checked out the celestia space-simulator source already? they are able to render stuff from whole galaxies up to tiny details on space-ships. all totaly seamless. might not be easy to figure out what they do but it defiently works great^ 
checked out the celestia space-simulator source already? they are able to render stuff from whole galaxies up to tiny details on space-ships. all totaly seamless. might not be easy to figure out what they do but it defiently works great^