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changes.txt
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------------------------------------------------------------------------------
POV-Ray Changelog Digest
------------------------------------------------------------------------------
Notes:
- To view a referenced GitHub issue (#xxx), replace the leading # of the
issue ID with the URL https://github.com/POV-Ray/povray/issues/.
For example, to read GitHub issue #58, visit:
https://github.com/POV-Ray/povray/issues/58
- To view a referenced flyspray bug report (FS#xxx), replace the leading
FS# of the flyspray bug ID with the URL http://bugs.povray.org/.
For example, to read FS#270, visit:
http://bugs.povray.org/270
- To view a referenced newsgroup posting (<xxxxx@news.povray.org>), prefix
the message ID with the URL http://news.povray.org/.
The '<' and '>' are optional (if using a shell you may want to omit them).
For example, to read <42765ef3$1@news.povray.org>, visit:
http://news.povray.org/42765ef3$1@news.povray.org
------------------------------------------------------------------------------
Detailed changelog information is available in the file `revision.txt`, which
should be located in the same directory as this file is.
------------------------------------------------------------------------------
Changes between 3.7.1 and 3.7.2-TBD
===================================
This version is still under active development, and not finalized yet.
TBD
Changes between 3.7.1-TBD and 3.7.1
===================================
TBD
Changes between 3.7.1-beta.6 and 3.7.1-beta.7
=============================================
This version is essentially a hotfix for some issues with beta.6.
Fixed or Mitigated Bugs
-----------------------
Miscellaneous:
- Fixed a bug in the new `cubic_spline` sphere sweep bounding code.
- Reverted most of the sphere sweep performance and memory footprint
improvements introduced in the previous beta, as they caused artifacts.
- Fixed some sphere sweep inside texture inconsistencies when using
control points with negative radius.
- Fixed crash of Windows version on machines without AVX support.
- Fixed performance loss of Windows version observed with previous beta.
Changes between 3.7.1-beta.5 and 3.7.1-beta.6
=============================================
The focus of this version has been on various performance improvements, as well
as fixing a few bugs.
Fixed or Mitigated Bugs
-----------------------
Reported via GitHub:
- #260 ("Pavement pattern broken")
- #285 ("Port of FS243 - Sphere sweep behaves wrong when scaled")
- #287 ("Differencing a cubic sphere sweep - artifact problem!")
Reported via FlySpray:
- FS#243 ("Sphere sweep behaves wrong when scaled")
Reported via the Newsgroups:
- <58de4765$1@news.povray.org>
(2017-03-31, povray.advanced-users, "Parse error")
New lathe point sanity check breaks legacy scenes.
- <web.58e39b3f29046ace8464b730@news.povray.org>
(2017-04-04, povray.beta-test, "Re-Render of Editor-Bitmaps failed with Beta 5 ?")
Command-line-style switches with optional parameters (e.g. `-jN`) are not
accepted in INI files if the parameter is omitted (e.g. `-j`).
Miscellaneous:
- Minor updates to the documentation.
- Fixed `cubic_spline` sphere sweep bounding issue (see GitHub issue #147 /
FlySpray report FS#81).
Known Issues
------------
- The (non-bounding related) artifacts described in GitHub issue #147
(formerly FS#81) are back, as the workaround has been identified as the root
cause of even worse issues.
Other Noteworthy
----------------
- Improved anti-aliasing performance.
- Added another AVX-optimized noise generator implementation (this one using
compiler optimization), improving performance on AMD CPUs supporting AVX
but not FMA4.
- The choice of noise generator will now be written to the benchmark log.
- Improved performance of AVX/FMA4-optimized noise generator.
- Improved photons performance in main render phase.
- Improved sphere sweep performance and memory footprint.
Changes between 3.7.1-beta.4 and 3.7.1-beta.5
=============================================
The focus of this version has been on improving the Visual Studio 2015-based
Windows build process, as well as reclaiming some performance lost earlier
during the development of 3.7.1.
Fixed or Mitigated Bugs
-----------------------
Reported via GitHub:
- #226 ("Fix use of stat in unix/configure.ac")
- #257 ("Text in Windows "Open with" file menu")
Miscellaneous:
- Restored performance of user-defined functions (e.g. in isosurfaces) as
well as patterns with special turbulence handling (agate, marble, wood,
spiral1, spiral2).
Other Noteworthy
----------------
- To avoid overly stringent software requirements for building custom
Windows binaries, the VS2015 project files are now set up to generate
non-XP-compatible binaries by default; XP-compatible binaries can still
be generated through a more complex alternative build process.
Changes between 3.7.1-beta.3 and 3.7.1-beta.4
=============================================
The focus of this version has been on fixing bugs, as well getting
working XP-comatible binaries out of Visual Studio 2015.
Fixed or Mitigated Bugs
-----------------------
Reported via GitHub:
- #241 ("Windows Build Instructions Misleading")
Reported via the Newsgroups:
- <58aa4755$1@news.povray.org>
(2017-02-19, povray.beta-test, "beta.3 and ./ and ../ weirdness")
Paths starting with "../../" not handled properly in POV-Ray for Windows
- <58aca5fc@news.povray.org>
(2017-02-22, povray.beta-test, "ior.inc fails in 3.7.1 beta 3")
Parse Error when including "ior.inc".
- <58ab1921$1@news.povray.org>
(2017-02-20, povray.beta-test, "Re: POV-Ray v3.7.1-beta.3 Released")
SSE2 support not properly detected on Windows XP
- <58ae4809$1@news.povray.org>
(2017-02-22, povray.beta-test, "Wrong error message building Windows console version")
Wrong file location specified for `syspovconfig.h`.
Miscellaneous:
- Fixed two demo scenes (`incdemo/sort.pov` and `textures/normals/normmap.pov`).
Other Noteworthy
----------------
- Migrated to Visual Studio 2015 as the designated official build tool.
As of this beta, Visual Studio 2010 is no longer supported.
Changes between 3.7.1-beta.2 and 3.7.1-beta.3
=============================================
The focus of this version has been on fixing bugs, as well as adding
hardware-specific performance optiomizations.
Fixed or Mitigated Bugs
-----------------------
Reported via GitHub:
- #180 ("Port of FS321 - Bounding threshold option handling.")
- #184 ("User defined camera may cause crash during render")
- #212 ("Port of FS301 - Fallback to default image size causes wrong values to be printed in message output")
Reported via FlySpray:
- FS#301 ("Fallback to default image size causes wrong values to be printed in message output")
- FS#321 ("bounding threshold inconsistency")
Reported via the Newsgroups:
- <3c4bb31d$1@news.povray.org>
(2017-01-27, povray.beta-test, "utf8")
Crash when using `charset utf8`.
- <58a5472b$1@news.povray.org>
(2017-02-16, povray.beta-test, "Windows beta.2-QA09T.msvc10.win64 does not accept "./" as a path")
Special directory name `.` not handled properly in POV-Ray for Windows.
Miscellaneous:
- Optional fields in macro parameters or tuple assignments now accept
uninitialized directory entries.
- Some minor fixes to the Windows inbuilt help.
- Increased thread stack size on Linux machines.
Other Noteworthy
----------------
- Added a new sample scene to demonstrate the `aoi` pattern.
- Added Intel optimizations for noise (courtesy of Intel; requires
AVX2/FMA3-capable CPU).
Changes between 3.7.1-beta.1 and 3.7.1-beta.2
=============================================
Changes have been made to allow POV-Ray for Windows v3.7.1 betas to live
happily alongside an existing v3.7.0 installation.
NOTE: This provision is made for the beta phase only. The final release of
POV-Ray for Windows v3.7.1 will be designed to supersede any existing v3.7.0
installation.
Changes between 3.7.0 and 3.7.1-beta.1
======================================
(Note: 3.7.1-beta.1 has never been officially released in binary form.)
The primary focus of this version has been on code refactoring in order to
modularize the underlying architecture, but various new features as well as
bugfixes have also been included.
Work on our own Macintosh graphical user interface has been put on hold, and
it may eventually end up on the scrapyard; our current hope for our Mac users
rests on a 3rd party OS X front-end that we strive to adopt.
New Features
------------
Materials:
- A new finish parameter, `use_alpha`, has been added to suppress highlights
and reflections depending on pigment transparency.
- A new special pigment pattern, `user_defined`, has been added to define the
pigment colour directly in terms of a set of functions.
- A new pattern, `potential`, has been added to define a pattern based on the
potential field of a blob or isosurface object.
- The `map_type` keyword now supports the Angular Map projection for light
probes, popularized by Paul Devebec, as type 7.
- Native support for repetition has been added to the `crackle` pattern to
avoid the discontinuities in the pattern caused by repeat warps.
- The torus syntax has been extended to give more control over the spindle in
a self-intersecting torus.
- Colour and pigment maps now support non-linear interpolation to achieve more
pleasing gradients.
- Fresnel angle-dependent attenuation can now also be applied to highlights as
well as diffuse and emission components for more physical realism.
Geometric Primitives:
- UV mapping support has been added to cones and cylinders.
- A new parameter, `polarity`, has been added to isosurfaces to choose whether
function values above the threshold should indicate the inside or outside.
- A new geometric primitive, `lemon`, has been added.
Scene Description Language, Options and INI settings:
- Support for variable-size arrays has been added.
- A new data container, `dictionary`, has been added to support structured
storage of data.
- Pseudo-dictionaries `local` and `global` have been added, allowing to
specifically access local or global identifiers, respectively.
- The `max_extent()` function as used to determine the size of an image map
in pixels can now also be used on normal maps and density files.
- Macros up to a certain size (currently hard-coded to 65536 characters per
macro) are now cached in memory, improving parsing speed of invocations,
especially when the macro in question is defined in a different file.
- All instances of `gray` in keywords or INI file options can now alternatively
be spelt `grey`. Previously this was only the case inside function
definitions (where it applied only to the `.gray` colour pseudo-component).
- A new inbuilt constant, `tau`, has been added as shorthand for `2*pi`, in
support of the world-wide initiative to obsolete pi in favour of the new,
more intuitive constant.
- The `#declare` and `#local` syntax has been extended to support tuple-style
assignments. The main purpose is to allow macros to return a set of values
rather than just a single one.
- The macro syntax has been extended to allow for optional parameters.
- The creation of a log for the `+C` render abort-continue feature can now be
suppressed using `-CC` to save disk space.
Miscellaneous:
- Support for the ITU-R BT.709 and BT.2020 transfer functions has been added
to POV-Ray's gamma handling portfolio.
- A new function-based user-defined camera type, `user_defined`, has been
added.
- Light sources' distance-based fading can now be set to obey an inverse-power
law at all distances.
- CIE L*a*b* conversion macros have been added to `colors.inc`.
- A new include file, `colors_ral.inc`, has been added, containing predefined
colours according to the RAL Classic standard.
For more details on the above new features, see the documentation.
Changed Behaviour
-----------------
Image Files:
- By default, gamma handling of NetPBM (PPM/PGM) in- and output files now
follows the official NetBPM standard, which mandates gamma-encoding using the
ITU-R BT.709 transfer function. As usual this can be overridden by the
`gamma` input file parameter or `File_Gamma` INI setting, respectively.
- The "Compression" setting now affects more file types: Specifying
"Compression=1" with file type "T" (Targa) will now generate compressed Targa
(same as file type "C"), and explicitly specifying "Compression=0" with file
type "P"(Netpbm PPM/PGM) will generate "plain" (ASCII) Netpbm rather than
"raw" (binary).
- POV-Ray will now try to auto-detect whether an input TIFF file with alpha
channel uses premultiplied or non-premultiplied alpha mode, rather than
blindly presuming premultiplied alpha.
- The interaction of `transmit all` and `filter all` with an image's alpha
channel has been changed to be more intuitive: rather than adding the
image's transparency to the user-specified transparency, the image's opacity
is now effectively multiplied with the user-specified opacity. (requires
`#version 3.71` or later)
- The image file format previously referred to as "IFF" (now more precisely
referred to as "IFF-ILBM") is now associated with the `.lbm` file extension,
in addition to the `.iff` extension.
Miscellaneous:
- On Unix with Simple DirectMedia Layer (SDL) enabled, the "p" key can now be
used to pause and un-pause a render.
- The `version` pseudo-variable will now evaluate to the effective language
version at the time the expression is parsed, _except_ when used in a
`#version` directive, in which case the behaviour remains unchanged.
- The requirement to start each scene with a `#version` statement is now more
strongly enforced for POV-Ray 3.7 scenes, by reporting a parse error if the
scene file does not begin with a `#version` directive but does have a
`#version 3.71` (or later) directive anywhere in the main scene file.
- Using `ambient` with a suspiciously high value in a non-legacy scene will
now prompt a warning, unless `emission` is also specified.
- A long-standing undocumented inconsistency in the treatment of backslashes
in string literals, in which backslashes were essentially _not_ interpreted
as escape characters _if_ the parser expected a filename, has been cleaned
up, so that backslashes are now treated as escape characters in all string
literals. (requires `#version 3.71` or later)
- Boost version 1.38 or later is now required.
Compatibility Improvements
--------------------------
- Compatibility with modern compilers in general has been greatly improved.
Rather than trying to disable the compiler's C++11 support and work around
any resulting fallout, the code has been overhauled to eliminate any
conflicts with the C++11 standard in the first place, and should now compile
fine on any compiler conforming to either C++03, C++03 TR1, or C++11
(notwithstanding platform-specific issues).
- Compatibility of the Unix build process with modern versions of the boost
libraries and automake tools has been improved, avoiding the need for
additional configure parameters or extra build steps on modern Linux
systems.
- Compatibility with Visual Studio 2015 has been improved by streamlining the
Visual Studio 2010 project files and a few pieces of source, packing new
versions of the boost and openEXR libraries, and sorting out the generic
C++11-related issues. As a result, the Visual Studio 2010 projects now build
"out of the box" on Visual Studio 2015.
- Thread stack size has been increased to avoid problems on some platforms.
(requires boost 1.50 or later)
Miscellaneous Improvements
--------------------------
- Array elements no longer have to be of the same type.
- Dithering is now fully supported for Radiance HDR output files as well.
- Trailing whitespace in INI files no longer causes a warning.
- Animation status messages now include the nominal frame number.
- POV-Ray for Windows now reports file names and line numbers of warnings.
- Radiosity can now honor the `brilliance` setting of a surface.
- Colour maps, pigment maps and the like are no longer limited to 256 entries.
- The number of components per blob is no longer artificially limited.
Fixed or Mitigated Bugs
-----------------------
(Note: Bugs first introduced in a POV-Ray 3.7.1-alpha version may or may not be
included in these lists.)
Reported via GitHub:
- #5 ("prebuild.sh chmod errors: No such file or directory")
- #6 ("Makefile.in does not get created")
- #7 ("stat: illegal option -- c")
- #8 ("reference to 'shared_ptr' is ambiguous")
- #9 ("lseek64 is not present on all platforms")
- #10 ("Possibly missng sys/types.h include?")
- #21 ("configure attempts to link boost_system library even with boost 1.49 or earlier")
- #24 ("Compile on debian jessie")
- #29 ("master branch, failing to compile on linux on 28th June 2014")
- #30 ("gcc-compiled povray of current master (2014-07-02) produces wrong output for benchmark")
- #31 ("unknown type name 'shared_ptr'")
- #32 ("need to include <sys/wait.h>")
- #36 ("Bad naming in Insert Menu / 10 - Ready made scenes")
- #37 ("Missing txt file in /E6 - Patterns 2/03 - pavement_sides_3")
- #38 ("Bad naming in /A0 - Include files/")
- #43 ("cannot build latest trunk")
- #44 ("master branch has problem to compile with boost 1.55+")
- #49 ("Latest version from Git won't build with MS Visual Studio 2015")
- #50 ("Make error in Ubuntu 14.04")
- #53 ("Standard include files may mess up the language version")
- #60 ("Not the right behaviour for Bezier splines")
- #63 ("Mar 05, 2016 commit appears to have broken AA. Ubuntu 14.04.")
- #98 ("String variables not always accepted.")
- #110 ("POV-Ray does not honor official PGM and PPM specifications with respect to gamma.")
- #111 ("Port of FS307 - netpbm, ppm, read bug where first data byte CR char.")
- #114 ("Port of FS298 - The warning for isosurface does not appears as often as with 3.6.1")
- #124 ("Compiling on os Sierra - Compiler Error - typedef redefinition with different types ('int' vs 'enum')")
- #128 ("Port of FS331 - Intersection causes quadric to disappear")
- #149 (""prefix" keyword conflict in distribution scene files")
- #153 ("vector list trailing comma error sor lathe sphere_sweep")
- #160 ("Port of FS259 - Stack Overflow with the write-directive with missing closing bracket.")
- #161 ("Missing parenthesis on write directive causes crash.")
- #175 ("Coredump due recent 3.7.1 parser updates.")
Reported via FlySpray:
- FS#254 ("Mesh_camera type 0 output seems to be incorrect")
- FS#259 ("Stack Overflow with the write-directive with missing closing bracket")
- FS#261 ("mesh_camera distribution type 3 output image is placed 0.5 pixels to wrong")
- FS#268 (""naked" pigment statement does not properly override previous pigment")
- FS#270 ("render abort-continue (+C) sometimes skips blocks")
- FS#298 ("the warning for isosurface does not appears as often as with 3.6.1")
- FS#307 ("netpbm, ppm, read bug where first data byte CR char")
- FS#313 ("radiosity.cpp pov::RadiosityFunction::BeforeTile assertion failed") [preliminary fix]
- FS#314 ("reading Gif is bugged in 3.7")
- FS#315 ("inverse keyword does not work properly with quadrics")
- FS#316 ("inverse keyword does not work properly with fractals")
- FS#317 ("problem with +D option at specific output file dimensions")
- FS#318 ("method 3 (default) scattering media is too bright & causes artifacts when nested")
- FS#331 ("Intersection causes quadric to disappear")
- FS#336 ("#fopen w/o OPEN_TYPE crash povray (segfault)")
Reported via the Newsgroups:
- <3c4bb31d$1@news.povray.org>
(2002-01-21, povray.beta-test, "<1, 0, 0> + 1*t")
Inconsistency in automatic scalar-to-vector promotion.
- <web.52e768e03066f6369a9ee9f50@news.povray.org>
(2014-01-28, povray.bugreports, "Help file")
Lots of broken indices in the POV-Ray for Windows inbuilt documentation.
- <53ea2dae@news.povray.org>
(2014-08-12, povray.binaries.images, "unexplained")
Precision issue led to `<1,1,1>.grey` not evaluating to 1 on sone systems.
- <web.551e92b74514bfb213709ea20@news.povray.org>
(2015-04-03, povray.binaries.images, "An artifact when rendering torus(negative major_r)")
Spindle torus shading issues resulting from bogus surface normal
computations for points on the spindle.
- <web.55aac094763dc3187a3e03fe0@news.povray.org>
(2015-07-18, povray.binaries.scene-files, "Where my background? Help me, please!")
Bug in meshmaker.inc that would scramble the SDL language version to use for
a scene.
- <56cc274d$1@news.povray.org>
(2016-02-23, povray.beta-test, "double free or corruption")
Bug in the copying of multi-textured blobs.
- <56cdaee5@news.povray.org>
(2016-02-24, povray.beta-test.binaries, "optics.pov 3.7.0 vs 3.7.1")
Bug in media photons.
- <56d16f44$1@news.povray.org>
(2016-02-27, povray.beta-test, "splinefollow")
Bug in splines.
- <56d15fb0$1@news.povray.org>
(2016-02-27, povray.beta-test.binaries, "reflection.ini")
Bug in `animations/reflection` sample scene INI file.
- <web.56d342e38bb35b79fd6b6fe10@news.povray.org>
(2016-02-28, povray.bugreports, "#write")
Under certain circumstances, a missing closing parenthesis in the condition
of an `#if`, `#while` or similar statement would lead to a crash instead of
a parse error.
- <56d48747$1@news.povray.org>
(2016-02-29, povray.beta-test, "cliche.pov")
Missing input image filename extension in `advanced/cliche`.
- <56d5d924$1@news.povray.org>
(2016-03-01, povray.beta-test, "whiltile.pov")
Enabling a commented-out statement in the `advanced/whiltile.pov` scene
would result in the `#version` directive not being the first statement.
- <5762b6bf$1@news.povray.org>
(2016-06-16, povray.bugreports, "Function bug with POV-Ray 3.7.1-alpha.8638272 Ubuntu 14.04")
Bug in isosurfaces with non-zero threshold.
- <web.57ad048990f06e6231fe18be0@news.povray.org>
(2016-08-11, povray.general, "Caustics not working with transparent background")
Bug causing radiosity to ignore refracted `no_image` objects.
- <web.57b4b6c879df8923b488d9aa0@news.povray.org>
(2016-08-17, povray.binaries.scene-files, "Wrong normal direction on triangle{ }s")
Bug in flat trianges that could cause interior_texture to show on the wrong side.
- <57e2cfe4$1@news.povray.org>
(2016-09-21, povray.general, "POV-Ray 3.7 doesn't render anymore")
Bug causing `+a.3` command-line option to be rejected.
- <web.57ede719b90612ffb1933f770@news.povray.org>
(2016-09-30, povray.documentation.inbuilt, "how are dist. doc mistakes handled?")
Missing closing parenthesis in HF_Sphere macro snippet.
- <web.57fbb6f31fca49e37a3e03fe0@news.povray.org>
(2016-10-10, povray.binaries.images, "PNG image as Povray render result: bug or not?")
Unnecessary creation of PNG oFFs chunk, causing GIMP to pop up a confusing dialog.
- <58090935$1@news.povray.org>
(2016-10-20, povray.programming, "Re: solving polynomials")
Misplaced `break` in polynomial solving code.
Reported via Windows Crash Reports:
- crash report #???, dump file #988
Under certain circumstances, a missing closing parenthesis in the condition
of an `#if`, `#while` or similar statement would lead to a crash instead of
a parse error.
Miscellaneous:
- Fixed media cutting out or fading to black above the horizon (sample method
3 only; other methods remain problematic).
- Animation status messages now consistently display a running frame count and
the total number of frames actually to be rendered, properly taking into
account the Frame_Step setting.
- Fixed mesh_camera-related flaws in the parser.
- Fixed a family of bugs that could cause problems when using focal blur with
some camera types if the camera is very close to the surface of a media
container.
- Fixed bug that could cause strange parse errors when including a file from
within macro.
- Added a sanity check to the maximum interations parameter in fractals.
- Fixed a hard crash when sum() was called with only three parameters.
- Fixed bezier patch not honouring clipped_by statement.
- Fixed crash when using turbulence parameters (lambda, omega etc.) without
specifying a pattern type.
- Fixed bug in parser causing an error when no file type is specified and the
file name is specified using a variable.
- Fixed unwarranted "Rainbow's up and direction vector are co-linear"
error message.
- Fixed another bug in mesh_camera with distribution 3.
- Fixed wrong rotation in `Round_Pyramid_N_in` in shapes3.inc.
- Fixed some more bogosities related to media sampling method 3.
- Minor robustness improvement in IFF image reading code.
- Iridescence did not properly honor full area diffuse lighting.
- Subsurface scattering did not play nice with non-default brilliance values.
Other Noteworthy
----------------
- The Visual Studio 2010 project for a console-only Windows version has been
revived.
---------------------------------
Changes between 3.7.RC7 and 3.7.0
---------------------------------
- This is the version 3.7.0 release, and mostly things are in order,
however a few minor bugs have been addressed. Continued efforts towards
addressing static code analysis issue's resulted in the inclusion of
several high profile fixes into this release. The scene files included
with the distribution have been reviewed as well. This includes
version branding, deleting some older irrelevent files, and a few new
additions. The windows version insert menu files were also updated and
expanded. Additionally the insert menu templates are now also available
in HTML for convenient use with 'cut and paste'. The distribution package
has been branded with a different (AGPL3) license.
- For technical reasons the Macintosh OS graphical user interface was not
ready at the time of this release. However, the source code will be made
available to users so they can build their own binary if the wish.
Windows Related:
----------------
- moved codemax source and removed dependence on codemax header files
- relocated cmedit source files
- updated help file
- updated keywords used for context-sensitive help
- minor setup tweak
- fix unquoted path in shell extension registration and added registry key
backups for uninstall
- updated source code readme.html
- updated about box image
- some tweaks related to console project and remove codemax project
- removed vs8 and vs9 solutions
- fixed issue with editor selection due to off-by-one line numbers.
make use of SetCaretPos consistent
- update about bitmap to remove explicit URL's and add support to about
window code to make some areas act as hyperlinks
- remove old 4BPP toolbar icons as 16-color mode support isn't really
relevant anymore
- rename a few files in bitmaps directory whose names were upper-case
Static Code Analysis:
---------------------
- CID 967264: Non-array delete for scalars
- CID 967298: Resource Leak
- CID 967299: Resource Leak
- CID 967300: Resource Leak
- CID 967301: Resource Leak
- CID 967302: Resource Leak
- CID 967303: Resource Leak
- CID 967363: Uninitialized scalar variable
- CID 967364: Uninitialized scalar variable
- CID 967365: Uninitialized pointer read
- Several fixes were rolled back, pending further investigation. They have
been tabled for inclusion in a future release.
Fixed or mitigated the following bug reports:
---------------------------------------------
- http://bugs.povray.org/task/262 linux sources being compiled twice
- http://bugs.povray.org/task/271 filter affects object's own brightness
- http://bugs.povray.org/task/274 light source fading and subsurface
- http://bugs.povray.org/task/294 splines are not thread safe
- http://bugs.povray.org/task/304 for loop fails to perform last iteration
- http://bugs.povray.org/task/308 heightfield computation has a regression
Other Noteworthy:
-----------------
- assigned licences to individual source files in the distribution tree
- minor but effective changes to octree code for improved performance
in radiosity-heavy scenes
- minor fix to radiosity statistics (octree samples/node)
- cleaned up our jpeg code to use the proper constants for the jpeglib's
custom "boolean" type (we erroneously passed standard C++ bool constants
instead, which could lead to compile errors on some systems)
- suppressed duplicate version message and flipped version to 3.7.0
- moved some code (previously a temp fix) to the frontend where it belongs
- added new include files: shapes3.inc, meshmaker.inc and makegrass.inc
- a couple of (unix specific) developer and user contributed fixes
- remove outdated support header files for borland, mingw and watcom
compilers
- add warranty disclaimer to console output
- updates to unix man page
-----------------------------------
Changes between 3.7.RC6 and 3.7.RC7
-----------------------------------
- This is the FINAL release candidate. It features continued refinements to
the Windows user interface as well as the setup/install process, fixes
found by static code analysis, and various other bug fixes.
Windows Installer:
------------------
- POVWIN now assigns .pov file association to when installing.
- Improved cloning of v3.6 INI and provide better defaults.
- Various fixes/improvements to the way Windows INSTALL works and how the
documents path is auto-detected if not specified.
- Additional setup tweaks.
Windows Crash Reports:
----------------------
- Fix to handle filenames with a comma in them: crash report #419.
Static Code Analysis:
---------------------
- CID 967356: Uninitialized scalar variable
uninit_use: Using uninitialized value "r". See also FS#267
- CID 967224: Truncated stdio return value
char_io: Assigning the return value of "pov_base::ITextStream::getchar()"
to char "chr" truncated its value
- CID 967248: Copy-paste error
copy_paste_error: "t1" in "t1 < 1e+07." looks like a copy-paste error.
Should it says "t2" instead
- CID 967249 Resource leak in object
1. alloc_new: Allocating memory by calling
"new double[camera.Blur_Samples]"
2. var_assign: Assigning: "this->Sample_Threshold" =
"new double[camera.Blur_Samples]"
3. ctor_dtor_leak: The constructor allocates field "Sample_Threshold" of
"pov::TracePixel::FocalBlurData" but the destructor and whatever
functions it calls do not free it
- CID 967420: Non-virtual destructor
Nonvirtual_dtor: Class pov::RadiosityTask::RadiosityBlockInfo has a
destructor and a pointer to it is upcast to class pov::ViewData::BlockInfo
which doesn't have a virtual destructor
Fixed or mitigated the following bug reports:
---------------------------------------------
- http://bugs.povray.org/task/270 render abort-continue (+C) skips blocks
- http://bugs.povray.org/task/267 bug in "sor" primitive causes artifacts
- http://bugs.povray.org/task/266 improper quoted strings handling
- http://bugs.povray.org/task/265 supress clang compilation warnings
- http://bugs.povray.org/task/257 Input file resuming animation render
- http://bugs.povray.org/task/249 UTF-8 files with BOM read error
- http://bugs.povray.org/task/247 set no_radiosity in Screen_Object()
- http://bugs.povray.org/task/238 error during #read leaves file open
- http://bugs.povray.org/task/234 allows GD flag to work correctly
- http://bugs.povray.org/task/233 picture index out of range
- http://bugs.povray.org/task/232 illegal map_type usage reporting
- http://bugs.povray.org/task/224 syntax highlighting/auto-comp (windows)
- http://bugs.povray.org/task/153 determine I/O permission for output file
- http://bugs.povray.org/task/150 improves POVWIN shell "open with" option
- http://bugs.povray.org/task/135 editor tab right-click menu additions
- http://bugs.povray.org/task/109 frame-by-frame debug data handling
Other Noteworthy:
-----------------
- Several updates to #5678 (FS#233): workaround for fmod() apparently not
conforming to C++ standard on some linux machines.
- Fixed radiosity issues with "diffuse albedo" syntax.
- Fix for benchmark thread vs CPU count (windows version).
- Fix to get rid of a shape/poly.cpp compile warning on Linux variants
- Added (re-enabled) crand support.
- Couple of fixes for an issue caused by a "boost" change.
- Build-in benchmark can now render without external distribution files.
- Fixed a bug in file-backed image container.
- Bump benchmark version to 2.01
- Various windows user interface refinements
- Added new option to prevent the system (windows) from sleeping whilst a
render is in progress. by default this is selected.
- Fix a long-standing bug where pressing 'pause' during a parse or render
could sometimes put the frontend/backend sync into an unrecoverable state
- Updated copyright information for some 3rd party libraries.
- A few signedness fixes in image handling code.
- Continued code cleanup including getting rid of unused code & parameters.
- Updated VS project libraries: zlib, libpng, libjpeg
- Added Append_File +GP option, which allows users to append streamed
console to existing console stream output file(s).
-----------------------------------
Changes between 3.7.RC5 and 3.7.RC6
-----------------------------------
- This release candidate features continued refinements to the Windows
installer, VS10 code (and other) cleanup and a few bug fixes.
Windows Installer:
------------------
- Several updates and improvements that address user feedback.
- Fixed an issue with the XP64 installer.
Windows Source Build:
---------------------
- Fixed ALL tiff project targets to build tiff config headers.
- Fixed Debug/x64 target to build OpenEXR to Float.
Windows Crash Reports:
----------------------
- Fix for divide-by-zero in stats code when radiosity query count is 0
crash report #384, dump file #342
- Fix merge issue from change #5387 which re-introduced a bug fixed earlier
crash report #385, dump file #343
- Potential fixes for a number of crash reports related to the editor
(particularly drag&drop actions)
- Fix for numeric overflow issues in image handling; eg: VERY large images
Fixed or mitigated the following reports:
-----------------------------------------
http://bugs.povray.org/task/241 FS#241 (Photons not working correctly)
Other Noteworthy
----------------
- Insert menu (windows version) update from Friedrich Lohmller.
- Fixed problems with colored transparent backgrounds.
- Fixed the Windows help file searchable index.
- Some general code housekeeping (comments and whitespace).
- A minor fix for radiosity adc_bailout handling.
- Corrected a formatting issue with radiosity statistics reporting.
-----------------------------------
Changes between 3.7.RC4 and 3.7.RC5
-----------------------------------
- This release candidate primarily addresses the crash dump report #357
triggered by non-closed SSLT-enabled mesh inside CSG. This fix also
addressed several issue's with another outstanding bug report.
- The Windows installer and crash dump submitter have been improved.
- Changes to the post processing of the Windows help file corrected the
broken searchable index.
- A couple of bug reports have been addressed.
Fixed or mitigated the following reports:
-----------------------------------------
http://bugs.povray.org/task/12 FS#12 (facets pattern in normal map)
http://bugs.povray.org/task/196 FS#196 (More SSLT Caveats)
http://bugs.povray.org/task/46 FS#239 (improper uid/gid handling)
-----------------------------------
Changes between 3.7.RC3 and 3.7.RC4
-----------------------------------
- This release candidate primarily improves upon the SSLT code, but there
are also some other noteworthy enhancements and/or additions.
They are listed below:
- a keyword addition "albedo" it's a new finish attribute
- the iridescence feature has been overhauled
- support was added for tuning brightness of image-mapped sky spheres
- three new tiling patterns were added
- Building from the windows source distribution has also been simplified
- Introduced a new windows installer
- Added AMD optimizations for noise
- A Windows Editor crash fix
- Over two dozen bug reports have addressed
- A few scene file fixes and/or additions
- Updated the Windows help file
Subsurface Light Transport
--------------------------
bugfixes and improvements to SSLT code;
syntax for material definition has changed as follows:
material {
texture {
pigment { PIGMENT }
finish { ...
subsurface { translucency COLOR }
}
}
interior { ior FLOAT }
}
The pigment determines the SSLT material's overall appearance when applied
to an object with sufficiently large structures. The translucency color
(which can alternatively be a float) determines the strength of the
subsurface light transport effect (note that the values may be >1.0; also
note that the effect doesn't scale with the object; instead, to adjust
materials to the dimensions of your scene, use the global mm_per_unit
setting). The material's index of refraction also affects the appearance of
the material, and is mandatory for SSLT materials.
SSLT is now enabled only when a global_settings subsurface block is present;
to enable SSLT but use the default settings, specify an empty block,
i.e. "subsurface{}"
Due to the experimental status of SSLT, there are currently some caveats:
- Incorrect use may result in hard crashes instead of parse warnings.
- Pigments having any zero color components currently don't play nice with
SSLT; for example instead of "rgb 1" you should use something like
"rgb <1,0.05,0.05>".
- A Diffuse finish attribute of zero can cause the program to have an
assertion failure.
- changes to improve robustness regarding low translucency and/or high
mm_per_unit settings for objects in general and blobs in particular
added support for CSG (caveat: unions of overlapping components will cause
unexpected results; use merge instead)
Further Subsurface scattering improvements include:
- added syntax to global subsurface block:
global_settings { subsurface { radiosity BOOL } }
specifies whether subsurface light transport effects should be applied to
incoming radiosity-based diffuse illumination; if this setting is
off (default), subsurface light transport effects will only be applied to
direct illumination from classic light sources. Setting this to on will
improve realism especially for materials with high translucency, but at a
significant cost in rendering time.
- added syntax to global radiosity block:
global_settings { radiosity { subsurface BOOL } }
specifies whether radiosity sampling should honor subsurface light transport;
if this setting is off (default), radiosity-based diffuse illumination is
computed as if the surrounding objects had subsurface light transport turned
off. Setting this to on may improve realism especially in the presence of
materials with high translucency, but at some cost in rendering time.
- Subsurface scattering is disabled in all quality levels except +Q9
or higher.
- More thorough fix to complement change #5425.
- Minor changes to reduce intensity of patterned noise artifacts on
subsurface textures.
Other Noteworthy
----------------
- Added new "albedo" keyword, that can be used right after "diffuse",
"phong" or "specular" to specify that the parameter is to be taken as the
total diffuse/specular reflectance, rather than peak reflectance. E.g.:
diffuse albedo 0.5 brilliance 2
specular albedo 0.05 roughness 0.001
phong albedo 0.02 phong_size 1000
Note that for brilliance = 1, the "albedo" keyword has no effect on the
diffuse parameter.
- A major overhaul of iridescence feature, which used to be seriously flawed;
syntax remains unchanged, except that both thickness and amount are now
supposed to be specified in microns. The new irid_wavelength default value
is now <0.70, 0.52, 0.48>, so iridescence effects will vary from previous
versions.
- Added support for tuning brightness of image-mapped sky spheres:
Added "emission COLOUR" parameter to sky_sphere, defaulting to [rgb] 1.
Higher values increase the sky sphere brightness accordingly, while lower
values decrease it. While primarily intended for easy tuning of light probe
skies, the parameter also works with procedural sky pigments.
- Added three new "tiling" patterns:
- pattern 25 type (N=6) produces a Penrose P1 tile
- pattern 26 type (N=2) produces a Penrose P2 tile
- pattern 27 type (N=2) produces a Penrose P3 tile
- Added AMD optimizations for noise. Note that these are currently disabled.
Windows Source Build:
---------------------