[Fluxus] build-particles & hint-anti-alias

[gabor papp]

hi Kassen,

> The help for (build-particles ) states that (hint-anti-alias) will turn
> particles set to (hint-points) to circles. For me that's not true. Instead
> (point-width int) will do the job, for any int I tried. That is -for what I
i think this depends on how it is implemented in the gpu driver, and it's 
not connected to what we do in fluxus.

best,
gabor