tfreitag Posted October 11, 2017 Share Posted October 11, 2017 hey, here I have file where I try to advecting with vdbadvect inside sopsolver. the points going crazy. if i raiseing the substep it getting better, but its way to slow...because i will advecting 90mio points. Maybe there some bad velocities or the resize container? hipfile: https://we.tl/8OLaIq8Upx any solution would be nice. thanks in advance. tom Quote Link to comment Share on other sites More sharing options...
Atom Posted October 11, 2017 Share Posted October 11, 2017 We Transfer does not work, it just asks me a bunch of questions. Can you just post the HIP on the forum? Quote Link to comment Share on other sites More sharing options...
tfreitag Posted October 11, 2017 Author Share Posted October 11, 2017 hey atom, here is the file attached advectpoints.rar Quote Link to comment Share on other sites More sharing options...
Atom Posted October 11, 2017 Share Posted October 11, 2017 The problem seems to be that you are not keeping both sides equal. When you convertvdb for one side, make sure you match the settings on the other (i.e. Convert Fog to SDF). Also, turn off that vdbresample unless you plan on resampling the other side too. It worked fine for me after that, no more exploding velocity. 2 Quote Link to comment Share on other sites More sharing options...
tfreitag Posted October 12, 2017 Author Share Posted October 12, 2017 hey atom, thanks for you advice with converting both sides(density and vel to vdb) this helps. the smokesim is very lowres, without resampling i see the voxelgrid on my cloud. Quote Link to comment Share on other sites More sharing options...
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