Daz Garments flying away

[jonathanlivingston]

I exported all the objects correctly from DAZ, but when I start the simulation in MD, this is what happens:

View attachment Registrazione 2024-05-20 182729.mp4
















It seems to me that it happens with garments that are made up of multiple parts. Here MD seems to be bothered by the bra strap and the two cups.
This is the bra I have used:

https://f95zone.to/threads/x-fashion-lightweight-lingerie-set-g8f-g8-1f.97269/

Any solutions?

Thanks

JL78

 

[osanaiko]

It seems to me that it happens with garments that are made up of multiple parts.

That's exactly right. MD does a physical simulation, Daz does not*.

In MD, the clothing items fall away along the "seams" because the mesh vertexes of the different parts do not actually have edges connecting them. The parts then separate from each other as the forces of gravity, edge tension and internal "pushback" from the figure surface are applied in the simulation.

Daz clothing items can "look okay" when placed on a figure even when the parts are not "connected" to each other because the position is maintained based on the relative offset between the underlying figure rigging and the vertexes of the object parts. (* Dforce does do a "physical" simulation, but I would expect the same result as you see in MD. That's actually the main difference between older clothing and the stuff that is named "Dforce <whatever>" - the creator made sure the seams are linked with edges, and also that there is no pre-existing self interpenetration when the item applied in "A-pose".)

If you wanted to make changes and pull them back into Daz, it's difficult to fix simply because you can't modify the mesh interconnections and still successfully reimport to Daz as a morph.

Regardless of the software, you can't change the mesh net without breaking the UV maps, which means existing object material skins will not work (at least until you re-do the uv maps). When I was last noodling around with 3d stuff, I did not find an easy way to "repair" the uv and still retain the original material layout. That might have just been my skill issue, and/or there might be a better way now.

However if you plan to use the clothing item outside of daz i.e. in blender, or are specifically trying to modify the design, then you'll need to redo the uv/materials anyway.

 

[jonathanlivingston]

Thank you so much for your interesting answer.
Next time I want to "play" with a garment in MD then re import its morph in DAZ, I will chose one with no mesh interconnections

 

[Quadruple-Q]

Osanaiko pretty much hit the mark, however there is another option. Note that it will always be better to use clothing that is already good to go, but if that's not an option you can try the following:

A quick and dirty solution would be to connect the separate parts using tacks in MD. The tacks, when placed correctly, will sort of hold the separate parts together during the simulation. It won't always work, or turn out great, but it's worked for me in a few situations.