Setting File_Gamma=1.0 produces unexpectedly bright output files for most output file formats, as if File_Gamma was set to 2.2 instead.

The underlying problem is a bug that, when File_Gamma is set to exactly 1.0, causes the encoding gamma function to be undefined, which was not meant to happen in current versions, and instead was reserved for future versions to signal that a file-format-specific default encoding gamma should be used. The image file output handlers already support this, most of them choosing the sRGB transfer function, giving roughly the same output as setting File_Gamma=2.2.

As a preliminary workaround, users may want to set File_Gamma=1.02 (any value smaller than 0.99 or greater than 1.01 should do).

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.

Recruit version 3.7 documentation editors from the users community.

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
}

This item may need to be merged with item FS#81. This is another sphere sweep bug, though they are of different spline types.

The code is

#include "colors.inc"

camera {
  location  <0, 0.0, -4.0>
  direction 1.5*z
  right     x*image_width/image_height
  look_at   <0.0, 0.0,  0.0>
}

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


#declare i_start = 0;
#declare i_stop = 3;
#declare i_step = 0.05;
#declare i_inc = i_start;
sphere_sweep {
  linear_spline                 // linear curve

  (i_stop - i_start)/i_step + 1,    // number of specified sphere positions
#while(i_inc<=i_stop)
  
  #declare y_coor = 0.23*sin(7.1*i_inc);
  <i_inc, y_coor, 0>, 0.05
        #declare i_inc = i_inc + i_step;
 
        
#end

pigment{color Orange}

}

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.

Source code inspection during examination of issues with the scene published at http://povray.sitewww.ch/?p=177 show the following issues with current (beta.34) implementation of dispersion in POV-Ray 3.7:

• The same adjustment to the IOR that is applied at the very first dispersion interface is erroneously applied to all subsequent interfaces.

• As an exception, dispersion adjustment is erroneously not applied to any interface defined by the surface of a non-dispersing object embedded into a dispersing object.

While this still allows to use dispersion for artistic effect, it is neither physically realistic, nor does it match 3.6 behavior.

#macro A()
  #local foo = function { x }
  foo
#end

#local bar = A();

This causes either a segfault, corruption detected by malloc, or “Parse Error: Unknown user defined function”.

After some debugging I think this is what happens.

In source/backend/parser/parse.cpp, Parser::Parse_RValue is called to define the value of bar. Get_Token is called, which invokes A() and which ultimately returns foo as a FUNCT_ID_TOKEN. This token is handled by CASE_VECTOR in Parse_RValue. The relevant clause calls Parse_Unknown_Vector to parse additional tokens (e.g. “foo ( 1 )”). There aren’t any other tokens, but in the process of determining that, #end is reached and Return_From_Macro destroys the symbol table of A, including foo.

So by the time the CASE_VECTOR clause decides that foo is a function identifier that should be copied, the function is destroyed (both the function itself and its number in the symbol table). So here:

    Temp_Data  = (void *) Copy_Identifier((void *)*Token.DataPtr,*Token.NumberPtr);

if *Token.DataPtr (in this case, a function index) was already overwritten, we get “Unknown user defined function”; if it still has the valid function number, it increments the reference count of the function (which has already been freed) back from 0, and we get a double-free later.

A similar problem occurs when foo is a spline.

A tentative patch for the function case is attached.

The code to attenuate transmitted photons according to surface texture was apparently duplicated during refactoring of the source code for version 3.7. Behavior has changed from 3.6 to 3.7 (beta.36) accordingly, as can be demonstrated with the following scene:

global_settings {
  assumed_gamma 1.0
  max_trace_level 10
  photons { spacing 0.02 }
}

camera {
  right x*image_width/image_height
  location  <0,2.6,-10>
  look_at   <0,0.75,0>
}

light_source {
  <500,300,150>
  color rgb 1.3
  photons {
    refraction on
    reflection on
  }
}

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>]
    }
  }
}

plane {
  y, 0
  texture { pigment { color rgb <1.0, 0.8, 0.6> } }
}

#declare M_Glass=
material {
  texture {
    pigment {rgbt 1}
    finish {
      ambient 0.0
      diffuse 0.05
      specular 0.6
      roughness 0.005
      reflection { 0.1, 1.0 fresnel on }
      conserve_energy
    }
  }
  interior {
    ior 1.5
    fade_power 1001
    fade_distance 0.9
    fade_color <0.5,0.8,0.6>
  }
}

#declare M_PseudoGlass2=
material {
  texture {
    pigment {rgbf <0.8,0.2,0.2,0.8>}
    finish {
      ambient 0.0
      diffuse 0.05
      specular 0.6
      roughness 0.005
      reflection { 0.1, 1.0 fresnel on }
      conserve_energy
    }
  }
  interior {
    ior 1.0
  }
}

sphere {
  <1.1,1,-1.3>, 1
  material { M_Glass }
  photons {
    target 1.0
    refraction on
    reflection on
  }
}

box {
  <2.4,0,-2.3>, <2.6,4,0.3>
  material { M_PseudoGlass2 }
  photons { target 1.0 refraction on reflection on }
}

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.

Reflections in multi-layered textures are broken in 3.7 betas, as can be demonstrated with the following scene showing two reflective hemispheres on a checkered plane:

camera {
  location  <1.0, 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>
}

default {
 finish { diffuse 0 ambient 0 specular 0 }
}

// ----------------------------------------

plane {               // checkered floor
  y, -1
  texture
  {
    pigment { checker color rgb 1 color blue 1 }
    finish{ diffuse 0.8 ambient 0.1 }
  }
}

// left hemisphere
intersection {
  sphere { 0, 1 }
  plane { x, -0.002 }
  texture {
    pigment { color rgb 1 }
    finish{ reflection { 0.5 } }
  }
  texture {
    pigment { color rgbt 1 }
    finish{ reflection { 0.4 } }
  }
  texture {
    pigment { color rgbt 1 }
    finish{ reflection { 0.1 } }
  }
}

// right hemisphere
intersection {
  sphere { 0, 1 }
  plane { -x, -0.002 }
  texture {
    pigment { color rgb 1 }
    finish{ reflection { 1.0 } }
  }
}

Note that the reflection parameters of the left, multi-layered hemisphere sum up to 1.0, i.e. the same value as used in the single layer in the right hemisphere.

The first attached file (test_3.6.2.png), rendered with POV-Ray 3.6.2, shows the expected output: Both hemispheres appear to have the same reflectivity.

The second attached file (test_3.7.0.beta37a.png), rendered with POV-Ray 3.7.0.beta.37a, shows a much brighter left (multi-layered) sphere.

As it turns out, in order to get the expected result with POV-Ray 3.7.0.beta.37a, the reflectivity of each layer must be divided by 3, 2 and 1, respectively (which obviously does not sum up to 1.0):

  ...
  texture {
    pigment { color rgb 1 }
    finish{ reflection { 0.5 / 3 } }
  }
  texture {
    pigment { color rgbt 1 }
    finish{ reflection { 0.4 / 2 } }
  }
  texture {
    pigment { color rgbt 1 }
    finish{ reflection { 0.1 / 1 } }
  }
  ...

Multi-textured blobs are broken with 3.7 beta 40 when used inside an intersection, as can be demonstrated by the following scene:

#default { texture { pigment { rgb 1 } } }

camera {
  right x*image_width/image_height
  location  <0,1.5,-4>
  look_at   <0,1,0>
}

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

difference { blob {
  threshold 0.6
  sphere { < 0.75,   0,    0>, 1, 1 texture { pigment { color red 1 } } }
  sphere { <-0.375,  0.65, 0>, 1, 1 texture { pigment { color green 1 } } }
  sphere { <-0.375, -0.65, 0>, 1, 1 }
} }

With POV-Ray 3.7.0 beta 40, the entire blob is rendered with the default texture.

The same problem can be seen with “difference” or “merge” instead of “intersection”.

Omitting the CSG “envelope”, using “union”, or assigning the blob to a variable first and then using it inside an intersection, will yield the expected result.

POV-Ray 3.62 renders all variants as expected.

According to initial analysis, the problem appears to be caused by the dual use of the “MULTITEXTURE_FLAG”, which is used in CSG to indicate use of the “cutaway_textures” feature, and in blobs to indicate per-element texturing. (The same flag is also used in meshes to indicate per-face or per-vertex texturing, so similar problems are to expected there.)

My proposal is to use an entirely separate flag for the “cutaway_textures” feature (the blob and mesh can safely continue to share the MULTITEXTURE_FLAG).

I rendered attached .pov file with both 3.62 and 3.7RC1, and got different output between them.
In 3.7RC1, it looks like no_reflection option of the black sphere doesn’t work.

If the image is more than 1270 pixels wide or more than 720 pixels high, animation fails with a segmentation fault during the second rendered frame. This happens after parsing is complete and the .pov-state file is created. The last message line is the “[Rendering...]” line. (There is also a separate, but possibly related, issue that the output display does not work for these renders.)

On one occasion, POV-Ray hung, and I had to ctrl-Z kill -9 out of it.

On another occasion, instead of the segmentation fault, I got the message:

povray: xcb_io.c:140: dequeue_pending_request: Assertion `req == dpy->xcb->pending_requests' failed.
Aborted

There is no crash when -D is used.

I have not run an animation this large in Windows, so I don’t know if it’s a problem there.

Neither problem occurs in POV-Ray 3.6.1.

I used the following source code:

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

Platform

Libraries

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
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     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
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  0x7fff8954a000 -     0x7fff89598fff  libauto.dylib (??? - ???) <D8AC8458-DDD0-3939-8B96-B6CED81613EF> /usr/lib/libauto.dylib
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  0x7fff895bc000 -     0x7fff896c3fe7  libsqlite3.dylib (9.6.0 - compatibility 9.0.0) <EE02BB01-64C9-304D-9719-A35F5CD6D04C> /usr/lib/libsqlite3.dylib
  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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  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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  0x7fff8fc8e000 -     0x7fff8fe62ff7  com.apple.CoreFoundation (6.7.2 - 635.21) <62A3402E-A4E7-391F-AD20-1EF20236CE1B> /System/Library/Frameworks/CoreFoundation.framework/Versions/A/CoreFoundation
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  0x7fff90282000 -     0x7fff90282fff  com.apple.ApplicationServices (41 - 41) <89B6AD5B-5C75-3E83-8C2B-AA7F4C55E400> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/ApplicationServices
  0x7fff902d0000 -     0x7fff902d4fff  libdyld.dylib (195.5.0 - compatibility 1.0.0) <380C3F44-0CA7-3514-8080-46D1C9DF4FCD> /usr/lib/system/libdyld.dylib
  0x7fff902d5000 -     0x7fff9036bff7  libvMisc.dylib (325.4.0 - compatibility 1.0.0) <642D8D54-F9F5-3FBB-A96C-EEFE94C6278B> /System/Library/Frameworks/Accelerate.framework/Versions/A/Frameworks/vecLib.framework/Versions/A/libvMisc.dylib
  0x7fff9036c000 -     0x7fff9038bfff  libresolv.9.dylib (46.1.0 - compatibility 1.0.0) <0635C52D-DD53-3721-A488-4C6E95607A74> /usr/lib/libresolv.9.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

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.

The ability to specify an exact name for output images during animations would be great. As it is, POV-Ray appends a numerical designation to each image (e.g. image001.png, image002.png, etc. Overriding this behavior would allow certain tasks to be accomplished without cluttering the hard drive. For instance, an image could be rendered over and over again. Certain things like cellular automata, ripple tank simulations and feedback fractals could be performed without the resulting long list of images in a given directory.

The command line option could be in the form of +oefile/+Output_File_Name_Exact=file or some such.

I’ve had a series of what appear to be a hang up’s. They passed parse, reported some stats and issued the Rendering... message and opened the preview window, but never progressed. They continued to accumulate cpu time until I eventually had to kill -9, softer didn’t work.

I’ve been dismissing them up until now wanted to speak up because I finally got this crash:

29623 Segmentation fault

Here’s some observed behaviors:

In my scene I have a Round_Box_Union with /just/ a pigment that rendered fine, but when I added a wood texture from the distribution includes, it hung up after I tried to transform the texture in any way. Tried other distribution textures ... same thing.

I spent time going through different scenarios looking for a common cause (thinking I’m doing something wrong). Eventually I arrived at the point that I killed a hung render, and restarted the same render with no changes. Sometimes it would render, sometimes not ... I finally got the above mentioned Round_Box_Union to behave with a simple reflective texture, and the rounding parameter had to be above 0.1 ... I settled at 0.125. OK by now you’re thinking WTF right?

No more problems until I accidentally (typo) put an additional light_source at the same location as another light_source. It also hung sometimes, and rendered fine sometimes after a kill ... no SDL changes.

Now I can’t tell you exactly what I was doing when the seg fault happened, but I /do/ know I just restarted the render with no changes. I’m starting to think there’s some kind of instability happening here. I realize that I’m probably the only team member spending any real time with the application, so none of you probably haven’t noticed anything suspicious.

Any comments ... ideas ... suggestions?

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.

The documentation states mesh_camera 0 should produce 1 pixel per index but it currently seems to produce 1 lighting pixel per face.

This output seems fairly meaningless as using this data for vertex colours (presumably the intention for mesh_camera 0) would result in a flat shaded model.

Logically it would make more sense to output 1 pixel per vertex instead of 1 pixel per face. Another solution might 1 pixel per face index (as per documentation) although POV would need to record which indices had already been computed otherwise it could end up duplicating computation.

At the moment I’ve written a code workaround for my exporter which produces a special mesh but this is obviously a much more complex solution to a fairly simple problem.

Output images are 0.5 pixels too right and 0.5 pixels too down (mesh_camera_bug.pov).

The error is cumulative when image files are used again as texture (run 10 times mesh_camera_bug_reuse.pov).

This can be compensated by adjusting UV maps (mesh_camera_fix.pov and mesh_camera_fix_reuse.pov).

Tested with and without anti-aliasing.

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.

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.

I’ve been trying to upgrade povray 3.6.1 to 3.7-beta-32. I’ve configured with no additional arguments, and the configure dies with:

checking whether to build the boost thread library from sources... no
checking for boostlib >= 1.35... yes
checking whether the Boost::Thread library is available... yes
checking for exit in -lboost_thread... no
checking for exit in -lboost_thread-boost_thread... no
configure: error: Could not link against boost_thread-boost_thread !

I figured that the problem was with my boost installation (1.35) and upgraded boost to 1.39; the problem remains. I tried to see if exit was defined in libboost_thread and/or libboost_thread-boost_thread and it isn’t. Just to be sure that my currrent setup works for the released version, I rebuilt/reninstalled 3.6.1, which went without problem.

I’m on a slackware-12.2 box, using gcc-4.4.0.

Originally resolved in https://bugs.gentoo.org/show_bug.cgi?id=425450.
Attached is a patch with Gentoo-specific code removed.

There are two parts in this issue:

• The newer boost library requires downstream users to explicitly link to the boost system library (-lboost_system).
• The newer boost library replaced TIME_UTC with TIME_UTC_, because glibc added TIME_UTC.

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

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

The following files were garbled in changelist #4648 by stripping all line terminators, making the files unusable:

• .../scenes/advanced/cats/cattext.inc
• .../scenes/animations/life/blink4.inc
• .../scenes/animations/life/walker.inc

Line terminators of these files were already problematic in previous versions of the file, having been CR-only.

The following files changed with #4648 should be reviewed closely as well, as they were previously CR-only, too, and at least some of them exhibit some peculiarities regarding line and/or file terminators:

• .../scenes/animations/pentmap/pentmap.ini
• .../scenes/animations/pentmap/pentmap.pov
• .../scenes/animations/slinky/slnk.ini
• .../scenes/incdemo/metals/metals.doc
• .../scenes/incdemo/stones/stones.doc
• .../scenes/incdemo/woods/morewood.doc
• .../scenes/incdemo/woods/woods.doc
• .../scenes/textures/pigments/skies/skies.doc

Some sample scenes are no longer up-to-date, causing warnings, and should be fixed. For instance, the advanced/benchmark scene still includes “Buffer_Output=Off” and “Buffer_Size=0” in its .ini file. This should be checked systematically, and fixed as appropriate.

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

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

After a recent update on the POV-Wiki the GuMax skin doesn’t recognize MediaWiki:Common.css entries.

Develop MediWiki extension to extract documentation sets from the POV-Wiki.

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.

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.

The documentation entries for shapes.inc, shapes_old.inc, shapes2.inc, shapesq.inc, etc. should have thumbnails next to the object descriptions.

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.

Currently neither of these pages:

  http://www.povray.org/documentation/view/3.7.0/253/

  http://www.povray.org/documentation/view/3.7.0/90/

mention that the background can be transparent. Any normal user will try to give “background { ... }” a transparent color, see that it doesn’t work, and assume that POV-ray can’t do it.

The pages should mention the +UA command-line option, which enables the transparency.

I cannot edit any pages on wiki.povray.org, even after confirming my e-mail address.

This means that I cannot add any documentation, help improve the documentation, fix errors or help in any other way.

If you want contributions to the documentation, you should let users edit pages.

This is an annoying little bug in the Windows GUI:

Installed 3.7 RC07 on Windows 8.
No previous povray installation on this machine.

How to reproduce error :

- Open a file in the editor.

- Right click on the files tab. This opens a popup menu showing “Open containing folder/Copy file to clipboard/....”.

-Now each selection in this menu does open the containing Folder. I cannot close or run any of the other actions in this menu.

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.