For anyone who wants to try it, i've uploaded a test version of the changes i've made to Instanbul Park so far. It's a full track version because it's easier for me to test and change things this way. Don't worry, it's a standalone track for now and won't interfere with your original version. You can safely delete it if you don't like it. In your track list, it will come up as 'Istanbul Park Test'.
Istanbul Park Test
List of changes I can remember:
-- New grass textures.
-- New VAO patches.
-- Jumbotrons are live via a track skin. They can be turned off by disabling the skin.
-- Fixes to some of the shader and material entries. No value changes, but a bunch of them had the same names which disabled a lot of the lights that were supposed to come on.
-- Added some trees and treewalls to hide some dead space areas.
-- Other little tweaks here and there.
One thing i've noticed with this track is a ton of z-fighting and flickering. So much that I wouldn't even know where to begin to try and correct them all. At first I thought it was something I did, but I tested an unedited copy of the original track and it does the same thing. Does anyone else have the same problem with this track or could I possibly have an older version?