Vellum Pressure unknown forces

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traileverse
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Hi, I'm trying to control vellum pressure constraint, I want to have an object stay in place and just inflate. However, the object just starts to spin; I've tried smooth iterations as the docs said but that hasn't helped. Any way how I can just have the object stay in place and inflate without unbalanced spinning without pinning it? (file attached)

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balloon_type_effect_forum.hiplc (698.6 KB)

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traileverse
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Is it better to start with a puffed-up version of the model so vellum can store volume for pressure solve, then deflate and reinflate for the effect you want, or is there a workflow to start with a flat model and use pressure scale and rest length to inflate model and have good volume?
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Yader
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You could try increasing the mass of your cloth together with Velocity Damping on the Solver/Forces Tab could help counteract the spinning.
The easiest would be to just make some really soft pins with high mass value:
Edited by Yader - Nov. 26, 2022 05:25:51

Attachments:
Inkedhoudini_LloXNrzXDl.jpg (210.1 KB)
balloon_type_effect_forum_yader.hiplc (703.1 KB)

https://behance.net/derya [behance.net]
traileverse
Member
205 posts
Joined: Nov. 2015
Offline
Yader
You could try increasing the mass of your cloth together with Velocity Damping on the Solver/Forces Tab could help counteract the spinning.
The easiest would be to just make some really soft pins with high mass value:
Thanks @yader, this was helpful and gave me a few ideas to play with.
hou.f*ckatdskmaya().forever()
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