Ray Tracing (in a month....?)

This is a static raytracer written in C++ and runs entirely on the CPU (that is why it is super slow (took 8 hours to render the output below)).

Currently, it can only render spheres and has only three inbuilt materials (Lambertians, Metals and Dielectrics).

Made by following the book Ray Tracing in One Weekend.

The current output looks like this :

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Build Instructions

Dependencies

• Any C++ compiler like gcc or clang

Compiling

Almost all of the code is written in .h files so no make or cmake is required.

Simply compile main.cc using any modern C++ compiler.

Running

Just run the compiles binary and the output will be saved in a new directory as ./img/image.ppm. This is in .ppm so you will have to comvert to .png for any practical uses (you can use GIMP).

Tip : Before compiling, go to main.cc and change the cam.samples_per_pixel and cam.max_depth to be a bit lower and maybe even decrease the number of balls in the for loops above because without these modifications, it takes 8 hours to render the scene which is shown above. Do not change these settings if you have no job and want this exact scene.

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Will probably not go ahead with this one until I integrate GPU computation.