Lights
Without specific settings, the Unity default Light component lets us define RGB non polarized lights. See the Unity interface overview for details on the Unity components. To create a spectral and/or polarized light, you must add the UVR Light Settings component to your light.
The Light Settings component defines the spectral intensity and polarization of the light, the options to set them depend on the type of the light it defines. See the Light Intensity and Light Polarization sections for more details.
Lights of type "Area" have an additional section called "Area Light Geometry" that provides additional settings for the geometry. Area lights in Predictive Engine can be defined on custom geometries, not just rectangles and discs as in Unity. See the Area lights geometries section for more details.
Unity Tutorial : Introduction to Lighting and rendering (Section 9 : Light types)
When possible, the Unity light intensity and color will be automatically modified to fit the Predict definition of the light. If you need to define these values separately, you can disable the "Fit Unity Color (and/or) Intensity" toggle in the UVR Light Settings component.
Example of Point light
Example of Uniform Area light
Example of Directional light