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I was trying to use some fog in my scene and no matter where I put my
camera, the compiler always said it was inside a non-hollow object. I
finally got it to stop when I added the "hollow" key word to the plane
object.
Is this a bug or what?
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"Topher" <top### [at] descentbb net> wrote in message
news:3ba635eb$1@news.povray.org...
> I was trying to use some fog in my scene and no matter where I put my
> camera, the compiler always said it was inside a non-hollow object. I
> finally got it to stop when I added the "hollow" key word to the plane
> object.
>
> Is this a bug or what?
>
>
No
Read 6.5.3.1
-tgq
--
camera{location z*13look_at 0}light_source{15 15looks_like{sphere{0 10
}pigment{rgb 1}finish{ambient 15}}}union{torus{3,0.5rotate x*90}cone{y
*4,.5,-y*8,0}cone{-x*4,.5,x*8,0}pigment{rgb<.7,.6,.4>}finish{ambient 0
diffuse 0reflection{1fresnel on metallic 1}}interior{ior 25}rotate 15}
plane{y,-7pigment{checker rgb 0rgb 1scale 4}finish{diffuse.1}}// TGQ
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Topher wrote:
> I was trying to use some fog in my scene and no matter where I put my
> camera, the compiler always said it was inside a non-hollow object. I
> finally got it to stop when I added the "hollow" key word to the plane
> object.
>
> Is this a bug or what?
No bug - POV's done that for as long as I can remember (since at least
version 3.0). Planes have one side that's considered "inside" it and one
side that's considered "outside" it. I think the "inside" is the side
that's opposite to the normal vector you use to define it, hence for a
plane {y,0}, the "inside" would be anything where y<0.
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Think about a plane as an infinite box. It helps understanding why one
side is "inside" and the other "outside". In one side you are inside the box,
while in the other you are outside.
--
#macro N(D,I)#if(I<6)cylinder{M()#local D[I]=div(D[I],104);M().5,2pigment{
rgb M()}}N(D,(D[I]>99?I:I+1))#end#end#macro M()<mod(D[I],13)-6,mod(div(D[I
],13),8)-3,10>#end blob{N(array[6]{11117333955,
7382340,3358,3900569407,970,4254934330},0)}// - Warp -
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