Nick da Silva Posted April 10, 2015 Share Posted April 10, 2015 (edited) I'm trying to familiarize myself with the FEM solver in Houdini with a very simple scene however I keep getting a warning on my Solid Object in side DOPs. The solid object itself does not error out when initialized however when I enable to FEM solver then the warning appears. The warning is: created group "fe_quality_bad" with 71 bad primitives Anyone know what might be causing this? FYI, it's not breaking the sim but I just want to know for my own understanding. Thanks! Edited April 10, 2015 by ndasilva Quote Link to comment Share on other sites More sharing options...
edward Posted April 11, 2015 Share Posted April 11, 2015 It means that there were bad primitives (eg. zero volume, etc.) which can simulate badly or slowly. Quote Link to comment Share on other sites More sharing options...
Nick da Silva Posted April 13, 2015 Author Share Posted April 13, 2015 Hi Edward Thanks for the reply! That's exactly what I needed to know. Quote Link to comment Share on other sites More sharing options...
chrysl666 Posted October 2, 2015 Share Posted October 2, 2015 I got the same warning but i never found it a way to fix it .. any tip to share of how to fix it ?? Quote Link to comment Share on other sites More sharing options...
old school Posted October 2, 2015 Share Posted October 2, 2015 If you get the warning on the first or second frame of your simulation, then go to the object that contains the SOPs that construct the tetmesh. Try the Poly Doctor to fix the mesh. You can try converting the geometry to a VDB sdf surface field, then convert it back to polygons with VDB From Polygons. Use a Clean SOP just to remove any overlapping geometry. This should build a surface mesh that is free from self-intersections and irregularly sized face primitives. Quote Link to comment Share on other sites More sharing options...
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