A novel component of RTGI 01702 is its temporal cache that stores indirect irradiance in a clipmap of spherical harmonics (SH). The cache updates at variable rates: static surfaces every 16 frames, dynamic objects every 2 frames. This reduces ray casting overhead by ~70% in typical scenes.
We benchmarked RTGI 01702 against two prior systems: RTGI Legacy (2023) and NVIDIA RTXGI SDK 1.1. Test scene: Sponza Atrium with 500 dynamic lights and animated characters. rtgi 01702
| Metric | RTGI Legacy | RTXGI 1.1 | RTGI 01702 | |--------|-------------|-----------|-------------| | Ray budget (per frame) | 4 Mrays | 2.5 Mrays | 1.8 Mrays | | Denoising time (1080p) | 4.2 ms | 2.8 ms | 1.4 ms | | Temporal stability (MSE over 240 frames) | 0.031 | 0.022 | 0.009 | | Energy conservation error | 12% loss | 7% loss | 1.2% loss | | Frame time (total, RTX 4080) | 24 ms | 18 ms | 13.7 ms | A novel component of RTGI 01702 is its
Observation: RTGI 01702 achieves a stable 72+ FPS with better energy preservation and lower noise. We benchmarked RTGI 01702 against two prior systems:
RTGI 01702 defines a hybrid rasterization + ray tracing pipeline organized into four main stages:
Ray-Traced Global Illumination simulates how light bounces naturally between surfaces. Unlike screen-space ambient occlusion (SSAO) or baked lightmaps, RTGI calculates indirect lighting in real time, creating more realistic shadows, color bleeding, and ambient occlusion.