animating cloth over an expanding body on blender

Dev Advice 3D Modeling
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i have a character in blender, the animation consist on it expanding/growing a lot, i made it by applying several clothes physics proxies on it to reproduce soft surfaces and some jiggle (most of the body has) + shape keys and tweaks on internal pressure values, i want its clothes to squeeze it as it grows and then rip at a certain point, all of that with clothes physics on it for better effects, the problem is that blender’s cloth physics doesn’t allow such a complex process, and cloth on cloth interactions are extremely unstable and the results are way too bad, i want to avoid relying too much on shape keys because of the huge work load it will require + i want to animate more explosive results, EX: a shirt’s button popping and then suddenly opening (only relative to that button or the whole shirt), same for pants/ skirts buttons and some seams, how can i do it? complexity of the process is not really a problem but preferably to be reliable and be applicable on more scenarios, if not still give me your best shot

1 Answer

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my first thought would be to have invisible collision objects that you move around to make it look like the cloth and fat are interacting with each other

i have something like that so simulate hands/arms interaction but the problem is that the cloth physics for soft parts are 2 meshes, 1 on the breasts and the second one basically covers the entire lower body + belly + back (held together by a lot of weight painting on a pinned group) and adding another group of simulations to a collision object to keep it close to the soft parts of the body and still affect the actual cloth (that i want to make tight because loose clothing is no fun) will probably make everything blow up, blender included (my pc is not the problem in this case)

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