Atmosphere of some planets appears as transparent sphere when seen from outside

[MirceaKitsune]

When approaching some planets, the atmopshere has a hard edge and appears as a transparent sphere when seen from the outside, it will appear normal once the ship enters it and it's seen from below. Attached two screenshots of the issue: First is the atmosphere seen before the ship is close, second is the correct result once the ship is inside the atmosphere.

Scattering is set to Rayleigh / MIE (accurate per-pixel), haven't checked if it also happens with Legacy. OS is Linux (Manjaro, KDE Plasma, Wayland) stock amdgpu driver, Pioneer compiled from latest Git master.

[bszlrd]

(Sorry, couldn't resist :P)

[fluffyfreak]

Unfortunately that is a pretty accurate representation of how our atmospheres work 🤣 minus the giant mecha-maid of course.

There's a shell of geometry that we render around each planet which has the atmosphere shader run on it

[fluffyfreak]

Not that it doesn't maybe need tweaking of course. The actual function responsible for rendering the atmospheres is BaseSphere::DrawAtmosphereSurface, which is both hackier and uglier than I remember it being, I must be getting old.

[MirceaKitsune]

The geometry shell makes sense: Virtually the volume is rendered inside a fixed sphere. The only issue seems to be that it doesn't fade to 0 alpha toward the outer edge when seen from the outside.