Help to reverse-engineer logo stroke reveal

Question

A number of years ago my company had a third party create some brand animations. I've now been tasked with taking a part of one of those animations and extending it as a longer logo hero loop for a webpage.

They want the 'C' in the video below to animate on as it currently does, but instead of animating directly off, as it currently does, it should stay at full size but stay animated with a shimmery solar atmosphere sort of vibe.

Fortunately, I have the original AE project file supplied by the external company. Unfortunately, it turns out the layer shown above is a png sequence.

Do I need to re-build this from scratch to have the control I need, or is there a way to add a shimmery, smoky, solar atmosphere-like motion to a freeze-frame of this PNG that would match the look and feel of the existing animation?

P.M.B · Accepted Answer

Only way to do it from an image (png) would some effect that's has an option to based itself on luminance values.  Check to see if AE vanilla particle effects have a luminance option.  Also check out the free "Saber" plug-in from Video Co-Pilot.  https://www.videocopilot.net/blog/2016/03/new-plug-in-saber-now-available-100-free/

Mylenium · Answer

You will likely have to rebuild it, which shouldn't be that difficult, given that it's essentially just multiple layers of Trapcode 3D stroke with lots of blur. Just wobbling up a still frame with Turbulent Displace will inevitably give a different look as the thin lines degenerate and will end up having varying thicknesses and amounts of blur. investing the effort now will no doubt also help on future projects.

Mylenium

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