Anaglyph Views

Anaglyph views achieve a 3D look with red and blue glasses. The red lens goes over the left eye, and views an image in red that is displaced to the left as a function to elevation (for vertical views) or distance out (for perspective views).

Anaglyph photographs go back to the 1850's.

Anaglyph maps:  Right click on the map, and pick the "3D map options" choice from the pop up menu.

  • Stereo Anaglyph: creates a new reflectance map with a shift of the red bit plane. You can change the maximum shift, as well as the reflectance parameters, by right clicking on the map display.
  • Stereo Anaglyph/Merge: uses the image on screen, and shifts the red bit plane to the left. This may or may not be effective depending on the imagery displayed. You will be asked for a maximum shift.

Anaglyph perspectives: select this option when setting the perspective parameters. This can be done with either a reflectance or a drape perspsective.  Select the anaglyph option on the Stereo tab of the perspective options form.

  • Anaglyph displace: one view, with the red bitplane shifted to the left. You set the maximum shift for the foreground, which decreases to a minimum at the back of the view.
  • Anaglyph, two scenes: two separate views are drawn, each shifted a specified distance from the observer's location. The red view is shifted to the right and the blue/green view is shifted to the left.  You can adjust the eye separation; the correct distance will depend on the resolution of the DEM and overlaid imagery and the distance to the main features in the view.  Depart from the default value only carefully, and decreasing the separation is probably better than increasing it.

Sources for glasses.

Alternative 3D viewing

Last revised 11/26/2017