Enabled – Turns on and off the rectangle light. Color – Changes the color of the rectangle light. Intensity – Specifies the intensity of the light's brightness. Disc – When enabled, the shape of the light is changed from rectangle to a disc. The diameter of the disc is controlled by Width value. Invisible – When enabled, makes the light invisible, both to the camera and to reflections. This is useful to prevent bright speckles on glossy surfaces where a ray with low probability hits the extremely bright sphere. Double sided – Specifies whether the light illuminates from both sides. Width – The width of the light source. Height – The length of the light source. Directionality – By default, the light from the Rectangle or Disc light is spread out equally in all directions on the side in which the light points. As this parameter is increased toward a value of 1.0, the spread narrows, making the light more directional. A value of 0 (default) makes the light shine in all directions around the light source. A value of 0.5 pushes the light cone to a 45-degree angle, and a value of 1.0 (maximum) makes a 90-degree light cone. |