Adding global effects

Francesco_Corvi · 6 February 2021 20:13

When I try to create global effects using the example adding-global-effects.scd, I encounter the following problems:
-After creating the synthdef and assigning it to the orbit if I print in the console the global effects on each orbit I see that the effect is added 4 times on each orbit. While logically I think it should be added only to orbit 0 and only once
-Once I have created the new global effect and assigned it to an orbit all the other orbits stop playing.

cleary · 8 February 2021 05:24

I'm afraid I can't help directly at all, but - there some discussion (and implementation) of global effects in this thread which may give you a clue:

yaxu · 9 February 2021 15:02

If the examples aren't working I think that's worth reporting as an issue here: https://github.com/musikinformatik/SuperDirt/issues

ndr_brt · 9 February 2021 16:10

I did it with the mutable instruments.

First, define the global effect synthdefs like (rows from 227 to end of the file)

github.com

ndr-brt/sc-adente/blob/a30aacd7091f221a90e36eb19b77ee24191b4b6f/synths/mutable.scd#L227


    cf: ripplescf,
    reson: ripplesreson,
    drive: ripplesdrive,
  );
  ReplaceOut.ar(out, signal)
}).add;
);
(
(1..SuperDirt.maxSampleNumChannels).do { |numChannels|
  SynthDef("global_mi_verb" ++ numChannels, { |dryBus, effectBus, verbwet=0, verbtime=0, verbdamp=0, verbhp=0, verbfreeze=0, verbdiff=0.625, verbgain=0|
    var signal = In.ar(dryBus, ~dirt.numChannels);
    Out.ar(effectBus, MiVerb.ar(
      signal,
      verbtime,
      verbwet,
      verbdamp,

Second, add global effects to orbits like (rows from 31 to 39)

github.com

ndr-brt/sc-adente/blob/a30aacd7091f221a90e36eb19b77ee24191b4b6f/superdirt_startup.scd#L31


    ~d3 = ~dirt.orbits[2];
    ~d4 = ~dirt.orbits[3];
    ~d5 = ~dirt.orbits[4];
    ~d6 = ~dirt.orbits[5];
    ~d7 = ~dirt.orbits[6];
    ~d8 = ~dirt.orbits[7];
    ~d9 = ~dirt.orbits[8];
    ~d10 = ~dirt.orbits[9];
  );
  ~dirt.orbits.do { |x|
    var clouds = GlobalDirtEffect(\global_mi_clouds, [\cloudspitch, \cloudspos, \cloudssize, \cloudsdens, \cloudstex, \cloudswet, \cloudsgain, \cloudsspread, \cloudsrvb, \cloudsfb, \cloudsfreeze, \cloudsmode, \cloudslofi]);
    var verb = GlobalDirtEffect(\global_mi_verb, [\verbwet, \verbtime, \verbdamp, \verbhp, \verbfreeze, \verbdiff, \verbgain]);
    x.globalEffects = x.globalEffects
      .addFirst(clouds)
      .addFirst(verb);
    x.initNodeTree;
  };
};

Francesco_Corvi · 10 February 2021 11:12

Thanks @ndr_brt, that worked. Apparently the example in the hacks is not updated, I have reported the issue.

ndr_brt · 10 February 2021 14:01

Yeah, I've just submitted a PR