This is something what was guaranteed in give_current_material(), just
copied some range checking logic from there.
Not sure what would be a proper fix here tho.
In fact, it was the whole remapping process that was broken in logic bricks area,
due to terrible design of links between those bricks...
Object copying was also broken in that case, fixed as well.
To be backported to 2.78.
Note that issue was actually probably there since ages, hidden behind dirty hacks
used in previous append code (though likely visible in some corner cases).
Listen kids: do not, never, ever, do what has been done for links between logic bricks. Never. Ever.
Even as pure runtime data it would have been bad, but as stored data...
Using context.active_gpencil_brush to access the active Grease Pencil brush
would result in a crash if trying to rename the brush, because the "ID" pointer
was not set.
To be backported to 2.78
Optimization attempt with BKE_library_idtype_can_use_idtype() was not taking into account
the fact that drivers may link virtually against any datablock...
Has to be rethinked, but for after 2.78 release, this commit is safe to backport.
Regression caused by rBb27ba26, we would always tag datablocks to update in G.main,
ignoring given bmain, now always use this one instead.
To be backported to 2.78.
Stupid mistake wrapping path validation code inside a BLI_assert, which means it was
only called in Debug builds...
Found by Sergey, thanks.
Should be backported to 2.78.
Those 'never null' ID pointers are really a PITA to handle... luckily we don't have much of those around!
Found by Sybren, thanks.
Should be backported to 2.78.
This is internal pointer helper for scene evaluation and tools, though exposed to bpy API,
it can give false 'dependency cycles' in bpy.data.user_map() results.
That's followup to rBe007552442634 really, both should be backported to 2.78
This is internal pointer helper for scene evaluation and tools, it's not exposed to bpy API anyway,
and can give false 'dependency cycles' in bpy.data.user_map() results.
Found by sybren in his Splode work.
Regression from rB036c006cefe471. We can't use self here, self is bpy.app, not pydescriptor of python path getsetter...
So for now, do not try to replace getsetter by actual value in bpy.app's dict,
just return static var generated on first run.
Should be safe for 2.78.
When drawing with Grease Pencil "continous drawing" for a long time
(i.e. basically, drawing a very large number of strokes), it could be
possible to cause lower-specced machines to run out of RAM and start
swapping. This was because there was no limit on the number of undo
states that the GP undo code was storing; since the undo states grow
exponentially on each stroke (i.e. each stroke results in another undo
state which contains all the existing strokes AND the newest stroke), this
could cause issues when taken to the extreme.
I) Filename was not put in temp Main generated to save selected data only,
this was breaking readcode when trying to open partial file, leading to missing
filename in final loaded Main data.
II) Read code would confuse partial .blend files with Undo ones, when they had no screen in them
(which happens to 99.999% of partial .blend files I guess).
Reported by @sybren, thanks.
Should be safe enough for 2.78 release.
Based on patch by @codemanx, but with slightly less verbose descriptions.
More detailed behavior etc. rather belongs to doc/python_api/examples/bpy.ops.x.py imho.
Root of the issue is that active render index became wrong. This is the actual
thing to be fixed, but as usual this is quite tricky to reproduce. Since such
bad situation might have happened more and fix isn't really difficult or
intruisive let's avoid crash for now.
Can be revisited once we figure out root of the issue.
Nice for 2.78 release.
Own fault in new ID management work, thought rebuild the DAG itself was
enough to actually update whole scene, but we actually need to tag datablocks
for update as well, when we change (or remove) one of their ID pointers...
This is really hack-fix actually, not sure why `get_pointcache_keys_for_time()` seems to assume
it will always find key for given part index at least for current frame, and whether this assumption
is wrong or whether bug happens elsewhere...
Anyway, this is to be wiped out in 2.8, so no point loosing too much time on it, for now merely
returning unchanged (i.e. zero'ed) ParticleKeys in case index2 is invalid. Won't hurt anyway,
even if this did not crash in release builds, would be returning giberish values.
See commit's comments for details, but this boils down to: do not try to use
purely runtime cache data as a 'real' ID pointer in readcode, it's likely
doomed to fail in some cases, and is bad practice in any case!
Thix fix implies dupliweight's object will be invalid until first scene update
(i.e. first particles evaluation).
This reverts commit 9444cd56db.
This commit caused some flickering in the bones when swapping IK to Fk.
While it's unclear why such change caused any regressions, let's revert
it to unlock the studio.
Fix cast shadows options (in material tab) not working in the viewport.
An off-by-one error. See D2194 for more.
Committing for Ulysse Martin (youle) who found & fixed this.
This is a bug in the multithreaded task manager in negative value range.
The problem here is that if previter is unsigned, the comparison in the
return statement is unsigned, and works incorrectly if stop < 0 &&
iter >= 0. This in turn can happen if stop is close to 0, because this
code is designed to overrun the stop by chunk_size*num_threads as
the threads terminate.
This probably should go into 2.78 as it prevents a crash.
