I'm trying to model a cotton garment by simulating it's draping process. I'm having issues only when I enable self-collision of the cloth. Without self-collision , there are no issues but I do need self-collision for later stages of work and can't proceed without enabling that. I'm using 2.73, and I didn't modify any settings; that is , I use the default collision settings and for everything else too. Below are screenshots of the issue.

Rest state:

enter image description here

End result, without collision, close to what I want; but as seen, cloth is penetrating itself:

enter image description here

When I enable self-collision, this happens right from the 1st frame itself:

enter image description here

The end result is also similarly messed up.

These are my cloth settings:
enter image description here

I believe that the simulation is finding the cloth particles close together and hence repelling them from each other, given the messed up result. I set the "distance" value in the collision settings to 0.5 and 1 too, but both of them gave the same result.. Any idea why this could be happening?

  • $\begingroup$ In your screenshot Blender states, that the cache is outdated. The first thing i'd try is to clear the cache (e.g. set frame to 1). $\endgroup$ – user2859 Jan 23 '15 at 17:29
  • $\begingroup$ Have you tried bringing down the self collision Distance value? $\endgroup$ – user1853 Jan 24 '15 at 1:35
  • $\begingroup$ Yes, I tried 0.5 as well..same thing.. $\endgroup$ – sanjeev mk Jan 24 '15 at 4:53
  • $\begingroup$ Apply rotation and scale. Just got same problem. $\endgroup$ – user11306 Jan 29 '15 at 23:10
  • $\begingroup$ @PiotrJędrzejko Didn't get you exactly...rotate and scale what? $\endgroup$ – sanjeev mk Jan 30 '15 at 8:36

A POSSIBLE WORK AROUND (that at least worked for me):

Scale up everything, then apply the transformation (CTRL+A > all transforms)

Sometimes cloth simulations in Blender results in error with too small meshes.

Hope this may help.



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