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Thread: Animate a cone opening / closing?

  1. #1

    Animate a cone opening / closing?

    2nd curly question for the day:

    How to animate a cone (geometry) opening and closing?

    The problem with morphs is of course that the vertex transforms are linear. And of course what I want is a radial transform.


  2. #2
    Unemployed Jester sandman300's Avatar
    Join Date
    Apr 2004
    Phoenix AZ
    In what way do you want it to open?
    For Is and Is-not though with Rule and Line
    And UP-AND-DOWN by Logic I define,
    Of all that one should care to fathom, I
    was never deep in anything but--Wine.

  3. #3
    Consider how the cone angle of a spotlight is animatable.
    With my cone mesh, of course, I wish to keep the length of the sides constant as the cone angle changes.

    (By 'open and close' I refer simply to varying the cone angle).

  4. #4
    Super Member SplineGod's Avatar
    Join Date
    Feb 2003
    Hastings, New Zealand
    Use two morphs, one channel tied to the other. As the cone expands the length decreases.

  5. #5
    Goes bump in the night RebelHill's Avatar
    Join Date
    Nov 2003
    If you're just wanting the cone to get wider/fatter, then that's a linear transform, morphs are fine.
    LSR Surface and Rendering Tuts.
    RHiggit Rigging and Animation Tools
    RHA Animation Tutorials
    RHR Rigging Tutorials
    RHN Nodal Tutorials
    YT Vids Tuts for all

  6. #6
    Thanks guys!


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