I've been experimenting with a photorealistic animation of an Earth-like planet, but I've been having a couple of rendering issues regarding the atmosphere volume material:
- Visible red areas on the planet's night side, where it should be black. This is much less noticeable when switching from computing with my GTX 980 to a CPU compute, but still visible at certain angles.
- The rendered volume appears to be as if it was rendering with a flat shading, as the edges of the geometry can be seen from the shaidngs of the areas close to the scattering area.
Here is a screnshot of the render result and the atmosphere setup. The planet doesn't have a night lights texture.
I'm clueless what could be the reason why this happens, as I followed the steps from here and from here. My best guess would be that I need to tweak the rendering settings a bit since it seems like the red areas are scattering miscalculations.