applyMatrix4 method

Vector3 applyMatrix4(
  1. Matrix4 m
)

Implementation

Vector3 applyMatrix4(Matrix4 m) {
  var e = m.elements;

  var x = this.x;
  var y = this.y;
  var z = this.z;

  var w = 1 / (e[3] * x + e[7] * y + e[11] * z + e[15]);

  this.x = (e[0] * x + e[4] * y + e[8] * z + e[12]) * w;
  this.y = (e[1] * x + e[5] * y + e[9] * z + e[13]) * w;
  this.z = (e[2] * x + e[6] * y + e[10] * z + e[14]) * w;

  return this;
}