Roman Thilenius

i´d like to replace some of my older jitter "gates" abstractions with my regular messages gates abstractions, which means i am packing the incoming matrix with e.g. [prepend video] and then use different objects such as [gate] or [route] to switch output or to switch between different inputs to the abstraction, as opposed to utilizing jit.crossfade or jit.alphablend.

in many situations now unwanted frames do appear when i modulate such "gates".

example: say i am using [switch] and change its argument (by sending 1 to switch so that a different source is been passed through). in about 50% of the cases there is one unwanted frame now on the output, and that even in a situation where the origin of the frames of both matrixes is the same metro ...

i believe that my problem is caused mostly in my mind, because i just cant stop thinking in right-to-left order when working with video. but isnt there a general trick how to solve this?

example: say i am using [switch] and change its argument (by sending 1 to switch so that a different source is been passed through). in about 50% of the cases there is one unwanted frame now on the output, and that even in a situation where the origin of the frames of both matrixes is the same metro ... 

how-to-gate-a-matrix

difficult to help without patch, but right to left order should apply too

ie, the last received matrix will be the one displayed

difficult to help without patch, but right to left order should apply too
ie, the last received matrix will be the one displayed


How about [selector] within jit.gen? Very simple to implement. It was designed as a switch object for matrices. Are you able to run Gen on your machine?

How about [selector] within jit.gen?  Very simple to implement.  It was designed as a switch object for matrices.  Are you able to run Gen on your machine?

jit.gen is a good idea which i will keep in my mind, but of course i´d prefer a solution which would work on older systems, too. first step is to reuse my existing max gates.

will post a simplified example patch tomorrow.

Can you post an example that generates those unwanted frames?

jit.qt.movie 400 200 jit.qt.movie 400 200 (use still images for this test)

gate gate (controlled by a toggle, one of them with reversed order of 0 and 1)

for me this flickers, and about every other time i press the toggle, one wrong (or black/emtpy) frame appears. this remains like it is even when you put a [del 0] behind the toggle and turn overdrive on.

jit.qt.movie 400 200   jit.qt.movie 400 200   (use still images for this test)

gate   gate   (controlled by a toggle, one of them with reversed order of 0 and 1)

for me this flickers, and about every other time i press the toggle, one wrong (or black/emtpy) frame appears. this remains like it is even when you put a [del 0] behind the toggle and turn overdrive on.


i must be not seeing something very obvious.

no problems here... at least not with this:

no problems here...  at least not with this:

what if you use two different "route video" and then use a op+ or something?

@metamax: i can no longer reproduce the problem. no idea what went wrong.

Sounds like you have no idea what went right. Not such a bad place to be. :)

Sounds like you have no idea what went right.  Not such a bad place to be.  :)


how to [gate] a matrix?