Update for X4 6.0.

Update for X4 5.1.

Bugfix for complex_surface shader compilation crash.

Update for X4 5.0.

Update for X4 4.1.

Update for X4 4.0 render distance changes. Reduced asteroid targeting range to 25km to prevent occasional popin due to zone culling.

Changed dither algorithm to use absolute angles instead of screen coordinates. Fade in range limited to 15 km start to end.

Alternate technique to get xxl asteroids to display in low attention zones. Removed most fps loss, as distant insector aiscripts no longer run at higher precision.