Color – Specifies the self-illumination color of the material.
Multiplier – Specifies a multiplier for the Color. Note that this does not affect the texture map, if specified. For more information, see Default Color and Multiplier Values example below.
Opacity – Specifies a texture to use as opacity for the material. Note that making the material less opaque does not affect the intensity of the self-illumination color. This is so that perfectly transparent materials that nevertheless still emit light can be created.
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VRayLightMtl supports color opacity. This means that it uses the "color" output of textures rather than their "mono" output, in difference from the Opacity slot of VRayMtl materials.
Emit light on back side – When enabled, the object emits light from its back side as well. When disabled, the material is rendered as black on the back sides.
Compensate camera exposure – When enabled, the intensity of the light material is adjusted to compensate the exposure correction from the physical camera.
Multiply color by opacity – When enabled, the color of the light material is multiplied by the opacity texture. Otherwise, the color and opacity act independently (so-called additive transparency).
Displace – Allows you to add a displacement map to the V-Ray Light Material.
Texture – Specifies a texture map to use for the self-illumination color. For more information, see Texmap example below.
