After reading Christian Parpart's request for a visible sun, I got three
different ideas ( and more as I went on) on how to go about. They are
shown below with the disclaimer: the sun disc appearence, corona
size/intensity, and sky coloring are my own particular choice and do not
necessarily reflect the limitations of the technique employed.
Version 1 - textured sky_sphere
Version 2 - light_source-through-scattering-media sun, w/ sky_sphere for
the blue sky color.
Version 3 - textured disc w/ high ambient for the sun "shining" through
a semi-transparent sphere (which carries the blue sky color) centered on
the camera (does this make any sense??)
Source in p.b.s-f.
Abe
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