Select the type of coloring with which the VRML surface should be colored.

• Shading: Colors the plot with n shades of one color. The base-color is specified by the amount of red, green and blue it contains; enter these values in the labeled input fields (range: 0.0-1.0). The number of shades used, n, can be defined in the Shade Count input field.
• Flat Color: Colors the plot with a single, flat color. The base-color can be specified in the red, green and blue input fields (range: 0.0-1.0).
• Rainbow: Colors the plot with a rainbow of color, ranging from purple for the minimum intensities to red for the maximum intensities.

• Color Spread: Defines the percentage of the intensity range over which the colors/shades should be spread evenly. By default, the colors are spread evenly from the minimum intensity to the average intensity; all points above average are colored with one color. (range: 0.0-1.0)
  - 1.0 means spread the colors/shades evenly over the full intensity range.
  - 0.5 means spread the colors/shades evenly over half the intensity range.

• Color Shift: Defines the percentage by which the even color spread should be shifted up or down on the plot surface. (i.e.- 0.5 means start the even color spread at the minimum intensity value plus half the intensity range; below that point, all points will be one color/shade.)

• Peak Highlighting: This option is useful for adding contrast to the surface. When checked, the peaks of the plot will be colored with the darkest color in the shade or rainbow color-array.

Use the Light Intensity input field to enter the amount of light to put on the surface; a simple, VRML spotlight-node is used to produce this light.