R – Papervision: MovieMaterial on a Collada object

If you're using 3dsMax you'll need to get a plugin to export the collada file. The default export doesn't work properly. If you're using 3dsMax 2009, you'll need a special version of the plugin.

I believe that this is it: http://www.flashbookmarks.com/pv3dchat/ColladaMax2009.zip

Once you know that your dae file is correct, you'll need to build a MaterialsList object with each of the materials that your 3D file will use. It's a bit of work but after you've done that everything should be good. Make sure the name of your materials in the MateriasList are the same as they are in your 3d program. They'll be mapped to the 3d object by their name.

One way is by placing the models childnodes inside their own containers.

var target:DisplayObject3D = model.getChildByName("someNode", true);
target.useOwnContainer = true;
target.alpha = 0.5;