Dust / Fog: This was optimised due to a pathological case of overdraw (which looked very broken in a number of cases). There’s definitely no downgrade due to our Mac and Xbox One versions, but there have been some changes. Performance and visual consistency should be improved in the general case, however it does seem that some systems are not looking as good as they did. As ever there is no perfect solution. For a fair comparison, the exact same position and lighting conditions are needed (some viewing angles will always looks more awesome!), but we could have entire threads dedicated to discussions on how to light rings (and we’ve had many long discussions internally). I have a number of open issues in our system on the look of the rings, though currently no ETA for when we’ll be addressing them.”
Please see the video I added to that bug report. I'm sorry, but this ring that used to look stunning is now absolutely awful and the performances in it are worse than they used to be. It's not just that it's "not looking as good as [it] did". Look at the distant asteroids, all updating by blocks. This looks absolutely terrible and I'm dismayed to read that you guys call this an improvement and have no plan to fix it soon!