Forums > Jitter

recording jitter

December 11, 2006 | 12:06 pm

Hallo everybody,
i’m a newbie with a very nice patch for a very nice show. But as a messy musician i don’t understand much of video processing.
My problem is rendering jitter to video with very High Definition, it doesn’t matter time. I followed the exmples and the simplest thing i could find was rendering in a separate window and then capture the desktop. Even if i use "write raw lossless 30" and the record object with 1024*576 fo exqmple, the quality is not as good as the rendered one.

My question is: is there a way of rendeing the exact quality you render on the screen to disk in a video file workable afterwards (for buning compress etc..)? If yes, how can i implement this in a patch in which i render the video in a jit.window?

Hope you can help me
Thanks
Alberto


December 11, 2006 | 3:50 pm


December 11, 2006 | 11:57 pm

ok i think i found a way of solving the porblem, i’ll send you the patch anyway. It’s messy and probably could be done easier, i took away some auxiliary parts, essentially it’s just Open Gl now. My problem as you unerstood is the recording part.
I hope now i can have better quality, at least i don’t go trough the desktop capture as before. I followed the examples: jit.render-tomatrix.pat in the examples folder.

If you think now works fine for high quality recording, i have one further question:
i use some texture ad when i’m in high quality jitter cannot render in real time and my texture skips some frames making the output not nice. I adapt the frame rate manually to adjust it but it’s kind of "bricolage". Do you now a better way of having all frames not in real time?
Hope you understood me.
Than ks so far
Alberto


December 11, 2006 | 11:57 pm

this is the other file necessary
cheers


December 12, 2006 | 12:44 am

Hi,

My render_node patch might work for you. You can download it from
http://2uptech.com .

best,
Randy

On Dec 11, 2006, at 3:57 PM, alberto novello wrote:

> ok i think i found a way of solving the porblem, i’ll send you the
> patch anyway. It’s messy and probably could be done easier, i took
> away some auxiliary parts, essentially it’s just Open Gl now. My
> problem as you unerstood is the recording part.
> I hope now i can have better quality, at least i don’t go trough
> the desktop capture as before. I followed the examples: jit.render-
> tomatrix.pat in the examples folder.
>
> If you think now works fine for high quality recording, i have one
> further question:
> i use some texture ad when i’m in high quality jitter cannot render
> in real time and my texture skips some frames making the output not
> nice. I adapt the frame rate manually to adjust it but it’s kind of
> "bricolage". Do you now a better way of having all frames not in
> real time?
> Hope you understood me.
> Than ks so far
> Alberto
>


December 12, 2006 | 4:55 am


December 12, 2006 | 1:47 pm

Ok i think i’m getting over some problems now. Thanks very much.
Just maybe one more question: from all the codecs present (i’m a bit puzzled), which one is the best suitable for high definition with OpenGL, don’t care so much about spece just very high quality.
Thanks
Alberto


December 12, 2006 | 4:32 pm

the manual states that until qt 7 only certian codecs support the uyvy
colormode which uses half the bandwidth.
i use photojpeg and it works.
- it doesnt support alpha channel.

On 12/12/06, alberto novello wrote:
>
>
> Ok i think i’m getting over some problems now. Thanks very much.
> Just maybe one more question: from all the codecs present (i’m a bit
> puzzled), which one is the best suitable for high definition with OpenGL,
> don’t care so much about spece just very high quality.
> Thanks
> Alberto
>


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