Negative indices that remained negative after adding the sequence length
caused incorrect slicing.
With the default scene for example:
bpy.context.scene.objects[-4:2]
Gave a different result to:
tuple(bpy.context.scene.objects)[-4:2]
Clamp indices above zero so loops that step forward works as intended.
Using BMesh operators through the edit-mesh API created a full copy
of the mesh so it was possible to restore the mesh in case
one of the operators raised an error.
Remove support for automatic backup/restore from the EDBM_op_* API's
as it adds significant overhead and was rarely used.
Operators that need this can use the BMBackup API to backup & restore
the mesh in case of failure.
Add warning levels to BMO_error_raise so operators can report problems
without it being interpreted as a request to cancel the operation.
For high-poly meshes creating and freeing a full copy is an expensive
operation, removing this gives a speedup of ~1.77x for most operators
except for "connect_verts" / "connect_vert_pair"
which still uses this functionality.
Avoid computationally expensive copying operations
when only some settings have been modified.
This is done by adding support for updating parameters
without tagging for copy-on-write.
Currently only mesh data blocks are supported,
other data-blocks can be added individually.
This prepares for changing values such as edit-mesh auto-smooth angle
in edit-mode without duplicating all mesh-data.
The benefit will only be seen when the user interface no longer tags
all ID's for copy on write updates.
ID_RECALC_GEOMETRY_ALL_MODES has been added to support situations
where non edit-mode geometry is modified in edit-mode.
While this isn't something user are likely to do,
Python scripts may change the underlying mesh.
Reviewed By: sergey
Ref D11377
This patch fixes many minor spelling mistakes, all in comments or
console output. Mostly contractions like can't, won't, don't, its/it's,
etc.
Differential Revision: https://developer.blender.org/D11663
Reviewed by Harley Acheson
Rename function EDBM_update_generic to EDBM_update, use a parameters
argument for better readability.
Also add calc_normals argument, which will have benefits when
calculating normals and tessellation together is optimized.
2 sided faces aren't supported and will cause problems in many areas
of Blender's code.
Removing (implied) support for faces with fewer than 3 sides
means the total number of triangles is known ahead of time.
This simplifies adding support for multi-threading and partial updates
to an existing tessellation - as the face and loop indices can be used
to access the range of triangles associated with a face.
Also correct outdated comments.
The deform parameter of the Bmesh from_object method is deprecated,
always assumed to be True, and will be removed in version 3.0.
That is because the cases where it is False don't work correctly and are
subject to memory leaks. One of the symptoms of the incorrect behavior
is the application of constructive modifiers twice if the input object
is an evaluated one, as demonstrated in D10053.
Reviewed By: Brecht
Differential Revision: https://developer.blender.org/D10086
The Bmesh from_object method applies modifiers twice when the input
deform is enabled and the input depsgraph is a render one.
The evaluated object already have modifiers applied, and
mesh_create_eval_final() applies modifiers again. To fix this, the
BKE_mesh_new_from_object() function is used instead.
Reviewed By: Brecht
Differential Revision: https://developer.blender.org/D10053
While `tp_print` was deprecated, Python 3.8+ uses this for
'tp_vectorcall_offset' which wasn't stated in the comment from
efd71aad4f.
Instead of suppressing clang-tidy, use preprocessor a check since
this properly represents the difference between Python versions.
Changes:
* Brought back bmesh_mdisps_space_set, written from scratch using
subdiv api, not ccg.
* Wrote a function to smooth multigres grids from within bmesh. I might
not need it; unless anyone thinks of a use for it I'll go ahead and
delete it.
Todo:
* Purge code of all usages of CCG for multires.
This commit:
* Wrote a utility function to dump multires displacements into a (new)
scene object.
* Consequently, I now know that the CCG_based multires code is not
compatible with the OpenSubdiv based code. The former produces gaps
between grids when converting displacements to object space.
