procedure TForm1.FormCreate(Sender: TObject);
var LParticles : TGorillaEruptionParticleEmitter;
    LColorInfl : TGorillaColoredParticleInfluencer;
begin
  LParticles := TGorillaEruptionParticleEmitter.Create(FGorilla);
  LParticles.Parent := FGorilla;
  LParticles.Camera := FCamera;

  LColorInfl := TGorillaColoredParticleInfluencer.Create(LParticles);
  LColorInfl.StartColor := TAlphaColorF.Create(0, 0, 1, 1);
  LColorInfl.EndColor := TAlphaColorF.Create(0, 0, 0, 0);
end;

procedure TForm1.Timer1Timer(Sender: TObject);
begin
  // on some constellations you will need an interval to update the viewport
  FGorilla.Invalidate();
end;