Lighting Overview

You can adjust the direction, intensity, and color of light in the shaded view of a model. You can add light sources of various types, and modify their characteristics to illuminate the model as needed.

You can change the appearance of the model to enhance or reduce the effect of lighting properties.

Light Types

There are several types of light source:

• Ambient light. Illuminates the model evenly from all directions. In a room with white walls, the level of ambient light is high, because the light reflects off the walls and other objects.

• Directional light. Comes from a source that is infinitely far away from the model. It is a columned light source consisting of parallel rays from a single direction, like the sun.

• Point light. Comes from a very small light source located at a specific coordinate in the model space. This type of light source emits light in all directions. The effect is like a tiny light bulb floating in space.

• Spot light. Comes from a restricted, focused light with a cone-shaped beam that is brightest at its center. A spot light can be aimed at a specific area of the model. You can adjust the position and distance of the light source relative to the model, and you can adjust the angle through which the beam spreads.

To add, delete, turn off, or modify lights, see Basic Lighting Controls.

System Lighting Defaults

By default, Lights, Cameras and Scene in the FeatureManager design tree contains one Ambient light and three Directional lights.

• You can turn the Ambient light on or off, but you cannot delete it or add additional Ambient lights.

• You can turn the Directional light sources on or off, or delete them. You can also add additional Directional light sources.

• The maximum number of light sources in any document is nine (the Ambient light and eight others in any combination).