Lunar eclipse affects the unlit side of the Moon

[Atque]

This is a rarely seen limitation, but I thought I might report it anyway.

Lunar eclipses affect the non-illuminated side of the Moon. This is unrealistic, as the sunrays cannot reach those parts of the Moon during a lunar eclipse, and thus they should remain in total darkness. This is only visible from space, which is why this is a rarely seen limiation. See the screenshot below.

A similar limiation is that the Earthshine is visible evenly across the non-illuminated lunar surface, even the parts from which the Earth is invisible. See the screenshot below. This is also only visible from space.

[gzotti]

Funny perspectives. Yes, the unilluminated side of the Moon which also points away from Earth should be black when seen from some "observer". From Earth you never see this issue.

The earthshine is modelled as "ambient" light component in the classical OpenGL model, so this is not directional. It is a limitation I have learned to live with.

[10110111]

It is a limitation I have learned to live with.

Isn't it an artificial limitation? We can just add another uniform to show direction to the Earth and use the BRDF twice instead of once.

[gzotti]

@10110111 if you can do that, please go ahead. For me the focus of this program is still earth-bound simulation.

[github-actions]

Hello @Atque!

Thank you for suggesting this feature.