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Added Vector3.transformCoordinates and Vector3.up as well as removing short-hand aliases.

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Richard Davey 2017-12-07 02:20:06 +00:00
parent 8b453f4dba
commit 7d05addcb5
1 changed files with 99 additions and 7 deletions
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106
v3/src/math/Vector3.js
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@ -23,6 +23,15 @@ var Vector3 = new Class({
}
},
up: function ()
{
this.x = 0;
this.y = 1;
this.z = 0;
return this;
},
clone: function ()
{
return new Vector3(this.x, this.y, this.z);
@ -258,6 +267,25 @@ var Vector3 = new Class({
return this;
},
transformCoordinates: function (mat)
{
var x = this.x;
var y = this.y;
var z = this.z;
var m = mat.val;
var tx = (x * m[0]) + (y * m[4]) + (z * m[8]) + m[12];
var ty = (x * m[1]) + (y * m[5]) + (z * m[9]) + m[13];
var tz = (x * m[2]) + (y * m[6]) + (z * m[10]) + m[14];
var tw = (x * m[3]) + (y * m[7]) + (z * m[11]) + m[15];
this.x = tx / tw;
this.y = ty / tw;
this.z = tz / tw;
return this;
},
transformQuat: function (q)
{
// benchmarks: http://jsperf.com/quaternion-transform-vec3-implementations
@ -368,12 +396,76 @@ var Vector3 = new Class({
});
Vector3.prototype.sub = Vector3.prototype.subtract;
Vector3.prototype.mul = Vector3.prototype.multiply;
Vector3.prototype.div = Vector3.prototype.divide;
Vector3.prototype.dist = Vector3.prototype.distance;
Vector3.prototype.distSq = Vector3.prototype.distanceSq;
Vector3.prototype.len = Vector3.prototype.length;
Vector3.prototype.lenSq = Vector3.prototype.lengthSq;
/*
Vector3.Zero = function ()
{
return new Vector3(0, 0, 0);
};
Vector3.Up = function ()
{
return new Vector3(0, 1.0, 0);
};
Vector3.Copy = function (source)
{
return new Vector3(source.x, source.y, source.z);
};
Vector3.TransformCoordinates = function (vector, transformation)
{
var x = (vector.x * transformation.m[0]) + (vector.y * transformation.m[4]) + (vector.z * transformation.m[8]) + transformation.m[12];
var y = (vector.x * transformation.m[1]) + (vector.y * transformation.m[5]) + (vector.z * transformation.m[9]) + transformation.m[13];
var z = (vector.x * transformation.m[2]) + (vector.y * transformation.m[6]) + (vector.z * transformation.m[10]) + transformation.m[14];
var w = (vector.x * transformation.m[3]) + (vector.y * transformation.m[7]) + (vector.z * transformation.m[11]) + transformation.m[15];
return new Vector3(x / w, y / w, z / w);
};
Vector3.TransformNormal = function (vector, transformation)
{
var x = (vector.x * transformation.m[0]) + (vector.y * transformation.m[4]) + (vector.z * transformation.m[8]);
var y = (vector.x * transformation.m[1]) + (vector.y * transformation.m[5]) + (vector.z * transformation.m[9]);
var z = (vector.x * transformation.m[2]) + (vector.y * transformation.m[6]) + (vector.z * transformation.m[10]);
return new Vector3(x, y, z);
};
Vector3.Dot = function (left, right)
{
return (left.x * right.x + left.y * right.y + left.z * right.z);
};
Vector3.Cross = function (left, right)
{
var x = left.y * right.z - left.z * right.y;
var y = left.z * right.x - left.x * right.z;
var z = left.x * right.y - left.y * right.x;
return new Vector3(x, y, z);
};
Vector3.Normalize = function (vector)
{
var newVector = Vector3.Copy(vector);
newVector.normalize();
return newVector;
};
Vector3.Distance = function (value1, value2)
{
return Math.sqrt(Vector3.DistanceSquared(value1, value2));
};
Vector3.DistanceSquared = function (value1, value2)
{
var x = value1.x - value2.x;
var y = value1.y - value2.y;
var z = value1.z - value2.z;
return (x * x) + (y * y) + (z * z);
};
*/
module.exports = Vector3;