Sparse voxel signed distance octree ray-guided GPU streaming @Alexander_Sannikov
Sparse voxel signed distance octree ray-guided GPU streaming  @Alexander_Sannikov
Uploaded September 2021 | Updated September 2026, 1 week ago
Total static storage space (RAM): 2.5GB
Total static octree nodes: 900k
Average nodes present on the GPU: 50k
SDF brick size: 8x8x8
Maximum voxel resolution: 4k^3 (building a more detailed tree would take longer than 15 minutes, but runtime performance should be practically the same)
Despite this demo looking like a generic SDF fractal raymarcher, voxel data can be arbitrary.

Some highlights:
00:00 intro
00:19 LOD demonstration
00:33 ray-guided culling/LOD
01:02 individual bricks
01:45 rasterization-based bricks
02:08 distance LODs
02:20 fractal hidden chamber
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Alexander Sannikov |

Sparse voxel signed distance octree ray-guided GPU streaming

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