gpapaioa Posted April 27, 2016 Share Posted April 27, 2016 Hello everyone. I am facing a problem with smoke and VDB collisions. Even with high resolution VDB I get the stepping effect you see on the image, when the collision surface has inclination. Anyone has any solution or any tips? Thank you. Quote Link to comment Share on other sites More sharing options...
Atom Posted April 27, 2016 Share Posted April 27, 2016 So what does your collision object look like? Quote Link to comment Share on other sites More sharing options...
gpapaioa Posted April 27, 2016 Author Share Posted April 27, 2016 Geometry on the left, VDB on the right. Must find a way to avoid the stepping on the VDB. Any clues? Quote Link to comment Share on other sites More sharing options...
Atom Posted April 27, 2016 Share Posted April 27, 2016 (edited) I see what you mean when I recreated your example scene. However, I was able to greatly reduce the stepping effect by increasing the Uniform Division of the collision object quite a bit. And lowering the value on the smoke resolution. I think the sloped angle is the worst case scenario for these styles of conversion. Here is my collision set to 192 Uniform Divisions and smoke set to 0.1. Also try following up the convertVDB with a VDB Smooth. ap_smoke_stepping.hipnc Edited April 27, 2016 by Atom Quote Link to comment Share on other sites More sharing options...
gpapaioa Posted April 27, 2016 Author Share Posted April 27, 2016 Thanx for you time Atom. I see you are using Static Object collision not VDB. So I will probably try the same. Quote Link to comment Share on other sites More sharing options...
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