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Saw something similar to this on a wall in an office where I'm doing
some work and though it could be easily done in POV.
Enjoy, I think!
Cheers,
Ian Shumsky
http://www.outerarm.demon.co.uk/graphics/graphics.html
Post a reply to this message
Attachments:
Download 'boxes.gif' (13 KB)
Download 'boxes.pov.txt' (2 KB)
Preview of image 'boxes.gif'
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What black dots?
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This is actually an animation, triggered off of your eyeballs. When your
eyes slowly move across any line, the animation uses AI to play footage
of black dots appearing at the intersections you're NOT looking at.....
"Tony[B]" wrote:
> What black dots?
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If you want to understand how the illusions works, check out:
http://www.sandlotscience.com/Contrast/Contrast_frm.htm
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35 black dots? ;-))
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On Tue, 14 Nov 2000 11:15:13 +0000, Ian Shumsky wrote...
> Saw something similar to this on a wall in an office where I'm doing
> some work and though it could be easily done in POV.
>
> Enjoy, I think!
I like those sort of optical illusions, and I remembered another one I
like, hang on, I'll go and POV it.
<insert time lapse>
OK, there should be a .png attached showing another variant of the one
you posted.
Bye for now,
Jamie.
Post a reply to this message
Attachments:
Download 'optical_illusion_33.png' (30 KB)
Preview of image 'optical_illusion_33.png'
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Ian Shumsky wrote:
>
> Saw something similar to this on a wall in an office where I'm doing
> some work and though it could be easily done in POV.
>
Gaaah! Make it stop!
I hate this particular optical illusion; extended expose will drive me nuts :)
--
Margus Ramst
Personal e-mail: mar### [at] peak eduee
TAG (Team Assistance Group) e-mail: mar### [at] tagpovrayorg
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I agree whole heartedly. I just feel so helpless when i look at it :)
Margus Ramst wrote:
> Gaaah! Make it stop!
> I hate this particular optical illusion; extended expose will drive me nuts :)
>
> --
> Margus Ramst
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This is pure evil.
"Ian Shumsky" <pov### [at] outerarmdemoncouk> wrote in message
news:3A111EC1.D9B3275D@outerarm.demon.co.uk...
> Saw something similar to this on a wall in an office where I'm doing
> some work and though it could be easily done in POV.
>
> Enjoy, I think!
>
> Cheers,
> Ian Shumsky
> http://www.outerarm.demon.co.uk/graphics/graphics.html
----------------------------------------------------------------------------
----
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OUCH MY EYES!!!!! and 0 black dots
Ian Shumsky wrote:
> Saw something similar to this on a wall in an office where I'm doing
> some work and though it could be easily done in POV.
>
> Enjoy, I think!
>
> Cheers,
> Ian Shumsky
> http://www.outerarm.demon.co.uk/graphics/graphics.html
>
> ------------------------------------------------------------------------
> [Image]
>
> Name: boxes.pov
> boxes.pov Type: POV-Ray scene file
(application/x-unknown-content-type-POV-Ray.Scene)
> Encoding: base64
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Another annoying image. Floating orb:
http://hammer.prohosting.com/~kkivisal/float3.gif
______________________________________________________________________
Kari Kivisalo http://www.kivisalo.net
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Kari Kivisalo wrote:
>
> Another annoying image. Floating orb:
> http://hammer.prohosting.com/~kkivisal/float3.gif
>
Access forbidden.
Does prohosting allow direct downloads?
--
Margus Ramst
Personal e-mail: mar### [at] peakeduee
TAG (Team Assistance Group) e-mail: mar### [at] tagpovrayorg
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Margus Ramst wrote:
>
> > http://hammer.prohosting.com/~kkivisal/float3.gif
>
> Access forbidden.
> Does prohosting allow direct downloads?
Works fine in Netscape 4.7 and IE 3, link or location. New IE users seem
to be the only ones affected.
______________________________________________________________________
Kari Kivisalo http://www.kivisalo.net
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Kari Kivisalo wrote:
>
> Works fine in Netscape 4.7 and IE 3, link or location. New IE users seem
> to be the only ones affected.
>
Netscape 4.7 and IE 5 here. I get a 403 with both on the direct link.
The location works but it just transfers me to kivisalo.net
I know. I's just another conspiracy against Estonians, ain't it?
--
Margus Ramst
Personal e-mail: mar### [at] peakeduee
TAG (Team Assistance Group) e-mail: mar### [at] tagpovrayorg
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From: David Fontaine
Subject: Re: Eye Puzzle (13+2 KBU) - optical_illusion_33.png [1/1]
Date: 17 Nov 2000 17:18:15
Message: <3A15AE3A.437EFAE8@faricy.net>
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There's no such thing as a shade of black.
--
David Fontaine <dav### [at] faricynet> ICQ 55354965
My raytracing gallery: http://davidf.faricy.net/
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270,000?
--
David Fontaine <dav### [at] faricynet> ICQ 55354965
My raytracing gallery: http://davidf.faricy.net/
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Stare at the center of the circle...
--
David Fontaine <dav### [at] faricynet> ICQ 55354965
My raytracing gallery: http://davidf.faricy.net/
Post a reply to this message
Attachments:
Download 'opticalillusion.png' (10 KB)
Preview of image 'opticalillusion.png'
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I take it that the gray is supposed to disappear?
David Fontaine wrote:
>
> Stare at the center of the circle...
>
> --
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Ross Litscher wrote:
> I take it that the gray is supposed to disappear?
Yes. :)
Your visual system is sensitive to light ratios. The ratio of intensity
of adjoining pixels is negligable, so if not seeing the picture as a
whole you don't see the contrast.
--
David Fontaine <dav### [at] faricynet> ICQ 55354965
My raytracing gallery: http://davidf.faricy.net/
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David Fontaine wrote:
>
> There's no such thing as a shade of black.
Yes there is.
--
Ken Tyler - 1400+ POV-Ray, Graphics, 3D Rendering, and Raytracing Links:
http://home.pacbell.net/tylereng/index.html http://www.povray.org/links/
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Kari Kivisalo wrote:
>
> Margus Ramst wrote:
> >
> > > http://hammer.prohosting.com/~kkivisal/float3.gif
> >
> > Access forbidden.
> > Does prohosting allow direct downloads?
>
> Works fine in Netscape 4.7 and IE 3, link or location. New IE users seem
> to be the only ones affected.
I get the same error message in NS 4.72 but the image will display
in IE4. Strange !
--
Ken Tyler - 1400+ POV-Ray, Graphics, 3D Rendering, and Raytracing Links:
http://home.pacbell.net/tylereng/index.html http://www.povray.org/links/
Post a reply to this message
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David Fontaine wrote:
>
> Stare at the center of the circle...
What circle ?
--
Ken Tyler - 1400+ POV-Ray, Graphics, 3D Rendering, and Raytracing Links:
http://home.pacbell.net/tylereng/index.html http://www.povray.org/links/
Post a reply to this message
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In article <3A160B4A.B9507000@faricy.net>, David Fontaine
<dav### [at] faricynet> wrote:
> Your visual system is sensitive to light ratios. The ratio of intensity
> of adjoining pixels is negligable, so if not seeing the picture as a
> whole you don't see the contrast.
Well, I see a light gray smudge that sometimes for brief "flashes"
develops a small dark spot in the center(the gray around the edges fades
out and the center darkens). I take it that isn't supposed to be what I
see...maybe monitor gamma. :-)
--
Christopher James Huff
Personal: chr### [at] maccom, http://homepage.mac.com/chrishuff/
TAG: chr### [at] tagpovrayorg, http://tag.povray.org/
<><
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In article <3A13E633.26328EC4@kivisalo.net>, Kari Kivisalo
<kar### [at] kivisalonet> wrote:
> Another annoying image. Floating orb:
> http://hammer.prohosting.com/~kkivisal/float3.gif
I see a sphere with an unevenly scaled black and yellow checker texture
above/in front of a plane with the same texture rotated 90 degrees. Am I
supposed to see something else?
--
Christopher James Huff
Personal: chr### [at] maccom, http://homepage.mac.com/chrishuff/
TAG: chr### [at] tagpovrayorg, http://tag.povray.org/
<><
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From: David Fontaine
Subject: Re: Eye Puzzle (13+2 KBU) - optical_illusion_33.png [1/1]
Date: 18 Nov 2000 16:04:54
Message: <3A16EE89.AE53DCF8@faricy.net>
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8 a : a color produced by a pigment or dye mixture having some black
in it b : a color slightly different from the one under
consideration
By strictest definition a shade of a color has the same hue and lower
intensity. You can't have a shade of balck.
--
David Fontaine <dav### [at] faricynet> ICQ 55354965
My raytracing gallery: http://davidf.faricy.net/
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Ken wrote:
> David Fontaine wrote:
> >
> > Stare at the center of the circle...
>
> What circle ?
I take it it worked? :)
--
David Fontaine <dav### [at] faricynet> ICQ 55354965
My raytracing gallery: http://davidf.faricy.net/
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David Fontaine wrote:
> You can't have a shade of balck.
Can too !
--
Ken Tyler - 1400+ POV-Ray, Graphics, 3D Rendering, and Raytracing Links:
http://home.pacbell.net/tylereng/index.html http://www.povray.org/links/
Post a reply to this message
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David Fontaine wrote:
>
> Ken wrote:
>
> > David Fontaine wrote:
> > >
> > > Stare at the center of the circle...
> >
> > What circle ?
>
> I take it it worked? :)
No. I don't see a circle. I see a hazy blurred grayish area surronded
by a white background but I don't see a circle per se.
--
Ken Tyler - 1400+ POV-Ray, Graphics, 3D Rendering, and Raytracing Links:
http://home.pacbell.net/tylereng/index.html http://www.povray.org/links/
Post a reply to this message
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Ken wrote:
> No. I don't see a circle. I see a hazy blurred grayish area surronded
> by a white background but I don't see a circle per se.
Sure ya do, there's lots of 'em. Every set of points which is the same
approximate shade of white is a circle. :)
--
David Fontaine <dav### [at] faricynet> ICQ 55354965
My raytracing gallery: http://davidf.faricy.net/
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