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.

Enable

Enables the imager.

Mode

Mode

Tonemap mode.

Filmic (default)
Reinhard

Filmic

Filmic Toe Strength 

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

0 (default)
0.5
0.9
0 (default)
0.5
1

Filmic Toe Length 

Amount of darker values affected by the toe.

0
0.5 (default)
1

toe_strength:0.5

0
0.5 (default)
1

Filmic Shoulder Strength

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

0 (default)
0.5
1

0 (default)
0.5
1

Filmic Shoulder Length

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

0
0.5 (default)
1

0
0.5 (default)
1

Filmic Shoulder Angle

Curve slope when white is reached.

0.1
0.5
1

0 (default)
0.5
1

Reinhard

Reinhard Highlights 

Reinhard photographic tonemap operator strength.

1 (default)
0.5
0

1 (default)
0.5
0

Reinhard Shadows  

Additional tonemapping control for darker values.

0 (default)
0.5
1

0 (default)
0.5
1

Saturation/Gamma

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

Gamma curve exponent for midtones value control.

1 (default)
2.2
3

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