Function multiply3x3Vec

multiply3x3Vec(
    out: vec3.Vec3,
    mat: readonly [
        number,
        number,
        number,
        number,
        number,
        number,
        number,
        number,
        number,
        number,
        number,
        number,
        number,
        number,
        number,
        number,
    ],
    vec: readonly [number, number, number],
): vec3.Vec3
Transform a Vec3 by only the 3x3 rotation part of a Mat4.
Parameters
- out: vec3.Vec3
  the receiving vector
- mat: readonly [
      number,
      number,
      number,
      number,
      number,
      number,
      number,
      number,
      number,
      number,
      number,
      number,
      number,
      number,
      number,
      number,
  ]
  the matrix to transform with
- vec: readonly [number, number, number]
  the vector to transform
Returns vec3.Vec3
out
- Defined in core/mat4.ts:692