24th July 2013

I have had a lot of trouble with UDK and importing my meshes from 3D studio max into the UDK platform. I created my mesh and textured it in 3D studio max. I then exported the mesh as a .FBX file. I opened UDK and went to import the mesh into my assets browser, however, every time I went to import the file, UDK crashed and I had to force quite the program. I tried a lot of things to get the file right. Firstly I selected all my vertices and welded them, just to make sure my mesh was contiguous. I then added a normal modifier and unified normals to correct any vertex alignment issues. I reset the xform and then re-exported my file. UDK still crashed. I then removed all my textures and applied a standard material to my mesh, exported the file and imported it into UDK. Finally UDK did not crash and my model was loaded into my assets. I will need to figure out why the texture was causing so many problems as this could prove to be a serious issue as it would severely slow down the whole modeling process.

Once I had imported my mesh into UDK I then was able to place it in a world to see what the model looked like. Here a second issue arose and that was to do with scale. When I added the mesh into the world it was quite small and not to scale relative to the user. I tried many different unit setups in 3D studio max to rectify this. The one that seems to work now is to customize my unit set up to 1uu(unreal unit) = 2.56 cm. Then in my system set up, set 1 unit as 2.56. Then when I import my model to UDK the model appears to scale.