src/Mat44.js
function Mat44( that ) {
        that = that || [
            1, 0, 0, 0,
            0, 1, 0, 0,
            0, 0, 1, 0,
            0, 0, 0, 1
        ];
        if ( that instanceof Array ) {
            this.data = that;
        } else {
            this.data = new Array( 16 );
            this.data[0] = that.data[0];
            this.data[1] = that.data[1];
            this.data[2] = that.data[2];
            this.data[3] = that.data[3];
            this.data[4] = that.data[4];
            this.data[5] = that.data[5];
            this.data[6] = that.data[6];
            this.data[7] = that.data[7];
            this.data[8] = that.data[8];
            this.data[9] = that.data[9];
            this.data[10] = that.data[10];
            this.data[11] = that.data[11];
            this.data[12] = that.data[12];
            this.data[13] = that.data[13];
            this.data[14] = that.data[14];
            this.data[15] = that.data[15];
        }
    }
function Mat44( that ) {
        that = that || [
            1, 0, 0, 0,
            0, 1, 0, 0,
            0, 0, 1, 0,
            0, 0, 0, 1
        ];
        if ( that instanceof Array ) {
            this.data = that;
        } else {
            this.data = new Array( 16 );
            this.data[0] = that.data[0];
            this.data[1] = that.data[1];
            this.data[2] = that.data[2];
            this.data[3] = that.data[3];
            this.data[4] = that.data[4];
            this.data[5] = that.data[5];
            this.data[6] = that.data[6];
            this.data[7] = that.data[7];
            this.data[8] = that.data[8];
            this.data[9] = that.data[9];
            this.data[10] = that.data[10];
            this.data[11] = that.data[11];
            this.data[12] = that.data[12];
            this.data[13] = that.data[13];
            this.data[14] = that.data[14];
            this.data[15] = that.data[15];
        }
    }
Instantiates a Mat44 object.
@class Mat44
@classdesc A 4x4 column-major matrix.