lyansart 0 Posted November 21 hello guys, pretty sure it's a silly question but atm can't wrap my head around it. I have a rbd cache of a wall destruction. now, i would like to constraint other objects on it (window frame) but having it on another simulation. What It's happening atm is that my constraint stay in place and don't stay attached to the the different wall pieces when they are imported in the new sim as a Deforming static object. Any hints on how to make it work / what i am doing wrong? thanks! Share this post Link to post Share on other sites
anim 926 Posted November 21 (edited) use another rbdpacked object (for your animated pieces from previous sim) and set it to Animated Static instead of using Static Object you can also control this behavior using point attributes if you want to import all pieces using single rbdpacked object Edited November 21 by anim Share this post Link to post Share on other sites
lyansart 0 Posted November 28 On 11/21/2019 at 6:11 PM, anim said: use another rbdpacked object (for your animated pieces from previous sim) and set it to Animated Static instead of using Static Object you can also control this behavior using point attributes if you want to import all pieces using single rbdpacked object Hey Tomas, thanks for taking time to answer, Importing the object in DOP works fine, what doesnt work is updating the constraints by being attached to this moving object. They seem to be 'frozen' on the first frame object.. Share this post Link to post Share on other sites
anim 926 Posted November 29 my point was that by using deforming geometry the transform of the object is not updating, just the geometry, therefore the constraints, that are moved by object transform will not update unless you are attaching the constraints directly to object's points so either attach them to the points if your geometry is truly deforming, or use transforming (animated) rbds Share this post Link to post Share on other sites
wreath 3 Posted November 30 If you are using "glue" type constraints between a cached animated rbd object and an active rbd objects thats the problem, you can't use "Glue" try using hard or soft constraints with some basic dialing hard can act like glue good luck! Share this post Link to post Share on other sites
lyansart 0 Posted Tuesday at 11:20 AM On 1/12/2019 at 4:24 PM, anim said: glue should work too does it? It doesn't seem to keep it attached neither with glue or with a hard constraint.. Does anyone have had this issue? This my example: (Considering that where i have the simulated rubber toy i have indeed a cache - so i cannot simulate everything together) seems so easy and still I can't seem to make it work.. test_constraint_01.hipnc Share this post Link to post Share on other sites
wreath 3 Posted Tuesday at 02:09 PM Here I made the basic setup, I believe this is what you are after. Red wall simulated as "Layer 1" then sent to "Layer 2" sim as animated static object and active sphere objects are attached to it. Something important; Always set the constraints between "active" -" animated static objects" breakable otherwise solver will be confused and may cause erratic behaviour as it will be stuck between unmoveable animated objects and unbreakable constraints. Hope this helps Constraints.mov Animated_To_Active_Constraints_Yigit.hip Share this post Link to post Share on other sites