Editing the Graduated Background Color of an OpenGL Shaded Model

The OpenGL shaded model has a graduated background color when Settings > Graduated is enabled. The default colors are blue at the bottom and white at the top of the window.

You can disable the graduated background color by selecting Settings > Graduated from the menu bar. The background of the model window turns white.

If you want to change the bottom or top color of the background, you can edit the PMAP setup file.

1. Open the file ../user/PMAP to Wordpad, for example. The setup file defines the colors the system uses.
2. Find the following lines in the file:
   • pen(256) - defines the bottom color of the model window’s background.
   • pen(257) - defines the top color of the model window’s background.

   The definitions are of the format pen(n)= width R G B. Edit the three last numbers which define the RGB value of the color.

3. For example, change the RGB value of the bottom color:
   pen(256)= 0 50 140 50

   

   The following definition produces an entirely white background:
   pen(256)= 0 255 255 255
   pen(257)= 0 255 255 255

   

4. Save and close the file.
5. Restart Vertex.

Note

• The editing only affects the OpenGL shaded model. The visualized model may have a different graduated background color. See Editing the Graduated Background Color of a Visualized Model