Transform arg of type Vector3 using the perspective transformation
defined by this.
Source
Vector3 perspectiveTransform(Vector3 arg) {
final argStorage = arg._v3storage;
final x_ = (_m4storage[0] * argStorage[0]) +
(_m4storage[4] * argStorage[1]) +
(_m4storage[8] * argStorage[2]) +
_m4storage[12];
final y_ = (_m4storage[1] * argStorage[0]) +
(_m4storage[5] * argStorage[1]) +
(_m4storage[9] * argStorage[2]) +
_m4storage[13];
final z_ = (_m4storage[2] * argStorage[0]) +
(_m4storage[6] * argStorage[1]) +
(_m4storage[10] * argStorage[2]) +
_m4storage[14];
final w_ = 1.0 /
((_m4storage[3] * argStorage[0]) +
(_m4storage[7] * argStorage[1]) +
(_m4storage[11] * argStorage[2]) +
_m4storage[15]);
argStorage[0] = x_ * w_;
argStorage[1] = y_ * w_;
argStorage[2] = z_ * w_;
return arg;
}