Vellum Strings Emission

Usually for this kind of sims, I was using the pop grain setup from the cgwiki.

https://www.tokeru.com/cgwiki/index.php?title=HoudiniDops#Grain_emitted_noodles

But he says it's deprecated because of Vellum. So I decided to translate the same setup into vellum. The setup is also using the resample sop and generating new constraints everytime time-step until the string stops growing. Not very straight forward with vellum, but it seems stable.

Scene setup and render in Solaris with KarmaXPU. Once you bake the USD stage, Karma runs fast and smooth.

HDRI and shader textures are from $HH variable, so all files are relative to Houdini install directory. Be sure to set the $JOB variable to your local drive.