The new grid socket (#115270) will make these nodes obsolete and
provide more elegant ways of implementing the features. Removing
these nodes now to clean up and make future changes simpler.
Pull Request: https://projects.blender.org/blender/blender/pulls/115567
This avoids some duplication between the modifier and operator evaluation
contexts and also makes it easier to make independent from a specific
evaluation context (so e.g. the simulation nodes code shouldn't care whether
it's used from a modifier or operator.
Pull Request: https://projects.blender.org/blender/blender/pulls/115512
This utility was already duplicated in two places and planned to be used
more. While we should usually avoid creating arrays the size of the
indexed array (rather than the size of the mask), sometimes it does seem
to be the best option, and we're helped by the fact that most memory
stays unintialized for a small mask (allocating but not writing to memory
pages at all generally isn't too expensive).
Pull Request: https://projects.blender.org/blender/blender/pulls/115491
The node is still a bit non-standard in that it resizes an existing
mesh rather than creating a new one, but this commit makes the extrude
node a bit more similar to other mesh operations and makes other
miscellaneous improvements, including:
- Less use of intermediate states (compared to initial or final)
- Topology map building is no longer reimplemented for the node
- Attribute interpolation happens in a more familiar way
- Some topology maps can be skipped if a domain is empty
- More use of `IndexMask` instead of an array of indices
- Logarithmic cost index mask lookup is avoided
- Build index maps instead of implementing attribute propagation
separately for every type
Overall these changes might improve performance in a few cases, and
they reduce Blender's binary size by 58 KB. Edge indices are different
in some cases of the edge mode, so the test files are updated.
The ImplicitSharingPtr has an implicit constructor for raw pointers.
This has unintended effects when comparing an ImplicitSharingPtr to a
raw pointer: The raw pointer is implicitly converted to the shared
pointer (without change in refcount) and when going out of scope will
decrement user count, eventually freeing the data.
Conversion from raw pointer to shared pointer should not happen
implicitly. The constructor is made explicit now. This requires a little
more boilerplate when constructing a sharing pointer. A special
constructor for the nullptr is added so comparison with nullptr can
still happen without writing out a constructor.
Pull Request: https://projects.blender.org/blender/blender/pulls/115476
Add a function that copies selected values to groups of values in the
result array. Add a runtime-typed version and a version for affecting
all attributes. Also make the "gather_group_to_group" follow the
same pattern.
Add an "Index Switch" node which is meant as a simpler version of
the "Menu Switch" from #113445 that doesn't allow naming items
or displaying them in a dropdown, but still allows choosing between
an arbitrary number of items, unlike the regular "Switch" node.
Even when the Menu Switch is included (which should be in the
same release as this), it may still be helpful to have explicit mapping
of indices, and a fair amount of the internals can be shared anyway.
Pull Request: https://projects.blender.org/blender/blender/pulls/115250
This loop might be 7x faster (not whole node).
All other code is already parallel, not sure why this was disabled.
Potentially, this was missed after some cleanup.
Pull Request: https://projects.blender.org/blender/blender/pulls/115246
Remove unnecessary N^2\n complexity. Disjoint set will join all
elements in list, even without fully-related joins. Usually cost is
small (10%~ for this specific function), but some certain files might
be 10000x slower. But that is very corner case.
Pull Request: https://projects.blender.org/blender/blender/pulls/115245
Store paint masks as generic float attributes, with the name
`".sculpt_mask"`. This is similar to 060a534141, which made
the same change for face sets. The benefits are general
consistency, nicer code, and more support in newer areas
that deal with attributes like geometry nodes.
The RNA API is replaced with one created in Python. The new
API only presents a single layer as an attribute class, so it
should be simpler to use in general:
- Before: `object.data.vertex_paint_masks[0].data[0].value`
- After: `object.data.vertex_paint_mask.data[0].value`
Pull Request: https://projects.blender.org/blender/blender/pulls/115119
Avoid the need to call the separate `BKE_mesh_wrapper_minmax` function
that dealt with the edit mesh wrapper. This makes the API inconsistent,
since other mesh functions don't implicitly deal with the wrapper.
But the bounds are a bit of a special case anyway in regard
to the GPU subdivision wrapper already, and this is much more
convenient in the rest of the refactors for #96968.
This struct is currently defined in the `functions` module but not actually used there. It's only used by the geometry nodes module, with an indirect dependency from blenkernel via simulation zone baking. This scope is problematic when adding grids as socket data, which should not be part of the functions module.
The `ValueOrField` struct is now moved to blenkernel, so it can be more easily extended to other kinds of data that might be passed around by geometry nodes sockets in future. No functional changes.
Pull Request: https://projects.blender.org/blender/blender/pulls/115087
This changes a bunch of nodes that have a data type drop-down to using a dynamic
node declaration that changes based on the selected data type instead of always having
all sockets. This greatly simplifies the code and is less weird than having suffixes on
socket identifiers.
Backward compatibility and forward compatibility remain due to #113497 and #113984.
One user-visible change is that changing the data type in these nodes does not break
the link anymore.
It may be necessary to bring back some functionality from link-drag-search afterwards.
Pull Request: https://projects.blender.org/blender/blender/pulls/113553
Convert the vector socket from four nodes to a rotation socket, adding
versioning to insert the conversion nodes and change the default values
where necessary.
- Distribute Points on Faces
- Instance on Points
- Rotate Instances
- Transform Geometry
Implicit conversions from vectors and floats, and to vectors have been
added, though using rotation sockets directly can be faster, since converting
to and from Euler rotations is slow. Conversion nodes are not inserted
by versioning if the implicit conversions can be used.
This change is not forward compatible with 3.6, and socket values
are lost when opening 4.1 files in 4.0. The correct socket types are
added back in old versions, though newly added conversion nodes
may have to be removed.
Pull Request: https://projects.blender.org/blender/blender/pulls/111482
Extend node tools to display tool assets in object mode as well
as edit and sculpt modes. For consistency with existing Blender
design, selection cannot be set and is just "true" in object mode
because it can't be visualized. The visibility of tools can be
customized per object type in object mode as well.
See #101778
Pull Request: https://projects.blender.org/blender/blender/pulls/114819
For improving performance in the triangulate node (#112264), it's
helpful to know whether the mesh has edges or faces that overlap
each other. If that is known to be false, the node can skip edge de-
duplication.This might apply to the future "Replace Faces" node too.
This information is stored as a flag on the mesh and set in various
places that create "clean" new meshes. It isn't calculated lazily unlike
other other areas, because the point is to improve performance, and
the calculation probably isn't faster than the duplication check it's
meant to replace.
Pull Request: https://projects.blender.org/blender/blender/pulls/113205
This adds a "Group ID" input to the Fill Curve node, per #102285.
The curve filling operation is performed separately for each group,
so curves associated with different Group IDs do not intersect.
This implementation also supports Grease Pencil 3 curves.
Co-authored-by: Hans Goudey <hans@blender.org>
Pull Request: https://projects.blender.org/blender/blender/pulls/114048
This function shouldn't return invalid index. Instead assertion in used.
While the branchless code path may not be observably faster in current
code, it should work better with instruction level parallelism in the future.
Pull Request: https://projects.blender.org/blender/blender/pulls/114682
Use general util to build mesh topology map instead of array of vectors.
This util can be optimized in future by better multithreading and new
algorithms with better CPU catch heuristics. For now this will provide
better usage of memory without a lot of small allocations.
Pull Request: https://projects.blender.org/blender/blender/pulls/114683
During the 2.93 to 3.0 transition, instance handling was made more
explicit in general. However, we forgot to change the boolean node,
which still implicitly gathered all the instanced meshes and fed them
to the boolean algorithm separately. We waited for the next breaking
release, 4.0 to "correct" this, and did it in fc06a471f1.
However, in that commit it was assumed that the "Self Intersection"
mode would be able to address the use case. The idea was also to push
some complexity outside of the boolean code, which is already one of
the more complex areas in Blender. Though it's possible to have a
"Group ID" or "Shape ID" input in the future as well, it's also
reasonable to expect some instances to be processed by the node,
even though it isn't quite consistent.
This commit makes a compromise by processing meshes contained by
top-level instances. We do it at this stage of the release to avoid the
breaking change.
Pull Request: https://projects.blender.org/blender/blender/pulls/114632
