bonassus Posted July 25, 2018 Share Posted July 25, 2018 I learned that you can create a vdb from the camera using the vdb node, set to "From Camera". This shows you the camera frustrum as a bounding area. I want to turn this vdb into polygons. my failure to do so reveals my lack of vdb knowledge. The vdb From camera tab is set to fog volume. I gave it a name of "density" and used a vdb activate to give a value of 1,1,1. I tried to use a convertvdb node to convert to polygons, this didn't work. i'm misunderstanding something here. help would be appreciated. Quote Link to comment Share on other sites More sharing options...
bonsak Posted July 25, 2018 Share Posted July 25, 2018 Remember to set Position Tab -> Size on your VDB Activate node to a value bigger than 0,0,0. Try 200,200,200 for example. -b Quote Link to comment Share on other sites More sharing options...
bonassus Posted July 25, 2018 Author Share Posted July 25, 2018 (edited) 11 minutes ago, bonsak said: Remember to set Position Tab -> Size on your VDB Activate node to a value bigger than 0,0,0. Try 200,200,200 for example. -b Thanks for that. I at least now have density values in vdb activate. however convertvdb does not produce polygons. see attached image. Edited July 25, 2018 by bonassus Quote Link to comment Share on other sites More sharing options...
woodenduck Posted July 25, 2018 Share Posted July 25, 2018 set the iso value on the vdb convert to 0.0001 1 Quote Link to comment Share on other sites More sharing options...
bonassus Posted July 25, 2018 Author Share Posted July 25, 2018 Ok it works. thanks for the help. Quote Link to comment Share on other sites More sharing options...
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