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The Light Trim node
Light Trim Node Introduction
This node emulates film scanner light trims. By design, this node works best with logarithmic data, such as the images stored by Cineon, Arri, or Blackmagic RAW files. When logarithmic data is provided, the Light Trim node can be used to increase or decrease the apparent exposure level of the image.
Inputs
There are two Inputs on the Light Trim node: one for the 2D image and one for the effects mask.
— Input: The orange input is used for the primary Log 2D image that gets its exposure adjusted.
— Effect Mask: The blue input is for a mask shape created by polylines, basic primitive shapes, paint strokes, or bitmaps from other tools. Connecting a mask to this input limits the exposure change to be within the pixels of the mask. An effects mask is applied to the tool after the tool is processed.
Basic Node Setup
The Light Trim node is placed after a LOG clip but before the Log clip is converted by a Cineon LOG node.
A Light Trim node used to adjust exposure on a LOG clip
Inspector
Light Trim controls