Sirds Help

# Learn about Sirds

You can use Sirds to create a Single Image Random Dot Stereogram (SIRDS) or Single Image Stereogram (SIS) from a depth map image.

### Creating a SIRDS or SIS image
| 1. Choose the "New" menu item from the "File" menu or press command - N to create a new Sirds document. 2. Drop a depth map image onto the Sirds document window, or choose one of the sample depth maps from the "Import" menu item from the "File" menu. That's all. You can change the color or shape of the random pattern, or use any pattern image you like. Supported depth map and pattern image file formats: JPG, GIF, HDR, TIF, PSD, PICT, PNG, BMP, and SGI.

### Viewing a SIRDS or SIS image (Wall-eyed view)
Two marks. You are looking at the screen surface. Three marks. Your eyes are at the proper stereo view angle. Four marks. Not looking far enough. Four marks. Looking a little too far. | Once you get used to how to view sterograms, you can view almost any stereograms without the stereo view guide. You can turn on the stereo view guide by clicking the "Show Guide" checkbox in the drawer or pressing command - G. Try to view a few inches behind through the screen surface. And the two stereo guide marks, "/" and "\" becomes three and the center mark becomes "X". If the center mark doesn't align horizontally, your eyes are not horizontally aligned to the stereogram image. When you see three marks, you are looking at the deepest level of the stereo scene. Slowly move your eyes from the guide to the actual stereogram image and give your eyes and brain some time to process the image to visualize the stereo scene.

### Viewing a SIRDS or SIS image (Cross-eyed view)
Two marks. You are looking at the screen surface. Three marks. Your eyes are at the proper stereo view angle. Four marks. Not looking near enough. Four marks. Looking a little too near. | Once you get used to how to view sterograms, you can view almost any stereograms without the stereo view guide. You can turn on the stereo view guide by clicking the "Show Guide" checkbox in the drawer or pressing command - G. Try to view a few inches behind through the screen surface. And the two stereo guide marks, "/" and "\" becomes three and the center mark becomes "X". If the center mark doesn't align horizontally, your eyes are not horizontally aligned to the stereogram image. When you see three marks, you are looking at the deepest level of the stereo scene. Slowly move your eyes from the guide to the actual stereogram image and give your eyes and brain some time to process the image to visualize the stereo scene.