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"Kari Kivisalo" wrote:
> The interesting part is how to orient the pen strokes.
> I used blurred image as hf and with trace found the
> direction of the contour line at that point.
I *knew* a heightfield was involved! ;)
How many cylinders in the scene? Render time? AA settings? And were all the
cylinders black or did they very in color dependent on intensity?
BTW, I'd be interested in seeing the result if you rotated all the cylinders
by 90 degrees. Would make for a less harmonic and more spiky image I'm sure.
45 degrees might also be interesting. :)
> More interesting stuff can be done if the range data
> is available for the image like in pov. First render
> a scene as normal image. Then output depth image,
> blur it and use as hf. The brush strokes should follow
> the surfaces or something like that.
I don't think that would be as visually interesting. The great thing about
the current image is that it looks very hand-crafted, like it wasn't made by
a computer. Something difficult to obtain.
Rune
--
3D images and anims, include files, tutorials and more:
Rune's World: http://rsj.mobilixnet.dk (updated Jan 20)
POV-Ray Users: http://rsj.mobilixnet.dk/povrayusers/
POV-Ray Webring: http://webring.povray.co.uk
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Rune wrote:
>
> How many cylinders in the scene? Render time? AA settings?
> And were all the
> cylinders black or did they very in color dependent on intensity?
300x300 sample grid makes it 90000 cylinders. All black. Maybe 2 minutes
+am2 +a0.5.
> BTW, I'd be interested in seeing the result if you rotated all the cylinders
> by 90 degrees. Would make for a less harmonic and more spiky image I'm sure.
> 45 degrees might also be interesting. :)
http://www.pp.htv.fi/kkivisal/ht/
_____________
Kari Kivisalo
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"Kari Kivisalo" wrote:
> 300x300 sample grid makes it 90000 cylinders.
> All black. Maybe 2 minutes +am2 +a0.5.
Sounds great!
(But a render time should always be followed with a processor specification.
;)
> > BTW, I'd be interested in seeing the result if you
> > rotated all the cylinders by 90 degrees. Would make
> > for a less harmonic and more spiky image I'm sure.
> > 45 degrees might also be interesting. :)
>
> http://www.pp.htv.fi/kkivisal/ht/
Thanks! the 90-degree one is just like I imagined, the 45 degree one not as
interesting. But the best one is still your original one. I definitely must
play around with this sometime...
Rune
--
3D images and anims, include files, tutorials and more:
Rune's World: http://rsj.mobilixnet.dk (updated Jan 20)
POV-Ray Users: http://rsj.mobilixnet.dk/povrayusers/
POV-Ray Webring: http://webring.povray.co.uk
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"Kari Kivisalo" <ray### [at] engineer com> wrote in message
news:3C5D5450.CFC594A6@engineer.com...
>
>with trace found the direction of the contour line at
> that point.
Excuse my ignorance, but what is a contour line on a height-field? Are you
referring to the normal at that point, or some other characteristic with
which I am unaware?
-Shay
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Replying to myself.
I bet youre talking about a line perpendicular to the surface normal and +y.
Am I right?
"Shay" <shi### [at] houstonrrcom> wrote in message
news:3c5d900d$1@news.povray.org...
>
> "Kari Kivisalo" <ray### [at] engineercom> wrote in message
> news:3C5D5450.CFC594A6@engineer.com...
> >
> >with trace found the direction of the contour line at
> > that point.
>
> Excuse my ignorance, but what is a contour line on a height-field? Are you
> referring to the normal at that point, or some other characteristic with
> which I am unaware?
>
> -Shay
>
>
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Shay wrote:
>
> Excuse my ignorance, but what is a contour line on a height-field?
Same as elevation lines in topographic map.
_____________
Kari Kivisalo
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Kari Kivisalo wrote:
> First try at artistic half-toning. Interesting possibilites
> POV-Ray has.
> http://lightning.prohosting.com/~lf/amidala.jpg
> http://lightning.prohosting.com/~lf/amidala_hq.jpg
Phagh, ANYBODY slaps a filter over an image on computer
and calls themselve le artiste...REAL half-tone art, be
it pen/ink or zipotone, is done by hand!
--
Tim Cook
http://personal.lig.bellsouth.net/lig/z/9/z993126
-----BEGIN GEEK CODE BLOCK-----
Version: 3.12
GFA dpu- s: a?-- C++(++++) U P? L E--- W++(+++)>$
N++ o? K- w(+) O? M-(--) V? PS+(+++) PE(--) Y(--)
PGP-(--) t* 5++>+++++ X+ R* tv+ b++(+++) DI
D++(---) G(++) e*>++ h+ !r--- !y--
------END GEEK CODE BLOCK------
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"Timothy R. Cook" <tim### [at] scifi-fantasycom> wrote in message
news:3C5F2D1A.DADFD9B4@scifi-fantasy.com...
>
> Phagh, ANYBODY slaps a filter over an image on computer
> and calls themselve le artiste...REAL half-tone art, be
> it pen/ink or zipotone, is done by hand!
>
Yes, but can anyone write a half-toner in POV? (or did you miss that part?)
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On Tue, 5 Feb 2002 10:27:35 -0000, "Tom Melly" <tom### [at] tomandlucouk> wrote:
> Yes, but can anyone write a half-toner in POV?
http://news.povray.org/slrna07gqe.mu2.ron.parker%40fwi.com
ABX
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> On Tue, 5 Feb 2002 10:27:35 -0000, "Tom Melly" <tom### [at] tomandlucouk> wrote:
>> Yes, but can anyone write a half-toner in POV?
>
> http://news.povray.org/slrna07gqe.mu2.ron.parker%40fwi.com
Ah, but he's not just anyone. He's weird.
--
#macro R(P)z+_(P)_(P)_(P+1)_(P+1)+z#end#macro Q(C,T)bicubic_patch{type 1u_steps
6v_steps 6R(1)R(3)R(5)R(7)pigment{rgb z}}#end#macro _(Y)#local X=asc(substr(C,Y
,1))-65;<T+mod(X,4)div(X,4)9>-2#end#macro O(T)Q("ABEFUQWS",T)Q("WSXTLOJN",T)#
end O(0)O(3)Q("JNKLCGCD",0)light_source{x 1}// ron### [at] povrayorg
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