uprezzing howto..

[super gnu]

Make sure secondary forces like gravity are added to your higher res sim as well. That way if any particle loses track of its intended parent, it'll still keep falling. Add the same colliders and such too.

thanks for the reply, however if i start adding all the same forces and colliders, surely ill start to run into the same overheads that limited the particle count in the first  case ( ram and calculation speed) 

i expect the simplest way to do a foolproof "uprez"  will be simply to have a cluster of grains as the instanced geometry for the majority of the instanced particles. 



if its not already featured somewhere ive not seen, it would be of great benefit if you could include some kind of user-friendly simulation partitioning, or dedicated uprezzing tool.. 

im imagining an operator which overlays a 3d grid onto your lowres "presim"  with l x w x h partition numbers..  (particles which leave grid would be ignored i guess) 

   some kind of smart "overlap" to pass forces between partitions, and  avoid major errors, 

then the option to process one chunk at a time out to baked prt/alembic/vrmesh/tycache files.    you then increase detail level to whatever you want and hit go.  

it would allow "unlimited"   size sims to be calculated, at the cost of some inaccuracy  ..    

i cant for the life of me figure out how this could actually work, but i believe houdini can do similar...