i use blender myself, collada 1.4
for making a dae:
[Embed(source="urURLtoimage.jpg")]
private var chuckImage : Class;
[Embed(source="ur.dae",mimeType="application/octet-stream")]
private var Ag:Class;
private var material:BitmapMaterial;
private var model2:ObjectContainer3D;
material = new BitmapMaterial(Cast.bitmap(Charmap));
model2 = Collada.parse(Ag,{materials:{whatever name they have in
libray:material,example:if u need more}});
scene.addChild(model2);
for 3ds is almost the same stuff
private var modelinloader:Object3DLoader;
modelinloader = new Object3DLoader(Max3DS.load
("model.3ds",{ material:material}));
scene.addChild(modelinloader);
the .obj dont remember, but is almos the same, anyway theres a lot of
post whit this info and examples, u wont get lost.