Radiance (W/m^2/sr) – Visible light surface power measured in watts per square meter per steradian. A typical 100W light bulb only emits between 2 and 3 watts as visible light. This is not the same as the electric power consumed by a light bulb for example. The intensity of the light does not depend on its size. Radiant Power (W) – Total emitted visible light power measured in watts. The intensity of the light depends on its size. Luminance (lm/m^2/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 intensity of the light will not depend on its size. Luminous Power (Lumens) – Total emitted visible light power measured in lumens. The light surface will appear with the given color in the final image when seen directly by the camera. The light automatically takes the scene units scale into consideration to produce the correct result for the scale being worked in.ĭefault (Scalar) – The color and multiplier directly determine the visible color of the light without any conversion. Using correct units is essential when working with the VRayPhysicalCamera. Units – Specifies the light unit of measurement. Intensity – Specifies the strength of the light.
The light uses the texture's alpha as opacity map. When using photometric units, this color is normalized so that only the color hue is used, whereas the light intensity is determined by the light Intensity. Enabled ( ) – Turns the V-Ray Spot Light on and off.Ĭolor/Texture – Specifies the color of the light.
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