Can someone please point me to a tutorial or explanation as to what the different scenery upgrades are and how they interoperate with each other? How can you tell if buying several scenery upgrades won't cause interference problems?Appreciate any assistanceCheers,Blaster

As I see it, mesh is the elevation data for a given point on the ground and land class is the texture that gets drawn at that elevation point, some of which can be photo-real. The term scenery seems to be used quite broadly, but generally refers to a combination of mesh, land class and/or ground objects that covers a particular geographic area (eg. Southern California, Honolulu, etc).The best way to tell whether scenery payware upgrades will conflict is to visit their support forum before purchasing and search for such issues.Gary

Recommend reading the "beginners guide to scenery design" in the scenery desing forum. It gives a good overview of the scenery system. For more, Adam Szofram from the ACES design team has posted a white paper on fsinsider.com with all the details of the scenery system:http://fsinsider.com/Community/Developers-...t+Simulator.htmscott s..