transformPrimitive

Applies a transform matrix to a Primitive.

When calling transformPrimitive, any un-masked vertices are overwritten directly in the underlying vertex streams. If streams should be detached instead, see transformMesh.

Example:

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

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