Function scale

scale(out: mat4, a: ReadonlyMat4, v: ReadonlyVec3): mat4
Scales the mat4 by the dimensions in the given vec3 not using vectorization
Parameters
- out: mat4
  the receiving matrix
- a: ReadonlyMat4
  the matrix to scale
- v: ReadonlyVec3
  the vec3 to scale the matrix by
Returns mat4
out