A complete reworking of the lighting engine.
-- One, to allow multiple light sources so binary stars can be added. Two, to improve shadow rendering for eclipses. Look at a Jovian moon during a solar eclipse to see what I mean.
A redo of the rendering engine.
-- Load lo-res texture first. Then Med-red at a certain radius. Finally a Hi-res texture at another preset radius. The simulation does not pause on load. Basically, I would like to see the pauses caused by loading a texture eliminated. I figure a tiered system for loading textures may remedy this since, at far distances, there is little to no difference to what is displayed on a object regardless of which texture is used.
The hole in the sky
-- Change/fix the atmosphere rendering so the "Hole in the Sky" is fixed.