An X file problem

[Yusaku]

I create a terrain (200 x 200 units) in 3DMax and exported to an X file. When I loaded it to my game, I found the terrain sometimes disappeared.

In CSceneManager.cpp, I found the terrain(or call sceneNode) was culled and it's because Box attribute (core::aabbox3df) is not set - it always return (0,0,0) as my terrain bounding box.

Did I use X file in a wrong way?

[Yusaku]

The problem is sloved - it's because I enabled "include animation" when exporting x file.

When the program performed "updateBoundingBoxFromAnimation", it used empty matrixes for bounding box, so I got (0,0,0) and (0,0,0) for min and max bounding box.