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Search Keywords: light material, self-illumination

General

The VRayLightMtl - is a special material provided with the VRay renderer. This material is generally used for producing Self-Illumination effects when assigned to an object. It also allows faster rendering rather than with a Standard Self-Illumination material. Within the VRayLightMtl you can apply a texture map as well to be used as a Self-Illumination source.

Parameters

Color - this is the Self-Illumination color of the material. By Default the Color is set to White (255, 255, 255).

Multiplier - this is the multiplier. It multiplies the Color values and returns after rendering the new calculated ones. Default value: 1.0

Formula: Color: (R,G,B) ; Multiplier: M ; Rendered pixel color: (R*M, G*M, B*M).

Note: You should pay attention that this formula will renturn mathematically exact values only in Linear multiply type in the Color mapping rollout. In any other type, VRay still uses the same formula, but also applies the changes which follow from them and just then returns the rendered pixel value. For more information see the Examples section.

2-sided - checking this option makes the object emit light as double-sided. If off on the back side it will return Black Color (0,0,0). By default - Off.

Texmap - this determines the various texture maps used by the material. In this case if on the map will determine the color.

Notes

• You can use the VRayLightMtl as a light source assigned to an object. Increasing the multiplier will affect the GI solution and will produce more light. Have in mind that on the object the Color can look absolutely the same like pure white (255,255,255) due to higher Multiplier, but the results will be different. For more information see the Examples section.

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