I'm making a pair of shorts and put a button on it. I applied the waist as a constrained group, the belt loops as a soft deco group and the button as a rigid deco group but the button is going all wonky. I've check for poke thoughs and that seems ok. Any suggetions? Here is a bofore shot. I'll post an after one.

here is a shot of the after. That green line is the button. Any sugesstions?

 

oh if it matters I use poser 8 sr3

I have seen that happening during simulation, but usually it clears up once the simulation is done. I had a similar issue, but I was able to fix it with some moving around. Unfortunately I don't know what I did to get there.

Have you experimented with some extremes? Moving the button a bit in to deliberately cause more pokethrough, or pull it out further from the model, just to see what happens during the simulation?

If the whole waistband is constrained, it's sometimes easier to simply make the beltloops and possibly even the button constrained as well.

Rigid group should be separated from other groups. It cannot be joined to them.

grappo, that is the finished simulation.  I've seen simulations that looked bad before too and when they finished they looked great. Unfortunatly this is not one of those times. I will try moving the button around.

shuy what do you mean?have the rigid group separate?

You should not select part of whole mesh. Button and pants should not have common verticles.

On the pict you see 2 meshes. This one on the left is correct - you can select rigid group. On the right you can see mesh, where rigid groups can cause problems.

Oh yeah. Shuy is absolutely correct. Make sure that the button is a separate mesh. It can all be exported as the same obj, but should not have common vertices like he says.