![]() When disabled, the light does not cast shadows.Īffect Diffuse – When enabled, the light affects the diffuse properties of the materials.Īffect Specular – When enabled, the light affects the specular of the materials.Īffect Reflections – When enabled, the light appears in the reflections of materials.Īffect Atmospherics – Specifies whether the light influences the atmospheric effects in the scene. Shadows– When enabled (the default), the light casts shadows. When this option is enabled the intensity does not decay with distance. No Decay – The light intensity is inversely proportional to the square of the distance from the light (surfaces that are farther from the light source receive less light than surfaces which are closer to the light). The visibility of the light with respect to reflections is controlled by the Affect Specular option. This only affects the visibility of the light when seen directly by the camera or through refractions. When disabled, the source is rendered in the current light color. Invisible – When enabled, the shape of the light source is not visible in the render result. For more information, see the Size example below. Additional light scaling does not affect this parameter. Size – Specifies the diameter of the light sphere, measured in scene units. The intensity of the light depends on its size. 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. 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. Luminous Power (Lumens) – Total emitted visible light power measured in lumens. The light surface appears 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 correct result.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 physical camera exposure. Units – Specifies the light unit of measurement. Intensity – Specifies the strength of the light. Enabled ( ) – Turns the V-Ray Sphere Light on and off.Ĭolor/Texture – Specifies the color of the light.
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