Matrox dualhead2go

Jun 1, 2013 at 8:28am

Matrox dualhead2go

Does anyone have any experience using a Matrox dualhead2go for two channel video installation using jitter?  

I’m thinking of getting one to use w/ a Mac mini.  My concern is I heard that you can’t have 2 unique full screens.

Curious your thoughts on it. Thanks.

#251380
Jun 1, 2013 at 8:41am

In Jitter you can, no problem. Just a matter of positioning 2 jit.windows correctly.

The other option is to make just 1 jit.window that spans both outputs and position the contents (2 videoplanes for example) accordingly within it. That’s what I do. Advantage is that everything can be contained within one openGL rendering context this way.

Search for my triplehead post for an elaborate example of multiscreen rendering with Jitter.

#251381
Jun 1, 2013 at 10:40am

dtr, are you on mac osx 10.8.x ? I had also heard there was something similar to what the OP says with this os.

#251385
Jun 1, 2013 at 12:02pm

Yes and indeed to the OS the matrox and its outputs look like 1 screen, so fullscreening a window will span all outputs. But the point is that in Jitter you choose yourself where the windows go, so it’s not an issue. You don’t use the fullscreen command but give the window a specific size and position. Now if you plan to use it with other software you might wanna check if it’s gonna work the way you intend.

#251387
Jun 3, 2013 at 4:45pm

All the above, and you might also like jit.gl.camera with its @viewport feature. You could have two views (jit.gl.camera) of the same or different 3D content.

#251597
Jun 4, 2013 at 5:46am

That’s great!  Thank you all so much for the feedback and insight.  Very helpful.  :)

#251658

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