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.

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.

The following (bogus) SDL code causes POV-Ray 3.7 beta to crash hard with an access violation:

#include "fubar.inc"
Bar(42)
#macro FooBar() #end

//fubar.inc
#macro Foo(Fnord) #end
#macro Bar(Ignord) Foo(23 #end

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).

Lines 1217, 1241 and 1242 of benchmark.cpp must be change to use #declare instead of local for A and its elements.
(because A is returned by the macro)

	"#macro L_GetVN(ResSpl)\n"
	"   #local I = 0;\n"
	"   #declare A = array[ResSpl+1][2]\n"                      //  <============== this is line 1217
	"   #while (I<=ResSpl)\n"
	"      #local P0 = 0+<FnA(I/ResSpl), I/ResSpl, 0>;\n"
	"      #if (P0.x=0 & P0.z=0)\n"
	"         #local P0 = <1e-25,P0.y,1e-25>;\n"
	"      #end\n"
	"      #if (I=0)\n"
	"         #local P1 = 0+<FnA(((I-0.5)/ResSpl)), I/ResSpl, 0>;\n"
	"         #local P2 = 0+<FnA(((I+0.5)/ResSpl)), I/ResSpl, 0>;\n"
	"      #else\n"
	"         #local P1 = P2;\n"
	"         #local P2 = 0+<FnA(((I+0.5)/ResSpl)), I/ResSpl, 0>;\n"
	"      #end\n"
	"      #local P3 = vrotate(P0,<0,1,0>);\n"
	"      #local P4 = vrotate(P0,<0,-1,0>);\n"
	"      #local B1 = P4-P0;\n"
	"      #local B2 = P2-P0;\n"
	"      #local B3 = P3-P0;\n"
	"      #local B4 = P1-P0;\n"
	"      #local N1 = vcross(B1,B2);\n"
	"      #local N2 = vcross(B2,B3);\n"
	"      #local N3 = vcross(B3,B4);\n"
	"      #local N4 = vcross(B4,B1);\n"
	"      #local N = vnormalize((N1+N2+N3+N4)*-1);\n"
	"      #declare A[I][0] = P0;\n"                               // <============== this is line 1241
	"      #declare A[I][1] = N;\n"
	"      #local I = I+1;\n"
	"   #end\n"
	"   A\n"
	"#end\n"

Same update should also be reported into the distributed scene benchmark.pov

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.

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 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.

Cone is not on good place when first base point is lower then end cap point.
Example:

cone { <0, 0, 0>, 2, <0, 1, 0>, 1 } - good
cone { <0, 0, 0>, 1, <0, 1, 0>, 2 } - bad

This is on 3.7 beta 35 version.

Hi,

following scene will not be rendered correctly in 3.7.beta.35a:

http://lib.povray.org/collection/beamtest/cousin%20ricky%201.1/beamtest.html

maybe it is a configuration problem or it is a real bug.

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}

}

I’ve tried to model this setup:
http://kschwebke.webng.com/povray/ior-interfaces/drawing.png with the following SDL:
http://kschwebke.webng.com/povray/ior-interfaces/rs2.pov.txt

A small overlap between the two transparent solids is needed, because a gap
would lead to total reflection. The camera in the test scene looks in the
direction of the ray in the setup drawing. The setup is surrounded with angular
markers, so one can easily read the final resulting looking angle.

POV-Ray 3.6.1 renders the expected result (~53° in the center of the screen):
http://kschwebke.webng.com/povray/ior-interfaces/rs2-35.jpeg

POV-Ray 3.7.0b35a (compiled Unix source) renders a different
(and in my opinion wrong) angle (~67°), however – for the very same scene file:
http://kschwebke.webng.com/povray/ior-interfaces/rs2-37b35a.jpeg

I’ve started a discussion about this issue in povray.beta-test: http://news.povray.org/povray.beta-test/thread/%3Cweb.4bba4677730ab9f3e8c084b40%40news.povray.org%3E/

All linked documents are also 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 }
}

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 } }
  }
  ...

Currently, many POV scenes/include files behave differently depending on the basic units used within the scene. Scaling them differently can affect things like ior and media. A master system variable that users can set to configure the scene’s units would be beneficial for sharing and collaboration purposes, so that person A’s glass interior works correctly in person B’s wine glass scene. Just like the #version system variable, it should have a default value but should be possible to explicitly override.

unixoptions.cpp has a getenv(”HOME”) that does an assignment without checking to see if getenv returns NULL.

This causes an immediate and unceremonious segfault in those situations where $HOME is not set such as in the case where povray is launched by a daemon.

Best solution might be to set the home to /tmp and print a warning message about $HOME not being set.

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.

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.

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 .

#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.

How to do it: (with raddem.ini & raddem.pov from distributed scenes, copied in local directory)

1. run “povray raddem.ini” until frame 6 or more (irrelevant, at least frame 1 & 2 are needed), interrupt the render.
2. restart “povray raddem.ini +C”

It fails at frame 2 with
Possible Parse Error: Cannot find file ‘raddem.pov’, even after trying to append
file type extension.
Parse Error: Cannot open input file.
Fatal error in parser: Cannot parse input.
Render failed

The detection of frame 1 is fine.

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...

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

Consider the following script:

  #fopen F "foo.txt" read
  #read (F, Foo)
  #debug concat ("'", Foo, "'\n")
  #fclose F

Now assume that foo.txt erroneously contains unquoted text (which will result in a parse error):

  Blah

When the error is reported, POV-Ray for Windows will helpfully open foo.txt, but any attempt to save a corrected version of foo.txt will fail until you exit the POV-Ray GUI, presumably because foo.txt is not properly closed by the parser.

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.

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.

When using the ‘background’ directive with a transparent color, for example:

  background { color rgbt <0, 0, 0, 1> }

the final image is still opaque (both the one displayed in the render window and the PNG actually saved to disk).

Expected behaviour is for it to be transparent.

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.

Thread safety issue in functions using splines. 3.7.0.RC7.

First vetting in p.bugreports where several users were able to reproduce the fail on the following systems:

1) Ubuntu 12.1 i7 920 using 3.7.0.RC7
2) Ubuntu 12.04, AMD 2431 CPU, Linux 3.2.0-45 kernel using 3.7.0.RC7 (g++ 4.6 @x86_64-unknown-linux-gnu)
3) POV-Ray 3.7.0.RC7 (icpc 13.1.0 @x86_64-unknown-linux-gnu)

 Intel(R) Xeon(R) CPU E5-2680 0 @ 2.70GHz

 uname -or
 2.6.32-279.14.1.el6.x86_64 GNU/Linux

 lsb_release -irc
 Distributor ID: CentOS
 Release:        6.3
 Codename:       Final

4) Confirmed with openSUSE 12.2.
5) Just to add to the system list: with Windows and a core i7 one yields the same result.
6) “Le_Forgeron” ran under Intel Inspector (XE 2013) and provided this feedback :

 ...
  that might be less than 60 seconds, but with Intel Inspector (XE 2013),
 it becomes 42:50 (just 14 data races, oh well, that's just so friendly).

 ID  Type Sources Modules State
 P1  Data race isosurf.cpp; mutex.hpp povray New
 P2  Data race mutex.hpp; povms.cpp povray New
 P3  Data race povray.cpp povray New
 P4  Data race povray.cpp povray New
 P5  Data race mutex.hpp; pov_mem.cpp; splines.cpp povray New
 P6  Data race mutex.hpp; pov_mem.cpp; splines.cpp povray New
 P7  Data race mutex.hpp; pov_mem.cpp; splines.cpp povray New
 P8  Data race recursive_mutex.hpp; scene.cpp; task.cpp; taskqueue.cpp;
 view.cpp povray New
 P9  Data race condition_variable.hpp; vfe.cpp; vfesession.cpp povray New
 P10  Data race condition_variable.hpp; unixconsole.cpp; vfesession.cpp
 povray New
 P11  Data race condition_variable.hpp; unixconsole.cpp; vfesession.cpp
 povray New
 P12  Data race unixconsole.cpp; vfesession.cpp; vfesession.h povray New
 P13  Data race unixconsole.cpp; vfesession.cpp povray New
 P14  Data race [Unknown]; unixconsole.cpp; vfesession.cpp
 libboost_thread.so.1.49.0; povray New

 Numbers 2, 3, 4, 8, 9, 10, 11, 12, 13 & 14 are related to the handling
 of session (and occur once or twice only, excepted #8, four times).

 Number 1 is about isosurface (adjusting gradient at isosurf.cpp:1099 vs
 1098 (testing its value), and copying the isosurface) (IMHO, rendering
 threads updating the object... not the best move without some
 atomic/protection (and not sure a DBL is/can be atomic)) (occurs 2505
 times).

 Number 5, 6 and 7 are about splines
 * sp->Cache_Type & Cache_Point, splines.cpp :803 vs :814/815 (2024 times)
 * sp->Cache_Valid, :805 vs :813 vs :904 (1770 times)
 * sp->Cache_Data, :807 vs :903 (5025 times)

 Only my 0.02¢ (yes, very cheap), but it seems to confirm

For test code see attached files or SplineThreadSafety.pov attachment to
p.bugreports and images were posted to p.b.images.

Issue shows up any time more than one thread is used. Use of AA tends to hide
the problem so do not use it if using the output image for testing.

Thanks.
Bill P.

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
  0x7fff89429000 -     0x7fff8942afff  libunc.dylib (24.0.0 - compatibility 1.0.0) <337960EE-0A85-3DD0-A760-7134CF4C0AFF> /usr/lib/system/libunc.dylib
  0x7fff8942b000 -     0x7fff89436fff  com.apple.CommonAuth (2.2 - 2.0) <77E6F0D0-85B6-30B5-B99C-F57104DD2EBA> /System/Library/PrivateFrameworks/CommonAuth.framework/Versions/A/CommonAuth
  0x7fff89437000 -     0x7fff8953cfff  libFontParser.dylib (??? - ???) <D2E56B6E-3182-3667-A78C-4172C435523A> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ATS.framework/Versions/A/Resources/libFontParser.dylib
  0x7fff8953f000 -     0x7fff8953ffff  com.apple.Carbon (153 - 153) <C1A30E01-E113-38A0-95CA-99360F92A37A> /System/Library/Frameworks/Carbon.framework/Versions/A/Carbon
  0x7fff89540000 -     0x7fff89545fff  libcompiler_rt.dylib (6.0.0 - compatibility 1.0.0) <98ECD5F6-E85C-32A5-98CD-8911230CB66A> /usr/lib/system/libcompiler_rt.dylib
  0x7fff89546000 -     0x7fff89549fff  libCoreVMClient.dylib (??? - ???) <28CB0F3F-A202-391F-8CAC-FC9A1398A962> /System/Library/Frameworks/OpenGL.framework/Versions/A/Libraries/libCoreVMClient.dylib
  0x7fff8954a000 -     0x7fff89598fff  libauto.dylib (??? - ???) <D8AC8458-DDD0-3939-8B96-B6CED81613EF> /usr/lib/libauto.dylib
  0x7fff8959a000 -     0x7fff895bbfff  libPng.dylib (??? - ???) <E2B52527-4D0C-3595-BB13-8E8EF364E998> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ImageIO.framework/Versions/A/Resources/libPng.dylib
  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
  0x7fff8a1b0000 -     0x7fff8a202ff7  libGLU.dylib (??? - ???) <DB906997-0F70-3469-BA0E-2F1DDBEAD8D5> /System/Library/Frameworks/OpenGL.framework/Versions/A/Libraries/libGLU.dylib
  0x7fff8a361000 -     0x7fff8a4c8fff  com.apple.CFNetwork (520.5.1 - 520.5.1) <08F70E26-5456-3BFB-8192-00D3CE40D3C9> /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/CFNetwork.framework/Versions/A/CFNetwork
  0x7fff8a4c9000 -     0x7fff8a56afff  com.apple.LaunchServices (480.40 - 480.40) <C936A07F-0CF8-3F8E-BDB3-76AA7611B4CA> /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/LaunchServices.framework/Versions/A/LaunchServices
  0x7fff8a56b000 -     0x7fff8a897fff  com.apple.HIToolbox (1.9 - ???) <CCB32DEA-D0CA-35D1-8019-E599C8007AB6> /System/Library/Frameworks/Carbon.framework/Versions/A/Frameworks/HIToolbox.framework/Versions/A/HIToolbox
  0x7fff8a94a000 -     0x7fff8a961fff  com.apple.CFOpenDirectory (10.7 - 146) <E71AE4A2-F72B-35F2-9043-9F45CF75F11A> /System/Library/Frameworks/OpenDirectory.framework/Versions/A/Frameworks/CFOpenDirectory.framework/Versions/A/CFOpenDirectory
  0x7fff8aa14000 -     0x7fff8aa1afff  IOSurface (??? - ???) <77C6757B-D357-3E34-9424-48F962B5CC9C> /System/Library/Frameworks/IOSurface.framework/Versions/A/IOSurface
  0x7fff8aa5e000 -     0x7fff8aa60fff  libquarantine.dylib (36.7.0 - compatibility 1.0.0) <8D9832F9-E4A9-38C3-B880-E5210B2353C7> /usr/lib/system/libquarantine.dylib
  0x7fff8aa61000 -     0x7fff8ab6efff  libJP2.dylib (??? - ???) <6AF1F5FC-34D4-3278-BEBB-0712B81890B4> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ImageIO.framework/Versions/A/Resources/libJP2.dylib
  0x7fff8ab6f000 -     0x7fff8ad71fff  libicucore.A.dylib (46.1.0 - compatibility 1.0.0) <0176782F-9526-3905-813A-7A5676EC2C86> /usr/lib/libicucore.A.dylib
  0x7fff8aff3000 -     0x7fff8b002fff  com.apple.opengl (1.8.1 - 1.8.1) <51B34133-CEE3-3FC6-82AC-ADF567AE673C> /System/Library/Frameworks/OpenGL.framework/Versions/A/OpenGL
  0x7fff8b003000 -     0x7fff8b015ff7  libbsm.0.dylib (??? - ???) <349BB16F-75FA-363F-8D98-7A9C3FA90A0D> /usr/lib/libbsm.0.dylib
  0x7fff8b442000 -     0x7fff8b466fff  com.apple.Kerberos (1.0 - 1) <1F826BCE-DA8F-381D-9C4C-A36AA0EA1CB9> /System/Library/Frameworks/Kerberos.framework/Versions/A/Kerberos
  0x7fff8b4dc000 -     0x7fff8b706fe7  com.apple.CoreData (104.1 - 358.14) <6BB64605-8DA7-337D-A2AB-A3346A421CBD> /System/Library/Frameworks/CoreData.framework/Versions/A/CoreData
  0x7fff8b707000 -     0x7fff8b712ff7  com.apple.speech.recognition.framework (4.0.21 - 4.0.21) <6540EAF2-E3BF-3D2E-B4C1-F106180D6F20> /System/Library/Frameworks/Carbon.framework/Versions/A/Frameworks/SpeechRecognition.framework/Versions/A/SpeechRecognition
  0x7fff8b770000 -     0x7fff8b7f5ff7  com.apple.Heimdal (2.2 - 2.0) <FF0BD9A4-6FB0-31E3-ABFB-563FBBEC45FC> /System/Library/PrivateFrameworks/Heimdal.framework/Versions/A/Heimdal
  0x7fff8b7f6000 -     0x7fff8bc23fff  libLAPACK.dylib (??? - ???) <4F2E1055-2207-340B-BB45-E4F16171EE0D> /System/Library/Frameworks/Accelerate.framework/Versions/A/Frameworks/vecLib.framework/Versions/A/libLAPACK.dylib
  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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  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.

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

Input image files may have been created with gamma pre-correction for some specific target gamma, which may vary from image to image. Some file formats like PNG or HDR support embedding gamma pre-correction information in the image file, but this information may be missing or faulty, and some formats don’t support it at all. Additionally, it may be desirable to tamper with an input image’s gamma for artistic reasons.

Therefore, I suggest adding a means to explicitly specify input images’ originally intended target gamma on a per-image basis, like:

image_map { jpeg "MyImage.jpg" assumed_gamma 1.8 }

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>); 

Reflective texture maps can cause a stack overflow crash.

sphere{0,1
  texture{
   bozo
   texture_map{
    [0 pigment{rgb 0}]
    [1 pigment{rgb 0} finish{reflection 1}]
   }
  }
}

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

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.

Versions of POV-Ray prior to 3.7 had the ability to write the image output as a stream to STDOUT. This was particularly useful in unix as it allowed POV-Ray output to be directly piped to other processes.

The introduction of SMP and the associated non-linear generation of pixels complicates stream output to the extent that it is not currently available in v3.7.

At a minimum 3.7 must at least be able to write the completed image to STDOUT after a render - this is not an optimal solution but is better than nothing. Ideally however once entire lines are complete (most likely this will occur in batches due to the block nature of the render subdivision) these lines will be written immediately to STDOUT (after possibly being processed through the appropriate image format routines).

NB currently the image format routines are not invoked until the entire render is completed, so to do this would be a significant modification. However if we limit real-time stream output to “simple” non-compressed formats (e.g. PPM), it would not be overly difficult, and from the point of view of Unix-like operating systems (where the piping feature is most useful), if the data is in PPM format it can easily be transformed into anything else.

Function use in image maps is broken.

The following should result in a white and green checkered unit square, but is transparent.

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

background {rgb <1,1,1>}

light_source {
  <-30, 10, -30>           
  color rgb <1, 1, 1> 
}

plane {y,-1 pigment{checker rgb <1,0,0> rgb <1,0.5,0.5> }}

plane {y,-0.99 
 pigment {
  image_map { 
   function 10,10 { 
    pigment {checker rgb <0,1,0>, rgb <1,1,1> scale 0.1}
   }
   once 
  }
  rotate <90,0,0>
 }
}

The parser is failing to read the .tiff file extension from the input string...

bump_map { tiff "earth03_hf2.tiff" }

Results in file not found, but

bump_map { tiff "earth03_hf2" }

will find the file. It might be that it’s not a three character extension?

Recruit version 3.7 documentation editors from the users community.

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

Reported for freebsd 7.2 (current production version, true for previous version, unknown for 8.0 in beta now)

freebsd does not provide CLOCK_PROCESS_CPUTIME_ID
(even if CLOCK... is posix).

As a consequence, compilation of the unix-source is currently not possible for freebsd target.

Might be a simple selection for Change 4356 ?
(assuming a relevant test in ./configure)
(getrusage() seems available on freebsd, but does it provide the pieces of information needed, I do not know that code good enough to assert that)

It appears that reflective bounces from blobs are
not incrementing the trace level, causing self-
reflecting hall of mirror portions to stall renders.