So i have this round bumpmap image that is always in the same location and angle of another sprite.
Now this sprite has physics behavior and when the sprite goes to an angle the bumpmap forms some sort of a rectangle around it.
Heres a screenshot:
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As far as I know you can't rotate bumpmaps. You can use heightmaps, I believe. Or, turn rotation off for your object.
If you can't turn rotation off for whatever reason then make your physics object invisible, then have your bumpmap as a separate object and "Always -> Set position to another object (physicsball)"
Or something like that.
Edit: Heh, beat Rich by mere milliseconds
You should use height maps if you're going to rotate the object.
It's explained fully here:
http://apps.sourceforge.net/mediawiki/c ... umpmapping