POV-Ray : Newsgroups : povray.beta-test : Known Bugs 7 Jan 2001 Server Time
30 Jul 2024 06:27:19 EDT (-0400)
  Known Bugs 7 Jan 2001 (Message 1 to 5 of 5)  
From: Mike Williams
Subject: Known Bugs 7 Jan 2001
Date: 6 Jan 2002 20:10:03
Message: <s0xcSBA2QPO8EwPL@econym.demon.co.uk>
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 (job000189)
(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

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

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)

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

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

Bug with blobs and media (job000189)
(possibly related to  blob surface develops holes when "radius" is very
small)
http://news.povray.org/3be5f0b2@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

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

Re: trivial question on topic (job000038)
(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 (job000197)
(rendering without light buffers (-UL) puts the shadows back)
http://news.povray.org/3bfd4d63@news.povray.org

double_illuminate only works with direct lighting (job000207)
http://news.povray.org/3BF6F1FE.D21B0C6@oreka.com

no_image, merge and shadows (job000198)
(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)
http://news.povray.org/3bdf24b3$1@news.povray.org

Re: triangle texture interpolation (job000199)
(the second texture is on the first point and the third texture is used
on the second and third points)
http://news.povray.org/3C0A8288.DDA0905B@free.fr

Blob component textures transformed twize (job000189)
http://news.povray.org/3bf70645@news.povray.org

Crash with no objects in scene
http://news.povray.org/3bd985b0@news.povray.org
(also reported as http://news.povray.org/3C19B9EA.D2E16FBC@gmx.de

bug in sphere_sweep for removing parts of an object (job000200)
(discontinuous normals on inverse of sphere_sweep)
http://news.povray.org/3C1A5D47.EA38F6E5@amc.uva.nl

color dot operators (job000201)
((Color.red) doesn't work as a macro parameter)
http://news.povray.org/ofpr1ug9r6q3cak417pmj72bck6ufmgbtg@4ax.com

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

Povray main window disappears during rendering
(Possibly the same as the above)
http://news.povray.org/3c1350f4@news.povray.org

Bicubic patch triangles disappear (job000202)
(When the triangles are fairly small)
http://news.povray.org/3c23b26c@news.povray.org

Strange alpha channel bug
http://news.povray.org/3c1168c5$1@news.povray.org

installer behaves strangely
(one would expect povray to install after pressing the "next" button and
not the "button")
http://news.povray.org/Xns916AE9B08012frankverlaathotmailc@204.213.191.2
26

Array assignment crash (job000203)
http://news.povray.org/3bcc54ab$1@news.povray.org

Keep Single Instance (always does, no matter setting)
(Fixed in some environments)
http://news.povray.org/3c0b0881$1@news.povray.org

problem with transparent image_maps
http://news.povray.org/3c24d1b3@news.povray.org (cancelled)
http://news.povray.org/eGSwuBAritK8EwLH@econym.demon.co.uk

Photon Problems (job000204)
(Rendering the file makes the image strangely bright)
http://news.povray.org/3bc4d0a9$1@news.povray.org

crash during debugging of parsing (job2005)
http://news.povray.org/332m2uspk9nfqfq6g7oc8qtmkcu5higjs7@4ax.com

#macro crush (job000206)
http://news.povray.org/3c2c78cf$1@news.povray.org

crash with loop (job000205)
http://news.povray.org/3c2cb9b7@news.povray.org

CSG difference with text
(Text objects appear to be very slightly tilted)
http://news.povray.org/3c304eaf@news.povray.org

Julia object bug (Michael McKnight)
(Looks rather like coincident surfaces)
http://news.povray.org/3839f08c@news.povray.org

Little bug in the editor?
(can get confused about whether the file is saved)
http://news.povray.org/3a1e2559@news.povray.org

tiff problems in reading (including crash, including [doc])
http://news.povray.org/n96b3uk1ft7mvb991s3htjt14ekb7j8fn7@4ax.com

Little render window bug?
http://news.povray.org/3c3746d6@news.povray.org

crash with some boxes /infinite boxes
http://news.povray.org/3c375d62$1@news.povray.org

#while crash..
http://news.povray.org/3c38646f@news.povray.org

Slow render time after several runs
http://news.povray.org/3bd40c6d$1@news.povray.org



        FIXED IN NEXT BETA

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

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

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

VRand_in_Obj function - syntax error
(Stream value should be last, rather than first)
http://news.povray.org/3bc423e5@news.povray.org

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

[bug] orthographic camera bug? (job000208)
(objects sometimes disappear when the orthographic camera is used)
http://news.povray.org/3bdca5eb@news.povray.org

Re: Known Bugs 24 Dec 2001 (beta 9)
(garbage text in Mac message window)
http://news.povray.org/3C2A7123.E923B0B4@spiritone.com

Function (optimization?) bug
('funciton{-y/1/2}' should be same as 'function{-y/1/(2)}')
http://news.povray.org/3c27fd29$1@news.povray.org

another crash with max_intersections
http://news.povray.org/j8fo2u8mbo97gi3as0udmab7t9ttap2iom@4ax.com


-- 
Mike Williams
Gentleman of Leisure


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From: Kari Kivisalo
Subject: Re: Known Bugs 7 Jan 2001
Date: 7 Jan 2002 04:50:52
Message: <3C396FA6.F5CBF6AE@engineer.com>
Mike Williams wrote:
>
> 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

As I understand the fix seemd to break the Cornell test
scene. Seemed, because it was done with patched MP with
a spotlight bug contributing to the confusion.


_____________
Kari Kivisalo


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From:
Subject: Re: Known Bugs 7 Jan 2001
Date: 7 Jan 2002 05:22:17
Message: <dcti3ugq3o82f618m6l19vhm51c4ql8ovc@4ax.com>
On Mon, 7 Jan 2002 01:04:54 +0000, Mike Williams <mik### [at] nospamplease> wrote:
> Julia object bug (Michael McKnight)
> (Looks rather like coincident surfaces)
> http://news.povray.org/3839f08c@news.povray.org

perhaps nothing important but your comment in () is mistaken becouse in original
post it sounds "looks like a 'coincident surfaces' type of problem, though of
course it is not."

ABX


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From: Thorsten Froehlich
Subject: Re: Known Bugs 7 Jan 2001
Date: 7 Jan 2002 07:21:52
Message: <3c3992e0@news.povray.org>
In article <s0x### [at] econymdemoncouk> , Mike Williams 
<mik### [at] nospamplease>  wrote:

> Isosurfaces *much* slower in beta 7?
> (isosurfaces with "evaluate" are now very slow)
> http://news.povray.org/3bdf24b3$1@news.povray.org

This is ***not*** a bug.  It is a problem with the scene.  How often do I
have to explain this???

    Thorsten

____________________________________________________
Thorsten Froehlich
e-mail: mac### [at] povrayorg

I am a member of the POV-Ray Team.
Visit POV-Ray on the web: http://mac.povray.org


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From: Warp
Subject: Re: Known Bugs 7 Jan 2001
Date: 7 Jan 2002 08:58:17
Message: <3c39a979@news.povray.org>
Thorsten Froehlich <tho### [at] trfde> wrote:
: This is ***not*** a bug.  It is a problem with the scene.  How often do I
: have to explain this???

  "It doesn't work as I want, so it must be a bug." ;)

-- 
#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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