| shapeIndex | The shape index of the frame. |
| frameIndex | The frame index to get the weight from. |
| deltaVertices | Delta vertices output array for the frame being retreived. |
| deltaNormals | Delta normals output array for the frame being retreived. |
| deltaTangents | Delta tangents output array for the frame being retreived. |
Retreives deltaVertices, deltaNormals and deltaTangents of a blend shape frame.
deltaVetrices, deltaNormals and deltaTangents arrays must be of size = Mesh.vertexCount. Add Mesh vertices, normals or tangents to convert from frame deltas to full vectors. deltaNormals or deltaTangents may be set to null if there is no normals or tangents to be retreived for a frame.