art3mis Posted January 15, 2019 Share Posted January 15, 2019 Hi Have a Vellum network with 2 pieces of geometry draped separately, then merged and input to a single Vellum Solver. The problem is that I want ‘Self Collision’ to be only enabled on 1 of these merged geos. How would I accomplish this? Quote Link to comment Share on other sites More sharing options...
anim Posted January 15, 2019 Share Posted January 15, 2019 https://www.sidefx.com/forum/topic/60379/?page=1#post-269763 Quote Link to comment Share on other sites More sharing options...
art3mis Posted January 15, 2019 Author Share Posted January 15, 2019 Thanks. However I believe there is still the issue of the 'Self Collisions' toggle on the actual Vellum Solver overriding anything defined in a wrangle further upstream. Guessing this requires 'hacking' the actual Solver? Quote Link to comment Share on other sites More sharing options...
anim Posted January 15, 2019 Share Posted January 15, 2019 4 minutes ago, art3mis said: However I believe there is still the issue of the 'Self Collisions' toggle on the actual Vellum Solver overriding anything defined in a wrangle further upstream. that's not the case you geometry that has i@disableself or i@disableexternal at 1 will ignore those collisions regardless of the solver level settings as attributes are more granular the problem that you are hitting is that all the vellum geometry is self and any other object in the same dopsim is external as far as I know there is no way to do collisiongroups to distinguish individual pieces within vellum geo and define more granular collision pairing, I may be wrong though as Vellum is still being actively developed Quote Link to comment Share on other sites More sharing options...
art3mis Posted January 15, 2019 Author Share Posted January 15, 2019 Darn. Yeah tried throwing the wrangle inside the Solver but made no difference. Quote Link to comment Share on other sites More sharing options...
art3mis Posted January 15, 2019 Author Share Posted January 15, 2019 Ended up doing 2 separate solves and merging AFTER the simulation. Not ideal but in my case I can get away with it because my Layer0 clothing hugs the surface of my collision geo and doesn't really interact with the Layer1 clothing. Quote Link to comment Share on other sites More sharing options...
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