Comments on: 3D Mercury crater http://blogs.discovermagazine.com/badastronomy/2008/12/15/3d-mercury-crater/ I am an astronomer, writer, and skeptic. I likes reality the way it is, and I aims to keep it that way. My real name is Phil Plait, and I run the Bad Astronomy blog. Mon, 09 Nov 2009 05:34:35 -0600 http://wordpress.org/?v=2.8.4 hourly 1 By: David http://blogs.discovermagazine.com/badastronomy/2008/12/15/3d-mercury-crater/comment-page-1/#comment-141443 David Wed, 17 Dec 2008 16:17:11 +0000 http://blogs.discovermagazine.com/badastronomy/2008/12/15/3d-mercury-crater/#comment-141443 Is it just me or is this anaglyph reversed (blue left, red right) from standard (red left, blue right)? Is it just me or is this anaglyph reversed (blue left, red right) from standard (red left, blue right)?

]]> By: Freiddie http://blogs.discovermagazine.com/badastronomy/2008/12/15/3d-mercury-crater/comment-page-1/#comment-141137 Freiddie Tue, 16 Dec 2008 05:00:52 +0000 http://blogs.discovermagazine.com/badastronomy/2008/12/15/3d-mercury-crater/#comment-141137 HvP: If I get closer to the screen, I have to increase the cross-eye angle, which is difficult. So I have to stand from afar (~5 dm). HvP: If I get closer to the screen, I have to increase the cross-eye angle, which is difficult. So I have to stand from afar (~5 dm).

]]> By: HvP http://blogs.discovermagazine.com/badastronomy/2008/12/15/3d-mercury-crater/comment-page-1/#comment-141135 HvP Tue, 16 Dec 2008 04:26:54 +0000 http://blogs.discovermagazine.com/badastronomy/2008/12/15/3d-mercury-crater/#comment-141135 Freddie, I don't know about making autostereograms, but simply placing the two halves of the picture on the opposite sides will make it possible for you to look through the picture without having to cross your eyes in the same way that you would with the type you are talking about. Usually, this means that the picture can be larger and you can get closer to the screen to view it. Of course, it's harder to defocus because there is a clear picture in front of you instead of the seemingly randomness of an autostereogram. Freddie,

I don’t know about making autostereograms, but simply placing the two halves of the picture on the opposite sides will make it possible for you to look through the picture without having to cross your eyes in the same way that you would with the type you are talking about.

Usually, this means that the picture can be larger and you can get closer to the screen to view it. Of course, it’s harder to defocus because there is a clear picture in front of you instead of the seemingly randomness of an autostereogram.

]]> By: Freiddie http://blogs.discovermagazine.com/badastronomy/2008/12/15/3d-mercury-crater/comment-page-1/#comment-141041 Freiddie Mon, 15 Dec 2008 20:52:56 +0000 http://blogs.discovermagazine.com/badastronomy/2008/12/15/3d-mercury-crater/#comment-141041 HvP: They really worked for me, but the pictures were smaller (because I had to stand from afar to cross my eyes with a large enough distance). I wonder if there is a program that can take the two images of an object and convert it into the autostereograms. HvP: They really worked for me, but the pictures were smaller (because I had to stand from afar to cross my eyes with a large enough distance). I wonder if there is a program that can take the two images of an object and convert it into the autostereograms.

]]> By: ccpetersen http://blogs.discovermagazine.com/badastronomy/2008/12/15/3d-mercury-crater/comment-page-1/#comment-141001 ccpetersen Mon, 15 Dec 2008 18:41:44 +0000 http://blogs.discovermagazine.com/badastronomy/2008/12/15/3d-mercury-crater/#comment-141001 wow, I go away for a few days, come home to an ice storm and NO internet access for three days and all hell breaks loose on the solar system front! :) I have leftover stereo glasses from any number of doorprize thingies I've won at conferences; and I lurve these anaglyphs of other worlds! Keep 'em coming! wow, I go away for a few days, come home to an ice storm and NO internet access for three days and all hell breaks loose on the solar system front!

:)

I have leftover stereo glasses from any number of doorprize thingies I’ve won at conferences; and I lurve these anaglyphs of other worlds!

Keep ‘em coming!

]]> By: HvP http://blogs.discovermagazine.com/badastronomy/2008/12/15/3d-mercury-crater/comment-page-1/#comment-140999 HvP Mon, 15 Dec 2008 18:36:47 +0000 http://blogs.discovermagazine.com/badastronomy/2008/12/15/3d-mercury-crater/#comment-140999 Just another note. You can make your own side-by-side stereo pair from the anaglyph if you have a "photo shop" type of program (sorry, Windows Paint won't work). You'll need to split the RBG channels and then place the red and green channels next to each other. One way will make it stand out when you cross your eyes and the other way round will make it punch in - so experiment. Here's this one: http://www.flickr.com/photos/24872573@N07/3111272370/ Here's the Mars crater from earlier http://www.flickr.com/photos/24872573@N07/3111281580/ Just another note. You can make your own side-by-side stereo pair from the anaglyph if you have a “photo shop” type of program (sorry, Windows Paint won’t work).

You’ll need to split the RBG channels and then place the red and green channels next to each other. One way will make it stand out when you cross your eyes and the other way round will make it punch in – so experiment.

Here’s this one:
http://www.flickr.com/photos/24872573@N07/3111272370/

Here’s the Mars crater from earlier
http://www.flickr.com/photos/24872573@N07/3111281580/

]]> By: Charles Boyer http://blogs.discovermagazine.com/badastronomy/2008/12/15/3d-mercury-crater/comment-page-1/#comment-140996 Charles Boyer Mon, 15 Dec 2008 18:26:13 +0000 http://blogs.discovermagazine.com/badastronomy/2008/12/15/3d-mercury-crater/#comment-140996 Given the number of NASA anaglyphs that have been released for Mars, Mercury, etc, I went and picked up a pair of these: www.rainbowsymphonystore.com/pro-x-anaglyph-3d-glasses.html At $10 and the nominal shipping, they are a bargain, and are much more comfortable and clearer than the paper glasses. Given the number of NASA anaglyphs that have been released for Mars, Mercury, etc, I went and picked up a pair of these:

http://www.rainbowsymphonystore.com/pro-x-anaglyph-3d-glasses.html

At $10 and the nominal shipping, they are a bargain, and are much more comfortable and clearer than the paper glasses.

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