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Sunlight illuminates craters before sunrise


king_shredder

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Reported Version: v0.2.0 (latest) | Mods: none | Can replicate without mods? Yes 
OS: Windows 10 | CPU: Intel core i5 | GPU: Nvidia GeForce GTX 1070 | RAM16GB

 

In an orbit around planets/moons without an atmosphere, the terrain (craters) is illuminated well before the sun actually rises. Geometrically this should be impossible. When a planet has an atmoshphere this is probably just not as noticeable I guess. Could this have to do with the fact that terrain above sea level is ignored for this calculation? Just a very naive guess :)

 

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Edited by king_shredder
typo
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Very noticeable when landing at the Minmus monument. The interior of the crater appeared lit, but during descent a black circle of shadow would appear at a certain threshold around the craft. Looks fairly ugly visually, and at worst results in a permanent moving shaded area centered on the craft, which can be disorienting as you can see distant terrain which later turns black.

I assume there's some lighting approximation going on which isn't sufficiently self-shadowing, or fudges the angles. It's fine from a distance, but when you are literally landing inside the craters and the same lighting pass is applied to the close up terrain outside of the active lighting radius then it becomes an issue.

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  • 2 weeks later...

Reported Version: v0.2.0 (latest) | Mods: none | Can replicate without mods? Yes 
OS: Windows 11 | CPU: Intel i7 11th gen | GPU: Nvidia RTX 3070 | RAM64g

When at a large distance from the ground, the terrain is lit up when it should not have sunlight. this causes a mismatch between the cloud shading and the planet shading.

After getting closer to the ground, the lighting returns to normal. this happens on many planets, but it most noticeable on Kerbin, and in craters on Minmus. I have more images to provide, but I can't seem to be able to attach more than one. 

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