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This commit integrates the work done so far on the new dependency graph system,
where goal was to replace legacy depsgraph with the new one, supporting loads of
neat features like:
- More granular dependency relation nature, which solves issues with fake cycles
in the dependencies.
- Move towards all-animatable, by better integration of drivers into the system.
- Lay down some basis for upcoming copy-on-write, overrides and so on.
The new system is living side-by-side with the previous one and disabled by
default, so nothing will become suddenly broken. The way to enable new depsgraph
is to pass `--new-depsgraph` command line argument.
It's a bit early to consider the system production-ready, there are some TODOs
and issues were discovered during the merge period, they'll be addressed ASAP.
But it's important to merge, because it's the only way to attract artists to
really start testing this system.
There are number of assorted documents related on the design of the new system:
* http://wiki.blender.org/index.php/User:Aligorith/GSoC2013_Depsgraph#Design_Documents
* http://wiki.blender.org/index.php/User:Nazg-gul/DependencyGraph
There are also some user-related information online:
* http://code.blender.org/2015/02/blender-dependency-graph-branch-for-users/
* http://code.blender.org/2015/03/more-dependency-graph-tricks/
Kudos to everyone who was involved into the project:
- Joshua "Aligorith" Leung -- design specification, initial code
- Lukas "lukas_t" Toenne -- integrating code into blender, with further fixes
- Sergey "Sergey" "Sharybin" -- some mocking around, trying to wrap up the
project and so
- Bassam "slikdigit" Kurdali -- stressing the new system, reporting all the
issues and recording/writing documentation.
- Everyone else who i forgot to mention here :)
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This is mainly to make physics modifiers being able to work
with it. For other cases this main is not needed.
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The issue was caused by render engine duplicating the curve object because
it then converts the object to mesh. The mesh deform duplication code didn't
duplicate binded data, so after duplication modifier is no longer applyable.
So now copyData of mesh deform would copy data needed for binding. This solves
reported render bug and also solves possible frustration when duplicating an
object with mesh deform in the viewport with Shift-D.
Checked other modifiers and laplacian deform already was copying binded data.
Didn't see other modifiers which might also need to copy extra data.
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It now supports different scheduling schemas: dynamic and static.
Static one is the default and it splits work into equal number of
range iterations.
Dynamic one allocates chunks of 32 iterations which then being
dynamically send to a thread which is currently idling.
This gives slightly better performance. Still some tricks are
possible to have. For example we can use some smarter static scheduling
when one thread might steal tasks from another threads when it runs
out of work to be done.
Also removed unneeded spin lock in the mesh deform evaluation,
on the first glance it seemed to be a reduction involved here but
int fact threads are just adding value to the original vertex
coordinates. No write access to the same element of vertexCos
happens from separate threads.
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Mostly harmless things, though the 'multires' error was a real bug.
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Quite straightforward change, don't think some extra explanation is needed.
This gives about 15% speedup of the modifier evaluation on my laptop.
Reviewers: campbellbarton
Differential Revision: https://developer.blender.org/D836
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This commit switches meshdeform modifier to use threads to evaluate
the vertices positions using the central task scheduler.
SO now we've got an utility function to help splitting the for loop
into tasks using BLI_task module which is pretty straightforward to
use: it gets range (which is an integer lower and higher bounds) and
the function and userdata to be invoked for each of the iterations.
The only weak point for now is the passing the data to the callback,
this isn't so trivial to improve in pure C.
Reviewers: campbellbarton
Differential Revision: https://developer.blender.org/D838
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Opted to keep includes if they are used indirectly (even if removing is possible).
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modifiers, nodes)
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For now disable using linked edit mesh in the meshdeform modifier.
This is because editbmesh_get_derived_cage_and_final() might easily
conflict with the thread which evaluates object which is in the edit
mode for this mesh.
We'll support this case once granular dependency graph is landed.
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also replace AT with __func__ since AT expands the full pathname
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One hour of efforts to spot such a small dummy typo!
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get_cddm and get_dm are called within modifiers so they wont ensure normals are valid, added an arg to optionally ensure valid normals.
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- mult_m4_m4m4 -> mul_m4_m4m4
- mult_m3_m3m4 -> mul_m3_m3m4
these temporary names were used to avoid problems when argument order was switched.
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EditDerivedBMesh.tc -> em. ('tc' is odd name which isn't used elsewhere).
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modifers too!
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despeckle node.
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to pass options, instead of having one parameter per boolean flag (i.e. replaces current useRenderParams and isFinalCalc by a single ModifierApplyFlag flag. ModifierApplyFlag is an enum defined in BKE_modifier.h). This way we won't anymore have to edit all modifier files when e.g. adding a new control flag!
Should have no effect over modifier behavior.
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else if's
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gcc 4.6 was giving warnings like this:
"warning: format not a string literal and no format arguments [-Wformat-security]"
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messages.
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inconsistent with similar functions & math notation:
mul_m4_m4m4(R, B, A) => mult_m4_m4m4(R, A, B)
mul_m3_m3m4(R, B, A) => mult_m3_m3m4(R, A, B)
For branch maintainers, it should be relatively simple to fix things manually,
it's also possible run this script after merging to do automatic replacement:
http://www.pasteall.org/27459/python
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* replace inline loops with api calls.
* change constraints so verts with 0.0 weight are ignored like they are everywhere else.
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http://markmail.org/message/fp7ozcywxum3ar7n
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https://svn.blender.org/svnroot/bf-blender/trunk/blender, source/blender/gpu/intern/gpu_buffers.c updated from trunk and re-made edits to use getTessFace* functions.
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floats.
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& editors.
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