User Manual

Channel
Select the channel you want to probe. The usual options are:
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Red
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Green
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Blue
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Alpha
Luma
Once a Probe modifier is present somewhere in your comp, you can connect other node’s
values to its outputs as well. The Probe allows you to connect to its values individually:
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Result
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Red
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Green
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Blue
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Alpha
Position X Y
The position in the image from where the probe samples the values.
Probe Rectangle
By default, the Probe samples only the value of a single pixel at its position. By using the Probe
Rectangle mode, you can sample from a larger area of pixels based on the Evaluation method.
Width Height Controls
These determine the size of the area to be probed.
Evaluation
Sets how the pixels inside the rectangle are computed to generate the output value.
Options include:
 Average: All pixel values inside the rectangle are averaged.
 Minimum: The smallest value of all pixels inside the rectangle is used.
 Maximum: The highest value of all pixels inside the rectangle is used.
Value Tab
The Value tab controls the range or scale of the modifier adjustment, thereby adjusting the
sensitivity of the Probe.
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