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
Dependancy missing while building depsgraph for particle systems.
fix: adding a relation texture->particles when texture has animation data.
Reviewed By: sergey
Maniphest Tasks: T76251
Differential Revision: https://developer.blender.org/D7573
This fixes an issue where an animated modifier property that's used as
variable in a driver wouldn't animate that driver's value.
Building the relations for the driver target creates the relation
`PARAMETERS_EVAL` → `DRIVER(variable)`. Building the relations for the
FCurve targeting the modifier property creates the relation
`ANIMATION_EXIT` → `GEOMETRY_EVAL_INIT`.
This means that there is NOT a relation `ANIMATION_EXIT` →
`PARAMETERS_EVAL`, and as a result, the driver is not properly updated
when its variable reads animated data. This is resolved in this commit
by adding the missing relation.
Differential Revision: https://developer.blender.org/D7615
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
issue: Painting a texture that is set as a particle system influencer, doesn't
update particles. An external trigger (such as changing influence slider)
is required to update particles.
fix: The root cause is a missing relationship from image to texture in the
dependency graph.
test: Once fixed, image texture painting updates expected dependencies
such as particle system influence or displacement modifier.
Reviewed By: sergey
Maniphest Tasks: T75845
Differential Revision: https://developer.blender.org/D7472
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.
The `build_driver_relations()` function in the depsgraph relations builder
adds relations between drivers that potentially write to the same memory
location. This of course is only useful when there are two or more drivers.
Both scaling the text itself, as well as scaling the curve wasnt
updating, now added relations for this.
Maniphest Tasks: T74701
Differential Revision: https://developer.blender.org/D7140
The parenting was using the old logic, but with new engine the draw is done using eval data.
Fixed the depsgraph relationship missing with bones to get an update when the bone is transformed.
Also fixed Snap cursor to Selected
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
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
Since `std::deque` is used in a few areas of the Depsgraph, and an
upcoming patch adds one more, it's time it's considered as "commonly
used type".
No functional changes.
- 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
This fixes a threading issue (T73593) between drivers that write to the
same memory address. Driver nodes in the depsgraph now get relations to
each other in order to ensure serialisation.
These relations are only added between drivers that target the same
struct in RNA, which is determined by removing everything after the last
period. For example, a driver with data path
`pose.bones["Arm_L"].rotation_euler[2]` will be grouped with all other
drivers on that datablock with a data path that starts with
`pose.bones["Arm_L"]` to form a 'driver group'.
To find a suitable relation within such a driver group, say the relation
(from → to), a depth-first search is performed (turned out to be
marginally faster than a breadth-first in my test case) to see whether
this will create a cycle, and to see whether there already is such a
connection (direct or transitive). This is done by recursively
inspecting the incoming connections of the 'to' node and thereby walking
from it towards the 'from' node. This is an order of magnitde faster
than inspecting the outgoing connections of the 'from' node.
This approach generalises the special case for array properties, so the
code to support that special case has been removed from
`DepsgraphRelationBuilder::build_animdata_drivers()`.
A test on the Spring rig [1] shows that this process adds approximately
8% to the build time of the dependency graph. In my test case, it takes
28 ms for this process on a total 329 ms construction time. However,
since it also made some code obsolete, it only adds 24 ms (=8%) to the
construction time. I have experimented with a simple cache to keep track
of known-connected (from, to) node pairs, but this did not significantly
improve the timing.
Note that animation data and drivers are already connected by a
relation, which means that animating a field and also changing it with a
driver will not cause conflicts.
[1] https://cloud.blender.org/p/spring/5d30a1076249366fa1939cf1
Differential Revision: https://developer.blender.org/D6905
Reviewed By: sergey, mont29
This partially fixes T73593.
The `add_relation(driver_key, property_entry_key, ...);` call can fail
in the following situation:
- A collection is linked, and instanced into the scene by an Empty.
- The collection contains an object with a driver on its `hide_render` or
`hide_viewport` property.
As the object doesn't exist as a real object in the scene, it's added with
`base_index=-1` to the depsgraph (see `DepsgraphNodeBuilder::build_collection()`).
As a result the node for syncing the restrictflags back to the base
isn't present in the depsgraph, and the `add_relation()` call failed.
This commit fixes the warning, simply by not attempting to add the
offending relation.
This dependency was removed in fd0bc7e002,
as there already were dependencies ANIMATION -> PARAMETERS and
PARAMETERS -> CACHE, making ANIMATION -> CACHE unnecessary.
Upon subsequent inspection, the ANIMATION -> PARAMETERS dependency was
there due to the fallback behaviour in
`RNANodeQuery::construct_node_identifier()`. Now this is no longer
relied upon, and the required relation is made explicit again.
The dependency graph has to know whether a driver must be re-evaluated
every frame due to a dependency on the current frame number. For python
drivers it was using a heuristic based on searching for certain sub-
strings in the expression, notably including '('.
When the expression is actually evaluated using Python, this can't be
easily improved; however if the Simple Expression evaluator is used,
this check can be done precisely by accessing the parsed data.
Differential Revision: https://developer.blender.org/D6624
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
Was caused by recent animation backup added to depsgraph as a part of
another bugfix.
This commit effectively disables the animation backup, restoring bug
related on handlers, but makes it possible to interact with objects
again.
Will re-iterate over handlers+animated properties.
It was possible to have object copy-on-write happening during
action's copy-on-write, which was causing access to a freed
memory from animation backup.
Solves crash reported in T73029.
It is possible to have action which is not nullptr but which have no
f-curves in it (for example, animate cube's location, then delete all
f-curves).
Such situation should not add time dependency as it could slow down
scene evaluation on frame change.
