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The V-Ray Light Rectangle, or area light, is a planar light source with the shape of a rectangle or a circular disc. Rectangle lights are useful for simulating man-made light sources in an interior environment, such as lamps. A rectangle light can one of two possible shapes: plane or disc.
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UI

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||Modes Tab|| > V-Ray Assets > VRayLightRect

||Content Browser|| > VRayForUnreal > Content > BP > Actors > VRayLightRect

 

VRayLightRect Blueprint

 

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Paths

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The VRayLightRectBlueprint Actor is accessible through the Modes

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> V-Ray Assets > VRayLightRect or from VRayForUnreal > Content > BP > Actors > VRayLightRect in the Content Browser Tree. Select the Blueprint and drag and drop it in the level.

 

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||Modes Tab|| > V-Ray Assets VRayLightRect

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 ||Content Browser|| > VRayForUnreal > Content > BP > Actors > VRayLightRect

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For the VRayForUnreal folder to be visible, you first need to enable Show Engine Content and Show Plugin Content in the View Options of the Content Browser.


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VRayLightRect Settings

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General

Enable – When enabled (the default), the light contributes to the lighting in the level. Disabling it will stop the contribution of the light in the environment.

Is Disc – The VRayLight takes the shape of a planar disc.

Length/ Radius – The length of a Plane light source/radius of the Disc light source, measured in scene units.

Width – The width of the Plane light source, measured in scene units.

Multiplier – Specifies the intensity multiplier in lumens of the rectangle light.

Cast Shadows – When enabled (the default), the light casts shadows. Turn this option off to disable shadow casting for the light.

Color – The color that the light emits.

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