Microsoft adds Clustered Geometry and Partitioned TLAS features to DirectX
Microsoft has detailed two new DirectX Raytracing features, Clustered Geometry and Partitioned TLAS, now in preview, designed to avoid rebuilding ray tracing acceleration structures from scratch every frame. In Microsoft's own test on a Radeon RX 9070, switching to clustered geometry raised frame rate from 1.2 to 79 fps and cut memory used for those structures by about 90%, from roughly 7.5GB to 774MB.