Octree removal 1: delete dead octree code paths #475

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opened 2026-10-06 09:30:24 +00:00 by sky_line · 1 comment

sky_line commented

2026-10-06 09:30:24 +00:00

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Delete:

LLPipeline::lineSegmentIntersectInWorld (pipeline.cpp ~1703-1877), LLSpatialGroup::lineSegmentIntersect (llspatialpartition.cpp ~1282) — no callers.
The occluder paths: processOccluders / addOccluders / doOcclusion (llvocache.cpp ~1085-1137). sUseOcclusion is 0 and VK passes do_occlusion=false.
LLViewerRegion::killObject (~1817) — no callers.
LLSpatialGroup::rebuildGeom / rebuildMesh, the LLVolumeGeometryManager rebuild paths, and the group's mVertexBuffer / mDrawMap remnants.

Restrict: rect-select grow (llglsandbox.cpp ~217-243) to PARTITION_VOLUME + PARTITION_BRIDGE. It already discards every other partition's results.

Part of #474. From the 2026-10-06 audit: the octrees are still built and maintained every frame, but almost nothing reads them. Rendering, culling, world picking, LOD, texture priority and lights all run on our own systems. **Delete:** - `LLPipeline::lineSegmentIntersectInWorld` (pipeline.cpp ~1703-1877), `LLSpatialGroup::lineSegmentIntersect` (llspatialpartition.cpp ~1282) — no callers. - The occluder paths: `processOccluders` / `addOccluders` / `doOcclusion` (llvocache.cpp ~1085-1137). `sUseOcclusion` is 0 and VK passes do_occlusion=false. - `LLViewerRegion::killObject` (~1817) — no callers. - `LLSpatialGroup::rebuildGeom` / `rebuildMesh`, the `LLVolumeGeometryManager` rebuild paths, and the group's `mVertexBuffer` / `mDrawMap` remnants. **Restrict:** rect-select grow (llglsandbox.cpp ~217-243) to `PARTITION_VOLUME` + `PARTITION_BRIDGE`. It already discards every other partition's results.

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2026-10-06 09:30:24 +00:00

sky_line referenced this issue

2026-10-06 09:30:24 +00:00

Epic: remove the scene octree / spatial partitions (built every frame, almost nothing reads them) #474

sky_line added this to the Slipstream project

2026-10-06 15:04:14 +00:00

sky_line added the