[PD] Random - Different seed each time the patch is loaded
mjmogo at gmail.com
Thu Sep 4 23:11:24 CEST 2008
Speaking of Lua and randoms, I had read somewhere (I think on the website)
that on some platforms, their random generators will always produce the same
FIRST number, but everything else after that is "random". I tested this out
on the Mac OS X, and yes, every FIRST number is the same, but everything
else beyond that isn't. The "workaround" for this is to just drop the first
random value you get. I don't know why this happens, but is it possible that
the same things happens in PD? I have not tested this out.
On Thu, Sep 4, 2008 at 2:56 PM, Frank Barknecht <fbar at footils.org> wrote:
> IOhannes m zm?lnig hat gesagt: // IOhannes m zm?lnig wrote:
> > Martin Peach wrote:
> > > Or have a single random generator inside pd that feeds all the random
> > > objects.
> > yes of course, this would be the most straight forward solution.
> Only to this one problem, but it would lead to many others: Being able
> to seed [random] objects separately is a very important feature. For
> example a lot of the algorithmic composition in the game "Spore" is
> relying on seeding random generators separately with known seeds
> (according to the talk once posted here).
> In Lua there is only one seed for all math.random() calls, and it's even
> globally affecting all pd_lua objects. That's very annoying, but thank
> god, there's a random.so "external" Lua module which fixes this.
> Frank Barknecht
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