i managed to export the obj with texture data and coordinates (the riptide plugin works fine). but sh3 seems not to find the textures...its still all black. i have the same in c4d when he didnt finds a texture - its all dark black. not even to see outlines its just deep black. i think sh3 has for interior files some kind of other hierachy...as the work with "outer" files comes without problems. but i also recognized that the plugin does not transport specific texture attributes, as lighting, etc. and i think the inner textures have a kind of self-illuminating attribute. but there is also another light-ressource, which i and also diving duck havent found yet.
ideas are still welcome.