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Every time I try to export a obj from some 3d model making program it exports without indices for the texture coordinates. I don't want x//xn y//yn z//zn I want x/xn/u y/yn/v z/zn/w. I've tried blender and maya. Maya doesn't have a option for exporting these. But blender will let you choose whether you want to write normals and texture points. How can I get the texture point indices in there?

Andrew Wilson
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  • I think if you export Materials in Maya, you'll get texture coordinates. Check the little box on the export screen to the right of the file dialog. – AndyG Apr 02 '14 at 20:36
  • The only options I have are "Default file extension", "Preserve references", "Export unloaded references", "Groups", "Points Groups", "Materials", "Smoothing", "Normals". It's not the texture coordinates I want. It's the indices in the face. – Andrew Wilson Apr 02 '14 at 20:43
  • Won't the .mtl file that gets exported have those? The .obj format doesn't store texture coords IIRC – AndyG Apr 02 '14 at 20:44
  • no there are 3 different types of indices for .obj. f x//xn y//yn z//zn, f x/xn/u y/yn/v z/zn/w, and f x/u y/v z/w – Andrew Wilson Apr 02 '14 at 20:46

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Blendr's site mentions that it can export UVs, did you check that? Blender's Wavefront OBJ options

Steve Sarcinella
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  • Yeah recently I used Blender to export them and it worked but since like yesterday it won't export them as x/xn/u y/yn/v z/zn/w. I just keep getting x//xn y//yn z//zn for the indices. That format won't work with my obj parser. – Andrew Wilson Apr 02 '14 at 20:35