sky_line/Slipstream

Fork 1

Octree removal 6: move octree-entry data onto LLDrawable / LLVOCacheEntry, then delete llvieweroctree / LLSpatialGroup #480

New issue

Closed

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

Owner

Many systems read the per-entry data rather than the tree:

getSpatialExtents, getPositionGroup, getBinRadius;
mDistanceWRTCamera;
the visibility frame stamps (setVisible / sCurVisible).

Readers include the clean renderer (avatar extents), texture streaming (vkTextureStreamVisible), LOD (calcLOD), LLDrawable::updateDistance and the VOCache.

Do: move these fields onto LLDrawable / LLVOCacheEntry. Then delete llvieweroctree.*, LLSpatialGroup / LLSpatialPartition, and lloctree.h usage in newview.

Keep the per-mesh triangle octrees (llvolumeoctree.h, the glTF primitive octree). They are the narrow-phase for picking.

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. Many systems read the per-entry data rather than the tree: - `getSpatialExtents`, `getPositionGroup`, `getBinRadius`; - `mDistanceWRTCamera`; - the visibility frame stamps (`setVisible` / `sCurVisible`). Readers include the clean renderer (avatar extents), texture streaming (`vkTextureStreamVisible`), LOD (`calcLOD`), `LLDrawable::updateDistance` and the VOCache. **Do:** move these fields onto `LLDrawable` / `LLVOCacheEntry`. Then delete `llvieweroctree.*`, `LLSpatialGroup` / `LLSpatialPartition`, and `lloctree.h` usage in newview. **Keep** the per-mesh triangle octrees (llvolumeoctree.h, the glTF primitive octree). They are the narrow-phase for picking.

sky_line added the

priority

medium

perf

labels

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 referenced this issue

2026-10-07 01:00:55 +00:00

Octree removal 5: replace object-cache interest management (VOCache partition cull) #479

sky_line referenced this issue from a commit

2026-10-07 07:27:37 +00:00

VOCache: flat per-region grid cull replaces the octree walk (RenderVKVOCacheGrid)

sky_line referenced this issue

2026-10-08 00:24:25 +00:00

LL perf (Core): Octree insert failures restart from the root #388

sky_line added the

status

in-progress

label

2026-10-08 00:24:26 +00:00

sky_line referenced this issue from a commit

2026-10-08 01:52:57 +00:00

#480: drop the VOCache octree fallback; the grid is the only cache cull

sky_line referenced this issue from a commit

2026-10-08 01:52:57 +00:00

#480: delete the spatial partitions, bridges and LLDrawInfo

sky_line referenced this issue from a commit

2026-10-08 01:52:57 +00:00

#480: replace the viewer octree with a shared spatial entry

sky_line referenced this issue from a commit

2026-10-08 01:52:57 +00:00

#480: drop the octree settings and debug displays

sky_line referenced this issue from a commit

2026-10-08 01:52:57 +00:00

#480: llvocache.h includes <map> / <set> itself

sky_line referenced this issue from a commit

2026-10-08 01:52:57 +00:00

#480: forward-declare LLFace in llvovolume.h (LLVolumeGeometryManager)

sky_line added

and removed

labels

2026-10-09 04:40:38 +00:00

sky_line commented

2026-10-09 08:53:45 +00:00

Author

Owner

Done: merged in 58c9cfef0d (2026-10-07), shipped in 1.2.0 Beta 6. The viewer octree is replaced by a shared spatial entry (8042249519), octree settings and debug displays removed (116adb9fa5); llspatialpartition is gone from the tree.

Done: merged in 58c9cfef0d (2026-10-07), shipped in 1.2.0 Beta 6. The viewer octree is replaced by a shared spatial entry (8042249519), octree settings and debug displays removed (116adb9fa5); llspatialpartition is gone from the tree.

sky_line closed this issue

2026-10-09 08:53:45 +00:00

sky_line referenced this issue from a commit

2026-10-10 22:19:25 +00:00

VK: Render Metadata > Physics Shapes and Bounding Boxes (#29)

sky_line removed the

status

testing

label

2026-10-20 15:03:02 +00:00