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Hm, hadn't thought about that combination. AFAIK, method 3 is supposed to be
run with intervals on 1, and high sampling rate, whereas method 2 requires
intervals rather than samples. That's just a supposition of mine, if anyone
wants to correct me on that to a significant degree, I'd be happy to listen.
--
Tim Nikias v2.0
Homepage: http://www.digitaltwilight.de/no_lights
Email: tim.nikias (@) gmx.de
> > Update: A quick test revealed that the same occurs with difference
spheres
> > instead of smoothly blobbed "difference", so it ain't a precision
problem
> > with blobs. Hm.
>
> I rendered within a sky_sphere, nothing else in the scene and it didn't
have
> the darker place on that near upper edge. Then I realized I hadn't used a
> camera high enough above the candle and once I lowered it I saw it too.
>
> Turns out that it can be made less obvious if intervals is raised some.
> Well, the original dark place disappears. I know media method 3 is
supposed
> to auto-adjust that for you but nothing is perfect, and you had it at
> intervals 1 so I figured that was a good place to start changing things
> around.
>
> The dark place was the inside curvature, near as I can tell, and it looks
> like it might take an increase in samples, density, intervals or some
> combination of those in order to help eliminate it. Actually, from what
I've
> seen by trying that here, I can still see the inner dimple through the
outer
> shell. Might take a lot of tweaking on those things to get it looking
okay.
>
> --
> Bob H.
> http://www.3digitaleyes.com
>
>
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Just uploaded the new file in PBSF, entitled "Subsurface spherical candle",
as reply to the "Ball Collection" thread. The outdated version was recalled,
though I'm not too sure if that works properly.
--
Tim Nikias v2.0
Homepage: http://www.digitaltwilight.de/no_lights
Email: tim.nikias (@) gmx.de
---
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Nico <rou### [at] loria fr> wrote in news:3f8d6461@news.povray.org:
>
> Anyone interested ?
> Comments ? Ideas ?
>
>
> Nicolas
>
I love it. Once I saw this, I had a vision of a much lager cupboard (9x9
cubbies?) with the center ones holding
P O V - R A Y
And printed out as a Poster
--
Tom
_________________________________
The Internet Movie Project
http://www.imp.org/
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From: Tim Nikias v2 0
Subject: Re: Balls collection (61k) - Contributions needed
Date: 16 Oct 2003 20:16:25
Message: <3f8f34d9$1@news.povray.org>
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That's a great idea! If we'd want it as a Poster though, perhaps some more
effort should be put into the different objects. E.g. Rune's Fur-Texture is
great for smaller objects, but doesn't stand for close scrutiny. Even though
I like the idea of different ideas and techniques being spread in the image,
the result should be near-photorealistic.
And, if the viewing angle permits, perhaps one of the lowest cubes should
get a nice checker texture as floor with a simple, reflective sphere? That
just shouts to be in there for a POV-Ray Poster...
--
Tim Nikias v2.0
Homepage: http://www.digitaltwilight.de/no_lights
Email: tim.nikias (@) gmx.de
>
> >
> > Anyone interested ?
> > Comments ? Ideas ?
> >
> >
> > Nicolas
> >
>
> I love it. Once I saw this, I had a vision of a much lager cupboard (9x9
> cubbies?) with the center ones holding
>
> P O V - R A Y
>
> And printed out as a Poster
>
>
> --
> Tom
> _________________________________
> The Internet Movie Project
> http://www.imp.org/
---
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I've looked into your code to properly test the candle in the actual
environment, and this is what I've found: you forgotten to move the plank by
z*plank_thickness in the end. The thickness points towards the camera and
thus extends from z=2.5 towards z=2.1, so I've just added plank_thickness in
the last translation. Below is the code, you can easily spot the difference
from your to my version:
// Rear plank
object {
IW_Plank_RoundW (
17,
(box_nx*box_x+(box_nx+1)*plank_thickness), plank_thickness,
box_ny*box_y+(box_ny+1)*plank_thickness,
2, 0, 0.05, 0.0035,
pigment { P_IW_10 color_map {CM_IW} scale 5} , Fin_W_02 , No_Normal, 2
)
rotate x*-90
translate -x*(box_nx*box_x+(box_nx+1)*plank_thickness)/2
translate z*(box_z+plank_thickness) // <= Updated here
}
Attached is the small snippet showing the candle from a 500x500 render with
only the candle traced. Required about 5 minutes on my 2.4Ghz XP+ and
shouldn't affect the rendering times of the others boxes as the lightsource
of the candle is pretty much contained in the box.
Regards,
Tim
--
Tim Nikias v2.0
Homepage: http://www.digitaltwilight.de/no_lights
Email: tim.nikias (@) gmx.de
>
> Ooopps, didn't notice. I will try to fix the code.
>
> Nico
>
> Tim Nikias v2.0 wrote:
> > Perhaps I'll have another go with the ESR-Macro just to have some
results to
> > compare. During the process of creating the Subsurface-Scattering I've
> > noticed that the back of the balls intersect with the wooden board...
Care
> > to fix that?
> >
>
---
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Attachments:
Download 'sss_candle2.jpg' (7 KB)
Preview of image 'sss_candle2.jpg'
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Tim Nikias v2.0 wrote:
>And, if the viewing angle permits, perhaps one of the lowest cubes should
>get a nice checker texture as floor with a simple, reflective sphere? That
>just shouts to be in there for a POV-Ray Poster...
Perhaps another of the boxes should include a Cornell's box as well! This
may be taking this too far, but what if each box had it's own simple
scene/theme rather than just a sphere. Each box would still showcase a
specific
technique or feature, as previously suggested.
Post a reply to this message
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From: Tim Nikias v2 0
Subject: Re: Balls collection (61k) - Contributions needed
Date: 17 Oct 2003 05:17:21
Message: <3f8fb3a1@news.povray.org>
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Great Idea. This night I thought, maybe make enough cubes, make a few
statements which scenes are a MUST, and then have still enough room for
Users to volunteer to make one room. E.g. one room for Gilles, I'd like to
have one on a poster, etc. Votes if the room is acceptable should be made to
avoid scenes which don't fit to the overall Poster (atlhough some
Beginner-Images should be in there as well, for example). No limitations on
rendering times, but since everyone has to post his section at some point, I
think everyone will avoid too long rendering times anyways. Any takers?
--
Tim Nikias v2.0
Homepage: http://www.digitaltwilight.de/no_lights
Email: tim.nikias (@) gmx.de
"fitchn" <nomail@nomail> schrieb im Newsbeitrag
news:web.3f8f3b8d92b544a7e36ee7270@news.povray.org...
> Tim Nikias v2.0 wrote:
> >And, if the viewing angle permits, perhaps one of the lowest cubes should
> >get a nice checker texture as floor with a simple, reflective sphere?
That
> >just shouts to be in there for a POV-Ray Poster...
>
> Perhaps another of the boxes should include a Cornell's box as well! This
> may be taking this too far, but what if each box had it's own simple
> scene/theme rather than just a sphere. Each box would still showcase a
> specific
> technique or feature, as previously suggested.
>
>
>
---
Outgoing mail is certified Virus Free.
Checked by AVG anti-virus system (http://www.grisoft.com).
Version: 6.0.525 / Virus Database: 322 - Release Date: 09.10.2003
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From: Hughes, B
Subject: Re: Balls collection (61k) - Contributions needed
Date: 17 Oct 2003 05:23:14
Message: <3f8fb502@news.povray.org>
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"fitchn" <nomail@nomail> wrote in message
news:web.3f8f3b8d92b544a7e36ee7270@news.povray.org...
> Tim Nikias v2.0 wrote:
> >And, if the viewing angle permits, perhaps one of the lowest cubes should
> >get a nice checker texture as floor with a simple, reflective sphere?
That
> >just shouts to be in there for a POV-Ray Poster...
>
> Perhaps another of the boxes should include a Cornell's box as well! This
> may be taking this too far, but what if each box had it's own simple
> scene/theme rather than just a sphere. Each box would still showcase a
> specific
> technique or feature, as previously suggested.
And why stop at a still image? Animate! :-) Could then be hundreds of
office cubicles viewed from above and little POV-Ray Tracer work stations
where the creations are being made. Okay, maybe that's a bit too carried
away. If you have time take a look at
http://www.techtv.com/freshgear/pipeline/story/0,23008,3359171,00.html about
office cubicles, the video there is both interesting and weird.
BTW, the "collection" is already looking very good.
--
Bob H.
http://www.3digitaleyes.com
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Thanks, I updated the code and will repost into p.b.s-f with the new
candle code. I made the golf ball and tried to use your ESR macro to
generate 492 evenly ditributed points but it's taking quite a very long
time so I had to use an external C program I found. The problem is now
that a sphere with 492 differenced objects seems to be very long to
render (I think it is explained on "Mike's Little Web Page"), and it's
even worse than that because I planned to use 13 of them... (see
attached image).
Nico
Tim Nikias v2.0 wrote:
> I've looked into your code to properly test the candle in the actual
> environment, and this is what I've found: you forgotten to move the plank by
> z*plank_thickness in the end. The thickness points towards the camera and
> thus extends from z=2.5 towards z=2.1, so I've just added plank_thickness in
> the last translation. Below is the code, you can easily spot the difference
> from your to my version:
>
>
> // Rear plank
> object {
> IW_Plank_RoundW (
> 17,
> (box_nx*box_x+(box_nx+1)*plank_thickness), plank_thickness,
> box_ny*box_y+(box_ny+1)*plank_thickness,
> 2, 0, 0.05, 0.0035,
> pigment { P_IW_10 color_map {CM_IW} scale 5} , Fin_W_02 , No_Normal, 2
> )
> rotate x*-90
> translate -x*(box_nx*box_x+(box_nx+1)*plank_thickness)/2
> translate z*(box_z+plank_thickness) // <= Updated here
> }
>
> Attached is the small snippet showing the candle from a 500x500 render with
> only the candle traced. Required about 5 minutes on my 2.4Ghz XP+ and
> shouldn't affect the rendering times of the others boxes as the lightsource
> of the candle is pretty much contained in the box.
>
> Regards,
> Tim
>
>
Post a reply to this message
Attachments:
Download 'detail.jpg' (12 KB)
Preview of image 'detail.jpg'
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Tom Galvin wrote:
> Nico <rou### [at] loriafr> wrote in news:3f8d6461@news.povray.org:
>
>
>>Anyone interested ?
>>Comments ? Ideas ?
>>
>>
>>Nicolas
>>
>
>
> I love it. Once I saw this, I had a vision of a much lager cupboard (9x9
> cubbies?) with the center ones holding
>
> P O V - R A Y
>
> And printed out as a Poster
>
That would be definitely very nice, even more if there are enough
contribution to be able to fill it.
Nico
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