The Options dialog, Lighting option provides light sources for
illuminating graphics.
To open this dialog, select Options from the Tools menu, and then
click Lighting on the tree. Figure 1. Options dialog – Lighting
There are two lighting modes: One Light and Multiple Lights.
One Light
The controls in this dialog specify the position, shininess and speculiarity of the
light. Any combination of light properties may be used to light the graphic. Select
the Preview check box to immediately update the graphic when
manipulating light controls.
Direction
The direction of the light is defined by
moving the horizontal and vertical slide controls.
Specular
The specular color defines the color reflected
back on shiny surfaces. Moving the slider bar from low to high controls the
degree of shininess. To disable specular highlighting, set the specular
color to black.
Color
To change the color of the graphic, click on a color box, select a new
color from the palette, and click OK.
Shininess
Use the slider bar to set the shininess (0-128).
Preview
Activate the check box to preview the changes
in the graphics area.
Multiple Lights
Use the standard placement of multiple lights. The following option is
available:
