william-or Posted May 28, 2021 Share Posted May 28, 2021 I'm having some issues with the bullet solver when colliding with a static object. No matter how many constraint iterations and substeps I set, the collision between the first chain link (an animated static object) and the second (rbdpackedobject solved by a bullet solver) is going to make the rbd flicker and jump around. Furthermore, if I decrease constraint iter. to like 3 the simulation works better, even though not good enough. I don't understand what I'm doing wrong, any help is appreciated. bullet_error.mp4 Quote Link to comment Share on other sites More sharing options...
Alain2131 Posted May 29, 2021 Share Posted May 29, 2021 It's hard to say what's wrong with your setup, well, without it. Here's a similar setup, using the SOP RBD Solver. With 10 iterations, there's some jitter (nothing as much as yours). 25 is pretty good, and 50 is very good, enough for the Sleeping to kick in. The low FPS is caused by the gif itself. simpleChain_sim_anim.hipnc Quote Link to comment Share on other sites More sharing options...
william-or Posted May 29, 2021 Author Share Posted May 29, 2021 I solved it using an rbdpackedobject as a "static animated object". Somehow using this solved all the jitter problems and the sim is much faster. thanks! Quote Link to comment Share on other sites More sharing options...
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