The light automatically takes the scene units scale into consideration to produce а correct result. Units – Specifies the light unit of measurement. Intensity– Specifies the strength of the light. For more information, see the Bitmap page. The rotation of the image can be adjusted from the Bitmap UVW options using the Vertical and Horizontal rotation parameters. A bitmap image (HDRI) connected to the Dome Light automatically uses a UVWGenEnvironment Spherical Mapping Type placement.
