I have some points scattered on grid and sphere copied to those points, next I convert it to VDB.

I'm using VDB Advect to grow them using VDB Analysis output as speed input. What I want to do is make this blobs grow with different speed and some of them even shrink.

I think I should transfer attribute from points to spheres to VDB to use it as speed for growth… and the last point (spheres -> VDB attribute copy) is where I stuck. Any ideas?