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> That can be done with light_groups. I used them to get highlights in my
> image. Have you done any experiments involving reflection in the finish?
Reflection has strange results (see post: "Radiosity (Yes, again)" 7/08/00)
on the ground, shadow looks bad (round shape). But it isn't visible on the
objects.
David
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"Tony[B]" wrote:
> Fnaa! Fnaa! <thud> Ooooh.... my head... That looks very cool Gilles. Please
> post the source code. :)
Wish granted. Scenes are in p.b.s.f. (without the skull and the image map for
the second). But the radiosity settings are basically yours, so don't expect to
be surprised...
G.
P.S. I can send the skull (originally courtesy of Ken Tyler) to those who can
manage a 1.4 zip file in their mailbox.
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"Tony[B]" wrote:
> > One nice thing would be the possibility of having highlights without real
> > lights, something like light_source{<blah,blah,blah> color Blah
> highlights_only}.
>
> That can be done with light_groups. I used them to get highlights in my
> image. Have you done any experiments involving reflection in the finish?
I've done experiments with reflection but they're much better when a light is
involved.
About light_groups, I'm not familiar with them but it's certainly an
interesting solution. My idea, though, was to keep the light from lighting
(sounds stupid I know) so that that I don't have to play with a zillion
settings to get the object right in the cases where radiosity alone does the
job qiuckly and smoothly (as seen in my test images). For instance, I'd love to
do a street scene where the only light would be from a very white, deep cloud
layer. For the time being, though, area lights and light_groups will have to
do.
G.
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> Can you post a sample ?
Basically, this is what I'm doing. The light won't affect the plane, but it
will highlight the ball.
light_source {<1,1,-1>*10 1 groups "walla"}
plane {y,0 pigment {rgb 1} light_group "!walla"}
sphere {y,1 pigment {red 1} finish {phong 1}}
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> I've done experiments with reflection but they're much better when a light
is
> involved.
All my work shows splotches (as visible under the shoes).
> About light_groups, I'm not familiar with them but it's certainly an
> interesting solution. My idea, though, was to keep the light from lighting
I don't get it. What is it that you want and don't want the light to do?
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"Tony[B]" wrote:
>
> > Can you post a sample ?
>
> Basically, this is what I'm doing. The light won't affect the plane, but it
> will highlight the ball.
>
> light_source {<1,1,-1>*10 1 groups "walla"}
> plane {y,0 pigment {rgb 1} light_group "!walla"}
> sphere {y,1 pigment {red 1} finish {phong 1}}
This i knew, but it would not work with radiosity in the way Gilles wanted it
(if i understood him right).
It would need some light_group support for the finish-statement like:
finish {
diffuse 0.6 light_group "!lg1"
specular 0.3 light_group "lg1"
}
Christoph
--
Christoph Hormann <chr### [at] gmx de>
Homepage: http://www.schunter.etc.tu-bs.de/~chris/
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Those are the strangest speakers I've ever seen...
--
David Fontaine <dav### [at] faricynet> ICQ 55354965
Please visit my website: http://davidf.faricy.net/
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Looks kinda splotchy, maybe you should up the count >;)
--
David Fontaine <dav### [at] faricynet> ICQ 55354965
Please visit my website: http://davidf.faricy.net/
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In article <39B3BAF3.BB62D6C2@inapg.inra.fr>, Gilles Tran
<tra### [at] inapginrafr> wrote:
> One nice thing would be the possibility of having highlights without
> real lights, something like light_source{<blah,blah,blah> color Blah
> highlights_only}.
How does this syntax look?
light_source {POSITION, COLOR, etc...
specular |on|off|
phong |on|off|
diffuse |on|off|
shadowless |on|off|
etc...
}
--
Christopher James Huff
Personal: chr### [at] maccom, http://homepage.mac.com/chrishuff/
TAG: chr### [at] tagpovrayorg, http://tag.povray.org/
<><
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On Mon, 4 Sep 2000 07:28:29 -0500, Bob Hughes wrote:
>If I had seen something like this several years ago my jaw would have
>dropped. Too bad it's not years ago. :-)
>
>I haven't seen this "Arnold" thing people keep mentioning, should I go look
>for it?
I've never heard of it untill TonyB's posting of the shoes and St Nick.
Someone give us a URL.
>
>Bob
>
>
>
--
Cheers
Steve email mailto:ste### [at] zeroppsuklinuxnet
%HAV-A-NICEDAY Error not enough coffee 0 pps.
web http://www.zeropps.uklinux.net/
or http://start.at/zero-pps
8:48pm up 14 days, 1:06, 3 users, load average: 1.16, 1.10, 1.08
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