alextardif.com
GPU Tracing Participating Media
Alex Tardif2026-03-15
Open original article →Summary
Alex Tardif presents an HLSL implementation of concepts from "Physically Based Rendering: From Theory To Implementation" focusing on participating media for global illumination using RGB instead of spectral data. The work simplifies complex PBRT approaches, provides example renders, discusses common implementation challenges, and suggests optimizations like maximum density grids. Additional resources for volumetric light transport and denoising are also recommended.
Key Ideas
HLSL implementation of PBRT participating media
Focus on global illumination, RGB-based
Optimization tips for volume rendering
Further reading on volumetric light transport