Fulldome/fisheye projection

[Deadmeat553]

I would very much appreciate an update to include a fulldome/fisheye projection option under the graphics options. I recognize that US2 is not meant as planetarium software, but this one little feature is all that's missing that would allow for full planetarium usage. Take a look at this option in Space Engine if you're not entirely sure what to do.

[SyzygyΣE]

Toggling the FOV up achieves a similar effect to fisheye. It is located in View > More > Field Of View.