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Computes creased vertex normals for 3D tiles in a Web Worker so tile processing doesn't block the main thread. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
This was referenced Jun 12, 2026
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Related issue: #33292
Description
Google Photorealistic 3D Tiles ship without vertex normals, so
webgl_loader_3dtilescomputes creased normals for every loaded tile. This ran synchronously on the main thread during tile parse, causing visible hitches while navigating.This PR adds
TileCreasedNormalsPlugin(examples/jsm/misc/), which computes the normals in a Web Worker instead./fyi @shotamatsuda @gkjohnson