Forums > Jitter

poor fullscreen resolution

April 18, 2013 | 5:09 pm

Please help a new guy. I can’t get high quality fullscreen movie. Using 1920 x 1080 QT mov file as source. Trying to get fullscreen (2560 x 1440) picture – it looks a little pixelated. What inspector settings do I use? Or is the problem else where?

April 18, 2013 | 5:28 pm

a little or a lot? if it’s a little you’re probably looking at the upscaling of 1920×1080 to 2560×1440.
a lot then is probably still set to the default 320×240

April 18, 2013 | 5:38 pm

Thanks for your reply. I guess a little, but it seems to be more pixelation than if I play the source movie fullscreen directly, i.e. double clicking the qt file. That is my concern. The is set to 1920 1080 in the inspector.

April 18, 2013 | 9:48 pm

Quicktime player might be filtering the video to make it smoother and doesn’t. Hard to say without seeing what you’re seeing. How about some screenshots or so?

April 26, 2013 | 12:16 pm


I have the same problem. Did you find a solution??

April 26, 2013 | 3:34 pm

Try "@adapt 1" parameter of the [] object. Next use [matrixinfo] object to check resolution of the matrix produced by []. If resolution is ok – check rendering parameters (interpolation, fsaa, smooth_shader, etc.).

And – of course – you can post your patch. Sometimes it’s simplest way to discuss possible issues.

April 26, 2013 | 3:53 pm


The resolution is ok. 1280/720 codec : Apple proRes 422

Can you tell me more about the interpolation, fsaa, smooth_shader?
My patch is very simple but when I compare my video played with jitter and the video played with quicktime, I can see more pixels.

April 26, 2013 | 4:09 pm

I don’t know, haw you displaying the video. I guess you are using [], [jit.window] and []. Play a bit with antialias and fsaa parameters of [], antialias, interp, and smooth_shading of [], interp and fsaa of [jit.window]. Try switch to "1" all the mentioned parameters.

April 26, 2013 | 4:10 pm

"haw"… hehe sorry.

April 26, 2013 | 4:25 pm

Not all.

It’s my really simple path.

  1. lecteurvideo.rtf
April 26, 2013 | 7:20 pm

Dear Nanor

Try attached basic patch.

  1. movieplayer.maxpat
June 17, 2015 | 7:28 am

Ah…thanks for that info people.

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Forums > Jitter