## How to take a 3D picture

To make a 3D picture you need to take two pictures of your subject from slightly different positions, to mimic how your two eyes see it. The two pictures are then mixed to produce the 3D effect.

The following diagram shows how to take pictures with this app:

To take the pictures follow these steps:

- Hold the phone as shown in the animated demo above. You can hold it in portrait or landscape mode. Use your right hand if you are right-handed, or your left if you are left-handed. You want to try to keep the phone as steady as possible between the two pictures, so use a table or some other object to support your elbow if possible.
- Take the left picture by tapping on the right side shutter button with a finger on your other hand.
- Now keep your shooting finger where it is and slide the phone to the right until the other shutter button is aligned with it. Make sure you move the phone and not the finger.
- You are now seeing the previous picture superimposed on the live preview on your phone. Before you take the second picture take a moment to align the two images. Pick some object in the scene to use as a reference and align it as best as possible between the two pictures. Objects that are aligned will appear in the plane of the phone screen in the 3D picture. Objects in front of your reference object will appear to pop out of the screen, while objects behind it will appear to sink into the screen. Picking a good reference object is important to maximize the 3D effect.
- Take the second picture, and you are done! Now wait a few seconds for the 3D picture to be created.

## Configuration

### 3D Format

This option determines the way in which the left and right pictures are combined to produce the 3D effect.

- Red/Cyan Anaglyph: The resulting 3D image can be viewed with red/cyan 3D glasses. This is one of the most common types of 3D picture. Red/cyan glasses are cheap and easy to find on Amazon or Ebay.
- Green/Magenta Anaglyph: This method is similar to the one above, but it uses green/magenta 3D glasses.
- Yellow/Blue Anaglyph: Same as the above, but for yellow/blue 3D glasses. Out of the three anaglyph types, this is the one that better reproduces color pictures.
- Crossed stereo pair: This method produces a 3D picture called 'stereo pair'. These type of stereo pairs can be viewed without glasses, simply by crossing your eyes. Note that it takes some practice to learn how to do this, but once you figure it out you can view 3D pictures with the quality and perfect color reproduction. There are plenty of websites with instructions on how to learn this technique.
- Parallel stereo pair: The method produces another type of stereo pair. This one can also be viewed without glasses, but the technique is more difficult to learn, as it requires the viewer to separate the eyes instead of cross them.

### Color Format

- Color picture: The 3D picture will preserve the colors of the original images as best as the selected format allows. For the stereo pair options color reproduction is always perfect, but for the anaglyphs there is always some color loss.
- Black and white picture: The left and right images will be converted to black and white before doing the 3D processing. This is a good option for the anaglyph formats, as it eliminates issues with color reproduction.

### Save Options

- Save 3D Image: If enabled, the 3D image will be saved to a '3D Pictures' album in your phone. This album will appear in the Photos app. If disabled, the 3D image will be displayed on the screen but it will not be saved. The default for this option is enabled.
- Save Left Image: If enabled, the left image will be saved to the '3D Pictures' album in your phone. If disabled, the left side image will not be saved. The default for this option is disabled.
- Save Right Image: If enabled, the right image will be saved to the '3D Pictures' album in your phone. If disabled, the right side image will not be saved. The default for this option is disabled.

Normally you'll just want the 3D image to be saved. If in addition to the 3D image you want to have a 2D version of the same shot, then you can enable either the left or the right image. If you plan on doing more advanced processing to generate your 3D image on your PC then you'll need to save both the left and the right images.