sanostol Posted November 22, 2013 Share Posted November 22, 2013 is there a fast and efficient way to convert vel.x, vel.y, vel.z into a single vdb vector field If I use vdb convert i get 3 individual fields stored in vdb, and as the vectors have different component values, the vdbs have different dimensions and transforms martin Quote Link to comment Share on other sites More sharing options...
edward Posted November 23, 2013 Share Posted November 23, 2013 http://www.sidefx.com/docs/houdini13.0/nodes/sop/vdbvectormerge Quote Link to comment Share on other sites More sharing options...
sanostol Posted November 23, 2013 Author Share Posted November 23, 2013 quote from the help on vdbvectormerge : "Each of the input VDBs must have the same resolution and transform." Quote Link to comment Share on other sites More sharing options...
edward Posted November 24, 2013 Share Posted November 24, 2013 If they are from the same field, why would they have different resolution/transforms? Quote Link to comment Share on other sites More sharing options...
magneto Posted November 24, 2013 Share Posted November 24, 2013 SESI servers seem to be down Quote Link to comment Share on other sites More sharing options...
sanostol Posted November 25, 2013 Author Share Posted November 25, 2013 hi edward, I'm importing them from a smoke sim, and they are split in three fields with same dimensions and transforms, but when I convert them to vdb they the get different sizes and transforms. probably I'm missing something here Quote Link to comment Share on other sites More sharing options...
anim Posted November 25, 2013 Share Posted November 25, 2013 the chance is that the original velocity volumes are of different dimensions as well, just middle click prior to Convert VDB to see the dimensions this may be caused by the fact that the default velocity sampling is set to Faces so go to your smoke or pyro object and change Initial Data/Velocity Sampling to Center and you should get the same dimensions for all 3 vel components 2 Quote Link to comment Share on other sites More sharing options...
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