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I am following a tutorial for making a Christmas hat, and my 'hat' acts slightly weird. Actually it compresses very strangely while there is nothing really paranormal in my settings.

Does anybody know what causes the mesh to deform so weirdly?

Before the simulation:

enter image description here

After few seconds(2s) of simulation:

enter image description here

Simulation settings:

enter image description here

Tutorial: https://www.youtube.com/watch?v=xEp15H4AXfM

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  • $\begingroup$ did you already check for duplicate geometry where it hrribly deforms? see also blender.stackexchange.com/questions/42822/… $\endgroup$ – m.ardito Dec 11 '15 at 8:58
  • $\begingroup$ If this hat has a "thickness", eg. if you applied a solidify modifier for example, this behaviour might occur, especially if some of your geometry intersects when the simulation starts, however slightly. I would try to simplify the model, and animate the cloth of the low-resolution model, instead. After that you can perform whatever prettifying model operations you want :) $\endgroup$ – MaVCArt Dec 11 '15 at 9:13
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Since you dind't upload the .blend it is hard to tell what went wrong. I started with a circle extruded it and scaled the the tip before add some loop cuts.

Check the order of the modifiers

enter image description here

I also reduced the gravity and parented the hat to a sphere to see the deformation:

enter image description here

See the attached .blend for details and vertex groups

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    $\begingroup$ That certainly is a jolly result. Nothing is more seasonal than happy head coverings. $\endgroup$ – Jon Ericson Dec 29 '15 at 1:55

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