| Session Name: | Ray-Traced Irradiance Fields (Presented by NVIDIA) |
| Speaker(s): | Morgan McGuire |
| Company Name(s): | NVIDIA |
| Track / Format: | Programming |
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| Overview: | NVIDIA will show how to combine glossy reflection ray tracing with diffuse ray-traced irradiance field probes. This creates a complete dynamic global illumination solution that scales across all DXR GPUs and minimizes light leaking without requiring manual per-probe or lightmap work by artists. It fits into modern game engines by directly replacing screen-space ray tracing and baked irradiance probes. The key breakthroughs are a fast way of ray tracing and updating irradiance instead of denoising individual samples or convolving radiance probes, and a new moment-based depth scheme for preventing light and shadow from leaking through walls. |
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