  readonly COLOR_ATTACHMENT15: 0x8CEF;
  readonly FRAMEBUFFER_INCOMPLETE_MULTISAMPLE: 0x8D56;
  readonly MAX_SAMPLES: 0x8D57;
  readonly HALF_FLOAT: 0x140B;
  readonly RG: 0x8227;
  readonly RG_INTEGER: 0x8228;
  readonly R8: 0x8229;
  readonly RG8: 0x822B;
  readonly R16F: 0x822D;
  readonly R32F: 0x822E;
  readonly RG16F: 0x822F;
  readonly RG32F: 0x8230;
  readonly R8I: 0x8231;
  readonly R8UI: 0x8232;
  readonly R16I: 0x8233;
  readonly R16UI: 0x8234;
  readonly R32I: 0x8235;
  readonly R32UI: 0x8236;
  readonly RG8I: 0x8237;
  readonly RG8UI: 0x8238;
  readonly RG16I: 0x8239;
  readonly RG16UI: 0x823A;
  readonly RG32I: 0x823B;
  readonly RG32UI: 0x823C;
  readonly VERTEX_ARRAY_BINDING: 0x85B5;
  readonly R8_SNORM: 0x8F94;
  readonly RG8_SNORM: 0x8F95;
  readonly RGB8_SNORM: 0x8F96;
  readonly RGBA8_SNORM: 0x8F97;
  readonly SIGNED_NORMALIZED: 0x8F9C;
  readonly COPY_READ_BUFFER: 0x8F36;
  readonly COPY_WRITE_BUFFER: 0x8F37;
  readonly COPY_READ_BUFFER_BINDING: 0x8F36;
  readonly COPY_WRITE_BUFFER_BINDING: 0x8F37;
  readonly UNIFORM_BUFFER: 0x8A11;
  readonly UNIFORM_BUFFER_BINDING: 0x8A28;
  readonly UNIFORM_BUFFER_START: 0x8A29;
  readonly UNIFORM_BUFFER_SIZE: 0x8A2A;
  readonly MAX_VERTEX_UNIFORM_BLOCKS: 0x8A2B;
  readonly MAX_FRAGMENT_UNIFORM_BLOCKS: 0x8A2D;
  readonly MAX_COMBINED_UNIFORM_BLOCKS: 0x8A2E;
  readonly MAX_UNIFORM_BUFFER_BINDINGS: 0x8A2F;
  readonly MAX_UNIFORM_BLOCK_SIZE: 0x8A30;
  readonly MAX_COMBINED_VERTEX_UNIFORM_COMPONENTS: 0x8A31;
  readonly MAX_COMBINED_FRAGMENT_UNIFORM_COMPONENTS: 0x8A33;
  readonly UNIFORM_BUFFER_OFFSET_ALIGNMENT: 0x8A34;
  readonly ACTIVE_UNIFORM_BLOCKS: 0x8A36;
  readonly UNIFORM_TYPE: 0x8A37;
  readonly UNIFORM_SIZE: 0x8A38;
  readonly UNIFORM_BLOCK_INDEX: 0x8A3A;
  readonly UNIFORM_OFFSET: 0x8A3B;
  readonly UNIFORM_ARRAY_STRIDE: 0x8A3C;
  readonly UNIFORM_MATRIX_STRIDE: 0x8A3D;
  readonly UNIFORM_IS_ROW_MAJOR: 0x8A3E;
  readonly UNIFORM_BLOCK_BINDING: 0x8A3F;
  readonly UNIFORM_BLOCK_DATA_SIZE: 0x8A40;
  readonly UNIFORM_BLOCK_ACTIVE_UNIFORMS: 0x8A42;
  readonly UNIFORM_BLOCK_ACTIVE_UNIFORM_INDICES: 0x8A43;
  readonly UNIFORM_BLOCK_REFERENCED_BY_VERTEX_SHADER: 0x8A44;
  readonly UNIFORM_BLOCK_REFERENCED_BY_FRAGMENT_SHADER: 0x8A46;
  readonly INVALID_INDEX: 0xFFFFFFFF;
  readonly MAX_VERTEX_OUTPUT_COMPONENTS: 0x9122;
  readonly MAX_FRAGMENT_INPUT_COMPONENTS: 0x9125;
  readonly MAX_SERVER_WAIT_TIMEOUT: 0x9111;
  readonly OBJECT_TYPE: 0x9112;
  readonly SYNC_CONDITION: 0x9113;
  readonly SYNC_STATUS: 0x9114;
  readonly SYNC_FLAGS: 0x9115;
  readonly SYNC_FENCE: 0x9116;
  readonly SYNC_GPU_COMMANDS_COMPLETE: 0x9117;
  readonly UNSIGNALED: 0x9118;
  readonly SIGNALED: 0x9119;
  readonly ALREADY_SIGNALED: 0x911A;
  readonly TIMEOUT_EXPIRED: 0x911B;
  readonly CONDITION_SATISFIED: 0x911C;
  readonly WAIT_FAILED: 0x911D;
  readonly SYNC_FLUSH_COMMANDS_BIT: 0x00000001;
  readonly VERTEX_ATTRIB_ARRAY_DIVISOR: 0x88FE;
  readonly ANY_SAMPLES_PASSED: 0x8C2F;
  readonly ANY_SAMPLES_PASSED_CONSERVATIVE: 0x8D6A;
  readonly SAMPLER_BINDING: 0x8919;
  readonly RGB10_A2UI: 0x906F;
  readonly INT_2_10_10_10_REV: 0x8D9F;
  readonly TRANSFORM_FEEDBACK: 0x8E22;
  readonly TRANSFORM_FEEDBACK_PAUSED: 0x8E23;
  readonly TRANSFORM_FEEDBACK_ACTIVE: 0x8E24;
  readonly TRANSFORM_FEEDBACK_BINDING: 0x8E25;
  readonly TEXTURE_IMMUTABLE_FORMAT: 0x912F;
  readonly MAX_ELEMENT_INDEX: 0x8D6B;
  readonly TEXTURE_IMMUTABLE_LEVELS: 0x82DF;
  readonly TIMEOUT_IGNORED: -1;
  readonly MAX_CLIENT_WAIT_TIMEOUT_WEBGL: 0x9247;
  readonly DEPTH_BUFFER_BIT: 0x00000100;
  readonly STENCIL_BUFFER_BIT: 0x00000400;
  readonly COLOR_BUFFER_BIT: 0x00004000;
  readonly POINTS: 0x0000;
  readonly LINES: 0x0001;
  readonly LINE_LOOP: 0x0002;
  readonly LINE_STRIP: 0x0003;
  readonly TRIANGLES: 0x0004;
  readonly TRIANGLE_STRIP: 0x0005;
  readonly TRIANGLE_FAN: 0x0006;
  readonly ZERO: 0;
  readonly ONE: 1;
  readonly SRC_COLOR: 0x0300;
  readonly ONE_MINUS_SRC_COLOR: 0x0301;
  readonly SRC_ALPHA: 0x0302;
  readonly ONE_MINUS_SRC_ALPHA: 0x0303;
  readonly DST_ALPHA: 0x0304;
  readonly ONE_MINUS_DST_ALPHA: 0x0305;
  readonly DST_COLOR: 0x0306;
  readonly ONE_MINUS_DST_COLOR: 0x0307;
  readonly SRC_ALPHA_SATURATE: 0x0308;
  readonly FUNC_ADD: 0x8006;
  readonly BLEND_EQUATION: 0x8009;
  readonly BLEND_EQUATION_RGB: 0x8009;
  readonly BLEND_EQUATION_ALPHA: 0x883D;
  readonly FUNC_SUBTRACT: 0x800A;
  readonly FUNC_REVERSE_SUBTRACT: 0x800B;
  readonly BLEND_DST_RGB: 0x80C8;
  readonly BLEND_SRC_RGB: 0x80C9;
  readonly BLEND_DST_ALPHA: 0x80CA;
  readonly BLEND_SRC_ALPHA: 0x80CB;
  readonly CONSTANT_COLOR: 0x8001;
  readonly ONE_MINUS_CONSTANT_COLOR: 0x8002;
  readonly CONSTANT_ALPHA: 0x8003;
  readonly ONE_MINUS_CONSTANT_ALPHA: 0x8004;
  readonly BLEND_COLOR: 0x8005;
  readonly ARRAY_BUFFER: 0x8892;
  readonly ELEMENT_ARRAY_BUFFER: 0x8893;
  readonly ARRAY_BUFFER_BINDING: 0x8894;
  readonly ELEMENT_ARRAY_BUFFER_BINDING: 0x8895;
  readonly STREAM_DRAW: 0x88E0;
  readonly STATIC_DRAW: 0x88E4;
  readonly DYNAMIC_DRAW: 0x88E8;
  readonly BUFFER_SIZE: 0x8764;
  readonly BUFFER_USAGE: 0x8765;
  readonly CURRENT_VERTEX_ATTRIB: 0x8626;
  readonly FRONT: 0x0404;
  readonly BACK: 0x0405;
  readonly FRONT_AND_BACK: 0x0408;
  readonly CULL_FACE: 0x0B44;
  readonly BLEND: 0x0BE2;
  readonly DITHER: 0x0BD0;
  readonly STENCIL_TEST: 0x0B90;
  readonly DEPTH_TEST: 0x0B71;
  readonly SCISSOR_TEST: 0x0C11;
  readonly POLYGON_OFFSET_FILL: 0x8037;
  readonly SAMPLE_ALPHA_TO_COVERAGE: 0x809E;
  readonly SAMPLE_COVERAGE: 0x80A0;
  readonly NO_ERROR: 0;
  readonly INVALID_ENUM: 0x0500;
  readonly INVALID_VALUE: 0x0501;
  readonly INVALID_OPERATION: 0x0502;
  readonly OUT_OF_MEMORY: 0x0505;
  readonly CW: 0x0900;
  readonly CCW: 0x0901;
  readonly LINE_WIDTH: 0x0B21;
  readonly ALIASED_POINT_SIZE_RANGE: 0x846D;
  readonly ALIASED_LINE_WIDTH_RANGE: 0x846E;
  readonly CULL_FACE_MODE: 0x0B45;
  readonly FRONT_FACE: 0x0B46;
  readonly DEPTH_RANGE: 0x0B70;
  readonly DEPTH_WRITEMASK: 0x0B72;
  readonly DEPTH_CLEAR_VALUE: 0x0B73;
  readonly DEPTH_FUNC: 0x0B74;
  readonly STENCIL_CLEAR_VALUE: 0x0B91;
  readonly STENCIL_FUNC: 0x0B92;
  readonly STENCIL_FAIL: 0x0B94;
  readonly STENCIL_PASS_DEPTH_FAIL: 0x0B95;
  readonly STENCIL_PASS_DEPTH_PASS: 0x0B96;
  readonly STENCIL_REF: 0x0B97;
  readonly STENCIL_VALUE_MASK: 0x0B93;
  readonly STENCIL_WRITEMASK: 0x0B98;
  readonly STENCIL_BACK_FUNC: 0x8800;
  readonly STENCIL_BACK_FAIL: 0x8801;
  readonly STENCIL_BACK_PASS_DEPTH_FAIL: 0x8802;
  readonly STENCIL_BACK_PASS_DEPTH_PASS: 0x8803;
  readonly STENCIL_BACK_REF: 0x8CA3;
  readonly STENCIL_BACK_VALUE_MASK: 0x8CA4;
  readonly STENCIL_BACK_WRITEMASK: 0x8CA5;
  readonly VIEWPORT: 0x0BA2;
  readonly SCISSOR_BOX: 0x0C10;
  readonly COLOR_CLEAR_VALUE: 0x0C22;
  readonly COLOR_WRITEMASK: 0x0C23;
  readonly UNPACK_ALIGNMENT: 0x0CF5;
  readonly PACK_ALIGNMENT: 0x0D05;
  readonly MAX_TEXTURE_SIZE: 0x0D33;
  readonly MAX_VIEWPORT_DIMS: 0x0D3A;
  readonly SUBPIXEL_BITS: 0x0D50;
  readonly RED_BITS: 0x0D52;
  readonly GREEN_BITS: 0x0D53;
  readonly BLUE_BITS: 0x0D54;
  readonly ALPHA_BITS: 0x0D55;
  readonly DEPTH_BITS: 0x0D56;
  readonly STENCIL_BITS: 0x0D57;
  readonly POLYGON_OFFSET_UNITS: 0x2A00;
  readonly POLYGON_OFFSET_FACTOR: 0x8038;
  readonly TEXTURE_BINDING_2D: 0x8069;
  readonly SAMPLE_BUFFERS: 0x80A8;
  readonly SAMPLES: 0x80A9;
  readonly SAMPLE_COVERAGE_VALUE: 0x80AA;
  readonly SAMPLE_COVERAGE_INVERT: 0x80AB;
  readonly COMPRESSED_TEXTURE_FORMATS: 0x86A3;
  readonly DONT_CARE: 0x1100;
  readonly FASTEST: 0x1101;
  readonly NICEST: 0x1102;
  readonly GENERATE_MIPMAP_HINT: 0x8192;
  readonly BYTE: 0x1400;
  readonly UNSIGNED_BYTE: 0x1401;
  readonly SHORT: 0x1402;
  readonly UNSIGNED_SHORT: 0x1403;
  readonly INT: 0x1404;
  readonly UNSIGNED_INT: 0x1405;
  readonly FLOAT: 0x1406;
  readonly DEPTH_COMPONENT: 0x1902;
  readonly ALPHA: 0x1906;
  readonly RGB: 0x1907;
  readonly RGBA: 0x1908;
  readonly LUMINANCE: 0x1909;
  readonly LUMINANCE_ALPHA: 0x190A;
  readonly UNSIGNED_SHORT_4_4_4_4: 0x8033;
  readonly UNSIGNED_SHORT_5_5_5_1: 0x8034;
  readonly UNSIGNED_SHORT_5_6_5: 0x8363;
  readonly FRAGMENT_SHADER: 0x8B30;
  readonly VERTEX_SHADER: 0x8B31;
  readonly MAX_VERTEX_ATTRIBS: 0x8869;
  readonly MAX_VERTEX_UNIFORM_VECTORS: 0x8DFB;
  readonly MAX_VARYING_VECTORS: 0x8DFC;
  readonly MAX_COMBINED_TEXTURE_IMAGE_UNITS: 0x8B4D;
  readonly MAX_VERTEX_TEXTURE_IMAGE_UNITS: 0x8B4C;
  readonly MAX_TEXTURE_IMAGE_UNITS: 0x8872;
  readonly MAX_FRAGMENT_UNIFORM_VECTORS: 0x8DFD;
  readonly SHADER_TYPE: 0x8B4F;
  readonly DELETE_STATUS: 0x8B80;
  readonly LINK_STATUS: 0x8B82;
  readonly VALIDATE_STATUS: 0x8B83;
  readonly ATTACHED_SHADERS: 0x8B85;
  readonly ACTIVE_UNIFORMS: 0x8B86;
  readonly ACTIVE_ATTRIBUTES: 0x8B89;
  readonly SHADING_LANGUAGE_VERSION: 0x8B8C;
  readonly CURRENT_PROGRAM: 0x8B8D;
  readonly NEVER: 0x0200;
  readonly LESS: 0x0201;
  readonly EQUAL: 0x0202;
  readonly LEQUAL: 0x0203;
  readonly GREATER: 0x0204;
  readonly NOTEQUAL: 0x0205;
  readonly GEQUAL: 0x0206;
  readonly ALWAYS: 0x0207;
  readonly KEEP: 0x1E00;
  readonly REPLACE: 0x1E01;
  readonly INCR: 0x1E02;
  readonly DECR: 0x1E03;
  readonly INVERT: 0x150A;
  readonly INCR_WRAP: 0x8507;
  readonly DECR_WRAP: 0x8508;
  readonly VENDOR: 0x1F00;
  readonly RENDERER: 0x1F01;
  readonly VERSION: 0x1F02;
  readonly NEAREST: 0x2600;
  readonly LINEAR: 0x2601;
  readonly NEAREST_MIPMAP_NEAREST: 0x2700;
  readonly LINEAR_MIPMAP_NEAREST: 0x2701;
  readonly NEAREST_MIPMAP_LINEAR: 0x2702;
  readonly LINEAR_MIPMAP_LINEAR: 0x2703;
  readonly TEXTURE_MAG_FILTER: 0x2800;
  readonly TEXTURE_MIN_FILTER: 0x2801;
  readonly TEXTURE_WRAP_S: 0x2802;
  readonly TEXTURE_WRAP_T: 0x2803;
  readonly TEXTURE_2D: 0x0DE1;
  readonly TEXTURE: 0x1702;
  readonly TEXTURE_CUBE_MAP: 0x8513;
  readonly TEXTURE_BINDING_CUBE_MAP: 0x8514;
  readonly TEXTURE_CUBE_MAP_POSITIVE_X: 0x8515;
  readonly TEXTURE_CUBE_MAP_NEGATIVE_X: 0x8516;
  readonly TEXTURE_CUBE_MAP_POSITIVE_Y: 0x8517;
  readonly TEXTURE_CUBE_MAP_NEGATIVE_Y: 0x8518;
  readonly TEXTURE_CUBE_MAP_POSITIVE_Z: 0x8519;
  readonly TEXTURE_CUBE_MAP_NEGATIVE_Z: 0x851A;
  readonly MAX_CUBE_MAP_TEXTURE_SIZE: 0x851C;
  readonly TEXTURE0: 0x84C0;
  readonly TEXTURE1: 0x84C1;
  readonly TEXTURE2: 0x84C2;
  readonly TEXTURE3: 0x84C3;
  readonly TEXTURE4: 0x84C4;
  readonly TEXTURE5: 0x84C5;
  readonly TEXTURE6: 0x84C6;
  readonly TEXTURE7: 0x84C7;
  readonly TEXTURE8: 0x84C8;
  readonly TEXTURE9: 0x84C9;
  readonly TEXTURE10: 0x84CA;
  readonly TEXTURE11: 0x84CB;
  readonly TEXTURE12: 0x84CC;
  readonly TEXTURE13: 0x84CD;
  readonly TEXTURE14: 0x84CE;
  readonly TEXTURE15: 0x84CF;
  readonly TEXTURE16: 0x84D0;
  readonly TEXTURE17: 0x84D1;
  readonly TEXTURE18: 0x84D2;
  readonly TEXTURE19: 0x84D3;
  readonly TEXTURE20: 0x84D4;
  readonly TEXTURE21: 0x84D5;
  readonly TEXTURE22: 0x84D6;
  readonly TEXTURE23: 0x84D7;
  readonly TEXTURE24: 0x84D8;
  readonly TEXTURE25: 0x84D9;
  readonly TEXTURE26: 0x84DA;
  readonly TEXTURE27: 0x84DB;
  readonly TEXTURE28: 0x84DC;
  readonly TEXTURE29: 0x84DD;
  readonly TEXTURE30: 0x84DE;
  readonly TEXTURE31: 0x84DF;
  readonly ACTIVE_TEXTURE: 0x84E0;
  readonly REPEAT: 0x2901;
  readonly CLAMP_TO_EDGE: 0x812F;
  readonly MIRRORED_REPEAT: 0x8370;
  readonly FLOAT_VEC2: 0x8B50;
  readonly FLOAT_VEC3: 0x8B51;
  readonly FLOAT_VEC4: 0x8B52;
  readonly INT_VEC2: 0x8B53;
  readonly INT_VEC3: 0x8B54;
  readonly INT_VEC4: 0x8B55;
  readonly BOOL: 0x8B56;
  readonly BOOL_VEC2: 0x8B57;
  readonly BOOL_VEC3: 0x8B58;
  readonly BOOL_VEC4: 0x8B59;
  readonly FLOAT_MAT2: 0x8B5A;
  readonly FLOAT_MAT3: 0x8B5B;
  readonly FLOAT_MAT4: 0x8B5C;
  readonly SAMPLER_2D: 0x8B5E;
  readonly SAMPLER_CUBE: 0x8B60;
  readonly VERTEX_ATTRIB_ARRAY_ENABLED: 0x8622;
  readonly VERTEX_ATTRIB_ARRAY_SIZE: 0x8623;
  readonly VERTEX_ATTRIB_ARRAY_STRIDE: 0x8624;
  readonly VERTEX_ATTRIB_ARRAY_TYPE: 0x8625;
  readonly VERTEX_ATTRIB_ARRAY_NORMALIZED: 0x886A;
  readonly VERTEX_ATTRIB_ARRAY_POINTER: 0x8645;
  readonly VERTEX_ATTRIB_ARRAY_BUFFER_BINDING: 0x889F;
  readonly IMPLEMENTATION_COLOR_READ_TYPE: 0x8B9A;
  readonly IMPLEMENTATION_COLOR_READ_FORMAT: 0x8B9B;
  readonly COMPILE_STATUS: 0x8B81;
  readonly LOW_FLOAT: 0x8DF0;
  readonly MEDIUM_FLOAT: 0x8DF1;
  readonly HIGH_FLOAT: 0x8DF2;
  readonly LOW_INT: 0x8DF3;
  readonly MEDIUM_INT: 0x8DF4;
  readonly HIGH_INT: 0x8DF5;
  readonly FRAMEBUFFER: 0x8D40;
  readonly RENDERBUFFER: 0x8D41;
  readonly RGBA4: 0x8056;
  readonly RGB5_A1: 0x8057;
  readonly RGBA8: 0x8058;
  readonly RGB565: 0x8D62;
  readonly DEPTH_COMPONENT16: 0x81A5;
  readonly STENCIL_INDEX8: 0x8D48;
  readonly DEPTH_STENCIL: 0x84F9;
  readonly RENDERBUFFER_WIDTH: 0x8D42;
  readonly RENDERBUFFER_HEIGHT: 0x8D43;
  readonly RENDERBUFFER_INTERNAL_FORMAT: 0x8D44;
  readonly RENDERBUFFER_RED_SIZE: 0x8D50;
  readonly RENDERBUFFER_GREEN_SIZE: 0x8D51;
  readonly RENDERBUFFER_BLUE_SIZE: 0x8D52;
  readonly RENDERBUFFER_ALPHA_SIZE: 0x8D53;
  readonly RENDERBUFFER_DEPTH_SIZE: 0x8D54;
  readonly RENDERBUFFER_STENCIL_SIZE: 0x8D55;
  readonly FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE: 0x8CD0;
  readonly FRAMEBUFFER_ATTACHMENT_OBJECT_NAME: 0x8CD1;
  readonly FRAMEBUFFER_ATTACHMENT_TEXTURE_LEVEL: 0x8CD2;
  readonly FRAMEBUFFER_ATTACHMENT_TEXTURE_CUBE_MAP_FACE: 0x8CD3;
  readonly COLOR_ATTACHMENT0: 0x8CE0;
  readonly DEPTH_ATTACHMENT: 0x8D00;
  readonly STENCIL_ATTACHMENT: 0x8D20;
  readonly DEPTH_STENCIL_ATTACHMENT: 0x821A;
  readonly NONE: 0;
  readonly FRAMEBUFFER_COMPLETE: 0x8CD5;
  readonly FRAMEBUFFER_INCOMPLETE_ATTACHMENT: 0x8CD6;
  readonly FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT: 0x8CD7;
  readonly FRAMEBUFFER_INCOMPLETE_DIMENSIONS: 0x8CD9;
  readonly FRAMEBUFFER_UNSUPPORTED: 0x8CDD;
  readonly FRAMEBUFFER_BINDING: 0x8CA6;
  readonly RENDERBUFFER_BINDING: 0x8CA7;
  readonly MAX_RENDERBUFFER_SIZE: 0x84E8;
  readonly INVALID_FRAMEBUFFER_OPERATION: 0x0506;
  readonly UNPACK_FLIP_Y_WEBGL: 0x9240;
  readonly UNPACK_PREMULTIPLY_ALPHA_WEBGL: 0x9241;
  readonly CONTEXT_LOST_WEBGL: 0x9242;
  readonly UNPACK_COLORSPACE_CONVERSION_WEBGL: 0x9243;
  readonly BROWSER_DEFAULT_WEBGL: 0x9244;
}