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Looks great ;-)
"Kari Kivisalo" <pro### [at] luxlab com> wrote in message
news:3DAED58A.390EA1DE@luxlab.com...
>
> Model by Kenneth Storm. Lego CAD stuff: http://www.ldraw.org/
>
>
> _____________
> Kari Kivisalo
----------------------------------------------------------------------------
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Very impressive!! I can see that you postprocessed it with a smooth-filter,
followed by a sharpen-filter. This is a little trick that cheats us to think
it's taken with a good old camera.
I hope you post it on some important websites too, those who ignorantly
ignore POV, to show them the power of this great program, and of course your
skills. And if you like, please share some information with us about how you
created the light & textures.
Best regards,
Hugo
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"Hugo" <hua### [at] post3teledk> wrote in news:3daffb77@news.povray.org
> Very impressive!! I can see that you postprocessed it with a
> smooth-filter, followed by a sharpen-filter. This is a little trick
> that cheats us to think it's taken with a good old camera.
can You tell something more about this trick ?
--
#macro g(U,V)(.4*abs(sin(9*sqrt(pow(x-U,2)+pow(y-V,2))))*pow(1-min(1,(sqrt(
pow(x-U,2)+pow(y-V,2))*.3)),2)+.9)#end#macro p(c)#if(c>1)#local l=mod(c,100
);g(2*div(l,10)-8,2*mod(l,10)-8)*p(div(c,100))#else 1#end#end light_source{
y 2}sphere{z*20 9pigment{function{p(26252423)*p(36455644)*p(66656463)}}}//M
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> > I can see that you postprocessed it with a smooth-filter
> > followed by a sharpen-filter. This is a little trick that
> > cheats us to think it's taken with a good old camera.
>
> can You tell something more about this trick ?
Yes I can. If you take a close look at most photos that are either scanned
or taken with a digital camera, you will notice that there's kind of an aura
or glow around dark objects on lighter backgrounds (in places with sharp
contrast in luminance). The effect will be less visible in pictures that has
been downsized, but usually visible at decent resolutions. The reason for
the effect is not the camera itself, but the post processing: They've
applied a sharpen filter to compensate for a camera that didn't take a
perfectly sharp picture.
You might say, this must have been a cheap camera, but it could also be
because the person who take the photo is shaking a little (just a *little*)
or the lens was not perfectly focused. This happens very often, even with
expensive cameras, but it can't be considered a law of nature so it isn't
something POV-Ray can do on it's own. It's a limitation of todays
technology, but people are used to see these auras on photos, wether they
notice it consiously or not.. So the trick for adding a bit of extra realism
to a raytracing, is to soften the picture, then sharpen it.. Eventually add
some noise.
Hope you got it. ;o)
Regards,
Hugo
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could you show us an unprocessed picture for comparison?
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"Greg M. Johnson" wrote:
>
> One thing I'm noticing in some of the more pleasantly realistic images is a
> "fogginess" that softens everything.
It's a combination of DOF, radiosity, lighting and the surrounding
scene elements. And in some cases post-processing.
_____________
Kari Kivisalo
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Skip Talbot wrote:
>
> The master of lighting! Do you have any tutorials?
Nope. Rendering is more fun than writing documents and
I'm just learning this stuff via these doodles.
_____________
Kari Kivisalo
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Rafal 'Raf256' Maj wrote:
>
> Very good, only tires/whell... is it possible to set higher triangles /
> cone setting in lego cad ?
I think the polycount can be increased when exporting from those tools.
Smooth triangles may also be supported but I didn't see any models
that used them.
_____________
Kari Kivisalo
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Hugo wrote:
>
> I can see that you postprocessed it with a smooth-filter,
> followed by a sharpen-filter.
No smoothing was used. Sharpen was used to reduce the DOF.
> And if you like, please share some information with us about how you
> created the light & textures.
It's a basic three point lighting scheme used in photography
and movies. The textures have phong higlights, bumps and some fresnel
reflection, no tricks or cheating :) The wood has averaged textures
to make fuzzy reflections with bumps.
_____________
Kari Kivisalo
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>
> could you show us an unprocessed picture for comparison?
Just remove the noise and blur it a bit to get the original :)
_____________
Kari Kivisalo
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