setQuat method
Matrix3
setQuat(
- Quaternion q
Implementation
Matrix3 setQuat(Quaternion q ) {
Float32List te = storage;
double x = q.x, y = q.y, z = q.z, w = q.w;
double x2 = x + x, y2 = y + y, z2 = z + z;
double xx = x * x2, xy = x * y2, xz = x * z2;
double yy = y * y2, yz = y * z2, zz = z * z2;
double wx = w * x2, wy = w * y2, wz = w * z2;
te[0] = 1 - ( yy + zz );
te[1] = xy - wz;
te[2] = xz + wy;
te[3] = xy + wz;
te[4] = 1 - ( xx + zz );
te[5] = yz - wx;
te[6] = xz - wy;
te[7] = yz + wx;
te[8] = 1 - ( xx + yy );
return this;
}