Function updateMeshTangents
-
updateMeshTangents(
engine: EngineContext,
mesh: Mesh,
tangents: Float32Array,
vertexOffset?: number,
vertexCount?: number,
sourceVertexOffset?: number,
): voidParameters
- engine: EngineContext
- mesh: Mesh
- tangents: Float32Array
- vertexOffset: number = 0
OptionalvertexCount: number- sourceVertexOffset: number = 0
Returns void
Re-upload (part of) a mesh's TANGENT buffer — the twin of
updateMeshColorsfor dynamically re-generated geometry whose per-vertex tangent (vec4) payload changes each rebuild (e.g. a procedural batch that streams a per-vertex coordinate frame / mask through the tangent slot). The tangent attribute is vec4 (16 bytes/vertex). No-op if the mesh was created without tangents. Zero-allocation GPU upload only.