This is my take on Peter Shirley's Ray Tracing in One Weekend book.
This project is written in plain C with the aim to achieve the highest possible performance on the CPU. The primary goal of this implementation is to compare the render time to my ray tracing implementations in other languages (see below).
- Install CMake
- Clone the repository
- Optional: Change sample and thead count in
src/constants.c - Build and run the project
make
I've already implemented Peter Shirley's ray tracing in various programming languages running on CPU & GPU and compared their performance.
The performance was measured on the same scene (see image above) with the same amount of objects, the same recursive depth, the same resolution (1920 x 1080). The measured times are averaged over multiple runs.
Reference system: AMD Ryzen 9 5900X (12 Cores / 24 Threads) | AMD Radeon RX 6800 XT
| 1 sample / pixel | 100 samples / pixel | |
|---|---|---|
| Elixir | 67,200 ms | N/A |
| JavaScript - Node.js | 4,870 ms | 308 s |
| Go | 1,410 ms | 142 s |
| OCaml | 795 ms | 75 s |
| Java | 770 ms | 59 s |
| C++ | 685 ms | 70 s |
| Rust | 362 ms | 36 s |
| C | 329 ms | 33 s |
| GPU - Compute Shader | 21 ms | 2 s |
| GPU - Vulkan Ray Tracing Extension | 1 ms | 0.1 s |