octree from meshes in .irr files

[floppyfreak]

how can use addOctTreeSceneNode for meshes being part of an .irr file.

i tried

// IMeshCache* mMeshCache=irrSceneMgr->getMeshCache();
// int NumMeshes=mMeshCache->getMeshCount();
// scene::ISceneNode* node = 0;
// for (int i=0;i<NumMeshes;i++){
// IAnimatedMesh*MyMesh=mMeshCache->getMeshByIndex(i);
// node = irrSceneMgr->addOctTreeSceneNode(MyMesh, 0, -1, 128);
// }

now the mesh gets reloaded, correctly with the octree, but i have two copies. the octree copy seems to be much smaller (maybe because of scaling in blender)

this didn' take the first copy (originating from the irr- file) away.
// mMeshCache->removeMesh(MyMesh);


is createOctTreeTriangleSelector used for this?

[limvot]

is createOctTreeTriangleSelector used for this?

OctTreeTriangleSelector is used for slecting triangles in a OctTree, mainly for collision detection.
For the secound part though, i can't help you. I'm a noob too.