I’m sure you’ve seen those red and blue 3D glasses either at a movie, in a picture book, or maybe in science class. Here’s a quick tutorial I put together which will show you how to make your own 3D images to view with those glasses…
Basically, you have to have two images: a left and a right. This works in the same way as binocular vision. You can judge depth because your brain has a left and right view which it combines (provided you have two working eyes).
I made this image in Maya. I created a camera with a target it aims at. I rendered out a left image, moved the camera sideways (on the X axis), and rendered the same image, giving me a right view.
Once you have your two renders (or images if you’re not using a 3D package), open them up in Photoshop or similar program. What you need to do is to take the Red Channel from the right image, and replace it with the Red Channel from the left image.
If you put on your 3D glasses and look at the image, you should now see some depth. Here’s the resulting image…
Enjoy your adventures in the third dimension!