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3d questions - Macromedia Director 3D

Hi, have a few 3D questions. Sorry if they area too simple, an just a beginner. - Is worldPosition of a model the center of the model? - If I want to find a point a certain below (down the y axis) from the world position, how do I do that? - If I'm making my 3d scene in Max, how can I define the worldposition of models? Is the origin fixed when you start your Max file? Thanks for the support....

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  1. #1

    Default 3d questions

    Hi, have a few 3D questions. Sorry if they area too simple, an just a
    beginner.
    - Is worldPosition of a model the center of the model?
    - If I want to find a point a certain below (down the y axis) from the
    world position, how do I do that?
    - If I'm making my 3d scene in Max, how can I define the worldposition
    of models? Is the origin fixed when you start your Max file?

    Thanks for the support.

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    stu Guest

  2. #2

    Default Re: 3d questions

    [q]Originally posted by: stu
    1) Is worldPosition of a model the center of the model?
    2) If I want to find a point a certain below (down the y axis) from the
    world position, how do I do that?
    3) If I'm making my 3d scene in Max, how can I define the worldposition
    of models? Is the origin fixed when you start your Max file?[/q]

    1) only in case of primitives (pivot = bounding box center = geometrical
    center).
    2) I'm not sure what do you mean with "find a point a certain below", but you
    can cast a ray and check out the '#isectPosition'
    3) select the model, click on "Hierarchy / Affect Pivot Only" and set the
    position & rotation of the pivot as you like.

    cheers

    necromanthus Guest

  3. #3

    Default Re: 3d questions

    Thanks.


    stu Guest

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