Hdr highlight compression effect – Adobe After Effects CS3 User Manual
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AFTER EFFECTS CS3
User Guide
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Apply another instance of the HDR Compander effect to the layer. Make sure that the second instance of HDR
Compander is ordered after (below) any 8-bpc or 16-bpc effects you’ve applied.
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Select Expand Range for Mode for the second instance of the HDR Compander effect.
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Set Gain and Gamma to the same values as set in the first instance of the HDR Compander effect.
A more convenient way to use the HDR Compander effect is to apply the Compress-Expand Dynamic Range
animation preset. This animation preset consists of an expression and two instances of the HDR Compander effect:
The first instance has Compress Range selected, and the second has Expand Range selected. The expression automati-
cally sets the Gain and Gamma for the second instance to be the same as that which you set for the first instance. Insert
whatever low-dynamic-range effects you choose between these two instances of the HDR Compander effect.
HDR Highlight Compression effect
The HDR Highlight Compression effect compresses the highlight values in a high–dynamic range image so that they
fall within the value range of a low-dynamic-range image. Adjust the amount of compression by setting the effect’s
Amount property.
See also