multiply2 method
Implementation
Matrix4 multiply2(Matrix4 a, Matrix4 b) {
final ae = a.storage;
final be = b.storage;
final te = storage;
final a11 = ae[0], a12 = ae[4], a13 = ae[8], a14 = ae[12];
final a21 = ae[1], a22 = ae[5], a23 = ae[9], a24 = ae[13];
final a31 = ae[2], a32 = ae[6], a33 = ae[10], a34 = ae[14];
final a41 = ae[3], a42 = ae[7], a43 = ae[11], a44 = ae[15];
final b11 = be[0], b12 = be[4], b13 = be[8], b14 = be[12];
final b21 = be[1], b22 = be[5], b23 = be[9], b24 = be[13];
final b31 = be[2], b32 = be[6], b33 = be[10], b34 = be[14];
final b41 = be[3], b42 = be[7], b43 = be[11], b44 = be[15];
te[0] = a11 * b11 + a12 * b21 + a13 * b31 + a14 * b41;
te[4] = a11 * b12 + a12 * b22 + a13 * b32 + a14 * b42;
te[8] = a11 * b13 + a12 * b23 + a13 * b33 + a14 * b43;
te[12] = a11 * b14 + a12 * b24 + a13 * b34 + a14 * b44;
te[1] = a21 * b11 + a22 * b21 + a23 * b31 + a24 * b41;
te[5] = a21 * b12 + a22 * b22 + a23 * b32 + a24 * b42;
te[9] = a21 * b13 + a22 * b23 + a23 * b33 + a24 * b43;
te[13] = a21 * b14 + a22 * b24 + a23 * b34 + a24 * b44;
te[2] = a31 * b11 + a32 * b21 + a33 * b31 + a34 * b41;
te[6] = a31 * b12 + a32 * b22 + a33 * b32 + a34 * b42;
te[10] = a31 * b13 + a32 * b23 + a33 * b33 + a34 * b43;
te[14] = a31 * b14 + a32 * b24 + a33 * b34 + a34 * b44;
te[3] = a41 * b11 + a42 * b21 + a43 * b31 + a44 * b41;
te[7] = a41 * b12 + a42 * b22 + a43 * b32 + a44 * b42;
te[11] = a41 * b13 + a42 * b23 + a43 * b33 + a44 * b43;
te[15] = a41 * b14 + a42 * b24 + a43 * b34 + a44 * b44;
return this;
}