Path: utzoo!attcan!uunet!convex!swarren
From: swarren@convex.com (Steve Warren)
Newsgroups: comp.sys.amiga
Subject: Re: Problem with intersecting glass spheres in Turbo Silver SV.
Message-ID: <104521@convex.convex.com>
Date: 1 Aug 90 17:00:00 GMT
References: <1095@orange3.qtp.ufl.edu>
Sender: usenet@convex.com
Distribution: na
Organization: Convex Computer Corporation; Richardson, TX
Lines: 23

In article <1095@orange3.qtp.ufl.edu> sutherla@qtp.ufl.edu (Scott Sutherland) writes:
                                [...]
>blue sphere on the left, the red on the right.  Now, the part of the blue 
>sphere that is "inside" the red sphere has had 2 things happen to it.  First,
>the image of this sphere section is distorted (due to the refraction)as viewed
>through the red sphere.  Second, it has now become completely OPAQUE!!The same
>thing happened to the red sphere.  So, I will try to draw the result below
                                [...]

Well, try placing a flat transparent blue plane behind a flat transparent
red plane.  I think you will find in this case that the area of overlap will
also be opaque.  This is because the blue light coming from the blue
transparent plane cannot pass through a red "filter" (a red transparent
plane would filter out all light except red).

I think that what you are seeing is what this would really look like, if you
could intersect two colored glass spheres like this.

--
            _.
--Steve   ._||__      DISCLAIMER: All opinions are my own.
  Warren   v\ *|     ----------------------------------------------
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