charly Posted April 25, 2018 Share Posted April 25, 2018 (edited) Hi, I'm trying to pass the color from polygon to VDB, transform the VDB then apply the color back to polygon but I don't know how to do. I tryed to use "VDB advect points" but I can't figure out how it's working and if it's the right solution. Charles VDB_color_uv.hipnc Edited April 25, 2018 by charly Quote Link to comment Share on other sites More sharing options...
Tanto Posted April 26, 2018 Share Posted April 26, 2018 Hello, You could use a VDB from polygons, add Cd as a surface attributes, then in an Attribute VOP use Volume Sample with P as position. Quote Link to comment Share on other sites More sharing options...
charly Posted April 27, 2018 Author Share Posted April 27, 2018 Hi Tanto, Thanks for your answer. So I did what you said and it's working on the first frame. Now, the problem comes from the advection I guess. The colors seams to folow the turbulence but not perfectly. Anyone has an idea ? Quote Link to comment Share on other sites More sharing options...
ollynash Posted December 9, 2021 Share Posted December 9, 2021 Hi, I know this topic is a few years old and I'm not sure about the advection aspect of things but... I found a very simple way to transfer Cd when using vdbfrompolygons>convertVDB and that's to connect the from color node into 2nd port of convertVDB & inside convertVDB check transfer attributes ON. As explained by this guy: Quote Link to comment Share on other sites More sharing options...
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