SFNCY/CUDA-Path-Tracing

GPU based, progressive rendering, Monte Carlo Path Tracing, Reflection/volume scattering models and materials

Rendering Demo

Test scene

Library and external dependancy

• cuda
• glut
• glew

Features

• Progressive rendering with GPU BVH acceleration
• Triangle mesh handling (uv, normal, material) and texturing
• Monte Carlo Path Tracing
• Reflection models and materials
• Volumn scattering
• Camera effects

Future features maybe

• Real time progressive ray tracing
• Complex scene with diverse materials
• Dynamic objects

Run it on your PC

• Install cuda (glut & glew included in the repo)
• Click "raytracer.exe"
• Modify the scene by "data/sceneDesc.json"
• I build with mingw32-make, check "make_test.bat"

References

• framework based on Matching Socks CUDA path tracer by Samuel Lapere, 2016 https://raytracey.blogspot.com
• bvh based on the GPU ray tracing framework of Timo Aila, Samuli Laine and Tero Karras (Nvidia Research), based on Source code for original framework:
  • https://code.google.com/archive/p/understanding-the-efficiency-of-ray-traversal-on-gpus/
  • https://research.nvidia.com/publication/understanding-efficiency-ray-traversal-gpus-kepler-and-fermi-addendum
  • https://mediatech.aalto.fi/~timo/HPG2009/
• anti-aliasing, depth of field based on https://github.com/peterkutz/GPUPathTracer
• material modeling, surface/media based on "Physically Based Rendering: From Theory To Implementation", by Matt Pharr, Wenzel Jakob, and Greg Humphreys https://github.com/mmp/pbrt-v3, http://pbrt.org