COLLADA (.dae) does support some physics, right, but only the very basics. For example soft body, fluid or character controllers are not yet part of COLLADA. I have been reading the COLLADA 1.5 specs more than once during the last weeks.
I have been tossing in .dae because I have been expecting this very discussion. Here is my point of view on .dae:
- pro: .dae is a standard. Ok, a new and emerging standard, but nevertheless a standard.
- contra: .dae covers only basic physics. We want a modern physics engine integrated in Panda3D which supports advanced features like e.g. softbody. Extending COLLADA by us is not possible, and waiting until the Cronos group has added those features to COLLADA (might be years) will take too long.