Hi folks - sorry for the delay in getting to this thread...
Robin - great advice re: WED and sourcing Orthophotos!
Hi Buzzard - There are a few tutorials on the Scenery Forum of X-Plane regarding bringing in and converting GeoTIFF images to specific areas - the best one being from Chris K, found here: http://forums.x-plane.org/index.php?/fo ... o-scenery/
It's really important to remember that the images must be in a Power-of-Two format (i.e. 2048 x 1024 or 512 x 1024, but the bigger the number the higher the resolution - and the size!).
I use this technique when making localised high-res scenery under airports using X-Plane’s free World Editor, WED (now at version 1.6 and XP11 compatible). The GeoTIFFs automatically line up on the correct latitudes and longitudes, and are then converted over to PNG and finally DDS, if needs be. These final images are vastly smaller than the original GeoTIFFS (which can be now deleted from the scenery file) - saving on size and CPU/GPU reliant screen redraws, but still give virtually the same resolution and effect.
However, when it comes to covering larger areas of countryside, I rely on Ortho4XP to create my photorealistic landscapes. The results do look brilliant, though - especially when combined with recent OSM data, and AlpilotX's NZ Pro overlay
(http://www.alpilotx.net/downloads/x-pla ... aland-pro/
When it comes to sourcing OrthoPhotos, Robin's absolutely correct - there aren't many sources for free-to-distribute imagery. Google and Bing are copyrighted, as are the majority of sites. For personal use, this isn't a problem - which is why Ortho4XP has the option to source from these and many other databases. However if you wanted to distribute your work the best bet is, of course, LINZ - which is free to use.
If you've installed the Python scripts and Ortho4XP correctly, you'll need to open the file marked "Carnet_d_adresses.py" with a text editor and add a LINZ "key" to the right area. Creating an account with LINZ will provide you with one - just copy and paste the key into the correct area (it will say "key=xxxxxxxxxx" - you'll see it clearly marked out under the "New Zealand" section, so place your alphanumeric code after the equals sign within the inverted commas). Save the updated script and restart Ortho4XP. Selecting LINZ will now give you images, rather than white squares...
Another issue you may face is the quality of the imagery. Yes, it's rather hit-and-miss, and you've normally got a choice regarding what resolution would be best for you. ZL15-16 is poor, ZL18 is quite good and ZL20 is really fabulous (where ZL = Zoom Level). However, you might find that without a solid state drive, a fast processor or a very gutsy GPU you'll be struggling. And at 15-20k ft, is it worth having mega-high resolution ground textures?
) has a great FAQ section and examples (as well as some good files) of scenery tile Zoom Levels. With most things, it’s a trade-off…
Finally, if you are still having some issues, do go onto the Ortho4XP Support Forum section (http://forums.x-plane.org/index.php?/fo ... -ortho4xp/
) . Oscar Pilote - the author - is regularly online and very happy to help out with any issues you might have. But look through the pages to see if your query has already been answered, which will save you a lot of time!
Hope this helps…