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Thread: Which is best way to animate wheel with flat tire?

  1. #1

    Which is best way to animate wheel with flat tire?

    Which is best way to animate wheel rotation with flat tire?
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    Thanks!

  2. #2
    There is probably some fancy rig for this somewhere.. I can think of one way of doing it that is somewhat simple.

    Separate the rim from the tire, make the tire a child of the rim. rotate the rim, make a simple expresion or use nodes to rotate the tire negative to the rims rotation on the forward rotation axis, so it basically counter rotates what the rim does and it stays static. As it is static you can now use morphs, bones what ever you want to simulate the lower presure. All the textures and shading of the tire should use the rim as the "reference object" so they rotate with it.

  3. #3
    Goes bump in the night RebelHill's Avatar
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    Easiest way is to use a displacement tied to Y distance to simply smoosh the geo. As the wheel rotates, the displacement stays fixed (relatively speaking) and you get a smooshy, rotatable wheel.
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  4. #4
    Much thanks, Danner and RebelHill for great and usable suggestions!
    First i have try that way http://www.youtube.com/watch?v=FPHq2...ature=youtu.be
    If that not enough will try suggestions.

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    You might still find the book relevant enough to buy, I'm always looking up my copy for various info.

    Go to here and find Chapter 22 - read pages 792 - 794 incl.

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  7. #7

    an old SoftFX video tutorial on it >
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  8. #8

    same video, on youtube >

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  9. #9
    But LW can't do nothing like the below video right? Wanted to know. Metalink might pull some tricks and a field of bones too, but hard to setup no?
    http://screencast.com/t/yuAiwOdpCrcA

    Cheers
    Last edited by probiner; 11-25-2013 at 03:52 PM.

  10. #10
    Goes bump in the night RebelHill's Avatar
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    well LW doesnt have a native lattice deformer, but for simple shapes such as a wheel/tyre you could pretty much the same thing using nodal, yep.
    LSR Surface and Rendering Tuts.
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  11. #11
    Nope, LW don't have Lattice Defomrer (or FDD as it's called in MAX) .

    It would be much much easier if it had.
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  13. #13
    Goes bump in the night RebelHill's Avatar
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    thats done using the scaled parent space (oval eye) trick, with plane effector to flatten the contact geo.
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  14. #14

    but how is the wheel rotating, a morph perhaps?
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  15. #15
    Goes bump in the night RebelHill's Avatar
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    same way the eye rotates... It just rotates, plain and simple. The effector flattens whatever part of the geo comes in contact and the stretch comes from a scaled parent space.
    LSR Surface and Rendering Tuts.
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