The topics in this section describe rollouts and dialogs whose controls are common to both photometric and standard lights.
The Exclude/Include dialog determines which objects are not illuminated by a selected light, or which objects are considered in a Matte render element.
The Shadow Parameters rollout is displayed for all light types except Skylight and IES Sky, and for all shadow types. It lets you set shadow colors and other general shadow properties.
The Atmospheres & Effects rollout lets you assign, delete, and set up parameters for atmospheres and rendering effects associated with the light. This rollout appears only in the Modify panel; it doesn't appear at creation time.
The Add Atmosphere Or Effect dialog lets you associate an atmosphere or a rendering effect with the light. The list shows either atmospheres, rendering effects, or both. It shows only atmospheres and effects that can be associated with light objects, or that use light objects as their apparatus.
The Advanced Effects rollout provides controls that affect how lights affect surfaces, and also includes a number of fine adjustments and setting for projector lights.
The mental Indirect Illumination rollout provides controls for light behavior with the mental ray renderer. The settings on this rollout have no effect on rendering with the default scanline renderer, or on advanced lighting (the light tracer or a radiosity solution). These settings control how the light behaves when it generates indirect illumination; that is, caustics and global illumination.
The mental ray Light Shader rollout lets you add mental ray shaders to lights. When you render with the mental ray renderer, light shaders can alter or adjust the light's effect.
