2 Jitter syphon server issues: upside-down + fullscreen glitch

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  • This topic has 4 replies, 3 voices, and was last updated 3 months ago by zlp.
Viewing 5 posts - 1 through 5 (of 5 total)
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  • July 20, 2012 at 2:43 am #6180
    zlp
    Participant

    I’m finally getting around to implementing Syphon in some of my patches. Loving it so far.

    I have 2 issues to report (MAX 6.0.5, Syphon beta 2 r2, OS 10.6.8)

    1) If I toggle fullscreen on my jit.window, the Syphon stream is momentarily interrupted. (I’m using jit.gl.node with arbitrary dims so I don’t think the rez is changing when I toggle.)

    2) In my patch, the Syphon stream is upside-down. Easy for me to fix, but just wanted to let you know.

    Background:

    I’m making an example patch to share for noobs like me. It demonstrates how to mix with videoplanes and send out the results as a Syphon stream at an arbitrary frame size, while also rendering to a jit.window at a different size or aspect ratio. It would be nice to be able to enter/exit fullscreen while Syphon continues to roll.

    The patch:
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    • This topic was modified 8 years, 8 months ago by zlp.
    July 20, 2012 at 8:42 am #6182
    vade
    Keymaster

    There is nothing we can do about issue #1, as Jitter actually destroys and rebuilds the OpenGL Context that Syphon relies on. This requires us to tear down and rebuild the Syphon Server.

    As for #2 – Ill take a peek and see if that can be fixed.

    July 24, 2012 at 9:05 am #6212
    zlp
    Participant

    I asked about the fullscreen issue on the Jitter forum and concocted a diy fullscreen method that keeps the syphon frames rolling when toggling fullscreen. (There are a few stuck frames but the stream stays intact.) New patch is over there.

    http://cycling74.com/forums/topic.php?id=41617

    Yay!

    July 24, 2012 at 10:06 am #6213
    vade
    Keymaster

    Oh, nice. Thats a good workaround. Glad you are able to get things working.

    July 28, 2012 at 10:52 am #6226
    hcgilje
    Participant

    In case it is useful for figuring out why jit.gl.syphonserver flips the image when connected to a jit.gl.node, here is a simple patch demonstrating how it behaves when connected to a jit.gl.texture (normal), jit.gl.node (upside down), jit.gl.node-jit-gl.slab (normal). When using the last option on a fullscreen syphon capture the slab seems to have a relatively significant effect on framerate on less powerful graphic cards, so if there could be a fix inside syphonserver that would be great.


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    • This reply was modified 8 years, 7 months ago by hcgilje.
    • This reply was modified 8 years, 7 months ago by hcgilje.
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