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35 lines
2.0 KiB
Markdown
35 lines
2.0 KiB
Markdown
# Understandable RayTracing in 256 lines of bare C++
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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](https://en.wikipedia.org/wiki/WTFPL).
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**Check [the wiki](https://github.com/ssloy/tinyraytracer/wiki) that accompanies the source code. The second raytracing chapter is available [in the tinykaboom repository](https://github.com/ssloy/tinykaboom/wiki). If you are looking for a software rasterizer, check the [other part of the lectures](https://github.com/ssloy/tinyrenderer/wiki).**
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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:
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## compilation
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```sh
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git clone https://github.com/ssloy/tinyraytracer.git
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cd tinyraytracer
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mkdir build
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cd build
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cmake ..
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make
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```
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You can open the project in Gitpod, a free online dev evironment for GitHub:
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[](https://gitpod.io/#https://github.com/ssloy/tinyraytracer)
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On open, the editor will compile & run the program as well as open the resulting image in the editor's preview.
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Just change the code in the editor and rerun the script (use the terminal's history) to see updated images.
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# Homework assignment
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[homework_assignment branch](https://github.com/ssloy/tinyraytracer/tree/homework_assignment) contains all necessary stuff to easily add environment maps:
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... and triangulated meshes:
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All boring code (image/obj files serializer etc) is already added; to obtain the above image it suffices to add 10-20 lines of code.
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