Intensity (lm) – When enabled, specifies the strength of the light in Lumens to override the intensity specified in the .ies file. See Intensity example below for illustration.
IES Light File – Specifies an .ies file to use for the current light.
Shape – Determines the shape of the light when calculating Soft Shadows. By default, VRayLightIES uses the shape information stored in the .ies file. See Shape example below for illustration.
From IES File - Uses the shape information stored in the .ies file. Point - Treats the light shape as a point light. Circle - Treats the light shape as a planar circular area light. Its dimensions can be specified with the diameter parameter below. Sphere - Treats the light shape as a sphere light. Its dimensions can be specified with the diameter parameter below.
Diameter – Specifies the diameter for applicable light shape types.
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The Diameter parameter is only available when the Circle and Sphere shapes are selected.
