Jump to content

pop grains following a deforming mesh

Recommended Posts



I would like to know if that approach is possible using PDB and the new grain solver:


1. Create a Granular solid from a VDB animated mesh and make all the grains move acording to its deformation and position.


2. Break some of the constrains so that some particles will no longer follow the VDB mesh.



Thank you!

Edited by pau22
Link to comment
Share on other sites

grains can be pretty unstable when they intersect with each other.  deforming would very likely lead to loads of particle intersections.  you'd probably have to adjust radii to avoid intersections prior to activation...

Link to comment
Share on other sites

Here is what I was thinking you could do in DOPs.


Use a popwrangle, popvop, or sopsolver to get the rest value (the animated position).

Then animate the "activation" any way you want in SOPs. When the particle is activated, dont use the rest anymore.


Thanks Ryan, that's awesome! it works really well.


You've made my day!

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

  • Create New...