glpt

Simple Path Tracer using OpenGL Compute Shaders, following Peter Shirley's Book and Alan Wolfe's Blog.

Dependencies

• dear imgui
• stb_image
• GLM, SDL, GLEW

Features

• IBL using Equirectangular HDRIs
• Thin lens depth-of-field
• Basic Tonemapping controls

TODO

• IBL importance sampling
  • https://developer.nvidia.com/gpugems/gpugems3/part-iii-rendering/chapter-20-gpu-based-importance-sampling
  • https://computergraphics.stackexchange.com/questions/2391/importance-sampling-of-environment-maps
  • https://cseweb.ucsd.edu/~ravir/papers/structured/structured.pdf
• 'Proper' BSDF
• Model Loading & BVH construction (yuck!)

Screenshots