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10.8.5.1 Simple tonemapper attributes

 
Tonemapper sub-section in the Iray section of the camera Attribute Editor when Simple is selected.
 
 
 
Tonemap Backplate
Enable this attribute to apply tonemapping to the image plane as well.
 
Exposure
Defines the exposure of the overall image.
 
Whitepoint
Whitepoint is a color that will be mapped to ”white” on output, i.e. an incoming color of this hue/saturation will be mapped to grayscale, but its intensity will remain unchanged.
 
Gamma
The gamma parameter applies a display gamma correction. If the image will be displayed as-is, without further post-processing by the application, this value should be set to match the displays characteristic, otherwise disabled by setting to 1.