Hi there, not sure if this topic has been covered before (can´t get the search engine to work today :( . But I looked at the ArcBall tutorial and liked it. So I took it and plugged it into some of my own code. Now I got it to work there and had to find out that it only works properly in 2D. I mean, the arcball reacts like it should only if you are looking at it down the z-axis. From any other angle it the rotations are wrong. Now I wanted to ask if there is a way to make it work even when the arcball is faced from a different angle. Maybe somebody had that same problem before ? I´d appreciate any help greatly. Thanks. Twist

Yes, that is what I am talking about. I already plugged the arcball into my program. And I was quite happy with it. Until I found what I mentioned above.

Would be glad for help.

Twist

I have no problems with the arcball. It works properly in 3d. Sounds like you have a general problem with your rotations.

In my renderloop i do the camera transformations first and then glMultMatrix the arcball matrix-array i constructed with OpenGL's ModelView-Matrix.

Hope this helps a bit.