View Full Version : How to know the orientation of an object?

05-07-2001, 03:35 AM

My game is a 3D-puzzle and i want to know when someone wins the game. In order to do this, i must know the orientation of all my cubes and compare it to final positions. Is someone has an idea?

05-07-2001, 06:09 AM
Don't you keep track of the orientation yourself? If you don't, you should be. Not only for drawing everything correctly, but for using that information to see if someone won.

05-07-2001, 07:18 AM

The problem is that keeping orientation with angles isn't working. In fact, making a rotation on x and then on y is not the same as making a rotation on y and then on x. So how to determine the real orientation?

05-07-2001, 10:40 AM
Mantain orientation using model view matrix of OpenGL after a lof of rotations is confuse. Is better let fixed world coordinates system and yourself apply the transformation over the vertex of the mesh using a Rotation Matrix or anything else.