Where are Dfsm, DbufTag

Iannis_Zannos · March 6, 2022, 11:14am

Hello,

online help lists two interesting Demand UGens:
Dfsm Dfsm | SuperCollider 3.12.2 Help
DbufTag DbufTag | SuperCollider 3.12.2 Help

However their source files
SymbolicMachines.sc
and
TagSystemUgens.sc
are not available in SCClassLibrary.

Neither could I find anything related under Quarks.
Do I need to install some plugins?

Thank you,

Iannis Zannos

mleo · March 7, 2022, 5:32am

Take look here:

I couldn’t find Ugens. They were in here. I have Dfsm, so I suspect you’ll find it there.

Iannis_Zannos · March 7, 2022, 5:54am

Thank you very much Leo.

I could not find Dfsm in sc3-plugins.

Perhaps it is useful to address the issue of sc3-plugins updates and

ask the question in the Developers branch.

I will post another question there.

Best,

Iannis Zannos

Iannis_Zannos · March 7, 2022, 5:51am

Thank you very much Leo.

I could not find Dfsm in sc3-plugins.

Perhaps it is useful to address the issue of sc3-plugins updates and
ask the question in the Developers branch.
I will post another question there.

Best,
Iannis Zannos

mleo · March 7, 2022, 4:34pm

Sorry it wasn’t there. Adding those plugins is the only mod I’ve to the mac install. Good luck.

jamshark70 · March 7, 2022, 11:41pm

It’s here:

github.com

supercollider/sc3-plugins/blob/main/source/TagSystemUGens/sc/SymbolicMachines.sc



Dfsm : DUGen {

	*new { arg rules, n = 1, rgen;
		^this.multiNewList(['demand', n, rgen ?? { Dwhite.new }] ++ this.convertRules(rules))
	}

	*convertRules { arg rules;
		var states, nextStates, sizes, data;

		// if exit state not given, add one.
		if(rules.size.odd) { rules = rules ++ 0.0 };

		// reformat in a more uniform way.
		// exitstate is treated as initial state

		rules = rules.rotate(1);

		states = rules[0, 2..];

This file has been truncated. show original

I’m not sure which version of sc3-plugins you have, but Dfsm is definitely part of sc3-plugins. I went looking to see if it perhaps existed at one point and had been removed, but found instead that it was never removed.

hjh

Iannis_Zannos · March 8, 2022, 5:14am

Thank you James,

I found Dfsm, DbufTag, and its related Dtag in the latest release of SuperCollider
plugins. https://github.com/supercollider/sc3-plugins/releases

A possible source of confusion is the online documentation. It lists the source file
but gives no indication that this is a plugin. It would be helpful to add a hint
for plugins the Description section of the documentation, as I indicate below.

Best,

Iannis

Something like:

Description

[Plugin]: Similar to Pfsm, Dfsm implements a markov chain. Each state has a number of next states out of which one is randomly chosen.