Photoshop: 3D Experiment
DIY 3D pictures—what fun! Get your goggles, if you have them.
Posted on 2004-09-19 23:49 by Jørn Støylen [permalink]
My girlfriend bought Shrek today, and it had an extra disc containing a short 3D movie, and also four pairs of 3D goggles. The 3D effect in the movie sucked big time, for some reason. I think it’s because too much of the original colors are showing to make it work with those red/green kind of goggles.
Since I have a digital camera and Photoshop, I decided to try and make my own 3D picture. I grabbed the first subject I could find, which was my girlfriend’s daughter’s Lucky Ponies. I shot two pictures, moving the camera approximately an eye-distance horizontally between each of them, and aiming at the same spot (the flower on the thigh of the left horsey) both times.
In Photoshop, I pasted each picture into new spot channels (Channels palette menu -> New Spot Channel) and had to assign them colors that worked with the goggles. The green one is easy, the red one much harder.
I also adjusted their positions relative to eachother a bit, so the frontmost pony’s face overlaps in the two pictures (which means it comes all the way to the foreground). Finally I flattened the image (with the RGB channels turned off) so only the two spot channels were used to make the final RGB image—which also got a bit better contrast when this was done.
It’s not perfect, but it was fun! I’m certainly going to investigate making 3D images further.
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It’s even cooler and easier using something like POVRay to raytrace 3D stuff twice at different positions and then do the red/cyan thing. Yes, I’ve done it before. :D
Oh, and I know what you mean about Shrek. The 3D bit is just too short, too. Like it’s an afterthought. Yeah.