CeeGee Posted April 28, 2009 Share Posted April 28, 2009 (edited) I have problem with RBD simulation, i have to make ground that fracuture and falling from center and spreading in all direction. I try to find solution but nothing work for my setup... In hip file you can see what is my idea with color.. thanks in advace ground.hipnc Edited April 28, 2009 by CeeGee Quote Link to comment Share on other sites More sharing options...
pclaes Posted April 28, 2009 Share Posted April 28, 2009 In terms of your color selection, you can promote(upgrade) your color attribute on a per piece basis to detail level, and then downgrade it back to primitive level. This isn't very fast though. have a look at the hip. This topic comes back all the time, so do a search here on the forums and you'll find quite a few fracture related threads. If your simulation doesn't need to be extremely accurate you can copy the pieces onto particles and do your simulation with particles. ground_02.hipnc Quote Link to comment Share on other sites More sharing options...
CeeGee Posted April 28, 2009 Author Share Posted April 28, 2009 (edited) Thanks Pclaes, i try with you setup, but i have a big problem putting that in DOP, a try with few setup that i find on forum but something is wrong in my setup or in my head Edited April 28, 2009 by CeeGee Quote Link to comment Share on other sites More sharing options...
Netvudu Posted April 28, 2009 Share Posted April 28, 2009 Darn "ForEach" SOP, it keeps on appearing more and more and I still don Quote Link to comment Share on other sites More sharing options...
CeeGee Posted April 28, 2009 Author Share Posted April 28, 2009 Any luck??? Quote Link to comment Share on other sites More sharing options...
stevenong Posted April 28, 2009 Share Posted April 28, 2009 I think this thread should help. You can group the objects and specify the group in the Gravity DOP. Cheers! steven Quote Link to comment Share on other sites More sharing options...
CeeGee Posted April 29, 2009 Author Share Posted April 29, 2009 Thanks stevenong. I saw that post and try with that... But didnt work... Here is the scene if you have a time to look... Thanks ground_03.hipnc Quote Link to comment Share on other sites More sharing options...
stevenong Posted April 29, 2009 Share Posted April 29, 2009 Hey, You were so so so close. You just have to check "Use Deforming Geometry" on the RBD Fractured Object because you need to tell DOPs to keep reading the geometry for changes and in your case, the "checked" attribute. I tracked it down by looking at each DOP Object's Geometry details and the "checked" attribute didn't change so I knew immediately what's wrong. Cheers! steven Quote Link to comment Share on other sites More sharing options...
CeeGee Posted April 29, 2009 Author Share Posted April 29, 2009 (edited) A turn on Deformin Geometry, and i can se that gometry get red in DOP, but gravity didint affect geometry that was red... ground_05.hipnc Edited April 29, 2009 by CeeGee Quote Link to comment Share on other sites More sharing options...
CeeGee Posted April 29, 2009 Author Share Posted April 29, 2009 I solved problem. Thanks to stevenong and pushpathadam. ground_rnd_v01.hip Quote Link to comment Share on other sites More sharing options...
CeeGee Posted April 30, 2009 Author Share Posted April 30, 2009 This is some test... bridge_v01.mov Quote Link to comment Share on other sites More sharing options...
borisb2 Posted April 30, 2009 Share Posted April 30, 2009 (edited) looks great ! How did you cut your geometry ? .. seems like your network is somewhat heavy on the calculation though. Since you already using the Cd-attribute to activate the RBDs, you can also query in DOP that color of each prim in runtime using if(prim($OBJID, 0, "Cd", 1)<1, 1, 0) That way you can fill your dynamics group maybe faster. I have attached an example where also the other (not active) pieces are taken into DOPS as a static object for friction at the edge collapsing_ground_by_colortransfer.hip cheers.. Edited April 30, 2009 by borisb2 Quote Link to comment Share on other sites More sharing options...
CeeGee Posted April 30, 2009 Author Share Posted April 30, 2009 (edited) Thanks borisb2, i will try your setup on my bridge... I break my model with RayFire tool in 3dstudio max.... Edited April 30, 2009 by CeeGee Quote Link to comment Share on other sites More sharing options...
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