addOctTreeSceneNode

[etcaptor]

There are two methods addOctTreeSceneNode :

Code: Select all

virtual ISceneNode *  addOctTreeSceneNode (IAnimatedMesh *mesh, ISceneNode *parent=0, s32 id=-1, s32 minimalPolysPerNode=128)=0 

virtual ISceneNode *  addOctTreeSceneNode (IMesh *mesh, ISceneNode *parent=0, s32 id=-1, s32 minimalPolysPerNode=128)=0 

My question is - what is advantage of using the method with IAnimatedMesh besides generating for many SceneNodes from animated mesh?

In boot cases methods returns ISceneNode * pointer /not IAnimatedMeshSceneNode * pointer for first method/

How can I use advantage of using of IAnimatedMesh instead IMesh?
Some example? Thanks in advance and maybe this is post for beginners forum, but i'm not sure.

[Electron]

I haven't looked in the engine code yet (though now you've got me curious so I may) so I"m not positive here, but I think there's probably no difference. I don't believe an animated emsh can be an octree unless each keyframe frame is made into its own octree (tremendous memory aggg) which would probably not be practical. Rebuilding an octree in real time every frame is not possible. I don't think there is any way you can use an animated mesh. The fact that the engine allows you to pass one as a parameter is odd, however , so it's possibel I'm wrong.

[rincewind]

I'd guess it's because IAnimatedMesh does not inherit from IMesh, so with two functions it's possible to create an octtree from both IMesh and IAnimatedMesh.