transformMesh

Applies a transform matrix to every Primitive in the given Mesh.

Method:

• If any primitives are shared by other meshes, they will be detached.
• If any vertex streams are shared by primitives of other meshes, vertex data will be overwritten unless overwrite=false or the indices are masked. If overwrite=false, a detached copy of the vertex stream is made before applying the transform.
• Primitives within the mesh sharing vertex streams will continue to share those streams.
• For indexed primitives, only indexed vertices are modified.

Example:

import { fromTranslation } from 'gl-matrix/mat4';
import { transformMesh } from '@gltf-transform/functions';

// offset vertices, y += 10.
transformMesh(mesh, fromTranslation([], [0, 10, 0]));