These should not have any effect on render results, except in some cases with
you have overlapping faces, where the noise seems to be slightly reduced.
There are some performance improvements, for simple scenes I wouldn't expect
more than 5-10% to be cut off the render time, for sintel scenes we got about
50% on average, that's with millions of polygons on intel quad cores. This
because memory access / cache misses were the main bottleneck for those scenes,
and the optimizations improve that.
Interal changes:
* Remove RE_raytrace.h, raytracer is now only used by render engine again.
* Split non-public parts rayobject.h into rayobject_internal.h, hopefully
makes it clearer how the API is used.
* Added rayintersection.h to contain some of the stuff from RE_raytrace.h
* Change Isect.vec/labda to Isect.dir/dist, previously vec was sometimes
normalized and sometimes not, confusing... now dir is always normalized
and dist contains the distance.
* Change VECCOPY and similar to BLI_math functions.
* Force inlining of auxiliary functions for ray-triangle/quad intersection,
helps a few percentages.
* Reorganize svbvh code so all the traversal functions are in one file
* Don't do test for root so that push_childs can be inlined
* Make shadow a template parameter so it doesn't need to be runtime checked
* Optimization in raytree building, was computing bounding boxes more often
than necessary.
* Leave out logf() factor in SAH, makes tree build quicker with no
noticeable influence on raytracing on performance?
* Set max childs to 4, simplifies traversal code a bit, but also seems
to help slightly in general.
* Store child pointers and child bb just as fixed arrays of size 4 in nodes,
nearly all nodes have this many children, so overall it actually reduces
memory usage a bit and avoids a pointer indirection.
- ignore MSVC warnings when FREE_WINDOWS is defined to quiet warnings.
- the CMake flags were not being set correctly making blender have weirdo colors (no -funsigned-char).
* add support for LCMS (disabled by default, set WITH_LCMS to true to enable it)
* fixed typo that prevented TIFF support to be properly enabled
* enable ray optimization by default (scons and cmake already did this)
* fixed building with libsndfile on darwin (disabled by default)
* quicktime: use audaspace headers from $(NAN_AUDASPACE)/include instead of intern
* gameengine: add -DWITH_FFMPEG to compiler flags when building with ffmpeg support
* Division by zero fix for TNT SVD code.
* Sound fix, in case ffmpeg decode fails, don't use the samples.
* Fix for incorrect bounds of transformed objects in new raytracing code.
* Gave memory arena's a name used for allocations for easier memory
usage debugging.
* Dupligroup no_draw option was using layers but not restrict view/render
setting. (not a bugfix exactly but would do display list context switching
while drawing for no reason).
* Fix objects instanced on hair particles not giving consistent results
when the object is transformed.
* New math functions: madd_v4_v4fl, len_squared_v3v3, interp_v4_v4v4v4,
mul_v4_m4v4, SH and form factor functions, box_minmax_bounds_m4.
* mul_m4_m4m4 and mul_m3_m3m3 now accept the same pointers for multiple
arguments.
* endjob callback for WM jobs system.
* Geometry node uv/color layer now has search list/autocomplete.
* Various small buildsystem tweaks, not strictly needed yet in trunk.
* Some cases of struct name being set where it shouldnt have been.
* Spelling: wich --> which
* Copy and initialize uv modifier scale, remove unneeded enum.
* Ability to pin any object into the context.
* Update uv window while transforming (useful when used with UVProject modifier)
* Patch by Wahooney, so new template's are internal text and dont get saved over
by mistake.
* Fix for https://bugzilla.redhat.com/show_bug.cgi?id=572186
Bug 572186 - [abrt] crash in blender-2.49b-5.fc12: Process
/usr/bin/blender.bin was killed by signal 6 (SIGABRT). Original fix submitted
by Jochen Schmitt.
* [#21816] bpy.data.add_image has stopped working on Windows. moved to
bpy.data.images.load(), missed this call.
(commits 27726,27825,27828,27831,27832,27833,27834,27836,27837,27838,27839,27858 by Campbell from render25 branch)
mask, also avoid making vertex groups if they will not be filled.
* Add back image pin option in image editor header.
* Fix deep shadow not respecting Cast Buffer Shadows option.
* Tangent space normal map baking should work again now.
* Fix a problem with particle duplis, due to own bugfix for #20350,
the problem for that seems to be in dupliverts, not particles.
* Fix external multires data link getting lost on exiting editmode.
(commits 27776,27777,27830,27840,27841,27862 by Brecht from render25 branch)
Until now only SSE switches were defined, but to really enjoy the SIMD structures, the
__SSE__ define needs to be given. This can now be done with setting in your user-config.py
WITH_BF_RAYOPTIMIZATION=True
(or WITH_BF_RAYOPTIMIZATION=1 on command-line)
* Convert all code to use new functions.
* Branch maintainers may want to skip this commit, and run this
conversion script instead, if they use a lot of math functions
in new code:
http://www.pasteall.org/9052/python
Error log:
/usr/include/gcc/darwin/3.3/c++/cmath: In function `float std::ceil(float)':
/usr/include/gcc/darwin/3.3/c++/cmath:175: error: parse error before `(' token
/usr/include/gcc/darwin/3.3/c++/cmath: In function `float std::floor(float)':
/usr/include/gcc/darwin/3.3/c++/cmath:249: error: parse error before `(' token
/usr/include/gcc/darwin/3.3/c++/cmath: In function `float std::fmod(float,
float)':
/usr/include/gcc/darwin/3.3/c++/cmath:267: error: parse error before `(' token
The makefile is a copy of the source one, not tuned, just to unbreak build.
This raises some questions: why separate dirs? why each build system takes
a different approach (different libs vs all source files into one)?
*Disabled ray counter (can be enabled on render/extern/include/RE_raytrace.h by commenting out the define)
*marked bvh_node_merge() as static inline (hopping it now compiles on gcc and mingw)
* Made bvh_node_merge() in svbvh.h static (fix suggested by jaguarandi). This makes mingw link again.
* Also, patched my previous fix for ... = {}; since mingw didn't like the other fix (which was for msvc).
* Replaced ... = {}; with ... = {0};
* Solved problem with logf(), where msvc couldn't figure out which version of log() to call (solved by casting the int argument to a float, but could also have been to double)...
* The cflags and cxxflags for scons when compiling the rendering module were only valid for gcc compiles. These will still need to get added for msvc sometime, but for now, there are no more warnings about unknown options...
* mingw almost compiles again cleanly, except for a linking error when linking blender http://www.pasteall.org/8297
* win64 should compile again too to a similar degree?
* silenced warnings about no newlines...
#define RE_RAYCOUNTER (/source/blender/render/extern/include/RE_raytrace.h)
*Some other small organization on code
(will be disable as this only matters for testing and developping)
(this is a generalization of some of the experimental stuff i tried during SoC,
but only had time to improve a few days ago)
- it should yield slightly better results
- the cost model can somehow be tweaked to optimize for diferent trees.
*cleaned up some code
*added counters for number of SIMD BB tests
*added GPL license block on missing files
