Use the tonemap imager to artistically modify the image's tone mapping using a filmic or a modified Reinhard curve.

Both the strength and the length need to be different from 0, for the toe and shoulder to make a difference.



Enables the imager.

Layer Selection

Selects layers processed by this imager with a glob or operator expression. An imager can use a selection to determine what nodes will be selected to be processed by the imager at render time. The selection is an expression that can consist of multiple selections concatenated by: 

  • or (union)
  • and (intersection)
  • not (negation)
  • and not (exclusion)
  • () for nested scoping


Each selection uses glob patterns and regular expressions and a node will be processed by the imager if the expression matches the node name. By default, glob matching is used unless the selection is in a regex quote, i.e. r'<my_regex>'. For example:

specular or diffuse
not r'sss_(direct|indirect)'
r'color_(mask1|mask2)' or r'mask[34]'



Tonemap mode.

Preserve Saturation

Preserves color saturation for extreme bright values.

This is for values that are beyond 1, if you don’t preserve saturation they go to white, otherwise, they keep their color.

Disabled (default). Rollover image to view enabled.


Gamma curve exponent for midtones value control.


0 preserves the input untouched and 1 applies the full node effect.


Filmic Toe Strength 

Amount of curvature for the tonemap curve in the darker values.

Filmic Toe Length 

Amount of darker values affected by the toe.


Filmic Shoulder Strength

Amount of curvature for the tonemap curve in the brighter values.

Filmic Shoulder Length

Amount in f-stops of brighter values affected by the shoulder.

Filmic Shoulder Angle

Curve slope when white is reached.


Reinhard Highlights

Reinhard photographic tonemap operator strength.

Reinhard Shadows  

Additional tone mapping control for darker values.


LUT filename

Specifies the LUT file to load.

Process Color Space

It is possible to specify a working color space here to convert to the specified space, apply the LUT, and convert to linear or rendering color space again.

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