Nvidia’s RTX Mega Geometry 2.0 adds on-demand geometry streaming
The update lets ray-traced scenes use meshes larger than VRAM budgets by dialing back detail instead of constantly shuffling data.
Nvidia has updated its RTX Mega Geometry SDK to version 2.0, adding streamed continuous level-of-detail clusters so ray-traced scenes can use meshes that exceed available VRAM. When the memory limit is reached, the system reduces geometric detail rather than repeatedly moving geometry in and out of VRAM; its adjustable defaults allocate 2GB to streamed geometry, 2GB to ray-tracing acceleration structures and 4GB to textures. Nvidia’s Zorah sample shows the potential scale: its courtyard view uses 1.5GB of mesh data in VRAM, while the sample contains 31GB of mesh data overall. The release is aimed at developers, and Nvidia has not disclosed which Mega Geometry version Gears of War: E-Day uses. Players can first see Nvidia’s Nanite ray tracing in action during the game’s early access on Oct. 1.
Why it matters
RTX Mega Geometry 2.0 shifts how detailed scenes are handled on current GPUs by trading constant data swaps for controlled reductions in geometric detail when memory runs short. With default budgets that split VRAM between streamed geometry, ray-tracing structures and textures, developers can now target scenes whose total mesh data far exceeds physical memory, as shown by Nvidia’s Zorah sample, while keeping performance more predictable for players.
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Sources
- Tom's Hardware