Re: [Sc-devel] UGen - bipolar unipolar

["Dan Stowell" <danstowell@xxxxxxxxx>]

Commit it monsieur!

2008/1/12, Julian Rohrhuber <rohrhuber@xxxxxxxxxxxxxx>:
> >Looks innocent enough to me. But why not have the mul args default to
> >1?
>
> ok, for unipolar this makes sense. I just realized that MulAdd makes
> the optimization already, so bipolar can be simple.
>
> unipolar { arg mul = 1;
>                 ^this.range(0, mul)
>         }
>
>   bipolar { arg mul = 1;
>                 ^this.range(mul.neg, mul)
>         }
>
>
> >Would simplify the bipolar method a little, and would make it
> >possible to just write things like SinOsc.ar(300).unipolar
> >
> >Dan
> >
> >
> >2008/1/11, Julian Rohrhuber <rohrhuber@xxxxxxxxxxxxxx>:
> >>  would this be practical?
> >>  it seems that it could be more efficient in some graph generation
> >>  systems to do this.
> >>
> >>
> >>  Index:
> >>  /Volumes/data/sc/SuperCollider3/build/SCClassLibrary/Common/Audio/UGen.sc
> >>  ===================================================================
> >>  ---
> >>  /Volumes/data/sc/SuperCollider3/build/SCClassLibrary/Common/Audio/UGen.sc
> >>  (revision 6913)
> >>  +++
> >>  /Volumes/data/sc/SuperCollider3/build/SCClassLibrary/Common/Audio/UGen.sc
> >>  (working copy)
> >>  @@ -71,6 +71,23 @@
> >>                           ^LinExp.multiNew(rate, this, 0, 1, lo, hi)
> >>                   });
> >>           }
> >>  +
> >>  +       unipolar { arg mul;
> >>  +               ^this.range(0, mul)
> >>  +       }
> >>  +
> >>  +       bipolar { arg mul;
> >>  +               ^if(mul.isNumber) {
> >>  +                       this.range(mul.neg, mul)
> >>  +               } {
> >>  +                       if(mul.isNil) {
> >>  +                               this.range(-1, 1)
> >>  +                       } {
> >>  +                               this.range(-1, 1) * mul
> >>  +                       }
> >>  +               }
> >>  +       }
> >>  +
> >>
> >>
> >>  --
> >>
> >>
> >>
> >>
> >>
> >>  .
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> >>  Sc-devel@xxxxxxxxxxxxxxx
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> >>
> >
> >
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> --
>
>
>
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>
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