Originally published at: https://developer.nvidia.com/blog/tips-acceleration-structure-compaction/
In ray tracing, more geometries can reside in the GPU memory than with the rasterization approach because rays may hit the geometries out of the view frustum. You can let the GPU compact acceleration structures to save memory usage. For some games, compaction reduces the memory footprint for a bottom-level acceleration structure (BLAS) by at…
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