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On Tue, 15 Jan 2002 13:51:28 -0000, Tom Melly wrote:
> "Ron Parker" <ron### [at] povray org> wrote in message
> news:slr### [at] fwicom...
>>
>> And so it is. Those with access to the source code to 3.1 or higher can
>> see in discs.c (or discs.cpp) that Inside_Disc is not a simple "return false"
>> like, say, Inside_Triangle. The inside of a disc is the inside of the
>> plane that contains the disc. NOTE that it is not constrained by the radius
>> of the disc, either, making the insideness of discs somewhat useless, but
>> that's how it's defined.
>>
>
> Is this a bug, or do the docs just need changing?
I suppose it should be documented, for those who care. To be honest, I think
the inside of a disc should respect the disc's radius, or the disc just
shouldn't have an inside (though changing that now might affect scenes of
people who thought it did) but what's most likely is that the docs will just
change to reflect the reality.
--
plane{-z,-3normal{crackle scale.2#local a=5;#while(a)warp{repeat x flip x}rotate
z*60#local a=a-1;#end translate-9*x}pigment{rgb 1}}light_source{-9red 1rotate 60
*z}light_source{-9rgb y rotate-z*60}light_source{9-z*18rgb z}text{ttf"arial.ttf"
"RP".01,0translate-<.6,.4,.02>pigment{bozo}}light_source{-z*3rgb-.2}//Ron Parker
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