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Thread: error message "has no POSITION source"

  1. #1

    error message "has no POSITION source"

    Hi all
    I'm starting a new game project, and therefore I'm testing a new production pipeline.
    First I try to export / import collada Xml files from 3dsMax6. Importing the example file provided with Collada Viewer works without any problem, but when I try view the same file exported by myself from 3dsmax, I get following error message.

    C:\home\alex\utils\COLLADA_120\COLLADA\viewer\Debu g_GL>cviewer.exe ..\..\example
    <mesh> under <geometry id="MeshFromFace-3-Editable_Poly"> has no POSITION source

    main() Scene read

    Could you tell me what happends? Did I make something wrong?
    What does it mean: "has no POSITION source"
    Thanks a lot,

  2. #2
    Junior Member
    Join Date
    Feb 2005
    Dallas, TX

    There might be a mismatch between schema versions here. The 1.2 style has a <vertices> element which contains what the spec calls mesh-vertices (and I just think of as the topology of the mesh). Then the <polygons> (or whichever prim) contains an input with "VERTEX" semantic that references the <vertices> for topology info and can also have other semantics as inputs (normals, etc)...

    The older (< 1.2) style just had all the sources and no <vertices> - So I guess my suggestion is to check that the import/export schema versions match. And see what version of the viewer you have as well.

  3. #3
    Senior Member
    Join Date
    Jul 2004
    Santa Clara
    There was a problem in the Max exporter that was posted recently.
    It was a 1.1 exporter, even thought the message said it was a 1.2 exporter.

    This should be fine now. Please grab a new copy of the Max exporter.


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