• Adobe After Effects

  AE light intensity controlled by fire footage

  Posted by Wilhelm Hagberg on November 15, 2021 at 4:29 pm

  Hi all. I’m making an animation with some dolls sitting around a campfire on a dark beach. The fire is sctual footage of a camp fire. Now, I would like to see the flickering of the fire reflect in the faces of the dolls. I think that AE could analyse the brightness of a portion of the fire layer and connect this to the intensity of a point light. But I totally forgot how! 😢 Much grateful for your input!

  

  Wilhelm Hagberg replied 4 years, 8 months ago 2 Members · 2 Replies
• 2 Replies

• 

  Walter Soyka

  November 15, 2021 at 5:45 pm

  You can do this with a sampleImage() expression.

  Here are a couple of quick examples that should get you started:

  http://www.motionscript.com/design-guide/sample-image.html
  http://www.motionscript.com/design-guide/obscuration.html
• 

  Wilhelm Hagberg

  November 18, 2021 at 1:57 am

  Great, thank you!

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