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Hello,
some time ago I warned about possible bug in photons/dispersion code. Now,
I confirmed bug (on another computer), so maybe it's worth further
inwestigation ?
Sometimes in scenes using photns + dispersion, dispersion settings are
ignored (and after re-rendering scene with SAME .pov file - sometimes it is
rendered o.k., and sometimes - without dispersion).
Details are here :
http://raf256.com/pov/bug?id=1
--
#macro g(U,V)(.4*abs(sin(9*sqrt(pow(x-U,2)+pow(y-V,2))))*pow(1-min(1,(sqrt(
pow(x-U,2)+pow(y-V,2))*.3)),2)+.9)#end#macro p(c)#if(c>1)#local l=mod(c,100
);g(2*div(l,10)-8,2*mod(l,10)-8)*p(div(c,100))#else 1#end#end light_source{
y 2}sphere{z*20 9pigment{function{p(26252423)*p(36455644)*p(66656463)}}}//M
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Rafal 'Raf256' Maj wrote:
>
> Hello,
> some time ago I warned about possible bug in photons/dispersion code. Now,
> I confirmed bug (on another computer), so maybe it's worth further
> inwestigation ?
>
> Sometimes in scenes using photns + dispersion, dispersion settings are
> ignored (and after re-rendering scene with SAME .pov file - sometimes it is
> rendered o.k., and sometimes - without dispersion).
>
> Details are here :
> http://raf256.com/pov/bug?id=1
That is the shortest possible code you could come up with that will produce
the problem !?!
--
Ken Tyler
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Ken <tyl### [at] pacbell net> wrote in news:3DC377D6.A63DF796@pacbell.net
>
>
> Rafal 'Raf256' Maj wrote:
>>
>> Hello,
>> some time ago I warned about possible bug in photons/dispersion code.
>> Now, I confirmed bug (on another computer), so maybe it's worth
>> further inwestigation ?
>>
>> Sometimes in scenes using photns + dispersion, dispersion settings
>> are ignored (and after re-rendering scene with SAME .pov file -
>> sometimes it is rendered o.k., and sometimes - without dispersion).
>>
>> Details are here :
>> http://raf256.com/pov/bug?id=1
>
> That is the shortest possible code you could come up with that will
> produce the problem !?!
no, this is mentioned as to do item :) but genraly - *any* scene with
- photons
- dispersion
- sphere
- plabne
--
#macro g(U,V)(.4*abs(sin(9*sqrt(pow(x-U,2)+pow(y-V,2))))*pow(1-min(1,(sqrt(
pow(x-U,2)+pow(y-V,2))*.3)),2)+.9)#end#macro p(c)#if(c>1)#local l=mod(c,100
);g(2*div(l,10)-8,2*mod(l,10)-8)*p(div(c,100))#else 1#end#end light_source{
y 2}sphere{z*20 9pigment{function{p(26252423)*p(36455644)*p(66656463)}}}//M
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