Feb 3, 2006 at 11:35am
Hi to the Jitter forum, this is my first letter and I’m working on my first Jitter patch.
The aim is to project huge images, one is 1280 x 640, processed by a Dual G5
I made my first Jitter/OGL desktable to pilot the videos, mapped on several OGL objets so that i can have different ways to put it on stage.
I thought it was reasonnable for a first project but…
First of all, can anyone explain why the play rate is so different when you play a film on QT and via Jitter ? (just read it on a VP)
how is loadram working ? shall I use it ? It seems that Jitter is working with my film even if i don’t play it (rate 0 ?), and filling the ram until nothing is possible anymore !!!! (my videosequences can be several Go size.) How much ram do I need ?
Is there a way to pilot the rotation of an OGL object with a speed rotation instead of an angle ? The pb i have is that when I send my rotation informations (which means a lot of informations a sec, generated by the tabledesk metro), it is briefly interrupted as soon as i ask something else to my desktable, such as loading a new film for the next sequence ….
If I calculate movies with different fps to use lowrate when it is possible (10 ips perhaps), and higher rate when it is necessary (20 ips would be probably enough), how do I configure the metro ?
I knew it would be difficult, so I planed also to work with fix Psd image as backgrounds, to free the cpu for a while and prepare the following sequence. But simply translating a plane with an image was not smooth a all ! how is loadram working with my fixed Psd images ? I sent a bang on the image only if i work on it, (if I send an offset, or move a mask…. but i didn’t reach this step !) Those fixed images are mapped on a plane like the videos, using matrix with @auto
What about metro or qmetro in my case, overdrive or not …..
This is quite a hurry, thank you very much to anyone who could give a hand,
Feb 3, 2006 at 5:40pm
> Hi to the Jitter forum, this is my first letter and I’m working on
so welcome; you seem to have made a very fast start.. all these
before i deal with the content of your post – in my opinion, messages
i’ll just pick a few :-)
what exactly do you mean with ‘pilot’?
> It works, but the play rate is frightenning !
did you try the directly-to-window-method demonstrated in the
> I built my images on after effects and calculate it in PJpeg 75,
> I knew it would be different trough Jitter but the gap is huge !
use colormode uyvy??
btw, do you use any jit.pwindows in your patch? using ‘onscreen’ and
> I used a get movie dim to automatically size the jit.qt.movie
> It seems that Jitter is working with my film even if i don’t play
> (By the way, how can i play the same film on 2 Vplanes, with a one
[the next few questions i omit; maybe they get a bigger chance of
> What about metro or qmetro in my case,
> overdrive or not …..
Feb 6, 2006 at 2:40pm
Thank you very much Jan,
I will take more time tomorow to tell more,
No, I’m not a Max worker eather, I just had a two days briefing on Max and Jitter few mounths ago. I’m working on StageImageProject for a creation with the IRCAM in PAris, no one there nows about image and I feel a bit lonely in Paris in this activity ! It’s good to read the forum, and receive answers.
This Videoplayertable works, and I am working with the IRCAM to programm the show with the autopatter, linked to the music cue list.
The problem is a videorate pb. I map my films on videoplane, to be able to play them different ways, but even asking for nothing else than “play” the rate is very low.
Thank jou for your first answer, i will try to go back and split my problems in differetns parts tomorow on the forum, as you suggested
To be continued so…
Feb 7, 2006 at 6:56pm
On 06.02.2006, at 15:40, Duranteau wrote:
> I’m working on StageImageProject for a creation with the IRCAM in
i didn’t know IRCAM was *that* sound oriented…
> and I feel a bit lonely in Paris in this activity ! It’s good to
ah, like a giant remote control?
> This desktable is on a PB, linked on Ethernet, and sends
maybe you should really first check them with the ‘direct-to-window’
maybe try this (ask if you don’t know what to do with the next lines ;-)
#P window setfont “Sans Serif” 9.;
if that works fine (or doesn’t), you’re a step closer to the
> Especially, when I stop the film (rate 0), it seems that something
i think you mix up 2 things here:
to truly stop it, do both – metro off and ‘stop’.
> It seems also that the ram needs to be emptyed, i don’t know
try the ‘dispose’ message!
as i said before, a (partial) example patch of what you are doing
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