Verville_Pierluc Posted March 18, 2014 Share Posted March 18, 2014 (edited) Hi Odforce, I am currently working on a shot that requires identical Mattes from a software to another. I use Houdini 12.5. Apparently Houdini has no direct implentation of Ptex. I searched and I found a way on the net by modifying the Mantra custom shader. It seems to work in part. I get a deformation from displacement, but not as much as the Mesh from Mudbox. Plus, the displacement creates little ''holes'' around the displaced areas. One of you has ever used Ptex with Houdini? What is the appropriate workflow for Ptex in Houdini? https://copy.com/mSjQbJCfMpLf Thank you very much for your help. Edited March 18, 2014 by Verville_Pierluc Quote Link to comment Share on other sites More sharing options...
symek Posted March 18, 2014 Share Posted March 18, 2014 (edited) Houdini does support Ptex natively. Look at TextureVOP, it accepts both standard and ptex files. If you connect TextureVOP directly to shader's Cf you will see correct render. The question is whether your target is vector displaced or not? Because the map looks very different from target geometry. Can you render correct geometry (matching your target) with that file in any other renderer? edit: for example, forehead in your map has value around 0.8, and spots bellow 5.0, why then your geometry is more displaced on forehead? Edited March 18, 2014 by symek Quote Link to comment Share on other sites More sharing options...
foam Posted March 19, 2014 Share Posted March 19, 2014 This workflow worked for me - http://www.tutorialized.com/tutorial/Ptex-workflow-%28Mudbox--Houdini%29/70299 Quote Link to comment Share on other sites More sharing options...
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