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"Ron Parker" <ron### [at] povray org> wrote in message
news:slr### [at] fwicom...
> Parse time is slightly worse, because I removed the short-circuit on the
inner
> (V) loop, but the results are the same...
>
> #local T=-2;#while(T<2)#local U=2;#while(U>-2)#macro
M(X,Y,V,W)#while(V<9)#local
> Z=X;#local X=X*X-Y*Y+U;#local Y=2*Z*Y+T;#if(X*X+Y*Y>4)#local
W=0;#end#local V=V+
> 1;#end#if(W)#macro L(S)box{0,.02 pigment{rgb 9}translate<T+S,U+1,6>}#end
L(-2)L(
> 0)L(1)L(2)#end#end M(-U,-T,0,1)#local U=U-.03;#end#local T=T+.05;#end//Tom
Melly
>
Looking at this in detail, the use of a constant passed to a macro puzzled
me, until I realised it saves on #locals. It makes sense if you can save on
2 or more of 'em.
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"Warp" <war### [at] tagpovrayorg> wrote in message
news:3d36f9a2@news.povray.org...
>
> Of course you could do it this way. Besides being shorter, it's quite
> faster:
<snip>
cheater....
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Tom Melly <tom### [at] tomandlucouk> wrote:
> cheater....
Why using a builtin function is cheating?-)
--
#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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"Warp" <war### [at] tagpovrayorg> wrote in message news:3d37397e@news.povray.org...
> Tom Melly <tom### [at] tomandlucouk> wrote:
> > cheater....
>
> Why using a builtin function is cheating?-)
>
It's like using a bottom double.
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"Ron Parker" <ron### [at] povrayorg> wrote in message
news:slr### [at] fwicom...
> > Ta - btw when are you coming over to the UK again? (v.soon iirc).
>
> Actually, I'm not going to make it. (and I've never actually been there
> before, either.)
Sorry, that's "again" as in "I forgot, can you tell me again", not "again" as in
"they're letting you back in?"
Shame - what happened?
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On Fri, 19 Jul 2002 09:53:33 +0100, Tom Melly wrote:
> Shame - what happened?
Mainly we just decided it wasn't in the budget this year due to some somewhat
unexpected expenses (taxes...)
--
#macro R(L P)sphere{L F}cylinder{L P F}#end#macro P(V)merge{R(z+a z)R(-z a-z)R(a
-z-z-z a+z)torus{1F clipped_by{plane{a 0}}}translate V}#end#macro Z(a F T)merge{
P(z+a)P(z-a)R(-z-z-x a)pigment{rgbf 1}hollow interior{media{emission 3-T}}}#end
Z(-x-x.2x)camera{location z*-10rotate x*90normal{bumps.02scale.05}}
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Tom Melly <tom### [at] tomandlucouk> wrote:
>> Why using a builtin function is cheating?-)
> It's like using a bottom double.
Why do it yourself when you can make POV-Ray to do it for you?
--
#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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"Warp" <war### [at] tagpovrayorg> wrote in message news:3d3825f4@news.povray.org...
> Tom Melly <tom### [at] tomandlucouk> wrote:
> >> Why using a builtin function is cheating?-)
>
> > It's like using a bottom double.
>
> Why do it yourself when you can make POV-Ray to do it for you?
>
same reason you don't use 3dsmax?
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Tom Melly <tom### [at] tomandlucouk> wrote:
>> Why do it yourself when you can make POV-Ray to do it for you?
> same reason you don't use 3dsmax?
Does 3dsmax have a mandelbrot pattern? And how it is easier to use in
3 lines of code?
--
#macro N(D)#if(D>99)cylinder{M()#local D=div(D,104);M().5,2pigment{rgb M()}}
N(D)#end#end#macro M()<mod(D,13)-6mod(div(D,13)8)-3,10>#end blob{
N(11117333955)N(4254934330)N(3900569407)N(7382340)N(3358)N(970)}// - Warp -
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"Tom Melly" <tom### [at] tomandlucouk> wrote in news:3d383a42@news.povray.org
>> Why do it yourself when you can make POV-Ray to do it for you?
> same reason you don't use 3dsmax?
3dsmax is quite expenive ;) and - imho pov engine is better in some
catogories
--
> A jedyne co czytam, ze to terrorysci internetowi z echelonu planuja
> kolejny atak na centrale TPSA
- Expert vel Jacek (obecnie gol### [at] pocztaonetpl)
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