Capricorne wrote:What I understand is you can not have a cube (one object) with one face Transparent and other mapped with the same texture because you need a material with an opacity <1 (the famous 0.94). This face need to be extracted from cube to have a second object with specific material !! Now that the texture for this Face , can be the same général texture or an other one . In this case ONE material per object is the same than one texture per object.
But i agree there was always an ambiguity between 'Materials', and 'Textures'.
Merging a lot of Objects in one big file should bot be a problem, as long you don't combine them in one object.
For the particular AirportO.cx I can not imagine that all sub-objects will also need to have the same Material and texture
Wrong. As I explained before your cube can have 1 material with a tga texture. The tga texture can have a transparent section with alpha channel. And other section with different alpha.