Passive Emiter: The emitter will not cast light into the scene but one will be able to still see the emitter 'lit'. A value of 683 lm/W corresponds to lights without energy loss. Power > Efficacy: Defines the energy loss of the emitter. Power > Units: Defines the units that will be used for the given power. Power: Defines the power of the emittance along. Shadow > Radius (m): Defines how soft the shadows will be. Shadow > Soft Shadows: Definges whether the light will have soft shadows or not. Light properties are divided in five categories which are: General, Emitance, Custom Light Evaluation and Container. Depending on the light type, the appropriate controls are shown. When a light is clicked in the Rhino viewport, the Thea light properties page is shown in the properties page. Thea light properties can be configured from a separate dialog. Assigning materials with Content Browser.Assigning Color, Bitmaps and Procedurals.
