POV-Ray : Newsgroups : povray.binaries.images : My first MegaPOV0.4 image(26k bu) : Re: My first MegaPOV0.4 image(26k bu) Server Time
5 Nov 2024 08:26:32 EST (-0500)
  Re: My first MegaPOV0.4 image(26k bu)  
From: mr art
Date: 30 Jan 2000 20:24:46
Message: <3894E471.817EBF90@gci.net>
The real problem for me is to get the highlighting on the "water"
areas only. Any ideas? The whole thing is an isosurface with a nice
pigment map from NASA to overlay the shape. The isosurface is defined by
a
grayscale image from NASA.

Bob Hughes wrote:
> 
> "mr.art" <mr.### [at] gcinet> wrote in message news:3894D38A.F6F3E4D4@gci.net...
> | Actually, I had never seen the earth with highlights,
> 
> It does of course.  Any elevation above ground from your standing height (or
> lower?) to orbital height (and higher?) can show it.  Look into your own heads
> shadow at noon and you'll likely see it's brighter immediately around the shadow
> edges, from an airplane shows it very well, and there are numerous Earth photos
> which show it too.  This particular image with the sunlight direction off-center
> may be a different story though.  Anyway I've never seen that much before, it
> implies a lot of roughness, or *small-scale angular faceting, on the surface.  I
> want to try that type of highlighting myself now  :-)
> 
> *blinn microfacets?
> 
> Bob

-- 
Mr. Art

"Often the appearance of reality is more important 
than the reality of the appearance."
Bill DeWitt 2000


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