Matrix4d.transformDirection

Undocumented in source. Be warned that the author may not have intended to support it.
  1. Vector3d transformDirection(Vector3d dest)
  2. Vector3d transformDirection(Vector3d v, Vector3d dest)
    struct Matrix4d
    transformDirection
  3. Vector3d transformDirection(double x, double y, double z, Vector3d dest)

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