Ball Rolling effect

Hi I’m trying to create the effect of a ball rolling. I have textured my ball but cannot make it rotate properly. I know it should rotate around the axis perpendicular to the ball moving direction.

How can I make such a rotation?

First of all by understanding what is the right perpendicular axis since you got TWO.

If you’re asking how to put the ball in the correct place and then ROTATE it, i would “concatenate transforms” simply by using glTranslate / glRotate and maybe some matrix push-pop.

Bye