Strange Rendering errors.

Hello.

I've made a testing scene wich will be, in the future a city. It's compromised of a number of buildings wich consist of diffirent parts. The problem i'm having is this:

If i DON'T join every object together and use the Ogre Viewport to look at them, they get scattered around the world. I read that using the 'Reset XForm' tool works around this, i cannot however use it because it messes up alot of my buildings (roofs go invisible, etc).

If i join all the objects together into a single mesh i get ALOT of VERY weird rendering errors. Polygons are being stretched and drawn from diffirent parts of the roofs, etc.

If i export the whole mesh (all objects joined together) into .obj first, then import it back into max, it works OK, but the buildings have some errors wich come from .obj exporting.

I can attach any images you'd like and even upload the scene if it's necessary. Thanks!

Seems you are using an imported mesh, if that is the case, then you will need to manually fix the mesh, see the tutorial 2 - part 1 for pointers on working with imported objects, in special you will see there that because of the difference in how matrices are handled by modeler applications, after a reset xform is applied, some polygons will be flipped and you need to flip them again

Also make sure you dont have any geometry modifiers in your objects, so collpase the stack if is not already

Thanks Lioric, that did it!

Great job on this, it's fantastic