- move some larger vars into a nested scope.
- replace memset with zero initializer.
- rempace VECCOPY macros with copy_v3v3
- change function args to give the float array length.
Volume pre-caching altered shared data simultaneously in multiple threads, causing invalid scattering results when "Asymmetry" value was used. The view vector is now passed as a function argument.
- use 'const float *' and array size in some function declarations.
- replace macros for BLI_math functions INPF, VECCOPY, VECADD etc.
- remove unused VertRen.clip struct member.
- remove static squared_dist() from 2 files, replace with BLI_math function len_squared_v3v3().
- use vertex arrays for drawing clipping background in the 3D viewport.
* Added "Initial Color" setting for surfaces. You can for example set color from UV mapped texture or from vertex colors.
* Added clamping option for "wave" brushes.
* Merged smudge and drip adjacency search code. This fixes some issues with drip effect and makes code easier to maintain.
* Some adjustments to the bounding box generation code.
* OpenMP is now completely disabled if no compile flag is set.
* Wetness values are now properly clamped on vertex surfaces. No more black dots on >1.0 wetness.
* Textured brushes now use same function calls as internal renderer, instead of modified duplicates.
* Moved operator code to editors/physics/.
* Re-enabled some particle brush optimizations.
* Fixed sometimes incorrect volume brush influence.
* Fixed possible crash when using a brush that uses "Voxel Data" texture simultaneously with material preview or render.
* Fixed texture mapping issues for "Object Center" brush.
* Fixed possible crash/corruption when duplicating brush object that uses color ramps.
* Other tweaking and code cleanup.
* Surface bake data is no longer recalculated every frame, but only when surface mesh has moved/transformed. Results in multiple times better performance on high resolution surfaces when using sub-steps or surface is still.
* Heavily optimized particle brushes when random particle size enabled. Up to 10x speedup with large radius particles.
* Added an additional "grid" space partitioning structure for surfaces.
* Added bounding box checks for brushes.
* Smaller overall optimization.
* Further OpenMP parallelization.
* Added physics tab link to modifier panel.
* Fix: "Point Density" texture cache wasn't properly updated. Brushes can now use Point Density textures as well.
* Fix: Paint dissolve resulted in black color.
* Fix: KD-tree checkups weren't completely thread safe. Fixes possible crash with OpenMP enabled particle brushes.
* Fix: When brush was set to use a specific material, it was saved incorrectly and resulted in potential crashes on next load.
Note for VS2008 plus CMake users:
I had to remove OpenEXR debug libs from the "blender" project properties >
Linker > Additional Dependencies. Otherwise I got a number of linker errors
concerning duplicated symbols between libcmt.lib and libcmtd.lib.
Conflicts resolved:
source/blender/render/intern/source/pipeline.c
Also fixed an inconsistent conflict resolution in the last commit with
regard to release/scripts/startup/bl_ui/properties_render.py. This
problem resulted in empty menus in the GUI.
Made some improvements to the point density texture. Added support
for tweaking the falloff with a custom curve. Also coded new
falloff types based on the age or velocity of particles.
Also added a test break check to the volumetric shade cache code,
to avoid nasty hangups from the preview render (on render, exit,
etc).
Conflicts resolved:
source/blender/makesrna/RNA_enum_types.h
According to the changes in revision 35667, the Freestyle-related code
in release/scripts/ui/ was moved to release/scripts/startup/bl_ui/.
When rendering, during processing scene data, drawing in 3d window
is now locked. Can get extended to more areas in UI easily.
At least this solves all crashes with conflicting memory access in
render && 3d drawing. Deleting objects via operators or delete
modifiers isn't locked yet.
Also fixed: crash on quitting a renderwindow when it was rendering.
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.
oldbump -> original
newbump -> compatible
*new* -> default (3tap)
*new* -> best quality (5tap)
the latter two have an option to apply bumpmapping in
viewspace - much like displacement mapping
objectspace - default (scales with the object)
texturespace - much like normal mapping (scales)
A note for branch users: CMake 2.8 on 64-bit Windows Vista raised
an error in line 948 of soc-2008-mxcurioni/CMakeLists.txt due to
an invalid argument for the blender_include_dirs macro:
blender_include_dirs(${OPENGL_INCLUDE_DIR})
The command above should be:
blender_include_dirs("${OPENGL_INCLUDE_DIR}")
Hair render: using strand "Blender Unit" size didn't correctly
clip for larger/wider strands. Now code clips strands based
on the maximum width.
Also found bad code for using clipping flags, which was mixed up,
and probably caused hair strands to be missing in cases.
* Particle age can now be used as the texture x-coordinate, and location in a particle trail as the y-coordinate.
* This finally enables particles in 2.5 to change their color (or any other texturable material property) by their age.
* In 2.4x this was accomplished with the "100 frames == particle age", but this was both non-intuitive and slow as the animation system had to be recalculated for every particle.
* Currently these are 2d coordinates (age/lifetime == x-coordinate, trail particle index/number of trail particles == y-coordinate), but other particle properties or possibly even a user definable property can be added as coordinates in the future.
* On the code side this uses the same coordinate definition number (for halo materials) as strand coordinates (for surface materials). This is also nice as they intuitively mean nearly the same thing, i.e. along strand or during particle life.
large render sizes could cause an the threaded tile processor to hang because winx * winy wrapped into a negative value.
also convert winx/winy to floats before multiplying for vector passs.
