I've been testing bidirectional interactions in the vellum solver, like:
- hair<->cloth
- grain<->cloth
- grain<->cloth
All of them work nicelly but I can't figure out the way to make grain interact with hair (even when I increase the pscale of the hair doesn't seem to be recognized as interaction by the grain particles).

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This is my geo-constrain setup:


And this is the DOP with the sim:


Here us the file:

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Thanks a lot!

Attachments:
test0001-0024.mp4 (330.1 KB)
question.PNG (65.4 KB)
question 2.PNG (40.3 KB)
GrainHairInteraction_v001.hipnc (594.4 KB)