Symbolic Posted March 24, 2008 Share Posted March 24, 2008 (edited) Hi, I have two groups of objects... Do you think it is healthy to solve one group with one RBD Solver and the other group with a second RBD Solver? So: Group "Chunks_B" has 12 objects in it... "Chunk_B_1... Chunk_B_12" Group "Chunks_C" has 15 objects in it... "Chunk_C_1... Chunk_C_15" Affectors: Chunks_B -> Chunks_B Chunks_C -> Chunks_C Chunks_B -> Chunks_C Chunks_C -> Chunks_B RBD_Solver_1 only for Chunks_C after that RBD_Solver_2 only for Chunks_B The reason for me trying to do that is... Some values in the RBD solver work nice for Chunks_C but they are not good for Chunks_B... things like propagation and penetration... So I want to have different Solver values for different groups... Is this healthy? Is it ok to keyframe "propagation" and "penetration" values in the solvers? I want the "penetration" to be 0 at the beginning... because I do not want my pieces that are touching each other to jitter and push each other... but after some point I need the "penetration" go to 1 or 2 so that objects do not go through each other... Sorry... it is complicated question as usual... but any ideas? thanks. Edited March 24, 2008 by Symbolic Quote Link to comment Share on other sites More sharing options...
Symbolic Posted March 29, 2008 Author Share Posted March 29, 2008 any ideas? Quote Link to comment Share on other sites More sharing options...
GallenWolf Posted April 3, 2008 Share Posted April 3, 2008 Symbolic, If you are going to use two rbd solvers working mutually together (I assume you have already set the merge dop to Mutual affection), you may want to increase the substeps at the Dop Network lever. It's called Time Step, and usually set to ch("timescale")/$FPS, you could try setting it to ch("timescale")/$FPS*0.5 for example. The multiplier at the end will give more resolution at the global level. About keyframing, the RBD Solver's parameters are by default set to "Use Default". If you change that to "Set Always", it should respect the keyframes. Note that I've not tried animating the solver parms before, so YMMV HTHs! Alvin Quote Link to comment Share on other sites More sharing options...
Symbolic Posted April 6, 2008 Author Share Posted April 6, 2008 I have to use two different RBD solvers on the same network... do I feed the network to one of them... and then the other (split) and then merge them with a merge DOP? Is this what you mean? Quote Link to comment Share on other sites More sharing options...
GallenWolf Posted April 7, 2008 Share Posted April 7, 2008 Yep! Just merge them with a Mutual type relationship. Quote Link to comment Share on other sites More sharing options...
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