Baking out RBD Object on multiple machines

[Jordan Walsh]

Im trying to cache out a moving collision object (deforming character) to a .sim file sequence on multiple machines on our farm using a dop rop. The problem is that because im pointing my dop rop to the RBD object in Dynamics context when a machine tries to cook frame 10 it does all the lead up frames to get to frame 10 (wich makes sense because im in dops!)

I tried saving out n SDF from sops but that didnt seem to load up correctly in the RBD object.

What is the proper workflow to create a collision volume from sops that works in dops?

[Solitude]

1: Create sdf in sops using the isooffset node. Preview this with isosurface first to make sure it'll be accurate enough, but set to sdf before you save to disk.

2: Save to disk with a rop geometry -- preferrably getting your farm to do this per frame for you.

3: Load with file node

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4: In dops, setup the static geometry node to look at the original geometry in the SOP path

5: On that same node, set the Volume Mode to Volume Sample

6: Set the proxy volume to point to your file node.

7: Show Collision Guide Geometry to make sure it's working right -- turn off afterwards because it's slow.

[Jordan Walsh]

Thanks for the workflow tip Ian, that works out great!

[Solitude]

No Prob. It's pretty much how I always make collision volumes now.

[kleer001]

I tried this and the sim exploded. I dug around a little bit and there was an easy fix. I just had to offset my emitted particles a teeny tiny bit. Turns out there was a volume offset somewhere in my rig. Whoops.