hampuseh Posted April 11, 2019 Share Posted April 11, 2019 Hello! I am in the progress of uv-mapping some stuff. Is there a way to create id maps in Houdini? This is needed because I want to export my object into substance painter and texture in there. Quote Link to comment Share on other sites More sharing options...
davpe Posted April 11, 2019 Share Posted April 11, 2019 hi, you can create arbitrary attribute on geometry, read it in shader (bind VOP) and bake it into a texture from there. Quote Link to comment Share on other sites More sharing options...
hampuseh Posted April 11, 2019 Author Share Posted April 11, 2019 Thanks for the reply. I am not really sure I understand what you mean. At the moment I have different groups with different colours that I've set but I am unable to somehow bake out the colors onto the uv's to create id maps. Quote Link to comment Share on other sites More sharing options...
davpe Posted April 12, 2019 Share Posted April 12, 2019 check out the hip file with an example uvid.hiplc Quote Link to comment Share on other sites More sharing options...
hampuseh Posted April 12, 2019 Author Share Posted April 12, 2019 Thank you so much for this! When I try to copy what you've done in my scene it doesn't work, when I choose to look at the "id" panel I only get a black screen. However, when I import the same asset and uvs to your scene it works so I am kind of interested in what settings I am missing.. I am very grateful for your help :=) Quote Link to comment Share on other sites More sharing options...
hampuseh Posted April 12, 2019 Author Share Posted April 12, 2019 Nvm I got it working thank you, I forgot to add the material with the bind to actually use the Id attribute! Quote Link to comment Share on other sites More sharing options...
Sergey Filin Posted January 20, 2021 Share Posted January 20, 2021 You could just assign your colours to vertices and then bake it to color ID in Substance. Texture set settings -> Bake Mesh Maps -> ID. Just make sure Color Source is set to Vertex color Quote Link to comment Share on other sites More sharing options...
Drunkenpanda Posted July 24, 2022 Share Posted July 24, 2022 Hello, I cant seem to get _%(CHANNEL)s_ to actually work i`m on 19.5 looking here: https://www.sidefx.com/docs/houdini/render/expressions didn`t make me anny wiser. files that are not in exr format only give me the color channel and are thius not verry usefull. Annyone able to help me out ? Quote Link to comment Share on other sites More sharing options...
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