SynthDef.new(DafunkFilter, {|bus, dafilter, dastart, darel, darq, datype, sus| var osc,env,filGen; 
osc = In.ar(bus, 2);
env = EnvGen.ar(Env.adsr(0.3, 0.2, sus, darel);, Line.kr(1.0, 0.0, sus/2), doneAction:2);
filGen = EnvGen.ar(Env.adsr(0.4, 0.5, 0.2, 0.5);, Line.kr(1.0, 0.0, sus/2), levelScale: dafilter);
osc = SelectX.ar(datype, [BPF.ar(osc, dastart + filGen, darq), BRF.ar(osc, dastart + filGen, darq)]);
osc = (osc.clip2(0.007) * 24).distort();
ReplaceOut.ar(bus, osc)}).add;

// source https://github.com/jivimberg/punkt

Hi there, hello ! 
This is the filter we used in this video. It’s adapted from Punkt - link on the left and quite ready to use in foxDot if you’d like to !