Hi! I have a VDB that I would like to grow "along" the direction of some curves. I'm also experimenting with morphing with a different VDB, where the transformation is driven by the curves (using VDB SDF morph so far, but I'm not necessarily attached to this workflow). So that the growth and / or morph happens in tendrils following the path of the curves - I hope this makes sense? Having made the basic morph work using this tutorial [youtu.be] I have been trying to use my curves as the transition / falloff / mask rather than some arbitrary noise. Things I have been looking at that seem relevant but can't figure out if I'm right / how to use them properly: volume rasterize curve, volume velocity from curve, paint SDF, etc...this is also just the morph, I have barely begun to look into how to do it for the growth sim.

Unable to attach any images / files as of right now but can later today if that would help. Any advice on what methods or workflows I should be looking at to achieve this would be much appreciated - I don't know if I'm even headed in the right direction. Thanks!

please attach the hip file
and a example of what kind of effect you want to achieve

you should be able to animate your mask or density attribute on the curve then rasterize into volume
I'd opt for Resample + Volume Rasterize attributes as it tends to be faster
then use that as your mask volume for the Morph