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This page provides information about the Light Rectangle in V-Ray for Grasshopper.
Overview
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Input Parameters
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On (Boolean) – Enables or disables the light source.
Base plane (Base plane) – The rectangle light base plane, where its geometry is positioned and orientated along.
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Intensity (Number) – Provides an option to control the light source intensity. Calculated in the specified units.
Intensity Units Units (Integer) – Specifies the light unit of measurement. Using correct units is essential when working with physical camera exposure. The light automatically takes the scene units scale into consideration to produce correct result for the scale being worked in.
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U/V Size (Number) – Controls the U/V size of the light measured in scene units.
DirectionalityDir (Number) – Specifies the spread of the light beam. Value of 0 emits light equally in all directions. Increasing the value makes the light beam more narrow and concentrates it in one direction.
Output Parameters
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Add Light (Generic Data)– Light output that can be connected to a V-Ray Render component.
Example
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Light Rectangle Light component connectionconnection. Note the toggled off Simple Light Rig plugged that an Environment component with a black color plugged in the GI input parameter is used as an override to turn off the default Environment lighting. If there is no Light Rig Environment input in the Render component V-Ray Render component it will always creates one internally create one.
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