Forums > MaxMSP

jit.gl.videoplane only showing top pixel (Windows 7 only – not mac)


hzd
June 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?

<code>

– Pasted Max Patch, click to expand. –

</code>


June 17, 2013 | 11:54 am

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



hzd
June 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 jit.gl.videoplane and use jit.gl.render 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?


June 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?



hzd
June 17, 2013 | 12:08 pm

Nope.

Same thing when floating and not. Also full screen.

I’ll look at the Matrox compatibility with opengl.



hzd
June 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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