Lighting Toolbox
The Lighting toolbox allows adjustment of how graphic objects are illuminated.
The default lighting provided by Model Viewer is a headlight, which illuminates
objects from the direction of the viewpoint. The default setting is adequate for
most cases, and lighting adjustment is often unnecessary.
- If the Lighting toolbox is not visible, display it by clicking
the Toolbox menu and selecting Lighting.
- Clicking Default will
assign default settings to the selected tab. Default settings are given in
parentheses below.
- The Lights tab allows you to:
- Turn on the headlight by checking the Headlight option. (By default,
the headlight is turned on.)
- Turn off the headlight by unchecking the Headlight option.
- Set the headlight intensity. (1)
- Turn on the auxiliary light by checking the Auxiliary Light option.
- Turn off the auxiliary light by unchecking the Auxiliary Light option. (By default,
the auxiliary light is turned off.)
- Set the auxiliary light intensity. (0)
- Set the vector direction from which the auxiliary
light illuminates graphic objects. The vector components (x, y, z) may vary
from -1 to 1. For example, if x=
0, y=
0, z= 1, the
auxiliary light will shine from the positive z axis towards the negativez axis.< /li>< /li>< /li>
- The Surface tab allows you to set the surface properties
of graphic objects. These properties are:
- Diffuse: This parameters is currently not adjustable and is set to 1.0.
- Ambient: Increasing this parameter above 0 gives
surfaces a "washed out" appearance and reduces the shading. Setting this
parameter to the maximum value of 1 causes surfaces to appear white. (0)
- Specular: The amount of reflected light. (0)
- Specular Power: The surface shininess. (1)
- The Background tab allows you to:
- Set the background color to white by selecting the White option. (White
is the default background color.)
- Set the background to any color by by selecting the Custom option and the specifying the red, green,
and blue components of the color.