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Can I download somewhere (unofficial) vesion of PovRAY that will allow to
use i.e. 10.000 samples in radiosity (count) ?
Btw, I didnt follow the dicussion in .programming about that subject, but
afair problem with more samples where that building table of directions to
use in radiosity was very slow process, and therefore 1600 precalculated
directions/samples are encoded into POV source.
And storing array big enought to hold 1601,1602,1603 .. 10000 samples would
dramaticly increase siez of pov install file.
My sugesstion - maybe store only few values >= 1600, i.e.
1..1600,
1700,1800,1900,2000
3000,4000,...10000
if CPU time is needed to calculate such arrays I do have pleanty of free
CPU time (curently under WinXP) and I would ve hapy to help.
--
#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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In article <Xns### [at] 204 213191226>, "Rafal 'Raf256' Maj"
<spa### [at] raf256com> wrote:
> My sugesstion - maybe store only few values >= 1600, i.e.
> 1..1600,
> 1700,1800,1900,2000
> 3000,4000,...10000
You didn't understand the problem at all...
Thorsten
____________________________________________________
Thorsten Froehlich, Duisburg, Germany
e-mail: tho### [at] trfde
Visit POV-Ray on the web: http://mac.povray.org
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> Can I download somewhere (unofficial) vesion of PovRAY that will allow to
> use i.e. 10.000 samples in radiosity (count) ?
With mlpov, after adding keyword "halton" in your radiosity settings you can
use "count 10000" (but honestly I doubt your scene requires so extreme -and
painfully long to render- settings .. :)
M
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mae### [at] hotmailcom news:3fd77a3b$1@news.povray.org
> With mlpov, after adding keyword "halton" in your radiosity settings
> you can use "count 10000" (but honestly I doubt your scene requires so
> extreme -and painfully long to render- settings .. :)
Oh yest, it does :) The scene consist of only 3 objects (I added more
later, but even without them about 10.000 samples is a must if scene is
going to have any sense ;)
Anyone quessing what is this scene :> ?
--
#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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Are you sure the problems you are having are related to a too low
count value and not something else?
--
#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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war### [at] tagpovrayorg news:3fd77daf@news.povray.org
> Are you sure the problems you are having are related to a too low
> count value and not something else?
Yes, this is very special case of image.
Obscure camera box to be precise.
It's just "art for art" I wanned to see if Pov can render such image
without any "cheating" like putting texture on back of box.
--
#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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> Oh yest, it does :) The scene consist of only 3 objects (I added more
> later, but even without them about 10.000 samples is a must if scene is
> going to have any sense ;)
>
> Anyone quessing what is this scene :> ?
a scene to test caustics with pure radiosity? I tried it recently with MLPov,
using 16000 samples (I was lazy, so I just added a zero to an older scene :p ),
but even that wasn't enough to give good results :-/
cu!
--
camera{location-z*3}#macro G(b,e)b+(e-b)*(C/50)#end#macro L(b,e,k,l)#local C=0
;#while(C<50)sphere{G(b,e),.1pigment{rgb G(k,l)}finish{ambient 1}}#local C=C+1
;#end#end L(y-x,y,x,x+y)L(y,-x-y,x+y,y)L(-x-y,-y,y,y+z)L(-y,y,y+z,x+y)L(0,x+y,
<.5,1,.5>,x)L(0,x-y,<.5,1,.5>,x) // ZK http://www.povplace.be.tf
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zeg### [at] studentkuleuvenacbe news:3fd78344@news.povray.org
> a scene to test caustics with pure radiosity?
No (but the idea is quite interesting :) - see next post.
Btw with page is the oryginal MlPov home page?
--
#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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On 10 Dec 2003 15:16:09 -0500, "Rafal 'Raf256' Maj" <spa### [at] raf256com> wrote:
>Obscure camera box to be precise.
Do you meen a camera obscura?
http://brightbytes.com/cosite/what.html
If so, I am impressed and want to see the end result.
Regards
Stephen
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> > a scene to test caustics with pure radiosity?
>
> No (but the idea is quite interesting :) - see next post.
Well, in a way what you're trying to do is more or less the same thing :)
> Btw with page is the oryginal MlPov home page?
Good question, it seems like I accidentally downloaded MLPov 0.81 instead of
0.83 on my new pc, so I doubt I got it from the homepage :)
cu!
--
camera{location-z*3}#macro G(b,e)b+(e-b)*(C/50)#end#macro L(b,e,k,l)#local C=0
;#while(C<50)sphere{G(b,e),.1pigment{rgb G(k,l)}finish{ambient 1}}#local C=C+1
;#end#end L(y-x,y,x,x+y)L(y,-x-y,x+y,y)L(-x-y,-y,y,y+z)L(-y,y,y+z,x+y)L(0,x+y,
<.5,1,.5>,x)L(0,x-y,<.5,1,.5>,x) // ZK http://www.povplace.be.tf
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