The sockets are not exposed in any nodes yet.
They work similar to the Object/Collection sockets, which also
just reference a data block.
This is part of D11222.
This fixes T87666 and T83252.
The boolean modifier and geometry nodes can depend on the geometry
of an entire collection. Before, the modifiers had to manually create relations
to all the objects in the collection. This worked for the most part, but was
cumbersome and did not solve all issues. For example, the modifiers were not
properly updated when objects were added/removed from the referenced collection.
This commit introduces the concept of "collection geometry" in the depsgraph.
The geometry of a collection depends on the transforms and geometry of all
the objects in it. The boolean modifier and geometry nodes can now just depend
on the collection geometry instead of creating all the dependencies themselves.
Differential Revision: https://developer.blender.org/D11053
This adds the LineArt grease pencil modifier.
It takes objects or collections as input and generates various grease
pencil lines from these objects with the help of the active scene
camera. For example it can generate contour lines, intersection lines
and crease lines to name a few.
This is really useful as artists can then use 3D meshes to automatically
generate grease pencil lines for characters, enviroments or other
visualization purposes.
These lines can then be baked and edited as regular grease pencil lines.
Reviewed By: Sebastian Parborg, Antonio Vazquez, Matias Mendiola
Differential Revision: http://developer.blender.org/D8758
This change removes copy-on-write operations from ID nodes which do not
need copy-on-write.
Should be no functional changes, as before the copy-on-write operation
would do nothing for those nodes anyway.
Building IDs which are not covered by copy-on-write process was not
implemented, which was causing parameters block not present, and, hence
causing crashes in areas which expected parameters to present.
First part of this change is related on making it so Copy-on-Write is
optional for ID nodes in the dependency graph.
Second part is related on using a generic builder for all ID types
which were not covered by Copy-on-Write before.
The final part is related on making it so build_id() is properly
handling ParticleSettings and Grease Pencil Data. Before they were not
covered there at all, and they need special handling because they do
have own build functions.
Not sure it worth trying to split those parts, as they are related to
each other and are not really possible to be tested standalone. Open
for a second opinion though.
Possible nut-tightening is to re-organize build_id() function so
that every branch does return and have an assert at the end, so that
missing ID type in the switch statement is easier to spot even when
using compilers which do not report missing switch cases.
As for question "why not use default" the answer is: to make it more
explicit and clear what is a decision when adding new ID types. We do
not want to quietly fall-back to a non-copy-on-write case for a newly
added ID types.
Differential Revision: https://developer.blender.org/D10075
If a force field was of type "Texture", any changes of that texture (e.g.
its type - as reported in T85139 - or also its properties) were not
properly updating rigid bodies and particle systems.
Now ensure that texture is actually in the depsgraph and set up relation
accordingly.
Also fixes T75198.
Maniphest Tasks: T85139
Differential Revision: https://developer.blender.org/D10234
This reverts commit 76fd41e9db. This should have
been reverted along with 0f95f51361, since this
change by itself is causing crashes when the depsgraph accesses a non-existent
copy-on-write component.
Ref T84717
Revert "Fix T83411: Crash when using a workspace/layout data path in a driver"
The fix for the crash exposed design violation in the viewport shading updates,
which is for some reason relying on dependency graph tag of interface data.
The viewport module did not respond to the issue in 2 weeks, and the architect
considered missing update for multiple users a more serious issue than a crash
in a very specific case.
This reverts commit 0f95f51361.
The WORLD_UPDATE operation (needed to free the gpu material) was already
defined in DepsgraphNodeBuilder::build_world, but corresponding relation
was only set up for changes in the nodetree, not for changes in the
world/material itself in DepsgraphRelationBuilder::build_world.
Direct changes to these surface properties in the UI were updating
properly through RNA property update callbacks, but these are not called
from the animation system.
So now add these relations in the depsgraph.
Not 100% sure this is the right place for this (since e.g. eevee engine
seems to handle e.g. animated light paramters just fine through
EEVEE_cache_populate / eevee_light_setup, but properly freeing gpu
materials wont happen for worlds in e.g eevee_id_world_update and also
not for materials)
Maniphest Tasks: T84250
Differential Revision: https://developer.blender.org/D9959
This change removes copy-on-write operations from ID nodes which do not
need copy-on-write.
Should be no functional changes, as before the copy-on-write operation
would do nothing for those nodes anyway.
Building IDs which are not covered by copy-on-write process was not
implemented, which was causing parameters block not present, and, hence
causing crashes in areas which expected parameters to present.
First part of this change is related on making it so Copy-on-Write is
optional for ID nodes in the dependency graph.
Second part is related on using a generic builder for all ID types
which were not covered by Copy-on-Write before.
The final part is related on making it so build_id() is properly
handling ParticleSettings and Grease Pencil Data. Before they were not
covered there at all, and they need special handling because they do
have own build functions.
Not sure it worth trying to split those parts, as they are related to
each other and are not really possible to be tested standalone. Open
for a second opinion though.
Possible nut-tightening is to re-organize build_id() function so
that every branch does return and have an assert at the end, so that
missing ID type in the switch statement is easier to spot even when
using compilers which do not report missing switch cases.
As for question "why not use default" the answer is: to make it more
explicit and clear what is a decision when adding new ID types. We do
not want to quietly fall-back to a non-copy-on-write case for a newly
added ID types.
Differential Revision: https://developer.blender.org/D10075
Remove DNA headers, using forward declarations where possible.
Also removed duplicate header, header including it's self
and unnecessary inclusion of libc system headers from BKE header.
The implementation is pretty much the same as for Object sockets.
The socket color is the one that is used for collections in the outliner.
Part of D9739.
Modernize loops by using the `for(type variable : container)` syntax.
Some loops were trivial to fix, whereas others required more attention
to avoid semantic changes. I couldn't address all old-style loops, so
this commit doesn't enable the `modernize-loop-convert` rule.
Although Clang-Tidy's auto-fixer prefers to use `auto` for the loop
variable declaration, I made as many declarations as possible explicit.
To me this increases local readability, as you don't need to fully
understand the container in order to understand the loop variable type.
No functional changes.
Not sure why Collection was the only ID for which depsgraph building did
not check for potential recursion?
Reviewed By: sergey
Maniphest Tasks: T82149
Differential Revision: https://developer.blender.org/D9365
It is possible to create scene strips pointing to each other. This is
sanitized when rendering, but in dependency graph such setup will cause
infinite loop.
This patch fixes loop in dependency graph, but same problem exists in
audaspace
Reviewed By: sergey
Differential Revision: https://developer.blender.org/D9262
The design for how we approach the "Everything Nodes" project
has changed. We will focus on a different part of the project initially.
While future me will likely refer back to some of the code I remove here,
there is no point in keeping this code around in master currently.
It would just confuse other developers working on the project.
This does not remove the simulation modifier and data block. Those are
just cleaned up, so that the boilerplate code can be reused in the future.
Corrects incorrect usage of contraction for 'it is', when possessive 'its' was required.
Differential Revision: https://developer.blender.org/D9250
Reviewed by Campbell Barton
The example file in T81218 has a driver that maps a bone's X-location to
the number of BBone segments. This caused a dependency cycle, which
resulted in bad thread serialisation, which caused the crash.
This patch breaks the dependency cycle `BONE_LOCAL` →
`DRIVER(bones["Bone"].bbone_segments)` → `BONE_LOCAL`. The 'Driver Data'
relation now points to `BONE_SEGMENTS` when the driven property starts
with `bbone_`.
Differential Revision: https://developer.blender.org/D9122
Add a dependency graph relation Force Object Animation → Scene Rigid
Body World Rebuild. This ensures that the rigid body world is rebuilt
when a force object is re-tagged for animation updates.
The extra relation doesn't add any new calculations when the animation
is running, as the Time Source node already had a relation to the
scene's `RIGIDBODY_REBUILD` node.
The relation is created directly to the `RIGIDBODY_REBUILD` Operation. I
would have liked to target the containing Component instead. However,
that has the `RIGIDBODY_SIM` operation as entry node, which isn't enough
to actually fix T80121.
Reviewers: Sergey
Differential Revision: https://developer.blender.org/T80121
Because depsgraph isn't rebuild for animated properies, we have to
assume that active bodies will always want to have updates from the
rigidbody simulation.
We need to have transforms from passive objects if they are animated or
driven by parent relations. This is not immediately obvious as the
object transform matrix will still be available, it is just one frame
behind in some cases.
Fixed dependency cycles if there is a constraint between two rigid
bodies. Because bullet keeps track of its simulated bodies, we do not
need to supply objects transforms as bullet should already have them.
I need combine these two fixes because otherwise we will get depsgraph
warnings that nodes are missing that it expects to be there.
Reviewed By: Sergey, Jacques
Differential Revision: http://developer.blender.org/D8732
This does not fix all the cases in the bug report, because there are multiple
different issues. Only the first two are fixed. The third is probably a known
issue for now.
Before this patch, the rigid body simulation was always done after modifiers
are evaluated, because to perform the simulation, the final geometry of the
object was required. However, the geometry is not required in all cases,
depending on the selected collisions shape.
This patch changes it so that when the simulation does not need the
evaluated geometry, the simulation will be done before the modifiers
are evaluated. This gives the modifiers access to the simulated positions.
When the rigid body simulation does depend on the evaluated geometry,
it will still be performed after modifiers are evaluated.
The simulation will be performed after modifiers are evaluated, iff
the collision shape is "Convex Hull" or "Mesh" and the source is set
to "Deform" or "Final".
Reviewers: sergey
Differential Revision: https://developer.blender.org/D8487
This patch adds a new compound shape entry to the shape selection
dropdown. It also corrects wrong inertia calculation for convex hulls,
that resulted in strange behavior for small objects.
The compound shape take the collision shapes from its object children
and combines them. This makes it possible to create concave shapes from
primitive shapes. Using this instead of the mesh collision shape is
often many times faster.
Reviewed By: Sergey, Sebastian Parborg
Differential Revision: http://developer.blender.org/D5797
The extra depsgraph relations that were added to prevent threading
issues during evaluation (rB4c30dc343165) caused a considerable slowdown
on complex scenes with many drivers (T77277, T78615). This commit
improves this as follows.
Only the following drivers are considered for execution serialisation:
- Drivers on Array elements, and
- Drivers on Boolean or Enum properties.
Relations between drivers of the same arrays are added blindly, i.e.
without checking for transitive or cyclic relations. This is possible as
other relations will just target the `PROPERTIES_ENTRY` or
`PROPERTIES_EXIT` nodes.
Checking whether a driver is on an array is first done by checking
`array_index > 0`, and then falling back to resolving the RNA path to an
RNA property and inspecting that.
The code also avoids circular dependencies when there are multiple
drivers on the same property. This not something that is expected to
happen (both the UI and the Python API prevent duplicate drivers), it
did happen in a file (F8669945, example file of T78615) and it is easy
to deal with here.
Reviewers: sergey
Subscribers: mont29
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