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This page provides information on the V-Ray Sphere Light.
Overview
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The V-Ray Light Sphere is a V-Ray light source in the shape of a sphere. It is a good general-purpose V-Ray light for illuminating scenes to simulate real-world point light sources such as lamp bulbs.
The sphere can be scaled to any size and emits light outward in all directions.
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Example: Sphere Radius
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This example shows how the light changes with the size of the sphere light. The light distributes in the scene depending on the size of the sphere. Larger radius means more emitted light. The intensity of the light is a constant.
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Shadows
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Textures
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Decay
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The Decay parameters determine how the light fades in and out. The Near Decay determines how light fades in. The light isn't at its maximum value at its source, but instead gradually increases until it reaches the Near End. The Far Decay determines how light fades out. The light isn't at its maximum value at its end, but instead gradually decreases after the Far Start.
Decay option is useful for creating hotspots or controlling the length of a "God Rays" effect created with Environment Fog.
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Advanced
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