Irrlicht Engine

Hello!

I have some strange thing that happens when I use
irr::scene::ISceneManager::addOctreeSceneNode to create my scene node.

When I move my camera around, this node sometimes just dissappears.
This is shown on the related video:
http://www.youtube.com/watch?v=EP_fUS54Vd4

How can this be ...

Thank you for your reply!
After some time studying Irrlicht and OpenGL, I've written S3DVertexNTCoords, which supports up to 8 texture coordinates for Irrlicht 1.7.1, and it works! (But I think it useless without corresponding shader.)
So, if someone intrested, I can post it here.

Hi!

Is this possible in Irrlicht to texture one custom mesh with different texture layers, so each vertex has different texture coordinates for each layer? Can it be done on high-level with Irrlicht functions or I should use shaders?

Example:
http://img823.imageshack.us/img823/3669/descriptions ...