When i export a simple cube that has one texture there is a problem. When I export it as a .obj file, then in other 3d programms it appears completely white. And when I export that cube as a .fbx file, then I have a texture in it, but the UV cords are not correct. ( It always remains in the original "fit to object" uvm mapping, instead of lets say 20% U and 20% V ) Of course the bmp file is in the same folder as the fbx and obj files are. Very strange: When i make the excat same cube in blender, export it to obj , then it works fine. and when i copy the .mtl file to the cinema4d .mtl file and overwrite it, then it also works with the cinema 4d .obj file-. So it seems that cinema4d does not correctly can write the .mtl file. but i still wanna have it in fbx, and there I have to UVM problem.