Enable triangle-winding reversal for mirrored meshes.
await it once, after your assets are added and before registerScene. Applies to both PBR and
Standard materials, and keeps working when a mesh's mirroring changes at runtime: each frame the
watcher only looks at meshes whose world matrix actually changed (an integer version compare),
computes a determinant for those alone, and rebuilds a pipeline only when the sign really flipped.
Only the runtime watcher is scoped to scene. The pipeline-side winding resolution is
installed process-wide the first time this is called, so in a multi-scene application every scene
starts resolving winding from its meshes' world determinants — including scenes that never passed
themselves here. That makes those scenes render mirrored meshes correctly rather than inside-out,
but they will not pick up a mirroring that changes after their renderables are built; call this
for each scene that needs runtime tracking.
The watcher is appended to the scene's per-frame callbacks so it sees the transforms produced by
animations and user code in the same frame. Call it again after adding an asset that registers its
own per-frame hooks (e.g. an animated glTF loaded later) to re-anchor it — repeat calls replace
that scene's previous watcher rather than stacking another one.
Enable triangle-winding reversal for mirrored meshes.
awaitit once, after your assets are added and beforeregisterScene. Applies to both PBR and Standard materials, and keeps working when a mesh's mirroring changes at runtime: each frame the watcher only looks at meshes whose world matrix actually changed (an integer version compare), computes a determinant for those alone, and rebuilds a pipeline only when the sign really flipped.Only the runtime watcher is scoped to
scene. The pipeline-side winding resolution is installed process-wide the first time this is called, so in a multi-scene application every scene starts resolving winding from its meshes' world determinants — including scenes that never passed themselves here. That makes those scenes render mirrored meshes correctly rather than inside-out, but they will not pick up a mirroring that changes after their renderables are built; call this for each scene that needs runtime tracking.The watcher is appended to the scene's per-frame callbacks so it sees the transforms produced by animations and user code in the same frame. Call it again after adding an asset that registers its own per-frame hooks (e.g. an animated glTF loaded later) to re-anchor it — repeat calls replace that scene's previous watcher rather than stacking another one.