Opacity - Some objects are missing.

Ive created a 3dsmax material with a transparent png in the diffuse and opacity map slot. The transparency works when viewed in ogre but if you look through the transparent object, some objects are missing. I also tried it with an ogre material but with the same result.

In this image, the floor and 2 big boxes are invisible.
http://img143.imageshack.us/img143/6347 ... ncy7fu.jpg

I allways wondered about the weird behaviour of transparency in some games and now i have this problem too.

I'm not sure what is supposed to view in your screenshot

In any case disable "Depth write" and test with the Z-buffer options in your transparent material

thank you, disabling depth write solved the problem.