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Tire pressure: How do I animate tires with low air pressure or heavy loads?
With Craft Director Studio version 9.1 and up, Craft 4-Wheeler Extended has configurable tire pressure. If you want to create the effect manually you can follow the old workaround listed below:
Maya: Use Lattice on the tire and parent it to the WheelGroundMesh.
3Ds Max:
1. Create a Space Warp FFD(Box) and align it to the Craft Dummy wheel.
2. Link/parent this to the WheelGroundMesh so that it follows the car without rotating.
3. Now link your high poly tire, which should now be inside the FFD, to the Craft Dummy Wheel.
4. Perform a ‘Bind to Space Warp’ between the tire and the Space Warp FFD.
5. By moving the FFD’s bottom control points upwards, the wheel will be depressed at the bottom.
Important: using a deflated wheel reduces the wheel’s effective radius, and so the wheel will turn faster. For this reason, the Craft Dummy wheel also has to be reduced in radius in order for the high-poly tire to rotate correctly). The FFD-technique is also useful for animating wheels that drive over curbs.