Mon, Nov 18, 4:10 PM CST

Red/ Blue anaglyph

Vue Fantasy posted on Mar 10, 2009
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Description


Figures done in Poser and the rest done up in Vue. You need the red/blue 3D glasses (if you have kids and children's DVD's you probably have a pair laying around). Red goes over your left eye. If it looks funny, turn your glasses around. People often ask how this is done. You can Google "making anaglyphs" to learn more about it, but here it is in a nutshell: The basic idea is that you're actually rendering two pictures of the same unchanging scene at two slightly different angles. You render a scene. Then slide the camera directly to the right (or left) just a little bit. Don't tilt the camera, just "strafe" sideways with it. Then take a second render. How far you move the camera depends on how close your camera is to the subject, but generally you don't move it much at all. In real life it'd be about 2-3 inches for the types of renders most people do here. To put it another way, move the camera about the same distance as exists between your eyes. The farther away from the camera your subjects are, the greater the distance between the camera movements when doing the second render. I could have moved the camera father and got a little more separation and depth, but it was approaching problems. If you move them too far, you get "ghosting", and things don't line up. That's why you used to get headaches in 3D movies at the theater. They didn't set the parallax (distance between the cameras) correctly. Now that you've got a scene rendered twice from slightly different angles (as if you rendered the same scene from the viewpoint of each of your eyes), you go into Photoshop and mess with the levels. I won't go into that because there's plenty of online tutorials. You turn one red, turn the other blue, lay one on top in "screen" blending mode, and that's all there is to it. If you're familiar with anaglyphs you'll easily be able to spot the flaws in this one, including the stereo window and also that I could have squeezed more depth from it. Some of the depth got lost when saving for web-safe colors. As usual, I spent so long on setting this up that when I was done I was much more tolerant of little problems and just let them ride. More info than you wanted to know? Sound confusing? If so, then it's because I'm lousy at explaining. It's actually very simple to do and loads of fun to play around with. There's tons of tutorials on the internet that deal with anaglyphs as they relate to photography. It's exactly the same process, whether you take a picture or make a render. Give it a try. There's a few people around here that do anaglyphs, and we'd all love to see what you come up with!

Comments (2)


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Killebrew

1:00AM | Thu, 02 April 2009

Been about a month and no comments. Heh. You folks really need to find some 3D glasses.

kinkyboytwosixfive

5:07AM | Tue, 02 March 2010

Well I don't have the 3D glasses ... yet ... but Actually by relaxing your eyes and crossing them then allowing the 2 images to overlap somewhat the image appears more 3D ... an old trick from those old posters in the 70's ... Now I need to find some 3D glasses cause it is a wonderful image .... Your attention to the details of your artwork is extensive and rendered beautifully so I Can't wait to see the details of this one.


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