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What is the name and cause of this glitch?
Good afternoon.
I´m having some problems and I wish you folks could help me find the solution to.
I rendered a 3840×720 video in After Effects. The render was made in Adobe Media Encoder with the following setup (h.264):
The render produces an OK file but when I uploaded it to my Digital Signage SAAS Media service, Navori, it makes some glitches:
What´s the tecnical name for this glitch (fields?!) and what is the solution for getting rid of it?
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4 Replies
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Kush’s gauge suggests that you use a target bitrate of about 17.5 Mbps and a maximum bitrate of about 34.8 Mbps for full quality render at your frame size and rate, but you can probably get away with a target of 8.7 Mbps and 17.4 as your maximum. The point being that for the size of your comp i believe your bitrate is too low.
Doyle Lewis, Assistant Videographer
thinkck.com
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Are you referring to the horizontal lines that appear to cut through the image? That’s usually called “tearing.” It’s a result of the screen refresh rate and the frame rate of the video being out of sync.
You see this more commonly in video games where there is a feature called “V-Sync” which locks the display of frames to the refresh cycle of the monitor to eliminate the tearing.
Here’s some more information:
https://en.wikipedia.org/wiki/Screen_tearing
Darby Edelen
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Thank you very much for both answers.
Darby, do you have any hints for getting rid of it?
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Use a video player that supports v sync and use a frame rate that divides evenly into the display’s refresh rate (e.g. 30fps for a 60Hz display)
Darby Edelen
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