Shader: "perceptual"


Synopsis A tone mapping shader that uses a model inspired by the human visual system to define a mapping from world luminance values to (limited range) display luminance values.

"exposure" Description: Adjusts the overall intensity of the input image. Higher values will produce a brighter image, lower values will make the image darker.
Hint:[-2.0, 2.0]
"contrast" Description: Adjusts the contrast of the input image. Higher values will produce an image with more contrast (and typically darker), lower values will reduce the contrast in the image (and usually make it brighter).
Hint:[-0.5, 0.5]
"saturation" Description: Adjusts the image colour saturation. Higher values produce more saturated images. The default value is 1.
Hint:[0.8, 1.0]
"shift" Description: Adjusts the brightness of the output image by simply shifting the tone curve up or down. Values outside of the range 0 to 1 will be clamped.
Hint:[-0.2, 0.2]
"brightness" Description: Controls brightness and contrast of the output image by increasing the brightness of the dark tones. Compared to the exposure parameter, this parameter is useful to lighten 'shadow' regions. Using a non-zero value will make the image brighter and reduce the contrast.
Hint:[0.0, 0.35]
"auto setup shader" Description: The post-process shader used to automatically set up the parameters for the tone mapping shader.

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