How to add atmospheric glow to a planet

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Hi there!

I made a planet in Autodesk 3D Studio Max 2013, with a glowing atmosphere. However, when I exported it as an FBX, it didn't exported the atmosphere effect, instead exporting a sphere with no transparency and for sure, not glowing.

So, I came here asking, if there is a way of adding the same effect, inside Unity? If there is, how?

Thank you in advance.

João Borrego

Answer 1

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Answer by ScroodgeM · Aug 06, 2012 at 09:01 PM

shaders that used in 3D max are for one-shot rendering, unity3d uses only real-time optimized, that are as simple as possible. so shaders from 3D modelling app can't used in 3d engine "as is". you should find/write shader for real-time rendering.

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JPB18 · Aug 06, 2012 at 09:46 PM 0

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I found this one:

http://entitycrisis.blogspot.pt/2011/01/planet-shader-2.html

And it works great. Thanks!

Answer 2

Answer by nemsy · Aug 06, 2012 at 09:32 PM

nVIDIA's "GPU-Gems 2", Chapter 16 covers realistic atmospheric scattering and how it's accomplished with shaders
http://http.developer.nvidia.com/GPUGems2/gpugems2_chapter16.html

alternatively, there are quite a few assets floating around that can help you easily accomplish this effect, here's just one of them:

http://forum.unity3d.com/threads/112058-Atmospheric-Scattering-LIVE-on-AssetStore

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How to add atmospheric glow to a planet

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