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Source layer lightness controller

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Alexandru Cirjaliu
Source layer lightness controller
on Oct 21, 2017 at 12:55:56 pm

Hello guys, i need some help, i don't even know how to name it, but i am looking for a way to create a controller based on a *.mov lightness that can be linked with other layer.

So lets say i have an optical flare pre-render with flicker, i want a plugin or expression that turns the lightness into a value slider, because i want to link other effects to this slider value so everything is connected and in flow.

Motion Graphics artist


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Brendon Murphy
Re: Source layer lightness controller
on Oct 21, 2017 at 6:42:16 pm

By "lightness", do you mean transparency in this case?

You could add a null to your comp and put a "slider control" effect on it. Twirl down the transparency setting on your flare. Alt+click the stopwatch, and then click-drag the little spiral icon to "pick whip" it to the control slider. You can now control the transparency of the flare with the slider.

Brendon Murphy
________________
Visual Effects
http://www.brendonmurphy.net


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Walter Soyka
Re: Source layer lightness controller
on Oct 23, 2017 at 5:01:05 pm

You can use the sampleImage() expression to get pixel values from footage.

Check out this example -- it's really close to what you're looking for:
http://www.motionscript.com/design-guide/obscuration.html

Walter Soyka
Designer & Mad Scientist at Keen Live [link]
Motion Graphics, Widescreen Events, Presentation Design, and Consulting
@keenlive [twitter]   |   RenderBreak [blog]   |   Profile [LinkedIn]


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