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ejr32123

Cloth Inflation Problem [solved]

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Hi,

I have a simple cloth inflation setup. Using the sop solver I apply a force (targetP) in the in the direction of the normal. It works as expected. However, when ever I turn on fracturing, it seems to ignore the inflation force. Its weird because everything in the geometry spread sheet seems to be the same (when comparing fracture on vs off). Also, this setup works perfectly in houdini 16. It doesn't work in 16.5 and I can't figure out why. Any help would be appreciated.

Thanks in advance

cloth_test.hip

Edited by ejr32123

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that's strange ... it works here. I just enabled the fracturing option and it inflates and brakes as it should.

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10 minutes ago, merlino said:

that's strange ... it works here. I just enabled the fracturing option and it inflates and brakes as it should.

Wat? I am using Houdini 16.5.439. I wonder if it works in the latest version (unfortunately I don't have my personal pc atm to try it ). What version were you using?

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16.5.496

Just to be sure: it should inflate and then explode, nothing more, right? (for the fracturing I just lowered the threshold) 

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5 minutes ago, merlino said:

16.5.496

Just to be sure: it should inflate and then explode, nothing more, right? (for the fracturing I just lowered the threshold) 

My real scene (not the test one I uploaded) I have divided the geometry with fracturepart. So yes, it will inflate then explode. Howeverm, I am not concerned with exploding in this test scene. I am just trying to figure out why it will not inflate when fracture is enabled. 

Edited by ejr32123

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here is what my scene does with enable fracture. The targetP deformation is not applied to the simulation even the the correct data is in the geometry spreadsheet. The weird thing is the patch notes say this for an earlier patch, so it should work in my version: At least it seems similar to my problem : )

Fixed a problem in the finite element solver where the "Target Deformation" is not properly transferred to the simulated object in the case where fracturing is enabled and the vertex indices don't match. The improved code relies only on having the same numbering of primitive indices and the same vertex order within each primitive. 

CandidAridHyracotherium-size_restricted.

Edited by ejr32123

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Yep, the description is pretty similar to your situation. Maybe updating to the last release will solve the problem, anyway it's strange...

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I got it to work on the latest version. That sucks though because the project I have to use the other version : (

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