Currently object bounds (`object.runtime.bb`) are lazily initialized
when accessed. This access happens from arbitrary threads, and
is unprotected by a mutex. This can cause access to stale data at
best, and crashes at worst. Eager calculation is meant to keep this
working, but it's fragile.
Since e8f4010611, geometry bounds are cached in the geometry
itself, which makes this object-level cache redundant. So, it's clearer
to build the `BoundBox` from those cached bounds and return it by
value, without interacting with the object's cached bounding box.
The code change is is mostly a move from `const BoundBox *` to
`std::optional<BoundBox>`. This is only one step of a larger change
described in #96968. Followup steps would include switching to
a simpler and smaller `Bounds` type, removing redundant object-
level access, and eventually removing `object.runtime.bb`.
Access of bounds from the object for mesh, curves, and point cloud
objects should now be thread-safe. Other object types still lazily
initialize the object `BoundBox` cache since they don't have
a data-level cache.
Pull Request: https://projects.blender.org/blender/blender/pulls/113465
Mainly to simplify code and also add some add type safety, replace
`GSet` with `blender::Set` for the storage of BMesh triangles and
vertices on each PBVH node. Some initial tests point to better
performance too, but the numbers are hard to verify so far.
Because of the larger `PBVHNode`, memory usage slightly increases
(observed a 2% increase with a 1M face grid) for regular Mesh sculpting,
but it seems `Set` is more memory efficient than `GSet`, because I also
observed a 10% decrease in memory usage for dynamic topology.
In the future nodes can be split in a more data-oriented fashion to
reduce memory usage overall.
This also makes it simpler to switch to another type in the future.
Pull Request: https://projects.blender.org/blender/blender/pulls/113907
For historic reasons buttons don't use the full button size as draggable
area by default, only a small part of it that is assumed to contain the
icon (e.g. of a label button). This isn't what we want for the big
preview buttons used here, their entire surface should be draggable.
We already have a workaround in place for this historic behavior, so we
can just enable that.
In 3.6 the names of node group sockets were using char arrays, but now
use allocated strings. The RNA system assigns nullptr to such strings
when assigning an empty string through python (UI assignment appears to
always generate a valid string). This creates issues with many STL
functions, in particular assigning nullptr to `std::string` will crash.
We have to check for valid pointers before using them in places that
don't handle nullptrs.
Pull Request: https://projects.blender.org/blender/blender/pulls/113924
Tested with IBUS on GNOME 45.
Added a capabilities flag to GHOST since support for IME works on
Wayland but not on X11, so runtime detection is needed.
When retiming key is added to frame before strip starts, this causes
crash on null dereference. After adding null check, this creates
retiming data, even though operation is not valid. To prevent creating
empty retiming data, `SEQ_retiming_data_ensure()` is only executed, when
operator actually adds a keyframe.
Currently the active attribute is stored as an index. This should be
changed to a string, but until then, adding or removing an attribute
changes the indeices. The workaround is to store the name and fix
the active attribute after the change.
The complaint illustrates how text measurement can be broken by a
drawing callback. This is because overlays are setting global_font_size
value, which is used by subsequent drawing, but does not explicitly set
size on the global_font_default font, which is needed for measurement.
Pull Request: https://projects.blender.org/blender/blender/pulls/113868
Introduced during snap code refactoring.
It seemed wrong to overwrite the calculated nearest distance based only
on the original distance.
But this is intentional, (the code could be improved since there are
unnecessary tests to detect the closest object).
Previously, Grease Pencil used a radius convention where
1 "px" = 0.001 units. This "px" was the brush size which would be
stored in the stroke thickness and then scaled by the point pressure
factor. Finally, the render engine would divide this thickness value by
2000 (we're going from a thickness to a radius, hence the factor of
two) to convert back into blender units.
Store the radius now directly in blender units. This makes it
consistent with how hair curves handle the radius.
* Removes the scaling in the render engine.
* Makes sure the grease pencil primitives use the correct radii
* Changes the drawing tool to work with screen space radius
* Draws the drawing tool cursor in screen space
* Makes sure the scaling is done when converting from legacy
grease pencil objects
* Makes sure the scaling is done when loading previous files
Consequences for the draw tool:
* Since the tool has a radius input in pixels, it now works in screen space. This is a pretty big change to how it works by default before, so a new option will have to be added that allows the brush to be in "Scene" space. This is similar to how it works in sculpt mode. But this is a bigger change, so I would like to split that into a separate PR.
Pull Request: https://projects.blender.org/blender/blender/pulls/113770
Similar to #104426, this adds a simple operator to set attribute values
for curves edit mode. The operator is very basic and is only meant to
be a first step for more attribute editing features. Some of the
functionality could be achieved with node tools, but without dynamic
socket types or access to the active attribute, it would be incomplete.
Some of the RNA property registration, retrieval, and setting is reused
from the mesh edit mode operator. The rest of the logic is similar but
harder to de-duplicate.
Pull Request: https://projects.blender.org/blender/blender/pulls/105076
Adds a "Select by Attribute" operator as mentioned in the discussion in
#105317. This is done in 4.0 to limit the breaking aspect of the removal
of face maps. The selection storage functionality is replaced by boolean
attributes. We already have a way to control the data in the boolean
attribute with the "Set Attribute" operator, but we didn't have a way to
convert the attribute into a selection.
This operator works on the active attribute if is a boolean attribute
and isn't on the face corner domain. It adds to the existing selection
similar to other existing operators.
While this behavior can be recreated as a node tool, we add it as a
builtin operator here to avoid limitations of the new node-based
tool system and to make the late-in-the-release-cycle change safer.
Pull Request: https://projects.blender.org/blender/blender/pulls/113772
`Vertex Crease`, like `Edge Crease`, is not supposed to use transform
symmetry.
So remove it.
(`Skin Resize` remains using symmetry since that case seems desirable.
See #84376)
Send notifiers to redraw dopesheet when keyframe is inserted/deleted.
Change default duration (and soft/hard min) to 0 for inserting
keyframe. This unnecessarily adds extra keyframe.
Pull Request: https://projects.blender.org/blender/blender/pulls/113765
