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This page provides information on the V-Ray Temperature Color Map.

 


Overview

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The VRayTemperature texture map is typically used in conjunction with specific light sources to emulate a specific value, like a Kelvin temperature.This is very useful for different parts of mesh lights, or to map the color of V-Ray Light Material changing from a warm to cool value.

 


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titleUI Path: ||Hypershade|| > Create panel > VRay section > 2D Textures > VRay Temperature

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Basic Parameters

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Color mode – Specifies the mode in which the color is determined:  

Color – The color is directly specified by the Color parameter.
Temperature – The color temperature (in Kelvin) is specified by the Temperature parameter. 

Red – Specifies the value for the Red channel. Note that the full intensity is reached at 1.0 for this parameter (and not 255). 

Green – Specifies the value for the Green channel. Note that the full intensity is reached at 1.0 for this parameter (and not 255). 

Blue – Specifies the value for the Blue channel. Note that the full intensity is reached at 1.0 for this parameter (and not 255).

RGB multiplier – Specifies a multiplier for the color strength.

Alpha – Specifies the value for the Alpha channel. Note that the full intensity is reached at 1.0 for this parameter (and not 255). 

Color – This color swatch can be used to visualize the resulting color. It can also be double-clicked to bring up the standard Maya color chooser.

Gamma – Specifies a gamma correction applied during rendering. This does not affect the Color swatch.

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Common Uses  

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In each example below, the sphere lights have the same VRayLightMt applied to them.  A VRayTemperature texture map is applied to the VRayLightMtl to show various color temperatures between each example image.  The VRayTemperature has Color mode set to Temperature.

In the final image below, five separate VRayTemperature texture maps were used, each with a different color temperature to show a variation. No other changes were made to the VRayLightMt.

 


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Color mode = Temperature
Temperature = 4000.000

 


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Color mode = Temperature
 Temperature = 2700.000

 


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Color mode = Temperature
 Temperature = 10000.000 


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Each mesh lights uses a different VRayLightMt & VRayTemperature,
each with its Color mode set to a different Temperature value

 


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