Hi people,

I've done a pyro sim, which I cached to openVDB. Then I've duplicated this cache using a copy node and some geometry. Now I've run into a problem for which I have no answer. In the VDB cache I've deleted the fields which I have no use for ( like heat, velocity, fuel… ), but, when I look at the copy node in the spreadsheet I see that Houdini does not combine the remaining fields. So I have a density and temperature field for every copy.

Is there a way to combine these fields into a single parameter?

EDIT: The way forward is to enable the “Pack Geometry Before Copying” in the “Stamp” tab and all will be well.