1. #1

    Default Vertex Color export

    hi about zbrush export Vertex Color rgb
    i have make try with little cube and see on block note what's we can read about him
    the goal is reimport this in unity i looking on the web and i'm surprised of found nothing about this
    so all help is welcome for sure




    # File exported by ZBrush version 4.6
    # www.zbrush.com
    #Vertex Count 12
    #UV Vertex Count 12
    #Face Count 8
    #Auto scale x=1.000000 y=1.000000 z=1.000000
    #Auto offset x=0.000000 y=0.000000 z=0.000000
    mtllib PM3D_Cube3D.mtl
    usemtl defaultMat
    v 0 -0 1
    v 0 -0 1
    v -0.49999994 0.99999982 -0
    v -0.99999994 -0.5 -0
    v 0 -0 1
    v 0.50000006 -0.99999988 -0
    v 0 -0 1
    v 0.99999988 0.5 -0
    v 0 -0 -1
    v 0 -0 -1
    v 0 -0 -1
    v 0 -0 -1
    # The following MRGB block contains ZBrush Vertex Color (Polypaint) and masking output as 4 hexadecimal values per vertex. The vertex color format is MMRRGGBB with up to 64 entries per MRGB line.
    #MRGB fffb0000fffb0000ff000afaff72e400fffb0000fff30b00ff fb0000fffb0000ff000afaff000afaff000afaff000afa
    # End of MRGB block
    vt 0.1875 0
    vt 0.9375 0
    vt 0.9375 0.5
    vt 0.1875 0.5
    vt 0.4375 0
    vt 0.4375 0.5
    vt 0.6875 0
    vt 0.6875 0.5
    vt 0.6875 1
    vt 0.9375 1
    vt 0.1875 1
    vt 0.4375 1
    g Group4992
    f 1/1 2/2 3/3 4/4
    f 5/5 1/1 4/4 6/6
    f 7/7 5/5 6/6 8/8
    f 2/2 7/7 8/8 3/3
    f 3/3 8/8 9/9 10/10
    f 4/4 3/3 10/10 11/11
    f 11/11 12/12 6/6 4/4
    f 8/8 6/6 12/12 9/9

  2. #2
    Moderator Follow User Gallery
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    Default

    Yes, that is a custom tag for ZBrush polypaint and not part of the OBJ specification. That means that any applications that want to make use of the data have to implement a custom parser. For example, I believe XNormal will read the polypaint data from a ZBrush OBJ.

  3. #3

    Default

    yes i'm close to goal i think's i have make post to unity forum
    for see if can help maybie vertex order can play on how is work

    http://forum.unity3d.com/threads/248...22#post1640122

  4. #4
    Member Follow User Gallery
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    Default

    Blender handle very well zbrush polypaint data from obj's

    And shame for Pixologic Zbrush can export polypaint data in obj but there is no way to import it back... how is that possible ?

  5. #5

    Default

    interessing for sure yes

  6. #6
    Senior Member Follow User Gallery
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    Default

    I would also like to know how to get vertex color obj, back into zbrush.

  7. #7
    New Member Follow User Gallery
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    Default Zbrush to meshlab to blender

    I've had success with opening Zbrush obj files with polypaint in Meshlab. From there I have successfully saved the file out as a .PLY and had a successful render of the polypaint in Blender. You have to turn on the vertex color in the material editor of blender to get it to show up.

    I've also been able to open polypainted obj files in SAP Visual Enterprise.

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