gpapaioa Posted September 25, 2015 Share Posted September 25, 2015 Hello, I want to find a way to detect when smoke with geometry collision happens, on the surface of the geometry and trigger some events. Any help/ideas/node suggestions are highly appreciated Quote Link to comment Share on other sites More sharing options...
ryew Posted September 25, 2015 Share Posted September 25, 2015 A couple of ideas for you (no idea how efficient either of these would be, but here you go): 1) Advect particles through your smoke simulation and detect the particle proximity/collision to the geometry 2) Covert your smoke volume into a VDB mesh and detect when that mesh intersects with your collision geometry Quote Link to comment Share on other sites More sharing options...
fathom Posted September 25, 2015 Share Posted September 25, 2015 or, you can scatter points on your collision geo and detect if they're in your smoke volume. Quote Link to comment Share on other sites More sharing options...
gpapaioa Posted September 25, 2015 Author Share Posted September 25, 2015 Thank you, I will experiment with all of them Quote Link to comment Share on other sites More sharing options...
gpapaioa Posted September 28, 2015 Author Share Posted September 28, 2015 For anyone interested on the subject... I managed to do an efficient solution using the Attribute From Volume node and a SOP Solver in DOPS. Thanx fathom for the point scatter idea Quote Link to comment Share on other sites More sharing options...
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