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Servants Dress for dForce

Doc AcmeDoc Acme Posts: 1,153
in The Commons


I've been trying to get Dorthea:
https://www.daz3d.com/dorothea-for-edie-8-hd-add-on

... to do a fall wearing the dForce Servants dress.
https://www.daz3d.com/dforce-servant-dress-for-genesis-8-females

All seems well & then BOOM. It 'splodes consistantly at the same frame, yet the previous frame appears more or less fine except around the ankles perhaps, but no real hint.

Before I finally figured out how to do the equivelent in DS, I exported an obj out so I could disect the dress in Lightwave's Modeler. So the surface Dress02 is actually the collar.  Why that couldn't be named Collar, etc. to begin with is beyond me.  But now I know what's getting adjusted on a per surface basis for the dynamics.

I'm ready to experiment with those settings, but not sure where/how to start, as in I'm still not really sure what's not getting along or rather why. Tried the same pose & animation on a less complex dress w/o issue.

After some more runs, and seeing as it's only the Dress & Char involved, & that the Char is set as Static Object, the dress is the only item w/ any sort of Sim settings that can be adjusted.

Is there a technique to diagnose this sort of thing where multiple layers and surface Sim settings are involved?

If I turn the Vis OFF for the Char, the Sim completes but but not particularly well.  Leg just pokes thru rather than draping, etc. so need to have Char Visible obviously. But, simply turning Vis ON & running the Sim again, it explodes at the same point.

So how do I start to track this down? Any clues in these images?

Thanks.

 

Comments

  • Richard HaseltineRichard Haseltine Posts: 108,920

    Explosions  generally indicate that the energy in the springs (the edges in the mesh) can't diffuse away - because the mesh is trapped in some way (which seems unlikely here), or because there isn't time (especially with dramatic moves). Increasing the number of sub-frames and iterations per sub-frame often helps.

  • Doc AcmeDoc Acme Posts: 1,153

    Thanks Richard. Will give that a shot tonight.

    Where'd my attachments go?

     

     

  • Doc AcmeDoc Acme Posts: 1,153

    Poof 'n there they are...

     

  • SevrinSevrin Posts: 6,313

    I'm seeing some poking through of the apron and weirdness at the shins before you simulate.  Need to get that squared away, or there's sure to be trouble.  To be honest, I think you're stretching it a little further than it's meant to go.

  • Doc AcmeDoc Acme Posts: 1,153

    And the thumbnails are gone again. Apparently you did see them at some point.

    The poke through is one of the issues I wasn't  sure how to deal with.  The Apron & Dress are the same item, just separated by surfaces with their sim controls.  Figure & dress start in the A pose.

     

  • Richard HaseltineRichard Haseltine Posts: 108,920

    You can opt for the best option for collision detection - I'd meant to add that to the list of things to try in my first reply.

  • Doc AcmeDoc Acme Posts: 1,153

    Already had that at Best.  Haven't tried increasing the iterations, etc. yet.

  • Matt_CastleMatt_Castle Posts: 3,052

    My experience with dForce is another cause of explosions is trying to stretch the mesh too dramatically. For a pose like this, you need to be sure that the mesh isn't catching and can slide up the legs. So check the initial fit with smoothing off. (I'm sure that the simulation doesn't fully account for the smoothed shape in this regard). You might also have some luck with turning down friction.

    If you're prepared for it to be more elastic, bringing down the stretch stiffness may also avoid explosions, but it's not going to provide the most realistic results.

    However, one way or another, you're expecting quite a lot here. In that dress, if one really wanted to pull that pose, they'd probably have to hitch it up first rather than just doing the splits and hoping it'd slide up.

  • Doc AcmeDoc Acme Posts: 1,153

    Thanks for those tips Matt_

    Smoothing OFF. Will try that next.

    Others have mentioned the degree of stretch.  At the moment, the Pose key is at Frm 24.  Is the problem the degree of movement or the rate it happens?  In other words, if I set that key at Frm 75, would that make a difference?

     

  • felisfelis Posts: 6,024

    That might help.

    But maybe also lower the friction (of the skirt) sp it more easily can slide up her legs. Your pose seems to be stretching the skirt more than it would be possible with a real skirt.

  • Doc AcmeDoc Acme Posts: 1,153

    Hey Gang,

    Followed a number of suggestions which got me to a point that I can now experiment & tweek.  Not 100% but not tto bad.  If I can get meshgrabber installed now ...

     

    FallingServantSuccessfulish.png
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