![]() The intensity of light does not depend on its size. Radiant Power (W) - Total emitted visible light power measured in watts. The intensity of light depends on its size. Luminance (lm/m²/sr) - Visible light surface power measured in lumens per square meter per steradian. A typical 100W incandescent light bulb emits about 1500 lumens of light. The luminous power (lumens) is the total emitted visible light power, also measured in lumens. The light's surface color appears as given when seen directly by the camera. Using correct units is essential for working with physical camera exposure. ![]() Default (Scalar) - The color and multiplier directly determine the visible color of the light without any conversion. The light automatically takes the scene units scale into consideration to produce a 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.
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