Forums > Jitter

max/msp 4.6 + jitter 1.2.4 possible?

August 15, 2006 | 2:09 pm

hallo,

if i update an installation of max 4.5.7 / jitter 1.2.4 with the new max 4.6 installer, will it render the jitter installation invalid? (because it says max 4.6 requires jitter 1.6)?

(that’s on Panther PPC)

thanks, -sciss-


August 15, 2006 | 2:39 pm

hi

I know it is a pretty common question , a basic one… but:

on an upcoming tour I wnat to play movies with some basic jitter
actions – mixing (that means 2 movies) some contrast, maybe a filter
- nothing too heavy

_ I however will be obliged to do this on a G4 powerBook (mac) – when
most of the time i was using much more powerful machines… (G5)

_my images are very "fluid" (water streams) and even a simple playing
of a movie (no effects no nothing, just playing it) is not fluid at
all – in other words it is not usable.

_I however know lots of you use this kind of machines live (for video
processing) and not much seem to complain.

__so the question is, what kind of set up, quality, tricks do you use
to produce a "fluid" playing of movies?? preferably 2 movies (so i
could do real time mixing etc)

___the power book I could use for this is a G4 1.5 GHz, 1.5 GHz RAM,
macOS 10.4.7, max 4.5.7, jitter 1.5.2 (i could upgrade to 4.6, 1.6)

___my movies can be 320×240 – i tried with different codecs, DV-PAL,
Apple Photo-JPG… They are read from an external FW disk…
currently a very simple patch (metro 40 -> jit.qT.movie 320 240 ->
jit.brosca -> jit.window) gives me problems…. is not fluid…

any help – such as the dimensions of movies you use, the codec, any
tricks would be very helpful.. the patch has to be played by the
trackpad, so overdrive is off

many thanks

best

kasper

Kasper T. Toeplitz
noise, composition, bass, computer

http://www.sleazeArt.com


August 15, 2006 | 3:13 pm

Id suggest a few things.

1) mix on the GPU. try loading up the GPU DV mixing patch in examples/
jitter/render. I bet you will find it performs better than CPU
mixing, esp on a lower end G4

2) I usually mix on the GPU on my 1.67 powerbook with ~ 1/4 res HDV
stuff, 426x 240 @ 15 fps Photo Jpeg, plus slab effects and openGL
rendered and mixed in as a texture, I can get between 40 to 25 FPS
(or, well, much lower if I turn on everything) on my rendered output,
depending on things. this is using the built in hd, a lowly 5400 rpm POS

maybe that will shed some light. If you keep the patches simple, you
should be able to do it.

v a d e //

http://www.vade.info
abstrakt.vade.info

On Aug 15, 2006, at 10:39 AM, Kasper T Toeplitz wrote:

> hi
>
> I know it is a pretty common question , a basic one… but:
>
> on an upcoming tour I wnat to play movies with some basic jitter
> actions – mixing (that means 2 movies) some contrast, maybe a
> filter – nothing too heavy
>
> _ I however will be obliged to do this on a G4 powerBook (mac) –
> when most of the time i was using much more powerful machines… (G5)
>
> _my images are very "fluid" (water streams) and even a simple
> playing of a movie (no effects no nothing, just playing it) is not
> fluid at all – in other words it is not usable.
>
> _I however know lots of you use this kind of machines live (for
> video processing) and not much seem to complain.
>
> __so the question is, what kind of set up, quality, tricks do you
> use to produce a "fluid" playing of movies?? preferably 2 movies
> (so i could do real time mixing etc)
>
> ___the power book I could use for this is a G4 1.5 GHz, 1.5 GHz
> RAM, macOS 10.4.7, max 4.5.7, jitter 1.5.2 (i could upgrade to 4.6,
> 1.6)
>
> ___my movies can be 320×240 – i tried with different codecs, DV-
> PAL, Apple Photo-JPG… They are read from an external FW disk…
> currently a very simple patch (metro 40 -> jit.qT.movie 320 240 ->
> jit.brosca -> jit.window) gives me problems…. is not fluid…
>
> any help – such as the dimensions of movies you use, the codec, any
> tricks would be very helpful.. the patch has to be played by the
> trackpad, so overdrive is off
>
> many thanks
>
> best
>
> kasper
> —
> Kasper T. Toeplitz
> noise, composition, bass, computer
> http://www.sleazeArt.com
>
>


August 15, 2006 | 3:33 pm

>Id suggest a few things.
>
>1) mix on the GPU. try loading up the GPU DV mixing patch in
>examples/jitter/render. I bet you will find it performs better than
>CPU mixing, esp on a lower end G4

thanks

however in my exemples/jitter-exemples/render i can not find a GPU DV
mixing patch (that’s jitter 1.5.2)

??????? what is its name?? or wasn’t it in the standart
distribution?? if so, could you send it/point to a location??

thanks again – yes, it _sounds_ as a possible solution

best

kasper

Kasper T. Toeplitz
noise, composition, bass, computer

http://www.sleazeArt.com


August 15, 2006 | 3:42 pm

>Id suggest a few things.
>
>1) mix on the GPU. try loading up the GPU DV mixing patch in
>examples/jitter/render.

you mean

jit.gl.slab-DVcompareGPU.pat ???

thanks

kasper

Kasper T. Toeplitz
noise, composition, bass, computer

http://www.sleazeArt.com


August 15, 2006 | 3:43 pm

/Examples/Jitter-Examples/Render/Slab/jit.gl.slab-compositeDV.pat

v a d e //

http://www.vade.info
abstrakt.vade.info

On Aug 15, 2006, at 11:33 AM, Kasper T Toeplitz wrote:

>> Id suggest a few things.
>>
>> 1) mix on the GPU. try loading up the GPU DV mixing patch in
>> examples/jitter/render. I bet you will find it performs better
>> than CPU mixing, esp on a lower end G4
>
> thanks
>
> however in my exemples/jitter-exemples/render i can not find a GPU
> DV mixing patch (that’s jitter 1.5.2)
>
> ??????? what is its name?? or wasn’t it in the standart
> distribution?? if so, could you send it/point to a location??
>
> thanks again – yes, it _sounds_ as a possible solution
>
> best
>
> kasper
> —
> Kasper T. Toeplitz
> noise, composition, bass, computer
> http://www.sleazeArt.com
>
>


August 16, 2006 | 2:21 am

> hallo,
>
> if i update an installation of max 4.5.7 / jitter 1.2.4 with the new max 4.6 installer, will it render the jitter installation invalid? (because it says max 4.6 requires jitter 1.6)?
>
> (that’s on Panther PPC)

I don’t know if it will work. We have not tested the idea. I think in this case you will be better off just sticking with 4.5.7

-A


August 16, 2006 | 11:24 am

Hi Kasper,
I was investigating this issue quite a bit. My finding was that a fluent
playback of a video is only possible when using the "direct to window"
mode. it seems that this has nothing to do with the processing power of
the computer. Also the suggested OpenGL methods do not work properly
for me. Some time ago I was suggesting (and dreaming of) something like
a "direct to OpenGL" method. But maybe thats just stupid.

What I did not try is using NTSC material (because I don’t have some).

If you find a method of proper playback I would love to hear about it.

John.

Kasper T Toeplitz schrieb:
> hi
>
> I know it is a pretty common question , a basic one… but:
>
> on an upcoming tour I wnat to play movies with some basic jitter
> actions – mixing (that means 2 movies) some contrast, maybe a filter –
> nothing too heavy
>
> _ I however will be obliged to do this on a G4 powerBook (mac) – when
> most of the time i was using much more powerful machines… (G5)
>
> _my images are very "fluid" (water streams) and even a simple playing
> of a movie (no effects no nothing, just playing it) is not fluid at
> all – in other words it is not usable.
>
> _I however know lots of you use this kind of machines live (for video
> processing) and not much seem to complain.
>
> __so the question is, what kind of set up, quality, tricks do you use
> to produce a "fluid" playing of movies?? preferably 2 movies (so i
> could do real time mixing etc)
>
> ___the power book I could use for this is a G4 1.5 GHz, 1.5 GHz RAM,
> macOS 10.4.7, max 4.5.7, jitter 1.5.2 (i could upgrade to 4.6, 1.6)
>
> ___my movies can be 320×240 – i tried with different codecs, DV-PAL,
> Apple Photo-JPG… They are read from an external FW disk…
> currently a very simple patch (metro 40 -> jit.qT.movie 320 240 ->
> jit.brosca -> jit.window) gives me problems…. is not fluid…
>
> any help – such as the dimensions of movies you use, the codec, any
> tricks would be very helpful.. the patch has to be played by the
> trackpad, so overdrive is off
>
> many thanks
>
> best
>
> kasper


August 16, 2006 | 5:01 pm

On Aug 16, 2006, at 4:24 AM, John Dekron wrote:

> Hi Kasper,
> I was investigating this issue quite a bit. My finding was that a
> fluent playback of a video is only possible when using the "direct
> to window" mode. it seems that this has nothing to do with the
> processing power of the computer. Also the suggested OpenGL
> methods do not work properly for me. Some time ago I was suggesting
> (and dreaming of) something like a "direct to OpenGL" method. But
> maybe thats just stupid.

Sending from jit.qt.movie->jit.gl.texture or jit.gl.slab using
colormode uyvy should be the smoothest solution.

You might also have problems if you have lots of UI elements. The
performance of UI heavy interfaces can be improved by increasing the
queuethrottle settings in the performance options window.

-Joshua


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