From what I can see, there are two issues at play in {T76689} and its merged-in report {T76590}:
- In Blender ≤ 2.79 the bone layer dots were updated in the draw code. This ensured the info was up to date before drawing. This is no longer possible, as the drawing code uses evaluated objects, and those should not be written to. This has been addressed in rB709f126e8143 by calling the update function explicitly in various places in the code. The problem is that this wasn't added to all necessary spots.
- When in edit mode, changes are made to the edit bones but not to the 'actual' bones (this is synced when exiting edit mode). This causes undo to mess up the layer indicators.
I think both issues can be addressed by having the dependency graph update the used layer info as part of the armature evaluation. This will make the undo system work properly, and allows the removal of some `BKE_armature_refresh_layer_used()` from various places.
There is still the issue that there are two functions (`BKE_armature_refresh_layer_used()` and `ED_armature_edit_refresh_layer_used()`) that are both responsible for updating `bArmature::layer_used`. This is a trickier thing to solve, though, as the definition of the `EditBone` struct resides in the armature editor module. This means that blenkernel can't iterate over edit bones, but on the other hand the dependency graph shouldn't call any editor functions either. This is why I left the `ED_armature_edit_refresh_layer_used()` calls untouched.
The downside of recalculating `layer_used` from the dependency graph (at least in the way that I did it now) is that it is called every time a user moves a bone in pose mode. This frequency of updates is not necessary.
Differential Revision: https://developer.blender.org/D7709
For now the "Simulation" modifier only exists for point cloud objects, because
we need this for the particle system. Right now, the modifier is doing nothing.
There is a new `DEG_add_simulation_relation` function that is used
by the modifier to make sure that the simulation is evaluated before
the modifier is executed.
Reviewers: brecht, sergey
Differential Revision: https://developer.blender.org/D7549
Surrounding includes with an 'extern "C"' block is not necessary anymore.
Also that made it harder to add any C++ code to some headers, or include headers
that have "optional" C++ code like `MEM_guardedalloc.h`.
I tested compilation on linux and windows (and got help from @LazyDodo).
If this still breaks compilation due to some linker error, the header containing
the symbol in question is probably missing an 'extern "C"' block.
Differential Revision: https://developer.blender.org/D7653
All the driver-specific code in `fcurve.c` has been moved into a new file
`fcurve_driver.c`. The corresponding declarations have been moved from
`BKE_fcurve.h` to `BKE_fcurve_driver.h`.
All the `#include "BKE_fcurve.h"` statements have been investigated and
replaced with `BKE_fcurve_driver.h` where necessary.
No functional changes.
Fix T75279: BLI_assert failed when deleting object in debug build
(only).
And all general cases of ID pointer idproperties that would use a
data-block not referenced anywhere else in the depsgraph.
This includes idproperties from:
* All ID types;
* Bones and pose bones;
* Sequences;
* Nodes and sockets.
Differential Revision: https://developer.blender.org/D7551
This data block will be the container for simulation node trees.
It will be used for the new particle node system (T73324).
The new data block has the type `ID_SIM`.
It is not visible to users and other developers by default yet.
To enable it, activate the cmake option `WITH_NEW_SIMULATION_TYPE`.
New simulation data blocks can be created by running `bpy.data.simulations.new("name")`.
Reviewers: brecht
Differential Revision: https://developer.blender.org/D7225
Scene audio volume changes require the scene to be tagged with
`ID_RECALC_AUDIO_VOLUME` (see `BKE_scene_update_sound()`). Tagging
happens in the RNA update function `rna_Scene_volume_update()`, but that
function is not called by the animation system. As a result, animated
volume changes are not sent to the audio system.
This commit adds a new depsgraph operation node that sets this tag when
necessary, so that the animated values are used in the rest of the
depsgraph evaluation.
Reviewed By: sergey
Differential Revision: https://developer.blender.org/D7429
The `BKE_animsys.h` and `anim_sys.c` files already had a an "AnimData
API" section. The code in that section has now been split off, and
placed into `BKE_anim_data.h` and `anim_data.c`.
All files that used to include `BKE_animsys.h` have been adjusted to
only include the animation headers they need (sometimes none).
No functional changes.
More detailed symptoms: there was no curve cache created for an object
which was used by draw manager.
A bit tricky situation, which involves collection instances and their
proxies.
The root of the problem in the dependency graph was that instanced
collections visibility was not updated when object is requested with
different visibility. So what was happening is that one of the objects
was pulled as an indirect dependency of something invisible, so it
built instanced collections as if the instancer is invisible. After
that the same object was built as visible. Before this fix this was
only update object flags, the instanced collections still believed they
are invisible. Since there is no path via relations which would connect
visible object with instanced objects the visibility flush which is
happening during graph finalization did not "fix" the visibility flags.
This change makes it so instanced collections are updating their
visibility when their instancer's visibility is changing to truth.
This is similar to how collections will accumulate their visibility
when same collection is used from multiple ones with different
visibility.
However, this alone wasn't enough to get crash fixed. This marked
collections as visible, but the geometry component of the curve object
was still considering self as invisible.
This is something tricky, since the code which is responsible for this
issue was added as an optimization in afb4da6650. This looks like like
an oversight in that commit since it's rather weird that ID node's
flag would depend on construction order (in "normal" object builder the
ID node's directly_visible flag is initialized to object's visibility).
So it seems logical to get this part of code in sync between "regular"
and "accumulative" object builder.
And last but not least the naming is_directly_visible is old and does
not really represent what it actually mans now: a more correct name
would be "will be used by the draw manager".
Differential Revision: https://developer.blender.org/D7217
Mpving utils from idcode to idtype proved to be somewhat painful for
some reasons, but now all looks good.
Had to add a fake/empty shell for the special snowflake too,
`ID_LINK_PLACEHOLDER/INDEX_ID_NULL`...
Was happening when having compositor open with Viewer node attached
directly to Render Layers output.
There were two things involved here:
1. The code which was storing CoW-ed versions of IDs was checking all
IDs for whether they are expanded or not. This was causing access
of freed memory for deleted IDs which do not need CoW (such as IM).
Simple fix: store ID type as a scalar and use early check before
doing more elaborate check based on accessing fields of id_cow.
2. The code which was ensuring view layer pointer is doing CoW for
scene. This isn't an issue on its own, but scene might have an
embedded ID such as compositor which was actually traversed by the
ID remap routines. This was causing remapping procedure to go into
non-updated copy of compositor, accessing freed Viewer image ID.
Solved by not recursing into embedded IDs for datablocks as those
are supposed to have own copy-on-write operations which takes care
of re-mapping.
Reported my Bastien, and also pair-coded with him.
This commit is a full refactor of the grease pencil modules including Draw Engine, Modifiers, VFX, depsgraph update, improvements in operators and conversion of Sculpt and Weight paint tools to real brushes.
Also, a huge code cleanup has been done at all levels.
Thanks to @fclem for his work and yo @pepeland and @mendio for the testing and help in the development.
Differential Revision: https://developer.blender.org/D6293
Unused no-op operation nodes are not bound to a callback function, and
have no outgoing relations. Incoming relations of such nodes are removed
since ff60dd8b18. However, this was done
too broadly, causing too many relations to be lost and indirectly linked
objects to be unevaluated.
This commit introduces a `DEPSOP_FLAG_FAKE_USER` flag for operation
nodes, which indicates they are not to be removed, even when they appear
to be unused.
Reviewed By: sergey
Differential Revision: https://developer.blender.org/D7074
This fixes an issue where drivers using `object.dimension` only add a dependency on `GEOMETRY` to the depsgraph, whereas they should also depend on `TRANSFORM`.
This patch adds a new no-op operation that depends on the geometry and transform components to the Parameters component.
An alternative implementation would be to have `RNANodeQuery::construct_node_identifier` return multiple node identifiers. However, this would spread throughout the depsgraph code and unnecessarily force many other functions to either return or handle multiple nodes where in 99.999% of the time a single node would suffice.
The new `DIMENSIONS` node is added for each object. An upcoming patch will go over all no-op operation nodes and remove them from the depsgraph. Since this is a more dangerous operation, it'll be reviewed separately.
Differential Revision: https://developer.blender.org/D7031
- Use 'BKE_object_material_*', 'BKE_id_material_*' prefix
for functions that operate on Object and ID types.
- Use '_len' suffix for length (matching BLI naming).
- Use '_p' suffix for functions that return a pointer to values
where the value would typically be returned.
Functions renamed:
- BKE_object_material_resize was BKE_material_resize_object
- BKE_object_material_remap was BKE_material_remap_object
- BKE_object_material_remap_calc was BKE_material_remap_object_calc
- BKE_object_material_array_p was BKE_object_material_array
- BKE_object_material_len_p was BKE_object_material_num
- BKE_id_material_array_p was BKE_id_material_array
- BKE_id_material_len_p was BKE_id_material_num
- BKE_id_material_resize was BKE_material_resize_id
- BKE_id_material_append was BKE_material_append_id
- BKE_id_material_pop was BKE_material_pop_id
- BKE_id_material_clear was BKE_material_clear_id
FreeStyle line styles were not part of the dependency graph, and
blacklisted from the Copy-on-Write system. As a result, animated
FreeStyle properties would not be updated by the animation system,
resulting in T72213. There was an explicit call to run the animation
system on the original datablocks, but that was (for good reasons)
removed in D5394.
This commit adds the FreeStyleLineStyle datablocks to the dependency
graph and allows them to be handled by the CoW system. As a result
- the UI now updates properly when properties are animated, and
- animated property values are actually used when rendering.
This commit includes @Sergey's patch P1222, which unifies two bits of
code that did the same thing: check whether datablock type is covered by
copy-on-write.
Reviewed By: sergey, brecht
Differential Revision: https://developer.blender.org/D6609
This is something which worked in Blender 2.79.
Need to do special trickery to ensure peoxy_from points to a
proper object.
Differential Revision: https://developer.blender.org/D6040
This change is two-fold:
- Ensure the result of the F-Curve evaluation is stored on the FCurve
object. This was done in 2.79 but lost when we moved to more granular
per-curve evaluation from the depsgraph.
- Flush this result from the CoW copy back to the original.
Reviewed by: sergey
Differential Revision: https://developer.blender.org/D5888
In some rare cases it is convenient to store a short array value
as a custom property, e.g. a vector or color. For example, it may
be helpful when importing/exporting certain formats that support
custom or nonstandard attributes on objects.
The custom property storage already can handle arrays in order to
support properties defined via python. The only thing missing is
UI support (and some bugs), and this patch fixes that:
- Allow editing short array properties via Custom Properties panel.
- Fix a UI layout sizing bug triggered by the previous item.
- Fix a dependency graph bug with drivers using such properties.
- Make RNA_*_get_default_array code robust in case of size mismatch.
- Support custom default values for array properties, allowing
both an array and a scalar value.
Reviewers: campbellbarton
Differential Revision: https://developer.blender.org/D5457
Such reload can no longer happen directly and is to be done via dependency
graph.
Eventually, the movie cache will become shared across all copies of the
clip, but even then we still need to have dependency graph mechanism because
we need to update FFmpeg animation handle (which can not be shared across
the copies).
There are two aspects to the problem:
- Dependency graph update for compositor preview was missing
updates flush.
Apparently, update for new frame style of update will take
care of flushing, but not the update tagged style of update.
This goes to a legacy dependency graph and is to be changed
at some point, but not so close to the release.
- Movie clips were missing from the compositor dependency graph.
This fixes part of T66519.
Reviewers: brecht
Reviewed By: brecht
Differential Revision: https://developer.blender.org/D5256
The root of the issue comes to the fact that part of dependency graph
is being removed, without doing any further remapping.
This was happening because only materials used by objects were pulled
in, so when material mode is changed some material became unused and
removed from the dependency graph and freed, causing object or its
data to point to a freed memory in its materials array.
Simplest and safest way to solve this is to pull materials referenced
by both object and object data. This causes somewhat higher memory
usage but keeps evaluated state of scene in an always consistent state,
without any need to tag/update object's data on material mode change.
Don't think it is a problem in practice.
Reviewers: brecht, fclem
Reviewed By: brecht, fclem
Differential Revision: https://developer.blender.org/D5172
This change makes it so sound handles are created for evaluated scene,
sequencer and speakers. This allows to have properly evaluated animation
on them.
For the viewport playback sound uses regular dependency graph.
For the final render sound uses dependency graph created for render pipeline,
which now also contains sequencer and sound datablocks.
All the direct sound update calls are replaced with corresponding dependency
graph recalc tag.
