Hmmm ... I don't remember the threads about using red/blue glasses. I do remember one using the 'cross your eyes and focus' method. It was pretty simple to set up. After setting up your scene, render and save the image. DollyX the camera so that you get about 1/4 inch horizontal difference from the first render, render the scene and save the image. Take the two images into Photoshop, PSP, PhotoPaint, whatever and paste them side-by-side into a new image. Now the hard part and it does take some practice. Place your line of sight center to the monitor and about 18-24 inches from the screen. Cross your eyes till you see the two images converge into a single image. Focus on the converged image. As you learn to focus, you'll see the converged image in 3D. If you practice at it long enough, you can get to the point where it's very simple to do. Believe me. No this isn't an April Fools joke. :)