Initially problem was caused by updated version of mingw-runtime which
changed behavior of snprintf and vsnprintf so %lf isn't anymore valid
for doubles.
According to manpages, %f is a correct format for snprintf for doubles.
discussed with Janne, Ton, Nathan and we agreed this kind of change at least needs discussion with module owners.
Its also too close to release to be making these kinds of changes.
commands used:
# reverse merge
svn merge -r36073:36072 .
# for some reason this gave a lot of property changes
svn revert `svn st | grep "^ M" | awk '{print $2}'`
# reverse merging didn't work here, removing while dir.
svn rm extern/eltopo/
# manually fixed conflict in
# ./source/blenderplayer/CMakeLists.txt
#
# also manually removed 2 lines from
# ./CMakeLists.txt
Plugged the eltopo library into the cloth solver.
I was playing with it earlier, and it's so easy to
use I decided to quickly put it in (trunk's) cloth.
See http://www.cs.ubc.ca/labs/imager/tr/2009/eltopo/eltopo.html
. The authors are on the bleeding edge of continuous collision
detection (one of them did ILM's cloth sim).
I
don't really have to time to plug it into softbody, particles,
bullet, fluid, etc, but doing so would be pretty straightforward.
I'll leave that up to someone else.
To use, turn on USE_ELTOPO (in cmake) or WITH_BF_ELTOPO in scons.
- use NULL rather then 0 where possible (makes code & function calls more readable IMHO).
- set static variables and functions (exposed some unused vars/funcs).
- use func(void) rather then func() for definitions.
- removed deprecated bitmap arg from IMB_allocImBuf (plugins will need updating).
- mostly tagged UNUSED() since some of these functions look like they may need to have the arguments used later.
The most useful effect of this is that set scenes can take the simplify settings from the current scene (render team doesnt have to worry about animators simplify settings).
details...
- updating on frame change now passes the parent scene to object update function. (this was alredy happening for updating tagged objects)
- set scenes objects update first so scenes can depend on set objects however this only happened at once level, now set scenes are updated recursively, so deepest level is updated first.
- collision objects used to only look through the current scene, now set objects are included.
* Disable openmp for dot product, this gives different results each
time due to non-commutative floating point add.
* Disable openmp with few vertices, the extra thread overhead only
slows things down then.
* Replace the hack that would divide stepsPerFrame and then set it
back, now it simply uses the timescale in the collision function.
This was incorrect because stepsPerFrame is an int, but we don't
want this to be rounded.
* Extra out of bounds check for hair velocity smoothing grid.
* 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
* Unified scene wide gravity (currently in scene buttons)
instead of each simulation having it's own gravity.
* Weight parameters for all effectors and an effector group
setting.
* Every effector can use noise.
* Most effectors have "shapes" point, plane, surface, every point.
- "Point" is most like the old effectors and uses the
effector location as the effector point.
- "Plane" uses the closest point on effectors local xy-plane
as the effector point.
- "Surface" uses the closest point on an effector object's
surface as the effector point.
- "Every Point" uses every point in a mesh effector object
as an effector point.
- The falloff is calculated from this point, so for example
with "surface" shape and "use only negative z axis" it's
possible to apply force only "inside" the effector object.
* Spherical effector is now renamed as "force" as it's no longer
just spherical.
* New effector parameter "flow", which makes the effector act as
surrounding air velocity, so the resulting force is
proportional to the velocity difference of the point and "air
velocity". For example a wind field with flow=1.0 results in
proper non-accelerating wind.
* New effector fields "turbulence", which creates nice random
flow paths, and "drag", which slows the points down.
* Much improved vortex field.
* Effectors can now effect particle rotation as well as location.
* Use full, or only positive/negative z-axis to apply force
(note. the z-axis is the surface normal in the case of
effector shape "surface")
* New "force field" submenu in add menu, which adds an empty
with the chosen effector (curve object for corve guides).
* Other dynamics should be quite easy to add to the effector
system too if wanted.
* "Unified" doesn't mean that force fields give the exact same results for
particles, softbody & cloth, since their final effect depends on many external
factors, like for example the surface area of the effected faces.
Code changes
* Subversion bump for correct handling of global gravity.
* Separate ui py file for common dynamics stuff.
* Particle settings updating is flushed with it's id through
DAG_id_flush_update(..).
Known issues
* Curve guides don't yet have all ui buttons in place, but they
should work none the less.
* Hair dynamics don't yet respect force fields.
Other changes
* Particle emission defaults now to frames 1-200 with life of 50
frames to fill the whole default timeline.
* Many particles drawing related crashes fixed.
* Sometimes particles didn't update on first frame properly.
* Hair with object/group visualization didn't work properly.
* Memory leaks with PointCacheID lists (Genscher, remember to
free pidlists after use :).
% sign for percentage assuming it is between 0-100, while factor is
for values 0-1.
Move collision setting absorption from modifier to collision settings,
was inconsistent to have it there as the only one, and made it have
range 0.0-1.0 instead of 0-100.
* WITH_GAMEENGINE and WITH_BULLET were being added to the compiler flags, only define in areas that use them.
* removed C++ unix warnings by adding -Wno-invalid-offsetof -Wno-sign-compare. the py api uses invalid offsets for attributes.
* removed C unix -Wnested-externs warning, these are everywhere in blender.
* removed unused BGE python headers
* undefine _XOPEN_SOURCE and _POSIX_C_SOURCE in the BGE, python redefines.
* renamed USE_BULLET in collision.c to WITH_BULLET for consistency
