S3D Information

2K, 3K and 4K Right and Left versions S3d_left_right

These high resolution files give you the most flexibility and resolution. They are designed for professionals who want to keep all their options open. The right and left sides have been adjusted to match color and geometry. These fixes can leave black edges depending on the kind of adjustments applied. We expect you, the user to crop and position as you see fit. These images come in their basic non-aligned state, ready for you to adjust parallax to best match your project.

HD Right and Left versions S3d_left_right

These images contain all the color and geometry adjustments applied to the K versions, plus they have been aligned for optimum convergence. Finally, they were cropped and scaled down to HD size. These are the best quality images for HD editing.

HD Side by Side Stereo Pair S3d_stereo_pair

This version contains the HD Right and Left versions squeezed onto one 1920 x 1080 frame. This is the most common S3D format accepted by S3D TVs available everywhere. It is compatible with most editing programs as well. You may object to the fact that this format cuts the horizontal HD resolution in half. Although true, this does not seem to be a problem for most applications and is hardly visible in most 3D TVs. Regardless, if you purchase the Side by Side version, the full resolution HD Right and Left versions are available to you as well for no extra cost.

Anaglyph preview

Artbeats offers an anaglyph version for previewing our S3D clips. The Anaglyph image shows both right and left images superimposed with red and blue filters to differentiate the two. You will need Red/Blue or Red/Cyan glasses to view this version. See Figure 1 example below.


Side by Side preview

To view the clip in 3D check the Side by Side version for cross-eyed viewing. To help you view using this method, hold your finger about 6" in front of your face while looking at the stereo pair in the background. Bring your eyes together to focus on your finger, then slip the finger away. The center image should appear in 3D!


Interocular Separation

This is the distance separating the right and left camera lenses, also known as interaxial. The wider this distance, the more exaggerated is the stereo effect. Camera separation wider than the human eye creates Hyper Stereo. Artbeats uses wide interocular separation to give stereo depth to distant objects. Aerials are a good example where hyper stereo is helpful. See interocular separation illustrated in Figure 2 to the right.

Maximum Display Size

This is the suggested maximum screen size (measured diagonally) on which to display a clip. It is calculated based on the Positive Parallax Percentage. A percentage of 1% is generally accepted for movie screens up to 42'. Higher percentages are best displayed on smaller screens. The purpose is to keep the background parallax no wider than twice the human eye width. Wider parallaxes can make for uncomfortable viewing and yield headaches after a short time.

Positive Parallax Percentage

When the right and left stereoscopic images are compared with each other, objects will appear to shift horizontally depending on their depth in the scene. This shift is called parallax. The parallax of background objects (or those behind the screen plane) is called positive parallax. The parallax of objects floating in front to the screen is called negative parallax. The Positive Parallax Percentage is this amount compared to the width of the scene. The image below shows the background parallax as compared to the whole. In this case, the percentage is 1.5 and suitable for a 30' screen. See Figure 3 below.