Joshua Knapp

I'm new to the Jitter world and I'd like to...

1) ...generate a random jit.matrix with pixels ranging from black to white (grayscale). (I can do this!)

2) ...then process this initial matrix so that...

2.1) ...every black pixel rgb(0, 0, 0) "grows" into a square figure which is 509 pixels wide. The pixels get whiter the 

further they are from the center pixel: Center px has rgb (0, 0, 0) -> neighbouring pixels have rgb (1, 1, 1) 

Konzept.png

When a center pixel has rgb (27, 27, 27), it grows 455 pixels wide, so it's wide enough, that the rgb values of the 

pixels growing outwards increase +1 until they reach almost-white (254, 254, 254), then their goal is reached. 

This means that a center pixel with rgb (254, 254, 254) does not grow and a center pixel with rgb (253, 253, 253) 

2.2) ...when 2 figures overlap, I want to calculate the average of the rgb values of the overlapping pixels.

AverageOut.JPG

I'm happy about any solutions, thank you!

1) ...generate a random jit.matrix with pixels ranging from black to white (grayscale). (I can do this!)

2) ...then process this initial matrix so that...

   2.1) ...every black pixel rgb(0, 0, 0) "grows" into a square figure which is 509 pixels wide. The pixels get whiter the 
   further they are from the center pixel: Center px has rgb (0, 0, 0) -> neighbouring pixels have rgb (1, 1, 1)                         
   -> then (2, 2, 2) and so on. 

   When a center pixel has rgb (27, 27, 27), it grows 455 pixels wide, so it's wide enough, that the rgb values of the     
   pixels growing outwards increase +1 until they reach almost-white (254, 254, 254), then their goal is reached.     
   This means that a center pixel with rgb (254, 254, 254) does not grow and a center pixel with rgb (253, 253, 253)     
   grows only 3 pixels wide. 

   2.2) ...when 2  figures overlap, I want to calculate the average of the rgb values of the overlapping pixels.

Hello Jitter people,
I'm new to the Jitter world and I'd like to...
1) ...generate a random jit.matrix with pixels ranging from black to whi

looking-for-a-matrix-processing-algorithm

I don’t understand the meaning of your answer 

Nobody? 
The longer I try to build this patch idea, the harder it seems. 
I thought maybe jit.expr would do the job, because it can generate gradient masks, but only from the center of the matrix it seems. Help I'm lost and I don't know if the idea is event worth my time :D :/

I wouldn't be able to implement that "visually" (although I am not saying that it is impossible), I'd rather look for a programming method (writing code in a classic text form).

In my opinion, the specific feature of your idea is that you have to create "buffers" that remember the shapes that build up on each pixel, and then combine these buffers together (eg creating a matrix - by mixing shapes/pixels brightness accordingly - this method is generating a lot of data dynamically) or the implementation will be doing a lot of iterative processess. However it should be relatively easy to implement in any programming environment allowing access to pixel data ("matrices") and typical data structures. 

If I was in a rush, I would do it in Processing or OpenFrameworks, for example, and connect to Max via Syphon or Spout. I'm not sure it's easy to write something like this with jit.pix or shaders (or generally Max internal mechanics). You could also experiment with JavaScript (the mechanisms built into Max like js / jsgui, Node, jweb) - but for high resolution images that might be inefficient (but I might be wrong, I didn't check it out). Of course you may also create an external for Max. Java "inside" Max will be a great mechanics for this kind of tasks, however it is a little bit deprecated component of Max (but maybe my knowledge about this is deprecated too).

sounds like you are talking about a cellular automata? check out the jit.gl.pix example patch called pix.game.of.life (search the file browser)

Looking for a matrix processing algorithm

ZeroValue

I was looking for the api part of Ableton Live that create clip, which is working well.

But I wish to fix position of dials in the clip too. 

Is it possible or am I searching for something impossible ?

Hi, 
I was looking for the api part of Ableton Live that create clip, which is working well.
But I wish to fix position of dials in the clip too. 
Is it possible or am I searching for something impossible ?

best

Hi, 
I was looking for the api part of Ableton Live that create clip, which is working well.
But I wish to fix position of dials in the clip

create-clip-automation

Create Clip + Automation 

eldar sadykov

I have a number of fft frames stored in a jitter matrice. I read them with jit.peek with “@interp 1” inside pfft~ to play them with interpolation. Do I need to apply interpolation to phase as well as amplitude? I am actually a little uncertain about how to handle phase inside fft during resynthesis process.

I have a number of fft frames stored in a jitter matrice. I read them with jit.peek with “@interp 1” inside pfft~ to play them with interpol

fft-frames-interpolation

Fft frames interpolation

John OBrien

I have an old M-Audio Mobile Pre 2-in 2-out USB interface that I use for situations when I only need two channels and when I'm looking for portability. This interface is class-compliant and still works fine, most recently with Reaper on Monterey with my new Mac Book Pro. However, when I try to use it with Max 8, it will only offer me a sampling rate of 3200, with no other options in the Audio Status menu. I have had the same issue on an older Mac running Max 8 on High Sierra. Needless to say, this creates all sorts of not-nice audio problems. Is there anything I can do about this or is this just the end of the line for this interface as far as Max goes?

I have an old M-Audio Mobile Pre 2-in 2-out USB interface that I use for situations when I only need two channels and when I'm looking for p

max-8-doesn't-like-my-interface

Max 8 Doesn't Like My Interface

okuphuzi

I'd like to be able to modify the output of a phasor~ so it ramps just like the output from curve~, based on a given curve parameter from -1 to 1. What is the best and/or most efficient way to go about doing that?

I'd like to be able to modify the output of a phasor~ so it ramps just like the output from curve~, based on a given curve parameter from -1 to 1.  What is the best and/or most efficient way to go about doing that?

I'd like to be able to modify the output of a phasor~ so it ramps just like the output from curve~, based on a given curve parameter from -1

how-can-i-modify-the-output-from-phasor~-so-it-ramps-like-curve~

Ah yes.  I knew the answer would be obvious :-).  Thanks

How did you translate from 0.7 to 3.0 for the curve parameter?  I don't see an obvious way from looking at those two numbers.

Edit:  the two curves do differ slightly (scale~ 3. is slightly different than curve~ 0.7).  I will try to figure out how to map exponents between curve~ and scale~

https://cycling74.com/forums/compare-function-in-curve-mode-to-scale-and-scale

I don´t know why the curve of each object is different and never got an answer how to match them.
I think the scale in gen~ is also diffrent. 


How can I modify the output from phasor~ so it ramps like curve~?

Ivan Punal

I would like to know if there is some type of command, object, function or similar, that "freezes" the update of certain values ​​in MAX until something happens ... Let me explain ... 

I am using a system of matrix to interconnect external and internal FX, similar to the Matrix Mixers on the Synthi. In some cases I would like to be able to mark the connections that I want to make and once all have been marked execute them, not one by one. I could put under each "toggle" a switch that opens the connection or closes it, but taking into account that the matrix is ​​20 x 20 I wonder if there is any faster to do so.

Hi everyone!

I would like to know if there is some type of command, object, function or similar, that "freezes" the update of certain values ​​in MAX until something happens ... Let me explain ... 
I am using a system of matrix to interconnect external and internal FX, similar to the Matrix Mixers on the Synthi. In some cases I would like to be able to mark the connections that I want to make and once all have been marked execute them, not one by one. I could put under each "toggle" a switch that opens the connection or closes it, but taking into account that the matrix is ​​20 x 20 I wonder if there is any faster to do so.

Thanks!

Hi everyone!

I would like to know if there is some type of command, object, function or similar, that "freezes" the update of certain value

update-values-function

Pack your values into list and trigger it when you want.
List can be in a message, or zl reg, or anything else
that can store some values without directly outputting them.



Or make a preset system. Best is [pattrstorage] but you can start with [preset]. For your application you want pattrstorage in manual subcription mode to include only certain client objects to store and recall.

Update values function

Andy Fennesz

In Eurorack, I'd send it a 5v narrow pulse wave. I tried that, and also the Transport-synced metronome, but I can't get any signal out of the clock divider in Trigger or Gate mode. Is there something I'm missing? Thanks.

In Eurorack, I'd send it a 5v narrow pulse wave.  I tried that, and also the Transport-synced metronome, but I can't get any signal out of the clock divider in Trigger or Gate mode.  Is there something I'm missing? Thanks.

In Eurorack, I'd send it a 5v narrow pulse wave.  I tried that, and also the Transport-synced metronome, but I can't get any signal out of t

how-do-i-feedactivate-the-clock-divider

How do I feed/activate the Clock Divider?

Floating Point

If I combine a list such as hh:mm:ss, how would I then 'uncombine' it back into its constituent parts (in this case 3 separate ints, discarding the colons)??

If I combine a list such as hh:mm:ss, how would I then 'uncombine' it back into its constituent parts (in this case 3 separate ints, discarding the colons)??
Suggestions?
Thanks
T


combine-uncombine

Quote: Terry McDermott wrote on Wed, 12 November 2008 21:24
----------------------------------------------------
> If I combine a list such as hh:mm:ss, how would I then 'uncombine' it back into its constituent parts (in this case 3 separate ints, discarding the colons)??
> Suggestions?
----------------------------------------------------

Perl is one thing (one of many things) I know nothing about. Thanks. You just saved me a large chunk of the evening fooling about with regexp (although I guess I would have learnt something about perl).
Thanks again.
T


Terry McDermott skrev:
> Perl is one thing (one of many things) I know nothing about. Thanks. You just saved me a large chunk of the evening fooling about with regexp (although I guess I would have learnt something about perl).
> Thanks again.
Unfortunately the Perl documentation is a bit "huh?" when trying to do 
those things with regexp... I'm getting to the point where I'd pay good 
money for a good hand-holding tutorial website on using the regexp 
object. :-)

Yep, I'm looking at the regexp helpfile right now and thinking ...huh...? time to google perl in wikipedia perhaps. must be a simple tutorial out there somewhere...


Quote: Terry McDermott wrote on Thu, 13 November 2008 02:58
----------------------------------------------------
> Yep, I'm looking at the regexp helpfile right now and thinking ...huh...? time to google perl in wikipedia perhaps. must be a simple tutorial out there somewhere...
----------------------------------------------------

Yeah, there are many tutorials out there and most of them are not very good. This one seems sort of ok: http://www.regular-expressions.info/quickstart.html

You could also try a book like "Teach Yourself Regular Expressions in 10 Minutes" (I haven't read it, but it seems good for beginners)

Maybe it will help to explain the one I used in that patch:
([^:]*):([^:]*):([^:]*)

[] matches whatever characters are in between the brackets, so [:] matches a colon. When you do [^...] it matches anything EXCEPT what's in the brackets. So [^:] matches anything other than a colon. The * matches the preceding thing any number of times. That means [^:]* will keep matching characters until there is a colon. Then the : matches the colon. I repeat this pattern to match three sets of non-colon sequences seperated by colons. Finally the (parentheses) will "capture" whatever is between them, and the second outlet of Max's regexp object outputs all the captured parts as a list.

Regular expressions are not very intuitive, but they are uber-powerful so it is a good thing to learn. Really there are only a few tricks you need to know, like how to use [brackets] (parentheses) and the special symbols . * ? + | ^
It's just hard to explain in words, unfortunately.


I've found www.regular-expressions.info quite helpful too.

The previous example matches anything between the colons so it would also match "how:are:you:" which shouldn't really be a problem if you're only sending it numbers but for the sake of clarity and a mini regular expression lesson here's what I would use:

regexp ^([0-9]{2}):([0-9]{2}):([0-9]{2})$

[0-9] = matches any numeric character
{2} = match exactly two times
^ = at the start of the string
$ = at the end of the string
(...) = remember as a back reference

So this regexp says: match exactly two numeric characters at the start and remember them, then a colon, then another two numeric characters and remember them, then another colon, then another two numeric characters at the end and remember them. I hope this helps.

Thanks Adam & lh; your posts are a great adjunct to the help file. I didn't end up looking for tutes on the web-- turned the computer off and watched a Seinfeld re-run instead-- from one form of obscure scripting to another...
T


The regexp are definitely powerful but man do they look mysterious. Just mess with them awhile and they'll start to make sense. You can then do all kinds of interesting stuff with html, for example, as shown in the helpfile. 

Along these lines, is there any way to take a single symbol and break it apart, so:

or something like only the third character:

I know you can do it in Java, and probably jasch's Strings, but any easy way to do it in regular Max?

On 13 nov. 08, at 22:59, Seejay James wrote:

> The regexp are definitely powerful but man do they look mysterious.  
> Just mess with them awhile and they'll start to make sense. You can  
> then do all kinds of interesting stuff with html, for example, as  
> shown in the helpfile.
>
> Along these lines, is there any way to take a single symbol and  
> break it apart, so:
>
> symbol -->
> s y m b o l (as a list)

> or something like only the third character:
>
> symbol -->
> m

You know the funny thing is that each time there's a question about  
regular expression, I more and more feel the same way, there's no way  
you can document such things (apart from the "Mastering Regular  
Expression" book, of course). I mean you have to adapt the regular  
expression depending on what you need, so obviously everyone needs  
something different. But isn't it why we all use Max after all?

Adam Murray schrieb:
> You could also try a book like "Teach Yourself Regular Expressions in
> 10 Minutes" (I haven't read it, but it seems good for beginners)

The problem with regexp in general for me is, each time I get to them I 
have to do the 10 minutes again, they are just the opposite if being 
intuitive...;-)

And it is always good to stay in the mood of a beginner, I f I loose it 
I try regexp again... ;-)

-- 
Stefan Tiedje------------x-------
--_____-----------|--------------
--(_|_ ----|-----|-----()-------
-- _|_)----|-----()--------------
----------()--------www.ccmix.com


combine->uncombine

Luke Teaford

I understand that I can save a file as .maxhelp, but I'm looking for more documentation and tips for making the references and anything I can do to make my custom abstractions better documented.

Can anyone point me in the right direction on this? Thanks!

I understand that I can save a file as .maxhelp, but I'm looking for more documentation and tips for making the references and anything I can do to make my custom abstractions better documented.

Can anyone point me in the right direction on this? Thanks!

I understand that I can save a file as .maxhelp, but I'm looking for more documentation and tips for making the references and anything I ca

how-to-make-helpreference-files-for-custom-abstractions

The first step would be to pack your abstractions into a package. If you take a look at other packages you will see how it’s done. A help file e.g. is a Max patcher, saved under  the same name but with the extension .maxhelp inside a folder called help in your package.


i dont think there are guidelines for helpfiles, but as a minimum you should show off everything you might forget yourself after a few years, and in the optimal case you would show off everything the objects can do.

personally i would not use tabs like they do for the factory content but put everything in a single canvas.

what can be most useful is to explain in a few words what it is intended to do, like "this is a math function" or "this is a helper file for making UI objects in lcd".

eventually you also want to choose a custom design for all your stuff.


Thanks for the replies so far. My abstractions won't be distributed, but I want to document as close to the Max native documentation as possible for (my personal) ease of use.

For example, I have an abstraction called coin-toss which gives a random bang from one of its two outlets. The left inlet takes a bang or a seed message. The right inlet and/or creation argument accepts 0-1 float to determine the probability that the bang will go to the left or right inlet.

I want my documentation to have all the same features as the native [decide] (or at least as many as possible) and I can't find any documentation about how to populate the reference. I can make the help file show up, but I don't understand how [decide]'s help "header" file is built. Right clicking on it gives me options to "Open jsui Help".

I write JS professionally and I'm familiar with Pd. I just can't seem to find anything that walks thru creating help/reference files. Specifically I'd like to know how to edit the "default" formatting so I could copy a similar help file and modify and how to make the reference show up (including the tooltips you see when hovering over each inlet).

Update: https://docs.cycling74.com/max8/vignettes/assistance_authoring 

This takes care of the "tooltips" which are properly called Assistance messages (and show up in inlet/outlet inspectors under Behavior/Comments)


the reference is not related to the help file and i dont think that the short form reference visible in the inspector row is very useful. for some stock objetcs there are 5 out of 15 functions shown^^

Thanks, Roman! I understand it's not related, but is it possible to make reference files for abstractions? 

I really like working with Max, so I'm hoping to keep everything well documented and ironically one of the more difficult things I've run into so far is understanding how to write documentation. The concepts are a bit complicated and it's not obvious to me why the Clue window is treated separately or why it's useful.


i´ve never thought about that. 

the "real" reference is probably html files within the app bundle, but i have no idea what makes that subset on the right side of the help window.

i also dont see a matching folder name among the default packages folder names.

You can create a ref file for your abstraction. For examples, look into /resources/docs of the Max app folder.
I don't think these are created manually at C74, but I don't know of a tool that comes with Max to create a ref file. 



whenever i open a help file in modern max versions, i miss the inspector.


How to make Help/Reference files for custom abstractions?

Tom Law

I'm using the "loop sync output" on groove~ to sync a slider object over a waveform~ object.  It'll work fine for like 2o minutes, but then that loop sync output just stops putting out a signal for no apparent reason.  If I then connect another number~ object to it (or just delete the cable to the existing number~ object and then undo the delete), it'll start putting out a signal again.

Any ideas what might be causing this?  I'm using the timestretch attribute, don't know if that's contributing to the problem.  It's really hard to troubleshoot, since I have to work for 20 minutes or so after making a change to see if it's made a difference. I'm using Max 8.2.0 on MacOS 11.6.

Any ideas what might be causing this?  I'm using the timestretch attribute, don't know if that's contributing to the problem.  It's really hard to troubleshoot, since I have to work for 20 minutes or so after making a change to see if it's made a difference.  I'm using Max 8.2.0 on MacOS 11.6.

I'm using the "loop sync output" on groove~ to sync a slider object over a waveform~ object.  It'll work fine for like 2o minutes, but then 

"loop-sync-output"-on-groove~-object-stops-working-after-20-minutes

Are you sure it is groove~ sync output, and not number~ that stops responding ?
you can connect meter~ parallel to number~  and check


Thanks!  I did that, and indeed the problem does seem to be with number~, not groove~.
So why would number~ stop working, then?

I one only would know and understand all that...
There were reports also about snapshot being unreliable after a longer period of time.
I've run groove~ test yesterday with both meter and number at sync output,
and both were working ok after 3 hours.
Mac, Max 8.1.11



it should not happen with groove~. 

number~ does the same as snapshot~ and peakamp~, that is clear.

always use external metro for these, then all is good.


I don't understand what you mean about using external metro with either number~ or snapshot~.  With either one, I'm feeding them the sync signal from groove~.   How would I connect an external metro?
(Thanks!)


snapshot/peakamp can either report the current sample value when it recieves a bang, or using an internal clock / auto mode. only the latter is what does not work right.

regarding number~ i was wrong, bang does already something else there.

OK, this looks promising.   I'll try it out first thing tomorrow morning.  Thanks so much!

There was a fix for this [number~] and [snapshot~] issue included in 8.1.6, if you are still seeing this in 8.1.11 or 8.2 could you send us a patch that demonstrates the issue with either object, along with your support information, to support@cycling74.com ?

"Loop sync output" on groove~ object stops working after 20 minutes

Ben Bracken

. The Runner provides plug and play access to a 

 from the Max application, using using OSCQuery for communication with the running code.

This update features a new web-based interface with routing capabilities, expanded hardware support, along with many other improvements and bug fixes. Improvements include:

We've also rolled in direct support for the 

 add-on package, and have included a number of other improvements and bug fixes. Check out the release notes 

We are happy to announce the release of RNBO 1.3.0, available now for download via the Max Package Manager.

With this update, we are...

rnbo-130-released

RNBO 1.3.0 Released

We are excited to announce the availability of our 

 as a public beta. We’ve worked closely with 

. The Eventide H9000 is a rack-sized multi-effects unit with powerful DSP processing capabilities and numerous high quality built-in effects. We’re excited to enable RNBO export for this and open the door to unique custom studio effects and instruments without the strict limitations of other hardware platforms.

RNBO support is similar to the existing Gen support, but more streamlined, and uses the built-in 

, rather than a watcher patcher, to manage the export process. Eventually, all of these changes will be rolled into the standard release versions of RNBO and this package.

Get the preview version of the RNBO package (v1.2.7-eventide.0):

Get the preview version of the "Eventide H9000" package (v1.0.4-beta.3):

We’d love to hear any experiences and feedback from RNBO users with access to an H9000. To join the discussion, use the 

We are excited to announce the availability of our Eventide package for RNBO as a public beta. We’ve worked closely with Eventide to bring...

Cycling '74 Forums

We are happy to announce the release of RNBO 1.3.0, available now for download via the Max Package Manager. With this update, we are...

We are excited to announce the availability of our Eventide package for RNBO as a public beta. We’ve worked closely with Eventide to...

sounds like you are talking about a cellular automata? check out the jit.gl.pix example patch called pix.game.of.life (search the file...

Hi, I was looking for the api part of Ableton Live that create clip, which is working well. But I wish to fix position of dials in the clip

I have a number of fft frames stored in a jitter matrice. I read them with jit.peek with “@interp 1” inside pfft~ to play them with interpol

I have an old M-Audio Mobile Pre 2-in 2-out USB interface that I use for situations when I only need two channels and when I'm looking for p

https://cycling74.com/forums/compare-function-in-curve-mode-to-scale-and-scale I don´t know why the curve of each object is different and...

Or make a preset system. Best is [pattrstorage] but you can start with [preset]. For your application you want pattrstorage in manual...

In Eurorack, I'd send it a 5v narrow pulse wave. I tried that, and also the Transport-synced metronome, but I can't get any signal out of t

wow! very wonderful! thanks a lot!

whenever i open a help file in modern max versions, i miss the inspector.

Hi Tom and Roman, There was a fix for this [number~] and [snapshot~] issue included in 8.1.6, if you are still seeing this in 8.1.11 or...