Forums > MaxMSP only showing top pixel (Windows 7 only – not mac)

Jun 17 2013 | 5:56 am

Guessing it has something to do with opengl.

This patch is working on my macbook pro but not on the Windows 7 performance machine.
Any Ideas?

-- Pasted Max Patch, click to expand. --


Jun 17 2013 | 11:54 am

i can’t reproduce.
what graphics card are you using?

Jun 17 2013 | 11:59 am

It’s a Matrox M-series. I’m not at the windows machine right now.

But one clue is, that jit.window shows only the topmost pixel of the file but it is stretched all the way down the screen. If I set the @noaccel 1, it works. This apparently disables opengl acceleration. When I put the video stream into the and use to render the image to the jit.window it again only shows the topmost pixel. This time @noaccel 1 in the jit.window has no effect. Probably, because we are now in the opengl world, right?

I have downloaded the latest driver for the graphics card.

Any thoughts?

Jun 17 2013 | 12:03 pm

yeah, i’m not entirely sure those cards support opengl hardware rendering.
maybe send them a message to confirm.

does toggling @floating change anything?

Jun 17 2013 | 12:08 pm


Same thing when floating and not. Also full screen.

I’ll look at the Matrox compatibility with opengl.

Jun 18 2013 | 6:12 am

It says on their webpage for this graphics card:
Opengl 2.0 support.

Should be alright then, right?

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Forums > MaxMSP