Trying out PQS mode. Interim Commit.
moved to PQS.
Fleshing Out PQS Changes

GUI Mapping
Shader floats
Added distance fading for clipsafe
More Shader updates, still need to fix rim

Moved to altitude change.
Working on final config tweaks. Almost ready.
shader updates, misc fixes.
Settings look good. PQS is operational.
more PQS tests, much better.
A bit cleaner.
More update attempts. Going OK.

Couldn't find a way to tie into the fading mechanism that is built-in.
looks like it doesn't, so we just do a manual swap of layers. Results in
a flicker. :(
Testing non-PQS references
Moved Away from dual-overlays. Now we switch overlay contexts.

PQS IS NOT USED.
Removed cubic mapping too much memory and no one used it anyways.
Fixing up Editor initialization
Fixed altitude settings.
fix rotation.
Clean up Main menu clouds.
updated sphere generation
Starting Work on Volume Clouds.
Working on shader and cloud system.