This is my take on Peter Shirley's Ray Tracing in One Weekend book.
This project uses Java and is intended to serve as a reference point in the performance comparison (see below).
- Clone the repository
- Optional: Change sample and thread count in
src/main/java/dev/twentyfive/raytracing/RayTracing.java - Build the project
./gradlew jar
- Run the jar file
java -jar ./build/libs/java-ray-tracing-1.0.0.jar
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 |