Streaming Out-of-core Geometry

Here is the render with huge amount of geometry polygons: 245M triangles, the lighting is HDR + directional light, 2 x RTX3080 10GB VRAM, Motobike render kernel. The amount of polygons is large and only half of them fits to GPU VRAM, so the rendering mode for this scene is out-of-core, but it's as fast as we have a GPU with larger VRAM.

Rendering Performance: 1600x900 image, 78M samples/second, 4 seconds to render 4 render iterations (256 path tracing samples per pixel).

Scene Builder Performance: 12.5 seconds to launch the renderer (read geometry meshes from files and build ray tracing acceleration structures) using two GPUs. The single GPU builds this scene in 22 seconds.

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