DirectX, Assimp model loader has mesh crash

Question

I'm working on a model loader coded by DirectX 11 and Assimp(VS C++ 2012). It can successfully load some model files now, but there is a new error just like the picture: http://i.imgur.com/1XLCqG9.png

I had used assimp viewer to check the model file and it didn't show me any error.

So I guess there has some problems on my codes. D:

I have tryed to load another models and found that this problem occured only when I loaded a model which has more then 50K vertices.

Here is my full codes and the model: https://dl.dropboxusercontent.com/u/90323076/mesh%20crash.rar

Can anyone helps me? Thanks a lot.

Answer 1

I figured out why there would be the error.

Because I used WORD to store the index data, so it overflowed when the indices got more then 65535.

Changing the WORD to UINT had solved the problem!