2D clouds as a textured "plane" (actually a large sphere). The shading idea
I got from  Vahur Krouverk's cloud shader #2. I actually started playing
with the idea a while ago, and I just keep coming back to it for some
reason.

Although the cloud illumination effect is there, I'm still not satisfied
with the contrast or the cloud color control. Several other flaws should
become apparent too with a closer look, namely sharp shadow lines, parallel
shadows and the loss of 3D appearance at the horizon where the clouds become
a uniform speckled mass.

Atmosphere is media.

A lot of fun to play with.


--
Abe
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http://www2.taconic.net/bullfrog/sky
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