I''m trying to move objects forward/backwards in the way they are rotated... so far i have /* X rotation */ dir[0]=-sin(x*M_PI/180.0); dir[1]=cos(x*M_PI/180.0); dir[2]=0; /* X/Y rotation */ dir[0]=sin(x*M_PI/180.0); dir[1]=cos(y*M_PI/180.0); dir[2]=cos(x*M_PI/180.0)*sin(y*M_PI/180.0); but whats X/Y/Z and is the X/Y correct? After i find the rotations i add then into the positions of the object: pos.x+=temp*dir[0]; pos.y+=temp*dir[1]; pos.z+=temp*dir[2];