Hello alltogether,I was able to generate a mesh scenery with DHM-Data, but in between I got also some orthofotos of the same area. How can I put this two things together? Just make to different sets of BGL's and put them in the right order in the library? Or in some sort of way, which I didn't found out after studying the SDK-Documents, mix both data together in one set of BGL?Can anybody give me advice please?Christoph

Treat them as seperate projects. You can put them in the same scenery folder, that won't matter as you won't be using excludes in either of them. Set up seperate inf files, seperate resampling, seperate bgls...everything.Bob Bernstein