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Participant
October 22, 2025
Answered

Removing green background from multiple videos at once

  • October 22, 2025
  • 1 reply
  • 112 views

Hi,

I'm filming an object on a green background from several directions at the same time using identical cameras, so I get pretty identical videos. In After Effects I remove the green background (keylight1.2)

My problem is that the software doesn't do it simultaneously, it only works on one video at a time.

I enabled multi-frame rendering, also search for a solution in the web but didn't find one

 

CPU amd 7950x, 128 GB ram

 

Thanks in advance

 

Correct answer ToolfarmJP

I introduce an odd way. You run After Effects as many as you want to with the command line below. You launch one After Effects by Command prompt and launch one more After Effects and you continue to do it without ignoring the warning message. One thing you have to pay attention to is this way consumes the physical memory a lot. You need to check the consumption level of memory by Task manager.

 

"C:\Program Files\Adobe\Adobe After Effects 2025\Support Files\AfterFX.exe" -m

1 reply

ToolfarmJP
Community Expert
ToolfarmJPCommunity ExpertCorrect answer
Community Expert
October 22, 2025

I introduce an odd way. You run After Effects as many as you want to with the command line below. You launch one After Effects by Command prompt and launch one more After Effects and you continue to do it without ignoring the warning message. One thing you have to pay attention to is this way consumes the physical memory a lot. You need to check the consumption level of memory by Task manager.

 

"C:\Program Files\Adobe\Adobe After Effects 2025\Support Files\AfterFX.exe" -m

Participant
October 22, 2025

Thank you!