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From: Redbeard (MDJohnson)
Subject: Bug with large image sizes (Win?)
Date: 11 Sep 2001 00:38:16
Message: <3b9d9538@news.povray.org>
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I was trying out the two heightfield examples in textures/patterns
(slopemt.pov and mountain.pov) and decided to run the height field files at
a large size. In doing so, I accidently entered the following:
+w4000 +h30000
When the render window came up, I got a message box saying "Initialize
display - Fatal Error" and the usual "StretchDIBits() failed ! (Windows
error) in the render window. I expected that (that is a *really* big image,
after all) but what I didn't expect was the following error in the message
tab:
Possible File Init Error: libpng: No IDTAs written into file
File Init Error: Cannot write PNG file.
I can understand Windows balking at such a large image, but libpng
shouldn't. IIRC, 30000 is well within the acceptable dimensions for PNG
files.
Michael
Win98SE, AMD Athlon 700, 192 MB RAM, POV-Ray 3.5b1
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"Redbeard (MDJohnson)" wrote:
>
>
> I can understand Windows balking at such a large image, but libpng
> shouldn't. IIRC, 30000 is well within the acceptable dimensions for PNG
> files.
>
so give us a Linux beta, please :)
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On Tue, 11 Sep 2001 09:04:41 +0200, tth wrote:
>"Redbeard (MDJohnson)" wrote:
>>
>>
>> I can understand Windows balking at such a large image, but libpng
>> shouldn't. IIRC, 30000 is well within the acceptable dimensions for PNG
>> files.
>>
> so give us a Linux beta, please :)
But why? Nobody uses Linux anyway, right? :)
--
#local R=<7084844682857967,0787982,826975826580>;#macro L(P)concat(#while(P)chr(
mod(P,100)),#local P=P/100;#end"")#end background{rgb 1}text{ttf L(R.x)L(R.y)0,0
translate<-.8,0,-1>}text{ttf L(R.x)L(R.z)0,0translate<-1.6,-.75,-1>}sphere{z/9e3
4/26/2001finish{reflection 1}}//ron.parker@povray.org My opinions, nobody else's
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On 11 Sep 2001 15:38:02 -0400, Ron Parker wrote:
>On Tue, 11 Sep 2001 09:04:41 +0200, tth wrote:
>>"Redbeard (MDJohnson)" wrote:
>>>
>>>
>>> I can understand Windows balking at such a large image, but libpng
>>> shouldn't. IIRC, 30000 is well within the acceptable dimensions for PNG
>>> files.
>>>
>> so give us a Linux beta, please :)
>
>But why? Nobody uses Linux anyway, right? :)
Speaking of the Linux beta, for whatever the information is worth I'd
like to point out that the under-development Linux version of 3.5 was
more than happy to render at least the first 300 lines of a 4000x30000
PNG of a randomly-chosen test image.
--
#macro R(L P)sphere{L __}cylinder{L P __}#end#macro P(_1)union{R(z+_ z)R(-z _-z)
R(_-z*3_+z)torus{1__ clipped_by{plane{_ 0}}}translate z+_1}#end#macro S(_)9-(_1-
_)*(_1-_)#end#macro Z(_1 _ __)union{P(_)P(-_)R(y-z-1_)translate.1*_1-y*8pigment{
rgb<S(7)S(5)S(3)>}}#if(_1)Z(_1-__,_,__)#end#end Z(10x*-2,.2)camera{rotate x*90}
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On 11 Sep 2001 16:39:00 -0400, Ron Parker wrote:
>On 11 Sep 2001 15:38:02 -0400, Ron Parker wrote:
>>On Tue, 11 Sep 2001 09:04:41 +0200, tth wrote:
>>>"Redbeard (MDJohnson)" wrote:
>>>>
>>>>
>>>> I can understand Windows balking at such a large image, but libpng
>>>> shouldn't. IIRC, 30000 is well within the acceptable dimensions for PNG
>>>> files.
>>>>
>>> so give us a Linux beta, please :)
>>
>>But why? Nobody uses Linux anyway, right? :)
>
>Speaking of the Linux beta, for whatever the information is worth I'd
>like to point out that the under-development Linux version of 3.5 was
>more than happy to render at least the first 300 lines of a 4000x30000
>PNG of a randomly-chosen test image.
(translated: I have a Linux version and you don't! nyah!)
Just kidding, of course. We're working hard on getting a beta of the Linux
version out, but it probably won't happen for a while yet.
--
#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{rgbt 1}hollow interior{media{emission T}}finish{
reflection.1}}#end Z(-x-x.2y)Z(-x-x.4x)camera{location z*-10rotate x*90}
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Ron Parker wrote:
> (translated: I have a Linux version and you don't! nyah!)
>
> Just kidding, of course. We're working hard on getting a beta of the Linux
> version out, but it probably won't happen for a while yet.
:-(
:'(
As soon as you can, I can give it a good workout. It's just been ages since I've
gone to Windows at home.
--
Wind the Frog!
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"Ron Parker" <ron### [at] povray org> wrote in message
news:slr### [at] fwicom...
. . .
>
> Speaking of the Linux beta, for whatever the information is worth I'd
> like to point out that the under-development Linux version of 3.5 was
> more than happy to render at least the first 300 lines of a 4000x30000
> PNG of a randomly-chosen test image.
>
. . .
That means, then, it is a bug in the Windows version and not the core. When
I tried it under Windows, it didn't even try. Of course, I'm not planning
on rendering an image that large, but I do render 16000 x 12000 images, and
that fails too. If I turn of the display, it works fine, though. I'll just
have to remember to do that for the time being. What would be nice is that
if the render window fails, WINPOV automagically shuts off the render
display.
Michael
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Ron Parker <ron### [at] povrayorg> wrote:
: We're working hard on getting a beta of the Linux
: version out, but it probably won't happen for a while yet.
Does this mean "linux binaries" or "generic unix source"?
--
#macro N(D,I)#if(I<6)cylinder{M()#local D[I]=div(D[I],104);M().5,2pigment{
rgb M()}}N(D,(D[I]>99?I:I+1))#end#end#macro M()<mod(D[I],13)-6,mod(div(D[I
],13),8)-3,10>#end blob{N(array[6]{11117333955,
7382340,3358,3900569407,970,4254934330},0)}// - Warp -
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Warp wrote:
>
> Does this mean "linux binaries" or "generic unix source"?
For the beta, I guess it will be binaries. If only to
successfully implement the beta expiration date.
--
Adrien Beau - adr### [at] freefr - http://adrien.beau.free.fr
Mes propos n'engagent que moi et en aucun cas mes employeurs
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On 12 Sep 2001 10:52:37 -0400, Warp wrote:
>Ron Parker <ron### [at] povrayorg> wrote:
>: We're working hard on getting a beta of the Linux
>: version out, but it probably won't happen for a while yet.
>
> Does this mean "linux binaries" or "generic unix source"?
Linux binaries, for the same reason Windows source isn't available yet.
--
plane{-z,-3normal{crackle scale.2#local a=5;#while(a)warp{repeat x flip x}rotate
z*60#local a=a-1;#end translate-9*x}pigment{rgb 1}}light_source{-9red 1rotate 60
*z}light_source{-9rgb y rotate-z*60}light_source{9-z*18rgb z}text{ttf"arial.ttf"
"RP".01,0translate-<.6,.4,.02>pigment{bozo}}light_source{-z*3rgb-.2}//Ron Parker
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