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The idea is to accumulate all new tasks in a thread local queue
first without doing any thread synchronization (aka, locks and
conditional variables) and move those tasks to a scheduler queue
once they are all ready. This way we avoid per-task-pool lock
and only have one lock per bunch of tasks.
This is particularly handy when scheduling new dependency graph
node children. Brings FPS of cached simulation from the linked
below file from ~30 to ~50.
See documentation for BLI_task_pool_delayed_push_{begin, end}
and for TaskThreadLocalStorage::do_delayed_push.
Fixes T50027: Rigidbody playback and simulation performance regression with new depsgraph
Thanks Bastien for the review!
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Those are not depsgraph or C++ specific and can be used by everyone.
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This way everyone can benefit from it, not only dependency graph.
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The Issue
=======
For a long time now MinGW has been unsupported and unmaintained and at this point,
it looks like something that we should just leave behind and move on.
Why Remove
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One of the big motivations for MinGW back in the day is that it was free compared to MSVC which was licensed based.
However, now that this is no longer true we have basically stopped updating the need CMake files.
Along with the CMake files, there are several patches to the extern libs needed to make this work. For example, see:
https://developer.blender.org/diffusion/B/browse/master/extern/carve/patches/mingw_w64.patch
If we wanted to keep MinGW then we would need to make more custom patches to the external libs and
this is not something our platform maintainers are willing to do.
For example, here is the patches needed to build python: https://github.com/Alexpux/MINGW-packages/tree/master/mingw-w64-python3
Fixes T51301
Differential Revision: https://developer.blender.org/D2648
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Conflicts:
source/blender/blenloader/intern/versioning_270.c
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Use to avoid accidental missing break statements,
use ATTR_FALLTHROUGH to suppress.
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With only one MADD instruction we recover the orco data and reduce both the storage and the fetching cost of an attrib layer.
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Deactivated by default.
All shading attribs can be packed to take less VRAM at the cost of precision (not noticable in this case).
UVs can be packed into I16 but that limits their positions into the [-1, +1] range.
This could be a setting option in the future.
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Harmless but made accessing the first element read strangely.
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This is routinely mis-used to continuously run scripts,
causing performance problems.
This should be replaced with more specific handlers, or possibly timers.
See: T47811
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Places where it's removed are already replaced by newer logic.
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This reverts commit 76425feed8644a8fe1c0e52ef3f77b95012ba44e.
** Note **
This was supposed to be a merge, but it was rebased.
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Object Info node can be useful to give some variation to a single material assigned to multiple instances. This patch adds support for Viewport and BI.
{F499530}
Example: {F499528}
Reviewers: merwin, brecht, dfelinto
Reviewed By: brecht
Subscribers: duarteframos, fclem, homyachetser, Evgeny_Rodygin, AlexKowel, yurikovelenov
Differential Revision: https://developer.blender.org/D2425
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failure...
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Object Info node can be useful to give some variation to a single material assigned to multiple instances. This patch adds support for Viewport and BI.
{F499530}
Example: {F499528}
Reviewers: merwin, brecht, dfelinto
Reviewed By: brecht
Subscribers: duarteframos, fclem, homyachetser, Evgeny_Rodygin, AlexKowel, yurikovelenov
Differential Revision: https://developer.blender.org/D2425
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Conflicts:
source/blender/alembic/intern/abc_exporter.cc
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Did a mistake which started to use same TLS for all threads for such pools.
Also added some extra asserts to help catching the bugs.
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thread
We can not re-use anything for such pools, because we will know nothing about whether
the main thread is sleeping or not. So we identify such threads as 0, but we don't
use main thread's TLS.
This fixes dead-locks and crashes reported by Luca when doing playblasts.
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Handy to replace an existing link
(without having to store before/after links)
Use for id-props
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