In the last homework project for my Blender class, I had to make a balloon bounce across a ceiling as a soft body driven by wind. I fiddled with the constraints but it always crumpled on impact with the ceiling. Adjusting the constraints so that it retained its shape resulted in it not reacting to the wind. Why is this and how do I prevent it?
With Blender 2.66 or later, you can use a combination of rigid body physics and softbody on the same object. This should help you achieve the effect you want.
Also, increase the
goal value and
goal stiffness in softbody settings will help you retain the shape of a mesh.
You could also use the Bending and Push values in the Physics > Softbody > Softbody Edges panel.
Probably slower and unnecessary in this case, but I thought I would mention it.
Here is a nice video with examples of the settings.
in my experience also enabling "stiff quads" helps keep things in shape as well.