• Adobe After Effects Expressions

  Attach flares automatically according to hot spots in footage

  Posted by Noa Kotler on June 19, 2012 at 11:51 am

  Hi,

  Does anyone know an expression/script that can automatically attach a flares to “hot spots” in a video footage? and also adjust each flare’s radius/brightness according to the brightness of its “hot spot”?

  Thanks,
  Noa

  Perry Kroll replied 13 years, 10 months ago 3 Members · 4 Replies
• 4 Replies

• 

  Dan Ebberts

  June 19, 2012 at 1:47 pm

  Theoretically, I guess you could do it with sampleImage() but it would be ridiculously slow.

  Dan
• 

  Perry Kroll

  June 22, 2012 at 2:57 pm

  The Optical Flares plugin from Video Copilot can do this. It’s not 100% perfect, but it allows you to sample the bright areas of the frame, add flares, and control how the brightness and color effect those flares.
• 

  Noa Kotler

  June 23, 2012 at 7:06 pm

  Thank you!
  Can you explain how exactly is it done using Optical Flares? Or refer me to a relevant tutorial?

  Thanks,
  Noa
• 

  Perry Kroll

  June 25, 2012 at 4:03 pm

  Yup!

  Here’s a tutorial: Optical Flares Luminance Tracking

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