sky_line/Slipstream

Cluster LOD 2a: skinning and avatar deformation over selected clusters #747

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opened 2026-10-13 01:57:40 +00:00 by sky_line · 2 comments

sky_line commented

2026-10-13 01:57:40 +00:00

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Part of #642. Wave 2 (after wave 1 merges).

Pre-skin (#632) walks the selected-cluster list, so skinning cost follows the cut.
Deforming bounds and error under animation (joint-stretch bounds).
Weld pairs across attachments (#641) and body/clothing layering (#611) hold for any cut.

Rules for this work (all sub-tickets):

Behind RenderVKClusterLOD (default off). With it off, the existing rigged LOD controller (#561 / #613) and every current path are untouched.
Newest path first, chosen by extension presence; every slower path is an additive fallback, forceable on the newest card via RenderVKClusterForceTier.
Failures never crash: a missing page / failed allocation falls back to the coarser parent cut; no unbounded growth (fixed pools, byte budgets, live/cap/peak stats).

Part of #642. **Wave 2** (after wave 1 merges). - Pre-skin (#632) walks the selected-cluster list, so skinning cost follows the cut. - Deforming bounds and error under animation (joint-stretch bounds). - Weld pairs across attachments (#641) and body/clothing layering (#611) hold for any cut. **Rules for this work (all sub-tickets):** - Behind `RenderVKClusterLOD` (default off). With it off, the existing rigged LOD controller (#561 / #613) and every current path are untouched. - Newest path first, chosen by extension presence; every slower path is an additive fallback, forceable on the newest card via `RenderVKClusterForceTier`. - Failures never crash: a missing page / failed allocation falls back to the coarser parent cut; no unbounded growth (fixed pools, byte budgets, live/cap/peak stats).

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sky_line added this to the Slipstream project

2026-10-13 01:57:40 +00:00

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2026-10-13 01:57:40 +00:00

[Epic] Cluster LOD (meshlets + DAG, Nanite-style) for avatars, extensible to dense static mesh #642

sky_line commented

2026-10-13 03:35:53 +00:00

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Agent working on this (wave 2, on the merged wave-1 code).

Agent working on this (wave 2, on the merged wave-1 code).

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2026-10-13 03:35:53 +00:00

sky_line referenced this issue from a commit

2026-10-14 05:50:50 +00:00

Cluster LOD 2a (#747): cluster pre-skin, posed bounds, per-avatar switch, weld on the cut

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2026-10-14 05:50:50 +00:00

Cluster LOD 2a (#747): unresolved skins never alias avatar 0; stretch table in ReBAR memory

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2026-10-14 05:50:50 +00:00

Merge #747: cluster LOD 2a skinning onto 2c (controller, pre-pass, pipelining)

sky_line referenced this issue from a commit

2026-10-14 05:50:50 +00:00

Cluster LOD rigged RT: switched avatars trace their cluster cut (#747 / #748)

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2026-10-14 05:50:50 +00:00

Cluster RT perf pass: memory share, per-avatar rigged arena, static admission + cut reuse, lift gate, rig-list cull

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2026-10-15 03:16:15 +00:00

RT shadow mask: view-slope receiver offset (far grazing shards / row comb) + self-hit view

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2026-10-18 22:22:33 +00:00

sky_line referenced this issue from a commit

2026-10-22 08:20:13 +00:00

#195 #85 #869 merged RT shadow pass: sun / moon trace in pass 15, SHADOW reads it

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2026-10-22 08:20:13 +00:00

#85 / #869: generic shadow core for pass 15, projector receiver-bias parity, projector wall-bleed fix, sun-channel skip

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2026-10-22 08:20:13 +00:00

RT shadows: back-face self-shadow -- no projector / sun light through a receiver's own wall (RenderVKRTBackfaceSelfShadow)

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2026-10-24 09:07:08 +00:00

#1008: cluster RT -- rigged RT cut decoupled from the raster cut (bands, cadence, coarser mid / far cuts, pose-delta CLAS rebuilds)

sky_line referenced this issue from a commit

2026-10-25 06:21:59 +00:00

#1048: one cluster-rig lift probe, one closest-hit walk, one single-ray sun core

sky_line commented

2026-10-25 09:54:07 +00:00

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Fixed in 1.4.1 (63c0f74898). Reopen if you still see it.

Fixed in 1.4.1 (63c0f74898). Reopen if you still see it.

sky_line closed this issue

2026-10-25 09:54:07 +00:00

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sky_line/Slipstream#747

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