A brief computer graphics / rendering course

3d 3d-graphics c-plus-plus computer-graphics cpp fun graphics images learning raytracer raytracing raytracing-engine rendering rendering-engine shaders software-renderer tutorial

Go to file

Dmitry V. Sokolov 769d9c952a Update Readme.md		2019-02-20 14:00:15 +01:00
.gitignore	checkerboard	2019-01-20 12:27:10 +01:00
.gitpod.yml	Added gitpod support	2019-01-22 07:24:00 +00:00
CMakeLists.txt	First commit; rudimentary framebuffer check	2019-01-20 12:13:53 +01:00
Dockerfile	Added gitpod support	2019-01-22 07:24:00 +00:00
Readme.md	Update Readme.md	2019-02-20 14:00:15 +01:00
anaglyph.jpg	anaglyph with envmap	2019-01-30 22:38:58 +01:00
geometry.h	nicer expression for the ray direction	2019-01-23 22:41:38 +01:00
out.jpg	checkerboard	2019-01-20 12:27:10 +01:00
tinyraytracer.cpp	a bit of polishing	2019-01-24 10:06:56 +01:00
trace.png	An image to better explain the computation of ray directions	2019-01-22 12:47:57 +01:00

Readme.md

Understandable RayTracing in 256 lines of bare C++

This repository is a support code for my computer graphics lectures. It is not meant to be the ultimate rendering code or even physically realistic. It is meant to be simple. This project is distributed under the DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE.

Check the wiki that accompanies the source code. The second raytracing chapter is available in the tinykaboom repository. If you are looking for a software rasterizer, check the other part of the lectures.

In my lectures I tend to avoid third party libraries as long as it is reasonable, because it forces to understand what is happening under the hood. So, the raytracing 256 lines of plain C++ give us this result:

compilation

git clone https://github.com/ssloy/tinyraytracer.git
cd tinyraytracer
mkdir build
cd build
cmake ..
make

You can open the project in Gitpod, a free online dev evironment for GitHub:

On open, the editor will compile & run the program as well as open the resulting image in the editor's preview. Just change the code in the editor and rerun the script (use the terminal's history) to see updated images.