POV-Ray : Newsgroups : povray.beta-test : Known bugs 2 Dec 2001 (beta 8) Server Time
2 Nov 2024 17:04:02 EDT (-0400)
  Known bugs 2 Dec 2001 (beta 8) (Message 1 to 9 of 9)  
From: Mike Williams
Subject: Known bugs 2 Dec 2001 (beta 8)
Date: 1 Dec 2001 23:16:21
Message: <aBQBPBAAmaC8Ew76@econym.demon.co.uk>
KNOWN BUGS

Blob problem (job000189)
and Blob : Toward a solution
(blob surface develops holes when "radius" is very small)
http://news.povray.org/3b99052c@news.povray.org
http://news.povray.org/3B991C90.D715B7A3@free.fr

Superellipsoid epsilon to big ? (job000190)
(strange dark patches occur on a superellipsoid when the east-west-
exponent is set very small)
http://news.povray.org/3b992a81@news.povray.org

Additional (?) blob bug
(blob component disappears when radius is 317 or greater)
http://news.povray.org/Xns9115B92CF7D8ACQ@204.213.191.226
(also reported as: Blob rendering error (job000136))
http://news.povray.org/Xns91203DC7F3CCQ@204.213.191.226

hf_gray_16 + png creates wrong output image (job000173)
(global_settings {hf_gray_16} causes "Cannot open output file")
http://news.povray.org/3BA3BAE6.4671C0BB@free.fr

Small window title bug
(Title switches back to "POV-Ray for Windows" after minimize or
restore.)
http://news.povray.org/3ba92966$1@news.povray.org

Rendering animation (MS Windows) (job000178)
(Message that indicates the frame to be render is displayed AFTER the
rendering.)
http://news.povray.org/3BAC1D0C.74A4A503@free.fr

sin(X)^sin(X) -> crash! (job000179 and job000180)
http://news.povray.org/3baf7992@news.povray.org

Spline bug (job000182)
(The spline path is all wrong when certain time values are used.)
http://news.povray.org/3bb41dc8@news.povray.org

Strange spline problem (job000181)
(Changes from render to render. Control points are sometimes missing.)
http://news.povray.org/Xns9136AC2E64F60seed7@povray.org

Highlight bug (job000137)
(highlights are sometimes visible where they should be in shadow)
http://news.povray.org/3bb4cf08@news.povray.org

Macro bug (job000146)
(POV can dereference a deallocated pointer if you return a local from a
macro.)
http://news.povray.org/3BB4ED11.8EC69CEC@hotmail.com
(also reported as: strings operations crash with both compiles
http://news.povray.org/e3piut8anmf4cli4pnfmstadgc3nleqvb2@4ax.com)

Bug with intersection stack (with crash)(job000175)
http://news.povray.org/5f13rtc0v0rso4fk7lut5e0980qa9g756b@4ax.com

Radiosity sampling, with fix method (job000177)
(radiosity sample counter is reset to the start every time, sampling
artefacts are produced)
http://news.povray.org/3BC5A13E.9C022BD6@reading.ac.uk

Slow rendering when using +ua and antialiasing method 1 (job000191)
(No details available)
http://news.povray.org/3bbf6347@news.povray.org

Delayed syntax checking (job000192)
(declare without the "#" can cause a much later line to fail to parse
Parser will ignore the first token following old-style declares without
a #.)
http://news.povray.org/AM3LOAABMO27EwFh@econym.demon.co.uk

[bug] orthographic camera bug?
(objects sometimes disappear when the orthographic camera is used)
http://news.povray.org/3bdca5eb@news.povray.org

Bug: dispersion_samples affects photon brightness (job000193)
http://news.povray.org/MPG.1631c5fca936293298969e@news.povray.org

Jpeg and memory problem during animations (job000194)
(It seems that some memory is not properly released between frames when
a jpeg file is used)
http://news.povray.org/3be2ef0d@news.povray.org

Bug with blobs and media
(possibly related to  blob surface develops holes when "radius" is very
small)
http://news.povray.org/3be5f0b2@news.povray.org

Render Window Bug
(Render window pops up when application minimised, after which the
application doesn't open when clicked on the task bar.)
http://news.povray.org/3bde157e@news.povray.org

Another strange photon behavior (job000195)
(a: bright colored caustics. b: holes/circular black spots)
http://news.povray.org/MPG.16510f3e44067d3f9896ae@news.povray.org

panoramic projection bug? (job000196)
(When "angle" keyword within camera statement appears after "panoramic"
keyword then looks like ignored.)
http://news.povray.org/avnfut8fof5ualgf8hnrtpl1knlg8828sp@4ax.com

Alpha problems: text is not antialiased (job000187)
(black objects are not antialiased on Unix and Windows versions, alpha
is not correctly output on Mac)
http://news.povray.org/3bea5a84$1@news.povray.org

Black outline in smooth meshes
(The outline of smooth meshes exhibit black dots or areas (which go away
with double_illuminate))
http://news.povray.org/3bf6794e$1@news.povray.org

User_Abort_Command
(User_Abort_Command does not seem to work at all)
http://news.povray.org/Xns913D9F7268736seed7@povray.org

First report from bugreports
http://news.povray.org/u12outsm2kso3k5ef4lp26ogm5cvsm46ge@4ax.com

Re: trivial question on topic
(Poly Object Bug: heart has a dark line of artifacts)
http://news.povray.org/3BEBEB4C.CA854309@pacbell.net

Camera is off by half a pixel
http://news.povray.org/3bccc696@news.povray.org

Light_sources in light_groups don't cast shadows
(rendering without light buffers (-UL) puts the shadows back)
http://news.povray.org/3bfd4d63@news.povray.org

Save during render
(is very slow)
http://news.povray.org/jhaiduce@engin.umich.edu

double_illuminate only works with direct lighting
http://news.povray.org/3BF6F1FE.D21B0C6@oreka.com

no_image, merge and shadows
(setting no_image to an object in a merge causes that object to stop
casting shadows)
http://news.povray.org/vqfd0ucm5276q9j8sdh34afjliapc1kj0n@4ax.com

Isosurfaces *much* slower in beta 7?
(isosurfaces with "evaluate" are now very slow)
(was said to be fixed in next beta, but isn't fixed in beta 8)
http://news.povray.org/3bdf24b3$1@news.povray.org

rand.inc VRand_In_Sphere flaw
(VRand_In_Sphere doesn't give uniform distribution)
(was said to be fixed in next beta, but isn't fixed in beta 8)
http://news.povray.org/3bc64790$1@news.povray.org

problem with normals/functions: crash!
(if an isosurface is the first function parsed, then things go horribly
wrong)
http://news.povray.org/MPG.16724448f4beb4ad9896c3@news.povray.org

Isosurface : 2 bugs
(int() causes crash)
http://news.povray.org/3c082dbe@news.povray.org

IsoCacti.pov
(displays 754 evaluate warnings, most with incorrect values)
http://news.povray.org/3c08c36c$1@news.povray.org




        BUGS FIXED IN BETA 8

marble + turbulence bug
(marble turbulence now looks very different)
http://news.povray.org/Xns914AC563F6C36seed7@povray.org

function re-declaration crash
(Intel compilation only: previously reported as "loop bug" for beta 5)
(also causes crackle2.pov and crackle3.pov to crash under the Intel
compile)
http://news.povray.org/3bdfcdf7@news.povray.org

Are '&' and '|' switched?
(when used in a function operating on numbers they have the opposite
effect)
http://news.povray.org/Xns9128A184570B3seed7@povray.org

function(a){a<=0} returns the wrong value when a=0
http://news.povray.org/Xns9128A519E6F15seed7@povray.org

When outputting to PNG, the wrong gamma correction value is written
http://news.povray.org/3be12811@news.povray.org

agate pattern broken
(different results with intel and msvc compile)
http://news.povray.org/3BE46299.421893B7@gmx.de

Bug with declaration with no dimensions
http://news.povray.org/scpitt851apfq5r6qtsoi1vpupt77g829s@4ax.com

Status line bug
(status line keeps saying "Parsing..." instead of telling me what the
error was)
http://news.povray.org/3bde062f@news.povray.org

WinPov crash with too many max_gradient warnings
(previously reported as: "[Bug] Output of too many evaluations cause
strange behavior", but it didn't actually crash beta 4 or  beta 5)
http://news.povray.org/3BE026F0.B59858FA@gmx.de

Using charset sys crashes povray
http://news.povray.org/3bfb4d8c@news.povray.org

Marble + Turbulence + Isosurface ( bug ? )
(turbulent marble looks very different when the rays pass through or
close to an isosurface)
http://news.povray.org/3c065976@news.povray.org


-- 
Mike Williams
Gentleman of Leisure


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From: Thorsten Froehlich
Subject: Re: Known bugs 2 Dec 2001 (beta 8)
Date: 2 Dec 2001 07:56:30
Message: <3c0a24fe@news.povray.org>
In article <aBQ### [at] econymdemoncouk> , Mike Williams 
<mik### [at] nospamplease>  wrote:

> Isosurfaces *much* slower in beta 7?
> (isosurfaces with "evaluate" are now very slow)
> (was said to be fixed in next beta, but isn't fixed in beta 8)
> http://news.povray.org/3bdf24b3$1@news.povray.org

It is fixed.  The other problems with isosurfaces may obscure the fix in
scenes which exhibit the other problem as well.

> problem with normals/functions: crash!
> (if an isosurface is the first function parsed, then things go horribly
> wrong)
> http://news.povray.org/MPG.16724448f4beb4ad9896c3@news.povray.org
>
> Isosurface : 2 bugs
> (int() causes crash)
> http://news.povray.org/3c082dbe@news.povray.org
>
> IsoCacti.pov
> (displays 754 evaluate warnings, most with incorrect values)
> http://news.povray.org/3c08c36c$1@news.povray.org

All the same problem.

    Thorsten

____________________________________________________
Thorsten Froehlich, Duisburg, Germany
e-mail: tho### [at] trfde

Visit POV-Ray on the web: http://mac.povray.org


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From: Warp
Subject: Re: Known bugs 2 Dec 2001 (beta 8)
Date: 2 Dec 2001 08:30:33
Message: <3c0a2cf9@news.povray.org>
Mike Williams <mik### [at] nospamplease> wrote:
: Isosurfaces *much* slower in beta 7?
: (isosurfaces with "evaluate" are now very slow)
: (was said to be fixed in next beta, but isn't fixed in beta 8)

  What do you mean "isn't fixed in beta 8".
  AFAIK the original problem is not there. There are other problems introduced,
but that one certainly not.

-- 
#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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From: Mike Williams
Subject: Re: Known bugs 2 Dec 2001 (beta 8)
Date: 3 Dec 2001 13:03:23
Message: <Aw3XzMAc$rC8EwKy@econym.demon.co.uk>
Wasn't it Thorsten Froehlich who wrote:
>In article <aBQ### [at] econymdemoncouk> , Mike Williams 
><mik### [at] nospamplease>  wrote:
>
>> Isosurfaces *much* slower in beta 7?
>> (isosurfaces with "evaluate" are now very slow)
>> (was said to be fixed in next beta, but isn't fixed in beta 8)
>> http://news.povray.org/3bdf24b3$1@news.povray.org
>
>It is fixed.  The other problems with isosurfaces may obscure the fix in
>scenes which exhibit the other problem as well.

I did some timings, and on my machine isosurfaces with "evaluate" still
run very nearly as slowly as they did in beta 7, and *much* more slowly
than the same isosurfaces without "evaluate".

-- 
Mike Williams
Gentleman of Leisure


Post a reply to this message

From: Thorsten Froehlich
Subject: Re: Known bugs 2 Dec 2001 (beta 8)
Date: 3 Dec 2001 15:09:44
Message: <3c0bdc08@news.povray.org>
In article <Aw3XzMAc$rC8EwKy@econym.demon.co.uk> , Mike Williams 
<mik### [at] nospamplease>  wrote:

>>It is fixed.  The other problems with isosurfaces may obscure the fix in
>>scenes which exhibit the other problem as well.
>
> I did some timings, and on my machine isosurfaces with "evaluate" still
> run very nearly as slowly as they did in beta 7, and *much* more slowly
> than the same isosurfaces without "evaluate".

Well, did I say they would be as fast or did i say the fix might be obscured
to the user because of the other problems?  The problem *is* fixed, no
matter how long you argue it isn't because I have the source code and know
what I changed...

    Thorsten


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From: Anders K 
Subject: Re: Known bugs 2 Dec 2001 (beta 8)
Date: 3 Dec 2001 15:24:27
Message: <3c0bdf7b@news.povray.org>
> Well, did I say they would be as fast or did i say the fix might be
obscured
> to the user because of the other problems?

If multiple bugs are contributing to the problem, can you really say the
problem is fixed untill all the bugs contributing to it are?


Post a reply to this message

From: Thorsten Froehlich
Subject: Re: Known bugs 2 Dec 2001 (beta 8)
Date: 3 Dec 2001 16:07:16
Message: <3c0be984@news.povray.org>
In article <3c0bdf7b@news.povray.org> , "Anders K." <and### [at] f2scom> wrote:

> If multiple bugs are contributing to the problem, can you really say the
> problem is fixed untill all the bugs contributing to it are?

Yes.  Unless you know the source code you can't understand why the first bug
was there and thus can't understand how it was fixed.  I am not going to
discuss every line that is fixed somewhere in the source code (which you
don't have) to justify my statement.  You either take it as is or you don't.
Discussing won't change my statement or the fact that this particular bug
was fixed.

    Thorsten


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From: Mike Williams
Subject: Re: Known bugs 2 Dec 2001 (beta 8)
Date: 21 Dec 2001 03:59:07
Message: <+2c4COAYBtI8Ew85@econym.demon.co.uk>
Wasn't it Thorsten Froehlich who wrote:
>In article <aBQ### [at] econymdemoncouk> , Mike Williams 
><mik### [at] nospamplease>  wrote:
>
>> problem with normals/functions: crash!
>> (if an isosurface is the first function parsed, then things go horribly
>> wrong)
>> http://news.povray.org/MPG.16724448f4beb4ad9896c3@news.povray.org
>>
>> Isosurface : 2 bugs
>> (int() causes crash)
>> http://news.povray.org/3c082dbe@news.povray.org
>>
>> IsoCacti.pov
>> (displays 754 evaluate warnings, most with incorrect values)
>> http://news.povray.org/3c08c36c$1@news.povray.org
>
>All the same problem.
>
>    Thorsten

Odd, then, that only one of it was fixed in Beta 9.

-- 
Mike Williams
Gentleman of Leisure


Post a reply to this message

From: Thorsten Froehlich
Subject: Re: Known bugs 2 Dec 2001 (beta 8)
Date: 21 Dec 2001 05:32:28
Message: <3c230fbc$1@news.povray.org>
In article <+2c4### [at] econymdemoncouk> , Mike Williams 
<mik### [at] nospamplease>  wrote:

> Odd, then, that only one of it was fixed in Beta 9.

The crash problems are fixed, I am very sure about this!

    Thorsten

____________________________________________________
Thorsten Froehlich, Duisburg, Germany
e-mail: tho### [at] trfde

Visit POV-Ray on the web: http://mac.povray.org


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