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I used texture paint option to paint over some 3d model. I would like to have a way to differentiate the different colored areas on the model based on something that I can code. To that end, I tried exporting the painted model as a Wavefront .OBJ file. It does give me a companion .MTL file but I'm not entirely sure if that gives me what I want to achieve. Neither does the .OBJ file, at least from what I understand.

Are there any other export file formats from which I may be able to get the color information in some alphanumeric values? Or is it possible to do so with the .OBJ file?

Bernhard Listing
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  • You can directly export image textures in a raster format like PNG, you simply need to unpack your files – Gorgious Jan 04 '22 at 08:46
  • @Gorgious how do you unpack the PNG? – Bernhard Listing Jan 04 '22 at 08:52
  • You can just save the image externally with ALT + S. – mqbaka mqbaka Jan 04 '22 at 11:59
  • @mqbakamqbaka Could you please elaborate? In Blender with ALT + S there comes a little dialogue bubble at a corner saying "Packed to memory image "" ." Then what? – Bernhard Listing Jan 04 '22 at 12:46
  • That means your image is packed inside blender. If your image is packed, you can press SHIFT + ALT + S to save it externally. It will pop up a dialog that allows you to save it to a location of your choice. – mqbaka mqbaka Jan 04 '22 at 13:45
  • @mqbakamqbaka So how to get the color information from the PNG? I already had the PNG. What I want to get is the color info in some alphanumeric values. I tried to open the PNG file in a notepad but that didn't work. – Bernhard Listing Jan 04 '22 at 14:51

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