Perf: cheaper rigged skinning (preskin 3.4 ms) #258

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opened 2026-10-03 02:34:27 +00:00 by sky_line · 0 comments

sky_line commented

2026-10-03 02:34:27 +00:00

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Measured at a Baltimare party (85 avatars, 4K, 5090, FSR native AA, RT shadows): ~47-54 FPS, GPU ~20 ms ≈ CPU main ~21 ms (balanced).

c_preskin = 3.37 ms/frame: every rigged vertex of every avatar is re-skinned every frame. Skip avatars off-frustum/occluded (cull before preskin), reuse last frame's skinned verts when the pose is unchanged (held frames), lower update rate / LOD skinning for distant avatars, skip policy-hidden avatars.

Measured at a Baltimare party (85 avatars, 4K, 5090, FSR native AA, RT shadows): ~47-54 FPS, GPU ~20 ms ≈ CPU main ~21 ms (balanced). c_preskin = 3.37 ms/frame: every rigged vertex of every avatar is re-skinned every frame. Skip avatars off-frustum/occluded (cull before preskin), reuse last frame's skinned verts when the pose is unchanged (held frames), lower update rate / LOD skinning for distant avatars, skip policy-hidden avatars.

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2026-10-03 02:34:27 +00:00

sky_line added this to the Slipstream project

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

sky_line referenced this issue

2026-10-10 09:27:32 +00:00

Make held animation frames free: skip pre-skin / weld / BLAS refit for avatars whose pose was not re-evaluated (pelvis-local pre-skin) #632