Hi, after 2 days i've gave up. Problem is: i want to move a node forward by a keypress for example W. Well, moving on x+, x- or z+, z- is done. But i want to move node to forward. (Where it looking, facing at) variables i got: node rotation, node speed, node x,y,z points. Tried something like: $NODE_X += (cos(($PI/360)*($NODE_YROTATION+90))*$MOVE_SPEED) $NODE_Z += (cos(($PI/360)*($NODE_YROTATION+90))*$MOVE_SPEED) bad idea? my math is FF btw. Really waiting 4 your help.