Darling Lee

Thank you every one! I made it.please delete this topic.


could-you-please-help-me-with-an-external-object-compilation-issue

Could you please help me with an external object compilation issue?(Closed)

GeoffMutton

Hello folks, 
I'm having a little trouble getting started with the SDK. 

The documentation talks about running a Ruby build script by using terminal to navigate into the examples folder. 

I can find neither the examples folder, or the ruby build.rb file. 

Can anyone point me in the right direction? 
Thanks!

Hello folks, 
I'm having a little trouble getting started with the SDK. 

max-sdk-8-2-0-can't-find-ruby-build-rb-or-the-examples-folder

I believe the documentation within the SDK was not updated when everything switched to cmake sometime in the last few years.

More recent build instructions are available in the readme at https://github.com/Cycling74/max-sdk.

Many thanks!

Bonus question: should I be looking at the min-devkit? 
My development skills are incredibly rusty and I've done a little C++ with Juce, so would that be a better starting point, or is SDK 8.2.0 still the 'main' way in? 


I recommend starting with the good ol’ C SDK, which (amongst other things) seems to be better documented.

been having trouble running the min-devkit on mac using the max patches(steps to repro: download/install min-devkit using package-manager, run the main patch to create or browse, all i get no matter what i do is errors similar to: "min.project: A problem occurred trying to create the new package" in the max console; running Max8.5.4 on MacOSVentura13.3.1), but i just found there's instructions on github to create from the terminal(?), maybe i'll try that instead

...would love if someone would revisit min-devkit, and create more tutorials on it(Federico Foderaro has a really great one, unfortunately, the steps don't work for me on Mac right now...), it's been rough to get into. Thanks to anyone considering this.

Max SDK 8.2.0 - can't find ruby build.rb or the examples folder

Phong Pham

Hi everyone, 

As a newcomer to Max, I attempted to create a Max external for loading a pytorch model, but unfortunately, I was not successful. I am curious if any members of this forum have accomplished this task before using the min dev-kit and pytorch C++ library, and if they would kindly share their insights on how to do it. I did follow this article to setup my project https://rvirmoors.github.io/2022/07/04/libtorch-mindevkit/  but still not be able to get pytorch to work on my Mac. Your assistance would be greatly appreciated.

Hi everyone, 

As a newcomer to Max, I attempted to create a Max external for loading a pytorch model, but unfortunately, I was not ... 

min-dev-kit-with-external-pytorch

Min dev-kit with External Pytorch

b woods

Apologies for my naivete' but I am new to MaxMSP and its SDK and can't seem to find a reference on this. I am using the SDK to write an object that I would like to have access to messages from "send" objects.  I saw a forum question similar to this, but I do not want to create a new "network" or even send messages, just want to be on the receiving end of the already existing "send network".  Is that possible?

Apologies for my naivete' but I am new to MaxMSP and its SDK and can't seem to find a reference on this. 

access-sendreceive-"network"

Hi, you may have noticed when searching the forum that the question came up very often but has not been answered clearly. I have problems to understand andrea agostini's answer in the thread you linked.

Sending something works by finding the internal "through" object, see Luigi's second post here.
I hope someone can help us find a way for an receive inside an external, I don't need it currently but I'm interessted how it might work. Someone?   


Thanks for the response, 110L532.  I am still confused on how to do this and may have too narrowly defined my problem.  I am going to repost this question in a different way and hope I can get help that way.  cheers.

Access send/receive "network"

Joe Kaplan

Greetings!

I recently got a new machine and am setting up my development environment from scratch.  Joy!!

One of the first things I tried to do is create a new Min Package.  However, I am running in to trouble.  I was able to clone min-devkit, generate the project files, and BUILD ALL.  So far so good.  Now to create a Package.  I tried creating a package using the tool in the Min Devkit launcher.  At first I got a message in the Max console, "Error creating new package."  After removing and rebuilding Min Devkit I don't even get an error, now nothing happens at all.   No message, no folder, no new package.

I tried creating the package using the ruby script.  I get an error: 
(Errno::EINVAL)

Can anybody provide any input here?  I have never had a problem with this before.  Now I have a fresh Windows 10 install, running Visual Studio 16 2019, with CMAKE 3.24, and Ruby Installer 3.1.2-1.

I'm not sure why this would be failing.  Thanks for any tips!

image.png

Greetings!

I recently got a new machine and am setting up my development environment from scratch.  Joy!!
One of the first things I tried t

trouble-creating-min-packages

Trouble Creating Min Packages?

Iain Duncan

Question for external hackers: I'm switching my parallels install for building windows versions of my external over to my M1 Mac from my old intel Mac. When trying to setup Visual Studio, I get a message saying it's not supported on Arm. Does anyone here compile their windows externals from an M1, and if so, how do you do it? Is this even possible? I'm on the max 8.3 sdk with Cmake now, but have quite limited experience with it. thanks!

Question for external hackers: I'm switching my parallels install for building windows versions of my external over to my M1 Mac from my old

compiling-windows-externals-from-an-m1

compiling windows externals from an M1?

W Kacper Werkowicz

Hi all,
As an exercise I wrote a simple external in min-devkit that fills a given buffer using a noise function of choice.
I wrote it for the sake of building a synth using noise-based wavetables, but I guess it might be useful for some other stuff, too.
It includes plain white and pink, as well as brownian noise functions, inspired by this 'ole thread.

What I am also thinking about is to add other functions from this repo:
https://github.com/sbl/sc-max
Also it would be quite nice to make a real-time version of this object.

Would like to know of any good practices when it comes to writing/releasing externals as I am still quite new to this.

macOS  build is available here: https://github.com/wwerk/wkw/releases/download/noisfill/wkw.noisfill_0.11_macos_universal.zip 

Hi all,
As an exercise I wrote a simple external in min-devkit that fills a given buffer using a noise function of choice.
I wrote it for th

my-first-external-for-noise-generation-noisfill~

My first external for noise generation - noisfill~

nbrc

I am very new to programming Max externals. 
To practice, I am making a Moog VCF-like filter. I have based my external on the SDK lores~ example.
My external works well, but, I really want to understand all functionalities that I've implemented.

I don't understand well the relationships between SMOOTHING_VERSION, lores_perform_unroll_smooth64, and maxvectorsize. Can someone explain this to me?

void lores_dsp64(t_lores *x, t_object *dsp64, short *count, double samplerate, long maxvectorsize, long flags){
	x->l_2pidsr = (2.0 * PI) / samplerate;
	lores_calc(x);
	x->l_a1p = x->l_a1;  // store prev coefs
	x->l_a2p = x->l_a2;
	x->l_fcon = count[1];	// signal connected to the frequency inlet?
	x->l_rcon = count[2];	// signal connected to the resonance inlet?
	lores_clear(x);

	if (maxvectorsize >= 4) {
#if SMOOTHING_VERSION
		dsp_add64(dsp64, (t_object *)x,(t_perfroutine64)lores_perform_unroll_smooth64, 0, NULL);
#else
		dsp_add64(dsp64, (t_object *)x, (t_perfroutine64)lores_perform_unroll64, 0, NULL);
#endif
	}
	else
		dsp_add64(dsp64, (t_object *)x, (t_perfroutine64)lores_perform64, 0, NULL);
}

Basically, why do we need an unroll function?

Hello everyone.
I am very new to programming Max externals. 
To practice, I am making a Moog VCF-like filter. I have based my external on th

lores~-code-understanding-unroll-and-related-functions

Regarding smoothing: I don't see any definition of lores_perform_unroll_smooth64, and it looks commented out (via the #define SMOOTHING_VERSION 0). Perhaps it is a historical artifact?

Regarding unrolling: "loop unrolling" can sometimes(*) yield performance improvements.

What is different in the unroll method? It calculates a value `n` which is 1/4 of the vector size. Then inside the main loop, it loops over `n` instead of the vector size. Within that loop, it does four calculations at once instead of one. 

while (n--) {
    *out++ = yna = scale * (val = *in++) - a1 * ynb - a2 * yna;
    *out++ = ynb = scale * (val = *in++) - a1 * yna - a2 * ynb;
    *out++ = yna = scale * (val = *in++) - a1 * ynb - a2 * yna;
    *out++ = ynb = scale * (val = *in++) - a1 * yna - a2 * ynb;
}

while (sampleframes--) {
    val = *in++;
    temp = ym1;
    ym1 = scale * val - a1 * ym1 - a2 * ym2;
    ym2 = temp;
    *out++ = ym1;
}

(*) It can depend on a lot of factors on whether unrolling does improve things, how much, etc. You can read more here: https://en.wikipedia.org/wiki/Loop_unrolling . There is also the caveat of premature optimization -- be careful not to just add loop unrolling everywhere before you know you need to (by checking with benchmarks and profiling tools). :)

Thank you so much for your explanation.
I have a clear idea of what is unrolling.

For smoothing, yes, it seems to be a historical artifact. 

Thank you very much also for the references. I will use loop unrolling carefully. :)

lores~ code : understanding unroll and related functions

Bálint Laczkó

Hi!
Is it possible somehow to mark an inlet<> cold using the min api?

cold-inlet-via-min-api

cold inlet via min api

TLDR, I am not the most seasoned in C/C++, but have a little experience using the old C api, and now I am making some new objects with the Min api.
I want to create an atoms of atoms. I want a toplevel atoms object, to which I could append other atoms objects (like a [coll] but without the address, only the values) as they come in with anything messages. How does one achieve this? Could someone help me out with a basic code example? Thanks a lot!

Dear all~,
TLDR, I am not the most seasoned in C/C++, but have a little experience using the old C api, and now I am making some new objects

min-devkit-atoms-of-atoms

For anyone else struggling, tunrs out the Min api is simpler in this aspect than the old C api, I just needed to make a vector of atoms objects, and it was all done. Then the top level object is a vector instead of an atoms, but that's okay.

Cycling '74 Forums

Thank you every one! I made it.please delete this topic.

Cool - good to know.

Hi everyone, As a newcomer to Max, I attempted to create a Max external for loading a pytorch model, but unfortunately, I was not ...

I found the answer and posted it here.

Greetings! I recently got a new machine and am setting up my development environment from scratch.

Question for external hackers: I'm switching my parallels install for building windows versions of my external over to my M1 Mac from my ...

Hi all, As an exercise I wrote a simple external in min-devkit that fills a given buffer using a noise function of choice. I wrote it for ...

Hi Isabel, Thank you so much for your explanation. I have a clear idea of what is unrolling. For smoothing, yes, it seems to be a ...

Hi! Is it possible somehow to mark an inlet<> cold using the min api?

For anyone else struggling, tunrs out the Min api is simpler in this aspect than the old C api, I just needed to make a vector of atoms ...