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There are two planes... One is using media... One is completely black...
There is a black line where there is space between them... Witch one is
the real one...? Just kidding why do they both look like they both have
media...??
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Attachments:
Download 'crack.jpg' (6 KB)
Preview of image 'crack.jpg'
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One of them is 100% reflective. It's that simple.
But no one can see which one.
> Witch one is the real one...?
> Just kidding why do they both look like they both have media...??
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Ryan Mooney wrote:
> There is a black line where there is space between them...
This could possibly be a result of the fact, that those planes never
touch each other. In real world, the horizon is not surrounded by
planes, but spherical, so you can't see eternally. But, with two
infinite planes, you can.
But, this is just a wild guess.
--
/"\ | iki.
\ / ASCII Ribbon Campaign | fi/
X Against HTML Mail | zds
/ \
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the black line is intentional... i did this so you can see the two
planes respectively...
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Ok let me be more clear here is the code for the two planes... the bottom one
has no reflection and is copying the top one exactly... why...??
plane { y, 0 pigment { rgbt 1 }hollow
interior { media { method 2 emission 1 density { MyPattern()
color_map { [0 blue 1][1 rgb <0.55,0.65,0>] } }}} rotate <0,0,0> translate
5*y }
plane { y , 0 pigment { rgb 0 } }
Ryan Mooney wrote:
> There are two planes... One is using media... One is completely black...
> There is a black line where there is space between them... Witch one is
> the real one...? Just kidding why do they both look like they both have
> media...??
>
> ------------------------------------------------------------------------
> [Image]
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On Tue, 27 Mar 2001 10:36:14 -0700, Ryan Mooney wrote:
>Ok let me be more clear here is the code for the two planes... the bottom one
>has no reflection and is copying the top one exactly... why...??
Because planes don't do what you think they do.
Your camera is inside of the plane with media. When the ray exits that
plane (the top half of the picture) POV calculates media effects along the
length of the ray, giving you the media effects you see in the top half
of the picture. When the ray enters a solid object (the other plane, on
the bottom half of the picture) POV also calculates media effects along
the length of the ray, giving you the effects you see in the bottom half.
If the ray never hits anything, POV never calculates the media effects,
and you get the black line you see between the planes.
All of the media you're seeing is between the camera and one plane or the
other. It is not on the other side of either plane. If you invert the
top plane, the media will be on the other side of it, but you will notice
that your media effects disappear entirely in that case, as the ray never
exits the top plane after having entered it and thus the effects are never
calculated.
In general, using infinite objects as media containers is not a good idea.
This scene can be made to work, but only from some camera positions and
angles.
--
Ron Parker http://www2.fwi.com/~parkerr/traces.html
My opinions. Mine. Not anyone else's.
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Thank that makes sense... =]
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