Tell the material whether its geometry's colours carry alpha.
Known only at the first COMMIT: MeshMetadata says has_colors, not how many
components, and the placeholder node is built before any data is fetched. The
commit path calls this with the decoded colorComponents; a no-op when nothing
changed, so every later commit is free.
Tell the material whether its geometry's colours carry alpha.
Known only at the first COMMIT:
MeshMetadatasayshas_colors, not how many components, and the placeholder node is built before any data is fetched. The commit path calls this with the decodedcolorComponents; a no-op when nothing changed, so every later commit is free.