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Author Topic: New stereo image  (Read 5694 times)
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cKleinhuis
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« Reply #15 on: May 06, 2007, 10:04:21 PM »

hmm, i must be too stupid, i am wiggling around my eyes, and i do see 4 or 3 images, but i do not get the 3d illusion ... sad
6 feet away, isnt that a bit too far ?

sad

 cry
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ericbigas
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« Reply #16 on: May 06, 2007, 10:36:46 PM »

Thanks Don.  These are cool, though I can't get some of them to converge into 3D.  The smaller images seem to work better for me.  Looking forward to the animation.
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doncasteel8587
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« Reply #17 on: May 06, 2007, 11:40:33 PM »

Trifox & ericbigas,

I'm sorry you're having trouble, stick with it though, I guarantee it's worth it.

If you want to convert them to "walleyed" just open the image up in a graphics viewer and flip it horizontally. (I never could get the hang of walleyed viewing, but many people say it's easier)

I'm viewing them from about 12-18 inches.

lycium's post had some really good pointers and a link for viewing:

Quote
keep your head a good distance from the screen, and then cross your eyes (as you would look with 100 less iq points ). if you have difficulty with the latter part, focus both eyes on the tip of your finger, and then slowly move it away...

http://www.usm.maine.edu/~rhodes/0Help/StereoView.html

If you see three images, you've almost got it, just ignore the outer two, relax your eyes and let them focus on some small detail in the middle one.

I really hope you can get the hang of it, there is no comparison between the flat 2D and stereo 3D
« Last Edit: May 06, 2007, 11:52:52 PM by doncasteel8587 » Logged
Nahee_Enterprises
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« Reply #18 on: May 07, 2007, 08:33:32 PM »

Don Casteel wrote:
>
>   I don't know how big is too big for the cross eyed effect to work?
>   Disclaimer:  I also DON'T KNOW if viewing these can strain your eyes,
>   view them at your own risk.  huh?  I guess I should read up on it a bit.

Though I have no problem crossing my eyes, and with a little effort I can independently cross each one separately (since I can also move each one separately with a bit more effort), I have never been able to accurately focus so that I see only one object the way others do.  Not sure if it has to do with my screen resolution, distance from the screen, just my eyes not focusing correctly, or a combination of factors.

Which is why I have never found much interest in seeing almost identical images side by side.
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doncasteel8587
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« Reply #19 on: May 08, 2007, 01:11:23 AM »

I understand completely that it's frustrating when you can't do it.

What I'd really like to do is find a place that can make up holograms or lenticular prints.



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lycium
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« Reply #20 on: May 08, 2007, 01:30:26 AM »

amateur holography is quite a hot field these days (even though the patent system kinda stifles it in america), you can find out quite a lot about it online. a good starting point is http://users.rcn.com/drlaser/ (edit: argh, i see the links on that page are now quite 404 - i just found http://www.msnbc.msn.com/id/7759505/ which looks like it has the basics)

still, unfortunately you can't put them on the internet for us to see... much unlike a stereo animation wink
« Last Edit: May 08, 2007, 01:33:44 AM by lycium » Logged

lhill02
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« Reply #21 on: May 08, 2007, 08:57:41 PM »

Very nice, don.  I had not seen this effect before now. 
I must keep up with the current developments better.
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doncasteel8587
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« Reply #22 on: May 09, 2007, 05:16:24 AM »

Thanks

As far as I know, no one else has tried to do this kind of volumetric raytracing.
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lycium
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« Reply #23 on: May 09, 2007, 05:25:02 AM »

volumetric rendering is old as the hills, i sent you lots of links about people doing that on the gpu on deviantart, rememeber?

about volume tracing 3d fractals, even in stereo and in realtime, paul bourke did that in 2001: http://local.wasp.uwa.edu.au/~pbourke/fractals/quatjulia/
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doncasteel8587
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« Reply #24 on: May 09, 2007, 12:12:41 PM »

I'm sorry, I didn't mean volumetric raytracing was new (VTK has it built in as a standard visualization tool), and yes stereo images have been around forever.

I do believe the particular effect I'm trying to achieve (and almost have working) is new.


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doncasteel8587
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« Reply #25 on: May 12, 2007, 04:13:32 PM »

This mornings effort
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« Reply #26 on: May 12, 2007, 11:22:49 PM »

This mornings effort


Though I still am unable to "combine" the stereo view into a single object, I liked the image that was generated.  It would be great to see this one as a 3-D animation.
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eNZedBlue
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« Reply #27 on: May 13, 2007, 07:57:34 AM »

Nice images!

I found that the images were too big for me to view (couldn't cross my eyes far enough) with normal screen resolution so I opened the thread up in Opera, which lets you scale html pages (and any images on them) as you are viewing them, and scaled it down to about 60%. Looked great.
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lycium
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« Reply #28 on: May 13, 2007, 02:12:24 PM »

couldn't cross my eyes far enough

move your head back.
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doncasteel8587
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« Reply #29 on: May 14, 2007, 02:49:43 AM »

couldn't cross my eyes far enough

move your head back.

I work with my laptop on my lap, the screen is aproximatly 24" away.

By the way...  More people are having trouble viewing these than I expected. If anyone knows of another way to get full color stereo viewing, I'd be happy to give it a try. I've googled Red/Blue stereo, but I haven't found a method that isn't monochromatic. I've even tried walleyed views placing a cardboard divider between my eyes extending to the screen (yes this feels a little foolish undecided) so each eye can only see the correct image, but I couldn't get it to work.

I'm open to suggestions
« Last Edit: May 14, 2007, 02:51:36 AM by doncasteel8587 » Logged
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