UV-mapped textures for parametrics are broken in POV-Ray 3.70 RC3, in cases where two (or more) parametrics overlap in a scene.

In the following scene, note how the texture per se is always taken properly from whichever parametric is in front, while the UV coordinates are erroneously taken always from the red parametric where both overlap, no matter whether it is in front or back.

camera {
  location  <0.0, 1.5, -3.0>
  direction 1.5*z
  right     x*image_width/image_height
  look_at   0
}

light_source { <-30, 30, -30> color rgb 1 }

#declare Param = parametric {
  function { u*v*sin (15*v) },
  function { v },
  function { u*v*cos (15*v) }
  0, 1
  contained_by { box { -1,1 } }
  accuracy 0.002
  precompute 15 x,y,z
  rotate 180*x
  translate  <0.3,0.5,0>
}

object {
  Param
  uv_mapping
  texture {
    pigment {
      gradient x frequency 3
      color_map {
        [0 color red .5 ]
        [1 color red 1 ]
      }
    }
  }
}

object {
  Param
  uv_mapping
  texture {
    pigment {
      gradient x frequency 7
      color_map {
        [0 color green .5 ]
        [1 color green 1 ]
      }
    }
  }
  rotate y*180
}

POV-Ray 3.62 renders the scene properly.

As this bug has been found during code inspection, the uderlying cause has already been identified; I’m currently working on a fix.

Hello,

this bug report relates to this thread: http://news.povray.org/povray.beta-test/thread/%3Cweb.4e0064d9a3970d212b256d410%40news.povray.org%3E/

In /unix/unixoptions.cpp around line 817:

while ( !Stream.eof() )
{
	// get and preprocess line
	std::getline(Stream, line);
	line = pre_process_conf_line(line);
	++line_number;
	// skip empty line
	if(line.length() == 0)
		continue;
        [...]
}

`Stream.eof()` could never be true as well as `line.length()` always can be zero, leading to an endless loop. In my case, the problem occurred due to my ~/.povray/3.7/povray.conf being a directory instead of a file.

To fix the problem, one has to consolidate this loop by not only checking for eofbit, but also for failbit and badbit of `Stream`. The getline() method on a directory does not set the eofbit, but it sets fail and bad (test: http://codepad.org/RiZGo3ia). According to http://www.cplusplus.com/reference/iostream/ios/operatornot/ fail and bad can be checked for by `!Stream`. A simple `if (!Stream) break;` within the loop fixes the problem (patch file attached).

Are there more missing checks on iostreams like this in the code? :) They should definitely be fixed.

Furthermore, one could think about using the boost filesystem library to be able to distinguish files and directories to provide good error messages.

Hope that helps,

Jan-Philip Gehrcke

Certain types of errors are being reported twice. For example:

Parse Error: Expected ‘numeric expression’, } found instead
Parse Error: Expected ‘object’, undeclared identifier ‘foo’

The first error was a user typo when not enough parameters were specified, and the later when calling a yet to be declared object.

During investigation it was also discovered that improperly formed scale statements also produced the double error report: <scale 1,0.5,1>

Verified on linux and windows platforms.

in the sample scenes, animations/raddem/raddem.ini is not parsable by current versions of povray. (3.7RC3 and upto #5476)

Radiosity= is a gone away option.(from a bit of time in the 3.7 branch)

The following SDL code causes a hard crash during parsing if _3024_dot_dat is undefined:

light_source {
    <0, 0, 0>
    color rgb 0.5*<1,0.905882,0.211765>
    fade_distance 500
    fade_power 1.6
    looks_like {_3024_dot_dat texture {
        pigment { rgbf <1,0.905882,0.211765,0.90> }
        finish { ambient 0.6 diffuse 0 phong 0.5 phong_size 40
            reflection 0.9
            refraction 1 ior 1.25
            }
        }
}    } 

The following scene reders differently with POV-Ray 3.7.0.RC3 than with POV-Ray 3.6.2:

camera
{
    right x*image_width/image_height
    location  <0, 0, -5>
    look_at   <0, 0, 0>
}

light_source
{
    <0,0,0>
    color rgb 1
    looks_like
    {
        box {
            <-1,-1,-0.1>, <1,1,0.1>
            pigment { wood }
            finish { ambient 5.0 diffuse 0 specular 0 phong 0 reflection 0 }
            scale 0.5
        }
    }
    translate <1,0,0>
}

plane
{
    <0, 1, 0>, -1
    texture
    {
        pigment { color rgb <0.5, 0.5, 0.55> }
        finish { specular 1.0 }
    }
}

See attachments for the output. As can be seen, POV-Ray 3.7 does translate the shape of the looks_like object along with the light source, but fails to translate the textures.

Hopefully platform specific, other ports are welcome to check their scaling code.

Reported originally in p.beta-test (28 january 2012) by Cousin Ricky (email dropped)

Symptom: crash on start of second frame rendering
Environment: Unix, with display of rendered picture, rendered picture does not fit at 1:1 on the display

Demo (adjust the H/W to your setting to get them larger, both or any of them):

global_settings { assumed_gamma 1 }
light_source { <-1, 1, -1> * 1000, rgb 1 }
sphere { 2.5 * z, 1 pigment { red 1 } }

povray +H2000 +W2000 +KI0 +KF1 +KFI0 +KFF10 code.pov

~scenes/advanced/optics.pov not rendering correctly. See the post in povray.beta-test “Photons not working as expected” for additional information.

Turns out the crand feature, which depends on a real random number generator (and hence has threading issues) was disabled early on during 3.7 development, and hasn’t been fixed yet. The code is commented out in line 2426/2427 of trace.cpp.

How to reproduce:

# An empty directory, an empty source file.
$ mkdir test && cd test && touch test.pov
# Generate the first 24 frames.
$ povray -D +KFF24 +Itest.pov +Otest.png
# Try to generate the 25th frame.
# `25' after `+KFF' can be changed to any integer greater than 24.
$ povray -D +C +KFF25 +Itest.pov +Otest.png

What happens:

==== [Parsing...] ==========================================================
Possible Parse Error: Cannot find file 'test.pov', even after trying to append
 file type extension.
Parse Error: Cannot open input file.
Fatal error in parser: Cannot parse input.
Render failed

OS: Gentoo AMD64 unstable
POV-Ray version: 3.7.0 rc5

Using POV-Ray 3.7 RC6 64bit for Windows
I have problems in the POV-Ray editor with ‘backspace’:

When using backspace at start of line
it does not only kill the return/line feed, but also
everything of the line what’s beneath the upper line.

Sample: (here ‘|’ is used for the current cursor position!)

//--------------------------------------
texture { pigment{ Red }
|         normal { bumps 0.5 scale 0.1 }
//--------------------------------------

hitting backspace results in:

//--------------------------------------
texture { pigment{ Red }| 0.5 scale 0.1 }
//--------------------------------------

and not as expected:

//--------------------------------------
texture { pigment{ Red }|         normal { bumps 0.5 scale 0.1 }
//--------------------------------------

With 3.6.2 and with RC3 (latest old beta I found on my computers)
this was no problem!

I already reported this on 17-Sept-2012 at
http://news.povray.org/povray.beta-test/thread/%3C5056f452%241%40news.povray.org%3E/

Recently, I have been rendering an animation with POV-Ray 3.7 RC 6 using radiosity, photons and backside illumination. Many frames contained artefacts like in the attached image file. Trying to eliminate those artefacts I observed the following:

• Rendering the same frame several times did not reproduce the artefacts or reproduced them differently. I.e., when I rendered a second (third, fourth, ...) time with +SF100 +EF100, the black space in the image was somewhere else or in some cases disappeared.
• With radiosity turned off, no such artefacts have happened since, even in the scenes where they happened with radiosity turned on.
• Turning off photons with radiosity still turned on did not remove the artefacts.
• Rendering with one thread on one CPU core instead of two threads on two cores did not change anything except the rendering time.
• Changing the radiosity settings I have not tried thoroughly, but at least raising or lowering count or error_bound does not seem to have any effect on this.

While POV-Ray was rendering, no other memory-intensive or CPU-intensive programs were running and POV-Ray itself did not report any error (just the usual warnings that some of the used features could change in future versions etc.). Render priotity was set to “high”.

When aborting a render when there are unfinished blocks among finished ones, under certain conditions some of those blocks are skipped when continuing the render later.

Improve native support for 2D primitives. Ideally a 1:1 mapping of SVG primitives/shapes. They go a long way to making diagrams look a lot better. Having to create image maps based on externally created bitmaps slows the workflow down a lot!

.../scenes/objects/fractal2.pov

in global_settings  "max_trace" should be "max_trace_level"

.../scenes/advanced/diffuse_back.pov

in global_settings  assumed_gamma statement should not be followed by a semicolon

.../scenes/advanced/blocks/stackernight.pov

in global_settings  "assummed_gamma" should be spelled "assumed_gamma"

.../scenes/portfolio/*.pov

in all files other than _empty.pov the parse stops at the lines containing "[frame_number-1]" I'm guessing it should be "[frame_number]-1"  

Hi,

when I’m trying to render a scene on my MacBook Air with the following .ini-settings, I get a failed assertion and the program halts.

Here are the .ini-Settings:

Width=640
Height=480

Test_Abort=Off
Continue_Trace=On
Pause_When_Done=Off
Verbose=On
Draw_Vistas=Off
Sampling_Method=1
Quality=9
Jitter=Off
Display=Off
Buffer_Output=Off
Debug_File=false

Final_Frame=10

This is the failed assertion:

Assertion failed: 1), function SetRGBFTValue, file image/image.cpp, l

Oddly, if I change width and height to something very small like 320×200, it works.

This is the complete stack trace:

Process: povray [11188]
Path: /opt/local/bin/povray
Identifier: povray
Version: ??? (???)
Code Type: X86-64 (Native)
Parent Process: bash [11184]

Date/Time: 2014-03-07 14:44:04.423 +0100
OS Version: Mac OS X 10.7.5 (11G63)
Report Version: 9

Interval Since Last Report: 708124 sec
Crashes Since Last Report: 23
Per-App Crashes Since Last Report: 21
Anonymous UUID: FB98BF62-1511-4E59-94F3-E89C04491CA5

Crashed Thread: 3

Exception Type: EXC_CRASH (SIGABRT)
Exception Codes: 0×0000000000000000, 0×0000000000000000

Application Specific Information:
objc[11188]: garbage collection is OFF
Assertion failed: 2), function SetRGBFTValue, file image/image.cpp, line 1827.

Thread 0:: Dispatch queue: com.apple.main-thread
0 libsystem_kernel.dylib 0x00007fff96134bca psynch_cvwait + 10
1 libsystem_c.dylib 0x00007fff90454274 _pthread_cond_wait + 840
2 povray 0x000000010eba589d bool boost::condition_variable_any::do_wait_until<boost::unique_lock<boost::mutex> >(boost::unique_lock<boost::mutex>&, timespec const&) + 77
3 povray 0x000000010eba0846 vfe::vfeSession::GetStatus(bool, int) + 198
4 povray 0x000000010ebc0147 SDL_main + 3511
5 povray 0x000000010ed4d621 -[SDLMain applicationDidFinishLaunching:] + 49
6 com.apple.Foundation 0x00007fff8bc3ad0e -[NSNotificationCenter addObserver:selector:name:object:]_block_invoke_1 + 47
7 com.apple.CoreFoundation 0x00007fff8fcda7ba _CFXNotificationPost + 2634
8 com.apple.Foundation 0x00007fff8bc26fc3 -[NSNotificationCenter postNotificationName:object:userInfo:] + 65
9 com.apple.AppKit 0x00007fff8ef08e2b -[NSApplication _postDidFinishNotification] + 212
10 com.apple.AppKit 0x00007fff8ef08b91 -[NSApplication _sendFinishLaunchingNotification] + 78
11 com.apple.AppKit 0x00007fff8ef07858 -[NSApplication(NSAppleEventHandling) _handleAEOpenEvent:] + 242
12 com.apple.AppKit 0x00007fff8ef075b9 -[NSApplication(NSAppleEventHandling) _handleCoreEvent:withReplyEvent:] + 330
13 com.apple.CoreFoundation 0x00007fff8fd24541 -[NSObject performSelector:withObject:withObject:] + 65
14 com.apple.Foundation 0x00007fff8bc5d7c7 -[NSAppleEventManager setEventHandler:andSelector:forEventClass:andEventID:]_block_invoke_1 + 101
15 com.apple.Foundation 0x00007fff8bc5c74e -[NSAppleEventManager dispatchRawAppleEvent:withRawReply:handlerRefCon:] + 283
16 com.apple.Foundation 0x00007fff8bc5c5dc _NSAppleEventManagerGenericHandler + 105
17 com.apple.AE 0x00007fff91d02c25 aeDispatchAppleEvent(AEDesc const*, AEDesc*, unsigned int, unsigned char*) + 200
18 com.apple.AE 0x00007fff91d02b03 _ZL25dispatchEventAndSendReplyPK6AEDescPS_ + 38
19 com.apple.AE 0x00007fff91d029f7 aeProcessAppleEvent + 250
20 com.apple.HIToolbox 0x00007fff8a57bb69 AEProcessAppleEvent + 102
21 com.apple.AppKit 0x00007fff8ef049c5 _DPSNextEvent + 1247
22 com.apple.AppKit 0x00007fff8ef0407d -[NSApplication nextEventMatchingMask:untilDate:inMode:dequeue:] + 135
23 com.apple.AppKit 0x00007fff8ef009b9 -[NSApplication run] + 470
24 povray 0x000000010ed4dc40 main + 1280
25 povray 0x000000010eb78744 start + 52 Thread 1:: Dispatch queue: com.apple.libdispatch-manager
0 libsystem_kernel.dylib 0x00007fff961357e6 kevent + 10
1 libdispatch.dylib 0x00007fff8c8d6786 _dispatch_mgr_invoke + 923
2 libdispatch.dylib 0x00007fff8c8d5316 _dispatch_mgr_thread + 54 Thread 2:
0 libsystem_kernel.dylib 0x00007fff96135036 sigwait + 10
1 libsystem_c.dylib 0x00007fff90406aab sigwait + 68
2 povray 0x000000010ebbe222 SignalHandler() + 66
3 libboost_thread-mt.dylib 0x000000010f3a0814 thread_proxy + 132
4 libsystem_c.dylib 0x00007fff904508bf _pthread_start + 335
5 libsystem_c.dylib 0x00007fff90453b75 thread_start + 13

Thread 3 Crashed:
0 libsystem_kernel.dylib 0x00007fff96134ce2 pthread_kill + 10
1 libsystem_c.dylib 0x00007fff904527d2 pthread_kill + 95
2 libsystem_c.dylib 0x00007fff90443a7a abort + 143
3 libsystem_c.dylib 0x00007fff904765de assert_rtn + 146
4 povray 0x000000010ed2232b pov_base::RGBFTImage<std::vector<float, std::allocator<float> > >::SetRGBFTValue(unsigned int, unsigned int, float, float, float, float, float) + 171
5 povray 0x000000010ecf4d51 pov_frontend::ImageMessageHandler::DrawPixelBlockSet(pov_frontend::SceneData const&, pov_frontend::ViewData const&, POVMS_Object&) + 2529
6 povray 0x000000010eb98d46 pov_frontend::RenderFrontend<vfe::vfeParserMessageHandler, pov_frontend::FileMessageHandler, vfe::vfeRenderMessageHandler, pov_frontend::ImageMessageHandler>::HandleImageMessage(pov_frontend::RenderFrontendBase::Id, unsigned int, POVMS_Object&) + 310
7 povray 0x000000010ece78a1 pov_frontend::RenderFrontendBase::ContinueBackup(POVMS_Object&, pov_frontend::ViewData&, pov_frontend::RenderFrontendBase::Id, int&, std::vector<int, std::allocator<int> >&, pov_base::Path const&) + 1265
8 povray 0x000000010eb92f01 pov_frontend::RenderFrontend<vfe::vfeParserMessageHandler, pov_frontend::FileMessageHandler, vfe::vfeRenderMessageHandler, pov_frontend::ImageMessageHandler>::StartRender(pov_frontend::RenderFrontendBase::Id, POVMS_Object&) + 865
9 povray 0x000000010eb8f4a9 vfe::VirtualFrontEnd::Process() + 5129
10 povray 0x000000010eb9f46e vfe::vfeSession::ProcessFrontend() + 30
11 povray 0x000000010eb9fb8f vfe::vfeSession::WorkerThread() + 1279
12 libboost_thread-mt.dylib 0x000000010f3a0814 thread_proxy + 132
13 libsystem_c.dylib 0x00007fff904508bf _pthread_start + 335
14 libsystem_c.dylib 0x00007fff90453b75 thread_start + 13

Thread 4:
0 libsystem_kernel.dylib 0x00007fff96134bca psynch_cvwait + 10
1 libsystem_c.dylib 0x00007fff90454274 _pthread_cond_wait + 840
2 povray 0x000000010eba589d bool boost::condition_variable_any::do_wait_until<boost::unique_lock<boost::mutex> >(boost::unique_lock<boost::mutex>&, timespec const&) + 77
3 povray 0x000000010eb87d26 vfe::SysQNode::Receive(int*, bool) + 214
4 povray 0x000000010ecf6e39 POVMS_ProcessMessages(void*, bool, bool) + 201
5 povray 0x000000010ebc34f3 (anonymous namespace)::MainThreadFunction(boost::function0<void> const&) + 259
6 libboost_thread-mt.dylib 0x000000010f3a0814 thread_proxy + 132
7 libsystem_c.dylib 0x00007fff904508bf _pthread_start + 335
8 libsystem_c.dylib 0x00007fff90453b75 thread_start + 13 Thread 5:
0 libsystem_kernel.dylib 0x00007fff96134bca psynch_cvwait + 10
1 libsystem_c.dylib 0x00007fff90454274 _pthread_cond_wait + 840
2 povray 0x000000010ebd60f4 void boost::condition_variable_any::wait<boost::unique_lock<boost::recursive_mutex> >(boost::unique_lock<boost::recursive_mutex>&) + 68
3 povray 0x000000010ebd5ffd pov::TaskQueue::Process() + 1421
4 povray 0x000000010ec03088 pov::Scene::ParserControlThread() + 40
5 libboost_thread-mt.dylib 0x000000010f3a0814 thread_proxy + 132
6 libsystem_c.dylib 0x00007fff904508bf _pthread_start + 335
7 libsystem_c.dylib 0x00007fff90453b75 thread_start + 13

Thread 3 crashed with X86 Thread State (64-bit):

rax: 0x0000000000000000  rbx: 0x0000000000000006  rcx: 0x0000000112d74408  rdx: 0x0000000000000000
rdi: 0x0000000000006f03  rsi: 0x0000000000000006  rbp: 0x0000000112d74430  rsp: 0x0000000112d74408
 r8: 0x00007fff7a13afb8   r9: 0x0000000000000723  r10: 0x00007fff96134d0a  r11: 0xffffff80002dad60
r12: 0x000000010ed9fd23  r13: 0x000000010f3cb000  r14: 0x0000000112d75000  r15: 0x000000010ed9faf5
rip: 0x00007fff96134ce2  rfl: 0x0000000000000246  cr2: 0x000000010f3cb000

Logical CPU: 0

Binary Images:

     0x10eb77000 -        0x10edf2fff +povray (??? - ???) <907923FC-1CA9-3125-A8D4-E6C7F0DF1951> /opt/local/bin/povray
     0x10ef73000 -        0x10efc9ff7 +libSDL-1.2.0.dylib (12.4.0 - compatibility 12.0.0) <63771EDE-135A-398E-8AE7-3CB843CE10E7> /opt/local/lib/libSDL-1.2.0.dylib
     0x10efe8000 -        0x10eff4ff7 +libXpm.4.dylib (16.0.0 - compatibility 16.0.0) <2F6BD59E-E16F-300D-AA09-71F8A97AE907> /opt/local/lib/libXpm.4.dylib
     0x10effa000 -        0x10efffff7 +libSM.6.dylib (7.1.0 - compatibility 7.0.0) <BABB8D11-A7B7-37CD-A70F-DF94180B3F9C> /opt/local/lib/libSM.6.dylib
     0x10f003000 -        0x10f014ff7 +libICE.6.dylib (10.0.0 - compatibility 10.0.0) <4B372A07-054D-3B0F-A15F-428D4D491A85> /opt/local/lib/libICE.6.dylib
     0x10f022000 -        0x10f128fff +libX11.6.dylib (10.0.0 - compatibility 10.0.0) <382A15EE-B562-36CD-BDCB-D21A367E0AC1> /opt/local/lib/libX11.6.dylib
     0x10f150000 -        0x10f1f7ff7 +libIlmImf.6.dylib (7.0.0 - compatibility 7.0.0) <B4182C14-085B-332D-B49D-6DD0581A3DB2> /opt/local/lib/libIlmImf.6.dylib
     0x10f232000 -        0x10f243fff +libz.1.dylib (1.2.8 - compatibility 1.0.0) <2FA66C30-65DE-3D33-9014-73C171F82CC1> /opt/local/lib/libz.1.dylib
     0x10f24b000 -        0x10f24ffff +libImath.6.dylib (7.0.0 - compatibility 7.0.0) <4CC9BC46-14DD-3857-843C-252DFE3E6C85> /opt/local/lib/libImath.6.dylib
     0x10f258000 -        0x10f299ff7 +libHalf.6.dylib (7.0.0 - compatibility 7.0.0) <B1DAC1AA-0B9C-3937-8B1F-A3DA53BB6DCD> /opt/local/lib/libHalf.6.dylib
     0x10f29e000 -        0x10f2a5ff7 +libIex.6.dylib (7.0.0 - compatibility 7.0.0) <AE2EBEF8-D014-3F81-B6E5-04FF7CE4BFD8> /opt/local/lib/libIex.6.dylib
     0x10f2b5000 -        0x10f2b8ff7 +libIlmThread.6.dylib (7.0.0 - compatibility 7.0.0) <4952CFB4-08AB-38BB-A12C-D1EBC1279274> /opt/local/lib/libIlmThread.6.dylib
     0x10f2bd000 -        0x10f31eff7 +libtiff.5.dylib (8.0.0 - compatibility 8.0.0) <178F87DE-0349-3A3F-B9B8-498F6CC81880> /opt/local/lib/libtiff.5.dylib
     0x10f32c000 -        0x10f361fff +libjpeg.9.dylib (10.0.0 - compatibility 10.0.0) <FD880310-8758-3D66-81AF-36916F505B56> /opt/local/lib/libjpeg.9.dylib
     0x10f36f000 -        0x10f393fff +libpng15.15.dylib (33.0.0 - compatibility 33.0.0) <8A144BC2-8438-3CD4-9C32-D79E6B999B5D> /opt/local/lib/libpng15.15.dylib
     0x10f39e000 -        0x10f3acfff +libboost_thread-mt.dylib (??? - ???) <90D975FD-5D2C-315E-8AC5-D487AA0A6356> /opt/local/lib/libboost_thread-mt.dylib
     0x10f3d0000 -        0x10f3d3ff7 +libboost_system-mt.dylib (??? - ???) <34DAECFB-23EC-388A-8B14-C23B24DB9F43> /opt/local/lib/libboost_system-mt.dylib
     0x10f3d9000 -        0x10f3e1fff +libXrandr.2.dylib (5.0.0 - compatibility 5.0.0) <B410D479-DF82-30C8-A2AB-83ACDD4B0768> /opt/local/lib/libXrandr.2.dylib
     0x10f3e9000 -        0x10f3f5ff7 +libXext.6.dylib (11.0.0 - compatibility 11.0.0) <5E2FBA3C-F7C7-3753-A93F-7E4914A1E741> /opt/local/lib/libXext.6.dylib
     0x10f401000 -        0x10f407ff7 +libXrender.1.dylib (5.0.0 - compatibility 5.0.0) <38B4C91D-606B-3754-8ED8-5EC0B7A2384A> /opt/local/lib/libXrender.1.dylib
     0x10f40c000 -        0x10f421ff7 +libxcb.1.dylib (3.0.0 - compatibility 3.0.0) <413E6D1B-AEFE-3569-9A63-B672A8B38FAD> /opt/local/lib/libxcb.1.dylib
     0x10f432000 -        0x10f433fff +libXau.6.dylib (7.0.0 - compatibility 7.0.0) <6A7B9112-128C-32C1-A1D7-38D0B93E1E35> /opt/local/lib/libXau.6.dylib
     0x10f437000 -        0x10f43afe7 +libXdmcp.6.dylib (7.0.0 - compatibility 7.0.0) <6B7DEE53-1C33-3B57-AF4E-5D47402C89ED> /opt/local/lib/libXdmcp.6.dylib
     0x10f43d000 -        0x10f446fff +libintl.8.dylib (10.2.0 - compatibility 10.0.0) <1BC778A5-CD8D-371B-B16C-251853631275> /opt/local/lib/libintl.8.dylib
     0x10f451000 -        0x10f549ff7 +libiconv.2.dylib (8.1.0 - compatibility 8.0.0) <5E426CF4-4755-31A1-8A3A-6B332E8CF0FC> /opt/local/lib/libiconv.2.dylib
     0x10f557000 -        0x10f574fff +liblzma.5.dylib (6.5.0 - compatibility 6.0.0) <D7F4E560-AF1A-390D-BEF1-D1866B7810FC> /opt/local/lib/liblzma.5.dylib
  0x7fff6e777000 -     0x7fff6e7abbaf  dyld (195.6 - ???) <C58DAD8A-4B00-3676-8637-93D6FDE73147> /usr/lib/dyld
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  0x7fff911a3000 -     0x7fff911e4fff  com.apple.QD (3.40.1 - ???) <13ACC7F4-B004-3370-B575-6D06447EE428> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/QD.framework/Versions/A/QD
  0x7fff912ad000 -     0x7fff913a2fff  libiconv.2.dylib (7.0.0 - compatibility 7.0.0) <5C40E880-0706-378F-B864-3C2BD922D926> /usr/lib/libiconv.2.dylib
  0x7fff913a3000 -     0x7fff913a8fff  com.apple.OpenDirectory (10.7 - 146) <7960A302-F9AC-3F72-838E-3A382032DCA6> /System/Library/Frameworks/OpenDirectory.framework/Versions/A/OpenDirectory
  0x7fff913a9000 -     0x7fff913a9fff  libOpenScriptingUtil.dylib (??? - ???) <A7847713-F410-39C0-884F-A7188A18E742> /usr/lib/libOpenScriptingUtil.dylib
  0x7fff9146a000 -     0x7fff914d5ff7  com.apple.framework.IOKit (2.0 - ???) <FE838BB6-D42E-3291-A1A0-6F53FC970261> /System/Library/Frameworks/IOKit.framework/Versions/A/IOKit
  0x7fff914e4000 -     0x7fff914e9fff  libGIF.dylib (??? - ???) <58A4492D-AAE7-3B8F-8B06-62867471A3EE> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ImageIO.framework/Versions/A/Resources/libGIF.dylib
  0x7fff914ea000 -     0x7fff91513fff  libJPEG.dylib (??? - ???) <64D079F9-256A-323B-A837-84628B172F21> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ImageIO.framework/Versions/A/Resources/libJPEG.dylib
  0x7fff91868000 -     0x7fff9186cfff  libmathCommon.A.dylib (2026.0.0 - compatibility 1.0.0) <FF83AFF7-42B2-306E-90AF-D539C51A4542> /usr/lib/system/libmathCommon.A.dylib
  0x7fff91924000 -     0x7fff91a08e5f  libobjc.A.dylib (228.0.0 - compatibility 1.0.0) <871E688B-CF57-3BC7-80D6-F6476DFF109B> /usr/lib/libobjc.A.dylib
  0x7fff91a09000 -     0x7fff91cfeff7  com.apple.security (7.0 - 55148.6) <4535E500-973A-3BA7-AF65-DF5CF0658F02> /System/Library/Frameworks/Security.framework/Versions/A/Security
  0x7fff91cff000 -     0x7fff91d3efff  com.apple.AE (527.7 - 527.7) <B82F7ABC-AC8B-3507-B029-969DD5CA813D> /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/AE.framework/Versions/A/AE
  0x7fff91d42000 -     0x7fff91ee2ff7  com.apple.QuartzCore (1.7 - 270.5) <19E5E0AB-DAA9-3F97-988C-D9A46AFB9C04> /System/Library/Frameworks/QuartzCore.framework/Versions/A/QuartzCore
  0x7fff91ee3000 -     0x7fff91ee4fff  libDiagnosticMessagesClient.dylib (??? - ???) <3DCF577B-F126-302B-BCE2-4DB9A95B8598> /usr/lib/libDiagnosticMessagesClient.dylib
  0x7fff91ee5000 -     0x7fff91ff1fef  libcrypto.0.9.8.dylib (49.0.0 - compatibility 0.9.8) <C24B1416-99E4-3DF5-B51B-E6FCE8F690A4> /usr/lib/libcrypto.0.9.8.dylib
  0x7fff91ff2000 -     0x7fff91ff5fff  com.apple.help (1.3.2 - 42) <BF14DE49-F7E8-336F-81FB-BBDF2DB3AC09> /System/Library/Frameworks/Carbon.framework/Versions/A/Frameworks/Help.framework/Versions/A/Help
  0x7fff91ff6000 -     0x7fff91ff6fff  com.apple.vecLib (3.7 - vecLib 3.7) <9A58105C-B36E-35B5-812C-4ED693F2618F> /System/Library/Frameworks/vecLib.framework/Versions/A/vecLib
  0x7fff91ff7000 -     0x7fff92005ff7  libkxld.dylib (??? - ???) <01161870-E3B3-3F87-BA4A-0AA7A081F409> /usr/lib/system/libkxld.dylib
  0x7fff9227f000 -     0x7fff922a7fff  com.apple.PerformanceAnalysis (1.11 - 11) <8D4C6382-DD92-37A2-BCFC-E89951320848> /System/Library/PrivateFrameworks/PerformanceAnalysis.framework/Versions/A/PerformanceAnalysis
  0x7fff92434000 -     0x7fff9243bff7  com.apple.CommerceCore (1.0 - 17) <3894FE48-EDCE-30E9-9796-E2F959D92704> /System/Library/PrivateFrameworks/CommerceKit.framework/Versions/A/Frameworks/CommerceCore.framework/Versions/A/CommerceCore
  0x7fff9243c000 -     0x7fff9243fff7  com.apple.securityhi (4.0 - 1) <7146CB8E-B754-3B0E-A74E-77E9138A81C5> /System/Library/Frameworks/Carbon.framework/Versions/A/Frameworks/SecurityHI.framework/Versions/A/SecurityHI
  0x7fff92483000 -     0x7fff924a9fff  com.apple.framework.familycontrols (3.0 - 300) <6F0C58C0-22E7-3877-8CFA-1ED0CB3CE38B> /System/Library/PrivateFrameworks/FamilyControls.framework/Versions/A/FamilyControls
  0x7fff927ea000 -     0x7fff927ebfff  liblangid.dylib (??? - ???) <CACBE3C3-2F7B-3EED-B50E-EDB73F473B77> /usr/lib/liblangid.dylib
  0x7fff9287f000 -     0x7fff928d7ff7  libTIFF.dylib (??? - ???) <59353B7F-EA9A-32D5-A501-283443B30C60> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ImageIO.framework/Versions/A/Resources/libTIFF.dylib
  0x7fff928d8000 -     0x7fff92933ff7  com.apple.opencl (2.0.19 - 2.0.19) <B05BF605-73B8-328F-A228-6FA59E1FC73A> /System/Library/Frameworks/OpenCL.framework/Versions/A/OpenCL
  0x7fff92934000 -     0x7fff9296efe7  com.apple.DebugSymbols (2.1 - 87) <ED2B177C-4146-3715-91DF-D99A8ED5449A> /System/Library/PrivateFrameworks/DebugSymbols.framework/Versions/A/DebugSymbols
  0x7fff9296f000 -     0x7fff929e5ff7  libc++.1.dylib (28.4.0 - compatibility 1.0.0) <A24FC3DA-4FFA-3DD2-9DCC-2B8D1B3BF97C> /usr/lib/libc++.1.dylib
  0x7fff92a0f000 -     0x7fff92a1cfff  libCSync.A.dylib (600.0.0 - compatibility 64.0.0) <72C53E7B-C222-3BE5-9984-FDC328CC4846> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/CoreGraphics.framework/Versions/A/Resources/libCSync.A.dylib
  0x7fff92a1d000 -     0x7fff92a71ff7  com.apple.ScalableUserInterface (1.0 - 1) <33563775-C662-313D-B7FA-3D575A9F3D41> /System/Library/Frameworks/QuartzCore.framework/Versions/A/Frameworks/ScalableUserInterface.framework/Versions/A/ScalableUserInterface
  0x7fff92d9a000 -     0x7fff92d9bff7  libremovefile.dylib (21.1.0 - compatibility 1.0.0) <739E6C83-AA52-3C6C-A680-B37FE2888A04> /usr/lib/system/libremovefile.dylib
  0x7fff93205000 -     0x7fff9327bfff  com.apple.CoreSymbolication (2.2 - 73.2) <126415E3-3A35-315B-B4B7-507CDBED0D58> /System/Library/PrivateFrameworks/CoreSymbolication.framework/Versions/A/CoreSymbolication
  0x7fff9338e000 -     0x7fff93602fff  com.apple.CoreImage (7.99.1 - 1.0.1) <4BB09B79-275B-364C-9466-0FF36ABB1218> /System/Library/Frameworks/QuartzCore.framework/Versions/A/Frameworks/CoreImage.framework/Versions/A/CoreImage
  0x7fff93603000 -     0x7fff9360cff7  libsystem_notify.dylib (80.1.0 - compatibility 1.0.0) <A4D651E3-D1C6-3934-AD49-7A104FD14596> /usr/lib/system/libsystem_notify.dylib
  0x7fff9360d000 -     0x7fff93624fff  com.apple.MultitouchSupport.framework (231.4 - 231.4) <559C1AFB-E0B4-3D23-9189-18DE09C06FFE> /System/Library/PrivateFrameworks/MultitouchSupport.framework/Versions/A/MultitouchSupport
  0x7fff9369b000 -     0x7fff9369bfff  com.apple.CoreServices (53 - 53) <043C8026-8EDD-3241-B090-F589E24062EF> /System/Library/Frameworks/CoreServices.framework/Versions/A/CoreServices
  0x7fff936c8000 -     0x7fff936cbfff  libRadiance.dylib (??? - ???) <CD89D70D-F177-3BAE-8A26-644EA7D5E28E> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ImageIO.framework/Versions/A/Resources/libRadiance.dylib
  0x7fff936d9000 -     0x7fff93719ff7  libcups.2.dylib (2.9.0 - compatibility 2.0.0) <7D2E5016-A960-3ADE-B042-F74063E79550> /usr/lib/libcups.2.dylib
  0x7fff93761000 -     0x7fff937adff7  com.apple.SystemConfiguration (1.11.3 - 1.11) <131780ED-E8DD-3153-81F2-5FEC4F6554C2> /System/Library/Frameworks/SystemConfiguration.framework/Versions/A/SystemConfiguration
  0x7fff937ae000 -     0x7fff937b4ff7  libunwind.dylib (30.0.0 - compatibility 1.0.0) <1E9C6C8C-CBE8-3F4B-A5B5-E03E3AB53231> /usr/lib/system/libunwind.dylib
  0x7fff937b5000 -     0x7fff93811ff7  com.apple.HIServices (1.21 - ???) <B012EE97-D1CD-3F4B-812D-9AC7E6852FE6> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/HIServices.framework/Versions/A/HIServices
  0x7fff93812000 -     0x7fff93818fff  libmacho.dylib (800.0.0 - compatibility 1.0.0) <165514D7-1BFA-38EF-A151-676DCD21FB64> /usr/lib/system/libmacho.dylib
  0x7fff93819000 -     0x7fff9384cff7  com.apple.GSS (2.2 - 2.0) <971395D0-B9D0-3FDE-B23F-6F9D0A2FB95F> /System/Library/Frameworks/GSS.framework/Versions/A/GSS
  0x7fff9384d000 -     0x7fff93857ff7  liblaunch.dylib (392.39.0 - compatibility 1.0.0) <8C235D13-2928-30E5-9E12-2CC3D6324AE2> /usr/lib/system/liblaunch.dylib
  0x7fff93858000 -     0x7fff93865ff7  libbz2.1.0.dylib (1.0.5 - compatibility 1.0.0) <3373D310-3B10-3DD1-B754-B7B138CD448D> /usr/lib/libbz2.1.0.dylib
  0x7fff93885000 -     0x7fff939bbfff  com.apple.vImage (5.1 - 5.1) <A08B7582-67BC-3EED-813A-4833645964A7> /System/Library/Frameworks/Accelerate.framework/Versions/A/Frameworks/vImage.framework/Versions/A/vImage
  0x7fff939bc000 -     0x7fff939e7ff7  libxslt.1.dylib (3.24.0 - compatibility 3.0.0) <E71220D3-8015-38EC-B97D-7FDB383C2BDC> /usr/lib/libxslt.1.dylib
  0x7fff93a2d000 -     0x7fff93a3cff7  libxar-nossl.dylib (??? - ???) <A6ABBFB9-E4ED-38AD-BBBB-F9958B9CEFB5> /usr/lib/libxar-nossl.dylib
  0x7fff93d63000 -     0x7fff93e65fff  libxml2.2.dylib (10.3.0 - compatibility 10.0.0) <AFBB22B7-07AE-3F2E-B88C-70BEEBFB8A86> /usr/lib/libxml2.2.dylib
  0x7fff9402e000 -     0x7fff949cca27  com.apple.CoreGraphics (1.600.0 - ???) <576777EA-921B-3D94-98C3-40A9CF8EBD18> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/CoreGraphics.framework/Versions/A/CoreGraphics
  0x7fff949cd000 -     0x7fff94e94fff  FaceCoreLight (1.4.7 - compatibility 1.0.0) <BDD0E1DE-CF33-3AF8-B33B-4D1574CCC19D> /System/Library/PrivateFrameworks/FaceCoreLight.framework/Versions/A/FaceCoreLight
  0x7fff954e6000 -     0x7fff954edfff  com.apple.NetFS (4.0 - 4.0) <433EEE54-E383-3505-9154-45B909FD3AF0> /System/Library/Frameworks/NetFS.framework/Versions/A/NetFS
  0x7fff955cf000 -     0x7fff955d3fff  libCGXType.A.dylib (600.0.0 - compatibility 64.0.0) <35D606B1-7AD9-38E3-A2A9-E92B904BDDE8> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/CoreGraphics.framework/Versions/A/Resources/libCGXType.A.dylib
  0x7fff95648000 -     0x7fff956cbfef  com.apple.Metadata (10.7.0 - 627.37) <B9BEB598-B6F2-3BFF-A8F3-C3C87CD076AB> /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/Metadata.framework/Versions/A/Metadata
  0x7fff956cc000 -     0x7fff956d1fff  libcache.dylib (47.0.0 - compatibility 1.0.0) <1571C3AB-BCB2-38CD-B3B2-C5FC3F927C6A> /usr/lib/system/libcache.dylib
  0x7fff956d2000 -     0x7fff956fbfff  com.apple.CoreVideo (1.7 - 70.3) <9A9D4058-9935-3B0A-B1A6-27EB78D02249> /System/Library/Frameworks/CoreVideo.framework/Versions/A/CoreVideo
  0x7fff95743000 -     0x7fff95745fff  com.apple.TrustEvaluationAgent (2.0 - 1) <1F31CAFF-C1C6-33D3-94E9-11B721761DDF> /System/Library/PrivateFrameworks/TrustEvaluationAgent.framework/Versions/A/TrustEvaluationAgent
  0x7fff95787000 -     0x7fff957c7fe7  libGLImage.dylib (??? - ???) <0B7DAB2B-F1C6-39C7-B864-61EF683B6656> /System/Library/Frameworks/OpenGL.framework/Versions/A/Libraries/libGLImage.dylib
  0x7fff95802000 -     0x7fff95b1efff  com.apple.CoreServices.CarbonCore (960.25 - 960.25) <4FC1AB30-022C-3C67-AC46-FDCBFCB7EEDE> /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/CarbonCore.framework/Versions/A/CarbonCore
  0x7fff9611d000 -     0x7fff9611dfff  com.apple.Cocoa (6.6 - ???) <7EC4D759-B2A6-3A99-AC75-809FED1500C6> /System/Library/Frameworks/Cocoa.framework/Versions/A/Cocoa
  0x7fff9611e000 -     0x7fff9613efff  libsystem_kernel.dylib (1699.32.7 - compatibility 1.0.0) <66C9F9BD-C7B3-30D4-B1A0-03C8A6392351> /usr/lib/system/libsystem_kernel.dylib
  0x7fff9632c000 -     0x7fff963cefff  com.apple.securityfoundation (5.0 - 55116) <70CDC3ED-39AA-3784-8715-F0F5E2CB9754> /System/Library/Frameworks/SecurityFoundation.framework/Versions/A/SecurityFoundation
  0x7fff963cf000 -     0x7fff963daff7  libc++abi.dylib (14.0.0 - compatibility 1.0.0) <8FF3D766-D678-36F6-84AC-423C878E6D14> /usr/lib/libc++abi.dylib

External Modification Summary:

Calls made by other processes targeting this process:
  task_for_pid: 2
  thread_create: 0
  thread_set_state: 0
Calls made by this process:
  task_for_pid: 0
  thread_create: 0
  thread_set_state: 0
Calls made by all processes on this machine:
  task_for_pid: 29684
  thread_create: 0
  thread_set_state: 0

VM Region Summary:
ReadOnly portion of Libraries: Total=152.0M resident=86.4M(57%) swapped_out_or_unallocated=65.6M(43%)
Writable regions: Total=129.5M written=26.5M(20%) resident=28.4M(22%) swapped_out=4K(0%) unallocated=101.0M(78%)

REGION TYPE VIRTUAL

Beta 32 is failing to render a mesh2 smoothly on 64-bit XP - output shows flat triangles rather than smoothed triangles.
Issue is not present in 32-bit build.

Reported in http://news.povray.org/49e51489%241%40news.povray.org. Demo image rendered using standard chessmesh scene.

Subsurface scattering must be made radiosity-aware.

The commands:

povray +i /home/ronis/Nm=500/povray.00001.pov

or

povray +i/home/ronis/Nm=500/povray.00001.pov

fail with: povray: this pre-release version of POV-Ray for Unix expires in 2 day(s) and 1 hour(s)
Failed to parse command-line option

Going to the directory and simply running: povray +i povray.00001.pov
works.

I came across this by accident trying to get emac’s povray mode to work; apparently it passes the full path name to povray.

I don’t think there is a problem in 3.6.1

Bounding box computation for CSG intersection appears to be broken when one member is an arbitrarily transformed plane.

POV-Ray 3.6.2 has the same problem (can’t test for 3.6.1).

// +W640 +H480 +MB1

#include "transforms.inc"

camera {
  location  <-0.2, 0.5, -4.0>
  direction 1.5*z
  right     x*image_width/image_height
  look_at   <0.0, 0.0,  0.0>
}

sky_sphere {
  pigment {
    gradient y
    color_map {
      [0.0 rgb <0.6,0.7,1.0>]
      [0.7 rgb <0.0,0.1,0.8>]
    }
  }
}

light_source {
  <0, 0, 0>            // light's position (translated below)
  color rgb <1, 1, 1>  // light's color
  translate <-30, 30, -30>
}

plane {
  y, -1
  pigment { color rgb <0.7,0.5,0.3> }
}

intersection {
  sphere {
    0.0, 1 }
  plane { -x, 0 transform { Shear_Trans(x,y+x*0.3,z) } }
  texture {
    pigment {
      radial
      frequency 8
      color_map {
        [0.00 color rgb <1.0,0.4,0.2> ]
        [0.33 color rgb <0.2,0.4,1.0> ]
        [0.66 color rgb <0.4,1.0,0.2> ]
        [1.00 color rgb <1.0,0.4,0.2> ]
      }
    }
    finish{
      specular 0.6
    }
  }
  rotate -y*5
}

The text object isn’t working with /usr/share/fonts/truetype/freefont/FreeSans.ttf. Used to work - taken from an old .pov file of mine.

Rebuilt from
http://www.povray.org/redirect/www.povray.org/ftp/pub/povray/Official/Unix/povray-3.6.tar.bz2

$ povray +ifonttest.pov +ofonttest.png

Persistence of Vision™ Ray Tracer Version 3.6.1 (g++ 4.4.3 @
x86_64-unknown-linux-gnu)
This is an unofficial version compiled by:
darxus [at] chaosreignscom

.....

File: fonttest.pov Line: 8
Parse Warning: Character 101 (0×65) not found in /usr/share/fonts/truetype/freefont/FreeSans.ttf
File: fonttest.pov Line: 8
Parse Warning: Character 115 (0×73) not found in /usr/share/fonts/truetype/freefont/FreeSans.ttf

Verification that the problem is not in the .ttf file, this works (imagemagick):

convert -background lightblue -fill blue -pointsize 48 -font
/usr/share/fonts/truetype/freefont/FreeSans.ttf label:test fonttest.png

Problem verified when compiled from source on Ubuntu Lucid. Also exists in Ubuntu binaries from Lucid and Hardy.

In the folder “ready made scenes”, there is the file “B0 - Basic scene 11 - pure white background.txt”.
The text string to be rendered lacks the “e” in “pure”. Unfortunately, this makes the typo visible in the “Insert menu” preview image.

If the “e” is added, the text needs to be scaled a bit smaller (0.43 instead of 0.44) to fit inside the view.

The following code contains a possible “fix” (whatever).
It would be great if someone could fix this easy issue:

text { ttf "arial.ttf", "pure white background", 0.02, 0.0 // thickness, offset
       texture{ pigment{ color rgb<1,0.6,0>*0.5 } 
                finish { phong 0.1 }
              } // end of texture

       scale<1,1.25,1>*0.43
       translate<-2.10,-0.30,0.00 >
      } // end of text object ---------------------------------------------

There are a number of problems with the Windows version of POV-Ray under Windows Vista. To resolve these, the setup program needs to be re-written and the location of internal files changed.

The version 3.6 documentation needs to be updated to suit the changes for version 3.7.

The Rect data type needs to be renamed to avoid a clash with a Mac OSX declaration. It was originally called Rectangle, but this clashed with a Windows declaration. Something more POV-specific should be used, e.g. PovRect.

Files of exactly 4k length can cause a full crash exception when opened.

Overlapping partially transparent objects can result in speckled shadows.
Rays shouldn’t leak through the coincident areas, they should return one
of the two textures. This was correct in 3.6.

#declare testmat = material { texture {
      pigment {color <1,0,0> transmit 0.5}
}};

camera { location  <1.0, 2.0, -4.0>
   direction 1.5*z
   right     x*image_width/image_height
   look_at   <1.0, -0.2,  0.0>
   angle 30 }

light_source {<-10, 10, -5> color rgb <1, 1, 1>}

plane {y,-1 pigment{rgb <1,1,1>}}

union {
   sphere {<0.0,0,0>,0.5 material{testmat}}
   sphere {<0.1,0,0>,0.5 material{testmat}}
   sphere {<0.2,0,0>,0.5 material{testmat}}
   sphere {<0.3,0,0>,0.5 material{testmat}}
   sphere {<0.4,0,0>,0.5 material{testmat}}
   sphere {<0.5,0,0>,0.5 material{testmat}}
}

Using trace or inside with a julia fractal causes a crash.

#declare Test = julia_fractal {
  <-0.083,0.0,-0.83,-0.025>
  quaternion
  cube 
  max_iteration 8
  precision 20
};
#declare Norm = <0,0,0>;
#declare Hit = trace(Test,<0,0,-10>,z,Norm);
#declare Center = inside(Test,<0,0,0>); 

There can be square (32×32) blotches in partially transparent objects.

global_settings {
   max_trace_level 10
}

camera { 
   location <-30,10,5> 
   look_at <0,0,0> 
   angle 25 
}


light_source { 
   <-100,30,70> 
   rgb 1 
}

difference { // make a dome
  sphere { <0,0,0> 5 }  // ball
  sphere { <0,0,0> 4.9 } // hollow interior
  box { <-6,-6,-6> <6,1,6>  pigment { rgb <0,0,0> }}  // chop off bottom half
  pigment { rgbt <1,1,1,0.675> }
}

box { 
   <-6,-6,-6>, <6,0.99,6> 
   pigment { rgb <1,1,1> } 
   rotate <0,45,0>
} // sit it on a box

Array.inc and subsurface.pov are in read only mode, they probably should have normal permissions.

In unix distribution these scripts

• allscene.sh
• allanim.sh
• porfolio.sh

have the variable VERSION set to 3.6

3.6x only bug with easy/known fix. Error message: “Identifier expected, incomplete function call or spline call found instead.” caused by token counter variable using the wrong special value. The symptom occurs when using a lot of splines. See this thread for details.

(I am using a self-compiled special build because I use a lot of splines in 3.6 but would rather use an official 3.6)

Beta 32, compiled from source on Linux/Ubuntu, amd64.

The random “window display lock” is back.
(as the previous “solution” was to get no window display usable, that’s not so bad).

What is it: sometime, when the rendering window is activated, povray just draw the frame
of the window, paint it black, does not display anything else but seems to perform the
rendering in separate threads. Whenever the mouse move over the frame of the window, it
unlock the updating process and big parts of the rendered image pop up.

What it is not fine: if you do not move the mouse over the window, povray will just stall.
This is more a problem for animation rendering, as getting the display might be a wanted
bonus to monitor the rendering images, and you just fall into that lock: your expected
night rendering could very well be suspended on the first frame.
Moreover, the “move the mouse over” works only for local display. In previous beta (not
yet checked with 32), with a remote display, there was no way to unlock povray.

The parser is missing extra period characters when it parses a float as a vector component.

#local sample = <0.0.0.1,0,0>;

Doesn’t generate an error, but should.

Recruit version 3.7 documentation editors from the users community.

The following scene, showing an almost cylindrical cone floating above a plane, renders fine in POV 3.6.2, but is obviously broken in 3.7.0.beta.34:

camera {
  right     x
  up        y*image_height/image_width
  location  <80,50,40>
  look_at   <0,0,0>
}

light_source { <500,500,500> color rgb 1 }

cone {
  <0,0,30>, 11.303000, <0,0,-30>, 11.302999
  texture { pigment { color rgb 1 } }
}

plane { y, -20 texture { pigment { color rgb 0.3 } } }

The error occurs even with the -MB option, indicating that the problem has nothing to do with bounding, but is in the cone intersection testing code.

Reported by cshake + pov @ gmail . com in p.beta-test, 14th december 2009

I wrote a simple script to convert fractint color maps to povray color_maps so I could use ApoMap to make nice fractal colors for pov, but I ran into
“Parse Error: Blend_Map too long.” The map has entries from 0/255 up to 255/255 (inclusive). I looked up the documentation which says that color_maps can have from 2 to 256 entries, and this is exactly 256 entries.
I’m posting this in beta-test because I assume that the documentation is correct for v3.6, and that a previous version can handle 256 entries.

The following SDL code

sphere {0, 1 pigment {image_map {png "missing.png"}}

yields “render failed” in 3.7b25 and the position of the error
is not highlighted in source code, giving no clue what went wrong.
In 3.6 this yields “Parse Error: Cannot open PNG file”.

The function of the “Debug_File=” .ini option has changed from 3.6 to 3.7.37a.
In 3.6, when rendering multiple frames, a debug file would be created that then appended the debug lines for each frame into the file. It was therefore able to have debug data that identified what parameters were used in which frame in case a frame did not have the desired effect.

In 3.7.37a, the debug file does not perform this function. Instead it creates a new debug file (overwriting the prior) with each new frame. Therefore the debug data is only useful for the final frame (or wherever the render was halted). This is useful for a single frame render or for identifying a fault within a series of frames (because only the last one will remain) but it is not useful for many frames that render successfully.

This problem does not cause any rendering errors or other defects. The debug file specified will only contain the debug data for the last frame rendered.

Per discussion in the forum it was unknown if this was a bug or “feature”. At this time it is causing me a problem so I am submitting the bug. No related bugs were found searching for “output” or “debug” in any status.

Operating System in use is Windows XP. I cannot test 3.7.37a in additional OSes, but it does not seem like it would be OS-specific.

There should be a table of contents on each page of the documentation, or at least on the very long pages. Scrolling through the entire page to figure out what topics are covered sucks.

20 library paths is a bit small given the sheer number of include files I’ve collected over the years. An increase in the number, and/or the ability to include wildcards in the search path, would be great.

When right-clicking on a tab in the editor window a list of options should appear, such as:

* Close
* Close all but this
* Save
* Save as
* Print

See Notepad++, EditPad Lite, and Firefox for examples.

The documentation assumes that INI files (as well as the command line!) are parsed and processed instantly. This no longer holds true for POV-Ray 3.7, where parsing INI files (and the command line) and processing it are separate operations that occur at different times. As such, one consequence is that INI file options only take effect after reading the whole INI file, and possibly later.

As such, documentation statements such as <http://www.povray.org/documentation/view/3.6.1/222/>
“Note: that these options take effect immediately when specified. Obviously any error or warning messages that might occur before the option is read will not be affected.”

Are no longer correct. It needs to be explained that options only take effect after the INI file has been read. An error in the INi file causes other options _not_ to take effect because reading of the INi file is aborted prematurely.

no warning is issued when an object/primitive has no pigment type given

Bounding box computation for CSG intersection appears to be broken when one member is an arbitrarily transformed plane.

// +W640 +H480 +MB1

#include "transforms.inc"

camera {
  location  <-0.2, 0.5, -4.0>
  direction 1.5*z
  right     x*image_width/image_height
  look_at   <0.0, 0.0,  0.0>
}

sky_sphere {
  pigment {
    gradient y
    color_map {
      [0.0 rgb <0.6,0.7,1.0>]
      [0.7 rgb <0.0,0.1,0.8>]
    }
  }
}

light_source {
  <0, 0, 0>            // light's position (translated below)
  color rgb <1, 1, 1>  // light's color
  translate <-30, 30, -30>
}

plane {
  y, -1
  pigment { color rgb <0.7,0.5,0.3> }
}

intersection {
  sphere {
    0.0, 1 }
  plane { -x, 0 transform { Shear_Trans(x,y+x*0.3,z) } }
  texture {
    pigment {
      radial
      frequency 8
      color_map {
        [0.00 color rgb <1.0,0.4,0.2> ]
        [0.33 color rgb <0.2,0.4,1.0> ]
        [0.66 color rgb <0.4,1.0,0.2> ]
        [1.00 color rgb <1.0,0.4,0.2> ]
      }
    }
    finish{
      specular 0.6
    }
  }
  rotate -y*5
}

FileBackedPixelContainer uses a FILE* to manage the backing store and under Linux/Unix defines fseek64 to be a kind of incantation of lseek64.

Since fseek64 and fseek64 have return values that are logical opposites this causes an exception to be thrown.

Moreover since the buffer size on a FILE is quite a bit smaller than a line of pixels (in terms of bytes), mostly what’s being done in this function is a lot of sloshing of bytes that don’t do much... which is to say that the intended caching mechanism is getting a very low hit rate now that povray is working in 32×32 pixel per-thread chunks.

The cache miss problem and the volume of bytes read/written grows exponentially as the size of the image grows.

Attached is a replacement function that seems to be working well and should produce a performance increase even under Windows. I originally went with simply fixing the fseek/lseek problem but saw a 10% decrease in render time on 2048×1024-sized images when I made the cache target smaller.

While testing if the png support was working, I tried 3.7.0rc3 on NetBSD-5.99.45/amd64, and had the following problems:

1. lseek64 (used in source/base/image/image.cpp) is not portable, and not necessary on NetBSD (off_t there is large-file-safe)
2. unix/Makefile.am doesn’t add -lboost_thread to povray_LDADD, which breaks linking the executable.
3. vfe/unix/platformbase.cpp uses CLOCK_THREAD_CPUTIME_ID, which is not provided on NetBSD (I hacked around it by defining the symbol to “0”, but that’s of course not a correct fix).
4. vfe/unix/platformbase.cpp uses CLOCK_PROCESS_CPUTIME_ID, which is not provided on NetBSD – it’s called CLOCK_REALTIME like on FreeBSD, so we could just add defined(NetBSD) to the FreeBSD case, except for point 3.
5. vfe/unix/vfeplatform.cpp uses WEXITSTATUS. For this, sys/wait.h should be included. The obvious fix is
#ifdef HAVE_SYS_WAIT_H
# include <sys/wait.h>
#endif
but this also needs a check in the configure script.

Fixing all this, I get it to build, but core dump when run against the demo file from http://www.csb.yale.edu/userguides/graphics/povray/demo.pov.html.
Backtrace is
Program terminated with signal 11, Segmentation fault.
#0 0x00000000004ac479 in boost::gregorian::date::date ()
(gdb) bt
#0 0x00000000004ac479 in boost::gregorian::date::date ()
#1 0x00000000004d29f7 in boost::gregorian::date::date ()
#2 0x0000000000479a85 in std::vector<std::string, std::allocator<std::string> >::operator= ()
#3 0×0000000000461570 in std::vector<std::string, std::allocator<std::string> >::operator= ()
#4 0x00000000004656c7 in std::vector<std::string, std::allocator<std::string> >::operator= ()
#5 0x00000000005efc9f in Imf::TypedAttribute<std::string>::typeName ()
#6 0x00000000005fd890 in Imf::TypedAttribute<std::string>::typeName ()
#7 0x00000000005fe5d8 in Imf::TypedAttribute<std::string>::typeName ()
#8 0x000000000045d6dc in std::vector<std::string, std::allocator<std::string> >::operator= ()
#9 0x00007f7ffd80d9cf in thread_proxy ()

from /usr/pkg/lib/libboost_thread.so.1.45.0

#10 0x00007f7ffd00b24e in pthreadcreate_tramp (cookie=<value optimized out>)
at /archive/cvs/src/lib/libpthread/pthread.c:473
#11 0x00007f7ff8871780 in _lwp_park50 () from /usr/lib/libc.so.12

Please advise on how to proceed.

According to the docs, the panoramic camera...

[...] uses a type of cylindrical projection to be able to use viewing angles larger than 180 degrees with a tolerable lateral-stretching distortion. The angle keyword is used to determine the viewing angle.

However, current implementation differs (and probably always has): The angle keyword has no effect, and the effective viewing angle is fixed to 180 degrees. Also note that this behaviour is identical to the spherical camera with angle 180,180, making the panoramic camera obsolete.

I propose to deprecate the “panoramic” keyword; should the keyword be encountered in a camera block, the code for the spherical camera should be used instead, except that the angle setting should be forced to 180,180; this should be accompanied by a parse warning.

Keyword Completion does not work for several names.
I miss it for animation related names like frame_number or final_frame.

Typing “fram{TAB}” just inserts a TAB character after “fram” instead of completing it to frame_number.

Independently of that bug, typing {TAB} repeatedly does not cycle through possible names:
“fr{TAB}” gives “frequency” and “fresnel” and that’s all.

In version 3.6 it worked well.

My system is Windows 7 64bit and PovRay is 3.7.0.RC3.msvc9.win64

parser fails to report when an illegal map_type is used. For example map_type 10 and map_type 100 doesn’t produce an error