Source
void copyFrom(Matrix3D matrix) {
_data[00] = matrix.m00;
_data[01] = matrix.m10;
_data[02] = matrix.m20;
_data[03] = matrix.m30;
_data[04] = matrix.m01;
_data[05] = matrix.m11;
_data[06] = matrix.m21;
_data[07] = matrix.m31;
_data[08] = matrix.m02;
_data[09] = matrix.m12;
_data[10] = matrix.m22;
_data[11] = matrix.m32;
_data[12] = matrix.m03;
_data[13] = matrix.m13;
_data[14] = matrix.m23;
_data[15] = matrix.m33;
}