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Problem was introduced with r54648, which determined the initial interval for the Newton-Raphson method using the "total_time" of the collision - but this info is only defined for regular collisions, not
for the raycasting used in boids to find the "ground object". To ensure correct behavior, now clear the collision info before using it (good practice in any case), then check the inv_total_time variable
and use the standard 0.001 step if not defined.
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also replace callocs with mallocs since zeroing memory can be avoided.
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- boids random option was falling through to average.
- (NC_OBJECT | ND_DRAW) notifier was falling through to ND_SHADING button preview updates.
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generator with a local one. It's not thread safe and will not give repeatable
results, so in most cases it should not be used.
Also fixes #34992 where the noise texture of a displacement modifier was not
properly random in opengl animation render, because the seed got reset to a
fixed value by an unrelated function while for final render it changed each
frame.
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- minf, maxf, mini, maxi --> min_ff, max_ff, min_ii, max_ii
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references in bmesh docs.
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else if's
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fix for sequencer unique naming which was missed with string length update.
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(in keeping with most of blenders code)
also split some long lines in own code.
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http://markmail.org/message/fp7ozcywxum3ar7n
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the file.
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copying, some parts of the code are copying float -> short normals without scaling. fix coming next.
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with hair particle objects
* Noise is now considered an animated texture as it changes with every frame
* Converted a few places in particles code to use the particle system's own random table instead of BLI_frand.
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* Boids that can only fly shouldn't care about ground unless there's actually a collision object below them.
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* The old collisions code detected particle collisions by calculating the
collision times analytically from the collision mesh faces. This was
pretty accurate, but didn't support rotating/deforming faces at all, as
the equations for these quickly become quite nasty.
* The new code uses a simple "distance to plane/edge/vert" function and
iterates this with the Newton-Rhapson method to find the closest particle
distance during a simulation step.
* The advantage in this is that the collision object can now move, rotate,
scale or even deform freely and collisions are still detected reliably.
* For some extreme movements the calculation errors could stack up so much
that the detection fails, but this can be easily fixed by increasing the
particle size or simulation substeps.
* As a side note the algorithm doesn't really do point particles anymore,
but uses a very small radius as the particle size when "size deflect" isn't
selected.
* I've also updated the collision response code a bit, so now the particles
shouldn't leak even from tight corners.
All in all the collisions code is now much cleaner and more robust than before!
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mostly replace strcpy with BLI_strncpy and multiple strcat's with a BLI_snprintf().
also fix possible crash if CWD isnt available.
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- move GS() define into DNA_ID.h
- add BLI_utildefines as an automatic include with makesrna generated files.
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MAKE_ID, FILE_MAXDIR, moved the generic defines to BLI_utildefines.h.
no functional changes.
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* This caused nearly all particles to leak through the collision surface if simulation subframes were used and the collision object was moving.
* In addition to fixing this I also did some more cleanup of the collision code and refined some of the comments.
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initializers is a c99 feature.
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- omit render code from this warning (cmake only), until render branch is merged.
- moved -Wunused-parameter warning to apply to all C code in blender (not just ./source/blender), (cmake only).
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- 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.
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* Controls maximum rotation around side vector (as opposed to banking, which controls rotation around forward vector)
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account leading to problems when flying near the ground.
Reported by Mike Pan and Dalai Felinto by mail.
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* Particle collision with size was broken since raytrace optimizations by jaguarandi, now the collision code falls back to old slower method when the collision ray has a radius.
* Single goal/avoid object now works for boids.
* Some tiny improvements on collision avoidance for boids.
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* Boids didn't yet use global gravity
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* 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
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