Jonathan Wooldridge <jwo### [at] attbicom> wrote:
>     do_stuff( C );
>     do_stuff( C - 1 );
>     do_stuff( C - 2 );
>     ...
>     do_stuff( C - 8 );
>     do_stuff( C - 9 );
>     do_stuff( C - 10 );

  You are doing 11 things there, not 10.

-- 
#macro M(A,N,D,L)plane{-z,-9pigment{mandel L*9translate N color_map{[0rgb x]
[1rgb 9]}scale<D,D*3D>*1e3}rotate y*A*8}#end M(-3<1.206434.28623>70,7)M(
-1<.7438.1795>1,20)M(1<.77595.13699>30,20)M(3<.75923.07145>80,99)// - Warp -

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On Sat, 25 May 2002 18:38:58 -0700, "Jonathan Wooldridge"
<jwo### [at] attbicom> wrote:
> No sooner said than done!
> // Script without so many locals ("Spam, spam, spam and eggs spam hasn't got
> too much spam in it"...)
> #local C=1000000;
> #while(C)
>    do_stuff( C );
>    do_stuff( C - 1 );
>    do_stuff( C - 2 );
>    ...
>    do_stuff( C - 8 );
>    do_stuff( C - 9 );
>    do_stuff( C - 10 );
>    #local C = C - 10;
> #end

Are you aware that calling macro usually isn't faster than perform float
#local in current pov parser ?

ABX

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<jwo### [at] attbicom> wrote:
> > No sooner said than done!
> > // Script without so many locals ("Spam, spam, spam and eggs spam hasn't
got
> > too much spam in it"...)
> > #local C=1000000;
> > #while(C)
> >    do_stuff( C );
> >    do_stuff( C - 1 );
> >    do_stuff( C - 2 );
> >    ...
> >    do_stuff( C - 8 );
> >    do_stuff( C - 9 );
> >    do_stuff( C - 10 );
> >    #local C = C - 10;
> > #end
>
> Are you aware that calling macro usually isn't faster than perform float
> #local in current pov parser ?
>
> ABX

The do_stuff( x - y) statements are place holders, they are not meant to
represent an additional macro call. Think of them as pseudo-code, in order
to discuss the topic. If you had planned to execute a sphere{} instruction a
million times, then replace the do_stuff statements with sphere{} statements
TEN times (for the last guy who pointed out an off-by-one error).

As far as performance between declaring a variable, and calling a macro, I
haven't written anything to test that out.

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