applyMatrix4 method
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;
}