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Lut highlights
Hi, When working on r3d I do my main exposure adjustments prior to the LUT. Sometimes I need a good key for adjusting highlights and therefore working after the LUT. Some adjustments (like highlight adjustments) will not work properly after the LUT so Im getting stuck with a bad key. How do you deal with that?
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8 Replies
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Using a second input or a parallel node
A slice of color…
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It does not help because the key need an input from after the LUT.
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Anyone?
I need to make a key from a node after the lut but to adjust the keyed part properly I need to do have access to the source or a node prior to the LUT.
Stig
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What is the LUT for?
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Try using a Parallel node. You can select what node is the source for the node, or even the main video source as well.
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Or you can just add a node, feed the input from the source, and only use this node to output a key. This is assuming you don’t want to mix back any of the original image. If you need to mix back any of the original image, you can use a layer mixer as well.
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Hi, I did not explain myself good enough. The key need its source from a node after the LUT (to have s clean key). To adjust this key I need the source from the node before the LUT. These sources need to be connected somehow.
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It did work by doing this:
– Create a corrector node after the LUT to have a clean key
– Create a parallel node, but change the input to a node prior to the LUT
– Feed the key into the parallel node
– Invert the key or add an outside node to adjust.This way it will give a clean key (made from after the LUT) and all the corrections will affect the data prior to the LUT but feed it back later in the chain.
Stig
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