How to create a RGB shift chromatic aberration creepy video effect | RGB split glitch VFX

Опубликовано: 10 Октябрь 2022
на канале: The FFMPEG guy

538

Today, we show how to create a scarry RGB shift / split chromatic aberration glitch video effect. All parameters shown can be of course fully customized to suit your needs. Enjoy!

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EXAMPLE
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❶ Simple Red and Blue horizontal shift for a 3D effect:
→ ffmpeg -i input.mp4 -vf rgbashift=rh=20:bh=-20 -pix_fmt yuv420p output01.mp4

with:
ffmpeg = Calls Ffmpeg, a free video / audio handling software to …
-i input.mp4 = … read file «input.mp4» and …
-vf rgbashift = … calls the «rgbashift» video filter (vf) to shift (r)ed / (g)reen / (b)lue / (a)lpha pixels (h)orizontally and/or (v)ertically…
rh=20 = … choosing here to offset (r)ed pixels by 20 pixels (h)orizontally…
bh=-20 = … and the (b)lue pixels by -20 pixels (h)orizontally…
-pix_fmt yuv420p = … setting the Pixel format to yuv420p (for compatibility with Windows in my case)
output01.mp4 = … and outputting the result to file «output01.mp4»

BONUS EXAMPLE 02
→ ffmpeg -i input.mp4 -vf colorchannelmixer=.3:.4:.3:0:.3:.4:.3:0:.3:.4:.3,rgbashift=rh=20:bh=-20 -pix_fmt yuv420p output02.mp4

All same as example 1 before, but with:
colorchannelmixer=.3:.4:.3:0:.3:.4:.3:0:.3:.4:.3, = … converts the video to grey before applying the RGB shift video effect.

BONUS EXAMPLE 03
→ ffmpeg -i input.mp4 -vf colorchannelmixer=.3:.4:.3:0:.3:.4:.3:0:.3:.4:.3,rgbashift=rh=20:bh=-20:enable='between(t,1,3)+between(t,4,4.5)+between(t,8,9)' -pix_fmt yuv420p output03.mp4

All same as example 2 before, but with:
enable='between(t,1,3)+between(t,4,4.5)+between(t,8,9)' = … applies the RGB shift effect only between seconds 1 & 3 and seconds 4 & 4.5.

BONUS EXAMPLE 04
→ ffmpeg -i input.mp4 -vf colorchannelmixer=.3:.4:.3:0:.3:.4:.3:0:.3:.4:.3,rgbashift=rh=20:bh=-20:enable='between(t,1,3)+between(t,4,4.5)+between(t,8,9)',random -pix_fmt yuv420p output04.mp4

All same as example 3 before, but with:
random = … randomizes the order of outputted frames to create a more erratic effect.
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→ Catch up with the FFMPEG guy Channel
• ALL THE VIDEOS FROM THE CHANNEL
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MUSIC
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→ Taste - TrackTribe
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An FFMPEG question?
Ask the FFMPEG guy
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