How To Make A 3-D Image?
July 6, 2006 6:23 AM   Subscribe

All of my searches have led me only to instructions for computer graphics or stereograms, so I turn to you, MetaFilter. Tell me, how do I make an old-school red-and-blue 3-D image I can use with those cool old glasses?
posted by eustacescrubb to Media & Arts (7 answers total) 2 users marked this as a favorite
 
Many Google returns for Stereoscopic photo red blue.
posted by Yorrick at 6:32 AM on July 6, 2006


Might want to check out this stereo3d thread which has links to a few anaglyph filtering programs.
posted by samsara at 6:33 AM on July 6, 2006


Those are called "anaglyph" 3-D images. Try searching for that. There are tons of tutorials out there.
posted by drew3d at 6:34 AM on July 6, 2006


They are a type of stereogram, so far as I understand the term. You're probably getting noise about so-called single-image stereograms like the "magic eye" posters that became so popular about ten years ago. Though I would think an anaglyph is also a single-image stereogram of a sort.
posted by Songdog at 7:19 AM on July 6, 2006


It's not very hard at all, I've done it in the past with photoshop (with source images from 3ds max).

One of the lenses of your glasses is red, and one is blue. Assuming the blue is on the left you take your left image and black out the red and green channel. Then you take your right-hand image and black out the blue and green channel. Then you take the two images and overlay them.

If you have red cyan glasses that should still work, although you could experiment with blanking just the red channel for the left side rather then red and green.
posted by delmoi at 9:38 AM on July 6, 2006


Actually, the word which will give you the most Google hits is "anaglyphic".

I generally make one image red, and the other both green and blue.

Of course, they have to be stereo pairs to work properly. If not, you won't get anything interesting.
posted by Steven C. Den Beste at 11:07 AM on July 6, 2006


Response by poster: I just wanted to say that though no one answer was "the best", the lot of you got me on the right track. Searching on Google based on info in this thread led me to .
posted by eustacescrubb at 6:52 AM on August 8, 2006


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