Trying to build povray-3.6 against png-1.5 fails spectacularly.

.../include/png.h:666: error: forward declaration of ‘struct png_info_def’ png_pov.cpp:1405: error: invalid use of undefined type ‘struct png_info_def’

appears a lot in the output.

The problem is that png-1.5 hides structure members from public view.

Note, this is not the same problem as  FS#144 .

REcently I installed POV-Ray tracing software in my mac OS X version 10.6.8. When I run the software its displaying a fatal error occured and the error number is -43. I’m new to POV-Ray...pls help me guys...

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)

If you abort a render with ^C, Povray exits with a ‘success’ error code.

To test:

povray scene.ini
(^C to abort it)
echo $?

Right now 0 is returned (’success’). A non-zero value should be returned (’failure’).

This is particularly important for scripting, where command lines like:

povray scene.ini && halt

...can be used. I only want the halt to be executed if the scene renders successfully. If I change my mind and ^C it, I don’t want the machine to shut down!

source/png_pov.cpp included in povray-3.6.1 contains calls to an internal function of libpng (png_write_finish_row) which was removed from the public interface quite a while ago, so linking fails.

Also, in the 1.4 releases of libpng, the info_struct “trans” member was renamed to trans_alpha. This causes a compilation error in the same file.

A suggestion for the solution:
a) remove the png_write_finish_row prototype and function call
b) add something like:
#if PNG_LIBPNG_VER < 10400
#define trans_alpha trans
#endif
and change
cmap[index].Transmit = 255 - r_info_ptr→trans[index];
to
cmap[index].Transmit = 255 - r_info_ptr→trans_alpha[index];
(two occurrences).

The #switch directive isn’t parsing correctly. In the following construct NO warning or error is generated:

#switch (RF)

case (0)
	rotate z*355
#break
case (144)
	rotate z*7.5
#break
case (216)
	rotate z*5
#break

#end

RF is a variable passed to the macro in which this construct resides. The first ‘case’ action IS executed, but none of the others are on successive calls to the macro. If I properly add ‘#’ to the second case the 1st and 2nd condition are executed but not the last. If ‘#’ is REMOVED from any of the break directives an error is generated and parsing halts.

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.

Hi,

I have a problem with photons. The following stripped down code simulates a
slide projector:

#include "colors.inc"

global_settings {
  #if (1)   // switch photons on/off
    photons { count 1000000 }
  #end
}

camera { location <0, 0, 200> sky<0,1,0> look_at <0,200,-200> angle 90 }

// projection screen
plane { z, -200 texture { pigment { White } finish{ diffuse 1 ambient 0.1} } }

// slide
polygon {
  5, <0,0,0>, <1,0,0>,<1,1,0>,<0,1,0>,<0,0,0>
  pigment { image_map {jpeg "s7_0.9_320.jpg" interpolate 2 filter all 1.0 } }
  translate <-0.5, 0.2, -0.3>
  photons { target refraction on reflection off collect off }
}

// projector lamp
light_source { <0, 0, 0>  color <1,1,1> }

——————————————-

A point light source projects through a image_map onto a screen.

Without photons the projected image is ok:
http://img838.imageshack.us/i/test4woph.png/

With photons the left and right bottom corners of the image will be clipped:
http://img101.imageshack.us/i/test4wph.png/

The size of clipped corners depends on the y-offset in the translate command.

The povray Version is:
Persistence of Vision™ Ray Tracer Version 3.6.1 (Debian (x86_64-linux-gnu-g+
+ 4.3.3 @ x86_64-pc-linux-gnu))
(the 3.7 beta has the same problem)

I posted this question in the general news group and got an answer by Christian Froeschlin,
who could reproduce the problem and suggested as workaround to divide the slide into small stripes

http://news.povray.org/povray.general/thread/%3Cweb.4c972bdffcc128eac947b6de0%40news.povray.org%3E/

This works, but doesn’t explain the problem.

Does anyone have an idea, whats wrong?

Many thanks,
Corvin

I used POV-Ray to make an animation of my Morgan driving around a slalom course. (If you are curious, you can see the output on youtube under my user name, nojonushi.) To make the long swooping fenders I used Mike William’s SweepSpline macro.

The code rendered the 1189 frames in one go with no problems. But the wheels in that animation do not rotate, so I then added code to rotate the wheels. In the calculations I added I used a #while loop to step through the spline containing the route coordinates and total up the distance traveled. Running POV-Ray on this file produced a random number of images and then issued an error, e.g.

 0:00:00 Processing Frame 456 of 1189
 0:00:00 Parsing

File: mogslalom.pov Line: 1918
Parse Warning: Patch objects not allowed in intersection.
File: mogslalom.pov Line: 2988
File Context (5 lines):

                object {
                SweepSpline(TFSpline,

Parse Error: Identifier expected, incomplete function call or spline call found instead.

Most of the parameters for the macro are missing. But this is after successfully generating, in this case, 455 images.

I have attached a text file with set-up and sample code that has given the error on two different machines.

The configure script for unix uses a dumb string compare to test whether libpng version is 1.2.5 or higher, leading it to reject (for instance) libpng 1.2.27 and unnecessarily compile and statically link the older libpng version it comes with.

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.

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.

In gif.cpp (source/base/image), circa line 150:

			case ',': /* Start of image object. Get description. */
				for (int i = 0; i < 9; i++)
				{
					if ((data = file->Read_Byte()) == EOF)
						throw POV_EXCEPTION(kFileDataErr, "Unexpected EOF reading GIF file");
					buffer[i] = (unsigned char) data;
				}

				/* Check "interlaced" bit. */
				if ((buffer[9] & 0x40) != 0)
					throw POV_EXCEPTION(kFileDataErr, "Interlacing in GIF image unsupported");

The loop reads the 9 bytes of the Image Block, but is testing the tenth byte for interlacing.

Reference for image format: http://www.onicos.com/staff/iz/formats/gif.html#ib

When the gif is generated by Gimp, the Image block is preceded by the comment block which default to “Created with GIMP”... the comment is read in the buffer, and the “i” will be in buffer[9], any letter after @ will indeed block povray.

This bug was not present in 3.1g nor in 3.6.1 (due to different source to handle gif).

If not created by Gimp, or with shorter comment, the content of buffer[9] is more random, yet it might trigger the bug depending on the previous blocks and their handling.

Reported in p.beta-test by James Dietrich (2013-12-12)

when the display window must be scaled (because one or both dimensions are larger than the actual screen), the ratio of scale might be too large in some occasion, performing a memory corruption in two places and usually crashing povray.

How to reproduce, with a 1920×1080 display (or 1920×1200):

povray +W2596 +H1003 +Ispiral.pov +Ospiral.png +D

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
  0x7fff893c0000 -     0x7fff89428ff7  com.apple.audio.CoreAudio (4.0.3 - 4.0.3) <9987DC46-2A96-3BA0-B88B-04E573C0AD9B> /System/Library/Frameworks/CoreAudio.framework/Versions/A/CoreAudio
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  0x7fff897fb000 -     0x7fff898aeff7  com.apple.CoreText (220.22.0 - ???) <A7A1096F-A211-3775-BA33-08FE98D27F08> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/CoreText.framework/Versions/A/CoreText
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  0x7fff8bc24000 -     0x7fff8bf3dfff  com.apple.Foundation (6.7.2 - 833.25) <22AAC369-B63C-3C55-8AC6-C3ECBA44DA7B> /System/Library/Frameworks/Foundation.framework/Versions/C/Foundation
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  0x7fff8bfe5000 -     0x7fff8c142fff  com.apple.audio.toolbox.AudioToolbox (1.7.3 - 1.7.3) <5F1E4695-BC74-3ADD-8345-627BCD68201A> /System/Library/Frameworks/AudioToolbox.framework/Versions/A/AudioToolbox
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  0x7fff8d3db000 -     0x7fff8d3fffff  com.apple.RemoteViewServices (1.5 - 44.2) <A0417D7F-22E9-3FD8-AC55-67654D8E93EB> /System/Library/PrivateFrameworks/RemoteViewServices.framework/Versions/A/RemoteViewServices
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  0x7fff90fc4000 -     0x7fff90fd9fff  com.apple.speech.synthesis.framework (4.0.74 - 4.0.74) <C061ECBB-7061-3A43-8A18-90633F943295> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/SpeechSynthesis.framework/Versions/A/SpeechSynthesis
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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
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  0x7fff914ea000 -     0x7fff91513fff  libJPEG.dylib (??? - ???) <64D079F9-256A-323B-A837-84628B172F21> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ImageIO.framework/Versions/A/Resources/libJPEG.dylib
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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

can not run POV-Ray on ubuntu 14.04, boost 1.54,

./configure COMPILED_BY=”Dmitry <my>”

...

Libraries
---------
checking whether to link with cygwin DLL... no
checking whether to enable static linking... no
checking for the pthreads library -lpthreads... no
checking whether pthreads work without any flags... no
checking whether pthreads work with -Kthread... no
checking whether pthreads work with -kthread... no
checking for the pthreads library -llthread... no
checking whether pthreads work with -pthread... yes
checking for joinable pthread attribute... PTHREAD_CREATE_JOINABLE
checking if more special flags are required for pthreads... no
checking for boostlib >= 1.37... yes
checking whether the Boost::Thread library is available... yes
checking whether the boost thread library is usable... no
configure: error: in `/home/di/workspace2/povray-3.7-stable':
configure: error: cannot link with the boost thread library

log in attach file

Hi,

I think I may have found a bug in the subsurface/radiosity features of Povray 3.7 attached image showing the issue and sample files required to reproduce. The original files (on povray forum images thread) had different radiosity settings but these ones show the problem and only take a few seconds to render the image without AA so probably better for bug fixing/testing etc.

Thanks

Sean

The following paraboloid renders correctly:

intersection
{ quadric { <1, 0, 1>, <0, 0, 0>, <0, 1, 0>, -1 }
  cylinder { 0, y, 1 }
}

However, when I extend the clipping cylinder downward:

intersection
{ quadric { <1, 0, 1>, <0, 0, 0>, <0, 1, 0>, -1 }
  cylinder { -y, y, 1 }
}

the object disappears completely in POV-Ray 3.7 and 3.7.1. In POV-Ray
3.6.1, it renders as expected.

POV-Ray 3.7.0.unofficial (self-compiled with g++ 4.8, but completely unaltered)
POV-Ray 3.7.1-alpha.8150025.unofficial
openSUSE 13.2 GNU/Linux

This scene file illustrates the problem:

// +w480 +h240
#version 3.6; //[sic]

global_settings { assumed_gamma 1 }

camera
{ location <0, 1, -7.5958>
  look_at <0, 1, 0>
  right 2 * x
  up y
  angle 43.1038
}

#default { finish { diffuse 0.6 ambient rgb 0.15618 } }

light_source
{ <-4.3125, 9.6250, -7.4695>,
  rgb 6856.3
  fade_power 2 fade_distance 0.10417
  spotlight point_at <0, 1, 0> radius 45 falloff 90
}

box
{ -<9, 11, 9>, <9, 11, 9>
  pigment { rgb 1 }
}

plane
{ y, 0
  pigment { checker rgb 0.05 rgb 1 }
}

intersection
{ quadric { <1, 0, 1>, <0, 0, 0>, <0, 1, 0>, -1 }
  cylinder { 0, y, 1 }
  pigment { green 0.5 }
  translate <-1.25, 1, 0>
}

intersection
{ quadric { <1, 0, 1>, <0, 0, 0>, <0, 1, 0>, -1 }
  cylinder { -y, y, 1 }
  pigment { green 0.5 }
  translate <1.25, 1, 0>
}

On the right side, there should have been a cylinder capped with a paraboloid. A thread has been started in povray.bugreports. Jerome has started to look at it.

After a long parse period and a relatively quick rendering, POVray gets stuck at 99% when rendering the attached file.

Rendered at 6144x3072px with antialiasing set to 0.3.

Can anyone confirm?

As the following scene demonstrates, the “inverse” keyword produces unexpected results with quadrics.

Left: a sphere primitive as reference
Right: a sphere-shaped quadric primitive (sphere-shaped)

Top: plain
Bottom: inverse

The objects are clipped in half to better demonstrate the effect. Regular texture is shown in white, interior_texture in red; the surface normal of a selected point (blue) as returned by trace() is shown in green.

Note how the sphere’s surface normal, as well as the textures, are flipped when “inverse” is used (this is the intended standard behaviour of all objects), while the quadric’s normal and textures erroneously remain uchanged.

// +w800 +h600

#version 3.7;

global_settings{ assumed_gamma 1.0 }

#default{ finish { ambient 0.1 diffuse 0.9 specular 0.5 }} 

camera {
  perspective
  angle 40
  right     x*image_width/image_height
  location  <0,0,-10>
  look_at   <0,0,0>
}

light_source{ < 1000,3000,-3000> color rgb 1 }

background { color rgb 0.5 }

#declare T_White = texture { pigment { color rgb   1 } }
#declare T_Red   = texture { pigment { color red   1 } }
#declare T_Green = texture { pigment { color green 1 } }
#declare T_Blue  = texture { pigment { color blue  1 } }

#declare TopLeft     = sphere { 0, 1 }
#declare BottomLeft  = sphere { 0, 1 inverse }

#declare TopRight    = quadric { <1,1,1>, <0,0,0>, <0,0,0>, -1 }
#declare BottomRight = quadric { <1,1,1>, <0,0,0>, <0,0,0>, -1 inverse }

#macro Mac(Obj, P, D)
  union {
    #local N = <0,0,0>;
    #local O = <-0.6,0.4,-10>;
    #local Q = trace(Obj, O, D, N);
    #if (vlength(N) > 0)
      sphere { Q, 0.05 texture { T_Blue } }
      cylinder { Q, Q + N, 0.02 texture { T_Green } }
    #else
      cylinder { O, O + D*10000, 0.02 texture { T_Red } }
    #end
    object { Obj texture { T_White } interior_texture { T_Red } clipped_by { box { <-1,-1,-1>, <0,1,1> rotate y*30 } } }
    translate P
  }
#end

Mac(TopLeft,     <-1.2, 1.2, 0>, z)
Mac(TopRight,    < 1.2, 1.2, 0>, z)
Mac(BottomLeft,  <-1.2,-1.2, 0>, z)
Mac(BottomRight, < 1.2,-1.2, 0>, z)

As the following scene demonstrates, the “inverse” keyword produces unexpected results with fractals.

Left: a sphere primitive as reference
Right: a julia fractal

Top: plain
Bottom: inverse

The objects are clipped in half to better demonstrate the effect. Regular texture is shown in white, interior_texture in red; the surface normal of a selected point (blue) as returned by trace() is shown in green.

Note how the sphere’s surface normal, as well as the textures, are flipped when “inverse” is used (this is the intended standard behaviour of all objects), while the fractal’s normal and textures erroneously remain uchanged.

// +w800 +h600

#version 3.7;

global_settings{ assumed_gamma 1.0 }

#default{ finish { ambient 0.1 diffuse 0.9 specular 0.5 }} 

camera {
  perspective
  angle 40
  right     x*image_width/image_height
  location  <0,0,-10>
  look_at   <0,0,0>
}

light_source{ < 1000,3000,-3000> color rgb 1 }

background { color rgb 0.5 }

#declare T_White = texture { pigment { color rgb   1 } }
#declare T_Red   = texture { pigment { color red   1 } }
#declare T_Green = texture { pigment { color green 1 } }
#declare T_Blue  = texture { pigment { color blue  1 } }

#declare TopLeft     = sphere { 0, 1 }
#declare BottomLeft  = object { TopLeft inverse }

#declare TopRight    = julia_fractal{ <-0.083,0.0,-0.83,-0.025> quaternion sqr max_iteration 8 precision 20 scale 0.9 }
#declare BottomRight = object { TopRight inverse }

#macro Mac(Obj, P, D)
  union {
    #local N = <0,0,0>;
    #local O = <-0.6,0.4,-10>;
    #local Q = trace(Obj, O, D, N);
    #if (vlength(N) > 0)
      sphere { Q, 0.05 texture { T_Blue } }
      cylinder { Q, Q + N, 0.02 texture { T_Green } }
    #else
      cylinder { O, O + D*10000, 0.02 texture { T_Red } }
    #end
    object { Obj texture { T_White } interior_texture { T_Red } clipped_by { box { <-2,-2,-2>, <0,2,2> rotate y*30 } } }
    translate P
  }
#end

Mac(TopLeft,     <-1.2, 1.2, 0>, z)
Mac(TopRight,    < 1.2, 1.2, 0>, z)
Mac(BottomLeft,  <-1.2,-1.2, 0>, z)
Mac(BottomRight, < 1.2,-1.2, 0>, z)

The following scene demonstrates how media sampling method 3 gives inaccurate results with scattering media.

The scene shows four spheres with uniform media, using (left to right) sampling methods 1, 2 and 3 with default settings, and sampling method 3 with high minimum sample count, respectively.

Note how changing the sample count significantly affects the result, despite the media being uniform.

Code analysis shows that the root cause is an underestimation of the extinction effect on the light scattered by the media, corresponding in order of magnitude to half the distance between mandatory samples (as defined by minimum sample count).

The effect also leads to visible artifacts when nesting hollow objects inside the media, as can be demonstrated by un-commenting the four smaller spheres.

#version 3.7;

camera {
  perspective angle 25
  location  <0.0 , 0.0 ,-20.0>
  right     x*image_width/image_height
  look_at   <0.0 , 0.0 , 0.0>
}

light_source {
  <0,3000,-3000> color rgb 1
}

background { color rgb 0.5 }

plane {
  <0,1,0>, -1
  texture { pigment { checker color rgb<1,1,1>*1.2 color rgb<0.25,0.15,0.1>*0 } }
}

#declare T_Transparent = texture {
  pigment { color rgbt <1,1,1,1> } finish { diffuse 1 }
}

sphere { <-3,0,0>, 1.00 
  texture { T_Transparent }
  hollow
  interior {
    media {
      scattering { 1 color rgb 2 extinction 1 }
      method 1
    }
  }
}

sphere { <-1,0,0>, 1.00 
  texture { T_Transparent }
  hollow
  interior {
    media {
      scattering { 1 color rgb 2 extinction 1 }
      method 2
    }
  }
}

sphere { <1,0,0>, 1.00 
  texture { T_Transparent }
  hollow
  interior {
    media {
      scattering { 1 color rgb 2 extinction 1 }
      method 3
    }
  }
}

sphere { <3,0,0>, 1.00 
  texture { T_Transparent }
  hollow
  interior {
    media {
      scattering { 1 color rgb 2 extinction 1 }
      method 3
      samples 100
    }
  }
}

/*
sphere { <-3,0,0>,0.8 texture { T_Transparent } hollow }
sphere { <-1,0,0>,0.8 texture { T_Transparent } hollow }
sphere { < 1,0,0>,0.8 texture { T_Transparent } hollow }
sphere { < 3,0,0>,0.8 texture { T_Transparent } hollow }
*/

When using mesh_camera type ‘0’

The first line of the mesh output seems to be repeated resulting in incorrect light colour values.

If the first line of the texture is skipped then the values seem to be correct.

Height=36084

[640×360, AA 0.3]
Width=640
Height=36084
Antialias=On
Antialias_Threshold=0.3

should be:

[640×360, AA 0.3]
Width=640
Height=360
Antialias=On
Antialias_Threshold=0.3

On Windows 7 and newer operating systems, some programs are able to display their progress in the taskbar buttons.

Here is an example of Chrome downloading something and showing the progress in the taskbar:

http://www.winbeta.org/sites/default/files/news/oldfashinoned.jpg

Here is an example with Paint.NET instead:

http://www.getpaint.net/images/pdn351_superbarProgress.png

I think this feature would use fewer CPU resources than a) minimizing/maximizing the whole application window each time you want to check progress, or b) hovering the mouse over the taskbar button to show the thumbnails.

#fopen directive w/o OPEN_TYPE (yeah, I forgot it, some other languages have ‘read’ as default value)

expected behavior:
Parse error msg “line XXX, OPEN_TYPE missing in #fopen directive”, then stop.

observed behavior:
crash - Segfault err (core dump) in Parsing stage

minimal working example attached

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
}

Hello,

when I use an image_map within a pigment_map (for example only a half of a box gets the image_map), the image_map is not rendered correctly.

For example when I have this box (scene and images are attached)

box {
	0, 1
	pigment {
		gradient z
		pigment_map {
			[0.4 image_map { png "test.png" } ]
			[0.4 color Cyan ]
		}
	}
}

So on the front you should see the image of test.png (in the attached scene it’s just red).
But on some pixels of the front you see the cyan color of the distant half of the cube.

Rendering the scene mutliple times produces the same result.

Rendering the scene at 200×150 is sufficiant.

povray +W200 +H150 scene.pov

I tested it with 3.6.1 and 3.7.0 beta 32 on Linux

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

In POV-ray 3.7 beta 33 under Windows XP, the editor’s MRU list incorrectly handles files that have a comma in the pathname. Only the part of the name before the comma appears on the MRU list, but the rest of the name is left off.
Consequently, the file cannot be reopened via the MRU list. The file is also not reopened on launch if pov was closed with the file open. This also occurs in 3.6.1, I haven’t tried it under 3.6.2 yet.

Interestingly enough, a quick peek in the registry shows that both 3.6 and 3.7
are saving the entire path name correctly under HKEY_CURRENT_USER\Software\POV-Ray\v3.6\POV-Edit\Recent (or \v3.7\POV-Edit\Recent).

This seems to be limited strictly to the editor’s MRU list. The file can still be opened normally using the open dialog box. Calling POV-ray from the command line and using a file or path name with commas in it works correctly. Included files with commas in the path work correctly, and the Tools→Edit last rendered file/View last rendered file work correctly also.

To duplicate, save a file with a comma in the pathname (either in the directory
name or the filename itself). Close the file, then attempt to reopen it using the MRU list in the file menu.

In the following scene, the mesh object will always cast a fully-opaque shadow, even if the image has an alpha channel:

camera {
  location  <0.5, 1.0, -1.0>
  look_at   <0.5, 0.0,  0.5>
}

light_source { <0, 30, 0> color rgb 1 }

mesh {
    triangle { <0,0,0>, <1,0,0>, <1,0,1> uv_vectors <0,0>, <1,0>, <1,1> }
    triangle { <0,0,0>, <1,0,1>, <0,0,1> uv_vectors <0,0>, <1,1>, <0,1> }
    texture { pigment { uv_mapping image_map {png "FOOBAR.png"} } }
}

plane { y, -0.1 pigment { color rgb 1 } }

The following modification to the texture will give the expected results:

    texture { uv_mapping pigment { image_map {png "FOOBAR.png"} } }

The problem can be observed with both POV-Ray 3.7 (tested with beta.34), as well as 3.6 (tested with 3.6.2).

...for instance nVidia’s CUDA architecture, discussed here and other places.

General consensus is that it’s not worth the effort if only a partial set of POV-Ray’s features are possible.

Linux beta 32, 64bits, compiled from sources.

povray -w800 -h600 +a0.3 +kfi1 +kff78
-L/usr/local/share/povray-3.7/scenes/incdemo
-Ii_internal.pov +WT5 +R4 +AM1 +MB1

Important issue: +WT5 +MB1

Seems Fine for +WT1 +MB1
Also fine for +WT5 +MB9

The intersection with the containing box displays some two-shades of grey
random checkered patterns.
Size of square looks like size of renderering thread. Position too.

Impacted frames (of 78):
01, 02, 03, 30, 48, 74, 76.