I just realized I put this into the nuke tutorials forum for some reason. Not sure why. Hugh, if you want to move this over to the actual nuke forum, thats cool with me.
Hey all, how's everyone doing?
Alright, here's whats up right now:
I'm getting ready to set up an effect where there is a bright pulsing light behind a group of subjects (green screen). I want to take the luminance key of the green screen elements, and take their highlights, and have them pulse with intensity based on the pulsing light behind them. Any thoughts for setting this up?
I'm thinking maybe using something that can measure the intensity in a specific area, then, once its recorded, apply that intensity data to the luma key of the green screen subjects so their luminance pulses procedurally to the background light. But i'm not sure how I should go about getting the data.
I've heard a little about a curve tool or something like that which can measure the brightest and darkest parts of a sequence and use it to animate other properties, but is that what I'm looking for? or maybe something more direct... Not sure, and would love to get some ideas on this.