mr Shader Element Parameters Rollout

Specifies the shader. Also adjusts brightness for non-HDRI applications, and specifies whether to render shadows.

Shader
The shader to render as an element. Click the button and then choose a shader or material from the list in the Material/Map Browser. Typically you’d want the element to output a shader in the scene, so you’d make sure Browse From is set to Selected or Scene.
Multiplier
Scales the brightness of the rendered output.
Apply Shadows
When on, the output includes shadows cast on the surface.