When there is an odd number of segments, bevel has an ambiguous
choice as to which side face to use to copy face attributes from
and to use for UV (and other loops that have math function) interpolation.
We used to make choice arbitrarily, which led to visually inconsistent
results. Now there is tie-breaking code, face with lexicographic lowest
value in vector with these elements:
(1) connected component (in math-layer space) id
(2) selected (0) vs unselected (1)
(3) material index
(4,5,6): z,x,y components of face center, in that order.
This will allow the easier addition of a constant radius mode in the
future and some changes in the UI to mirror the recent similar change
from "Only Vertices" to the "Affect" enum.
This mode is like Percent, but measures absolute distance along
adjacent edges instead of a percentage.
So, for example, if you use this mode with 2 segments and profile=1,
you will see the length that the bevel moves along unbeveled edges
between beveled ones will match the value specified.
Many users seem to expect this behavior, even though it means the
bevel width is uneven, so this option is for them.
Custom Loop Normals are normally encoded relative to the default
normals, similar to normal maps, allowing them to naturally follow
mesh deformations. Changes to mesh topology however often result
in nonsensical effects that are not desired.
The Remove Doubles operation especially (now known as Merge By
Distance) is intended as a purely topological operation, and
definitely should not change the vector of the custom normals.
This patch implements that behavior by converting the relative
encoding into an absolute vector layer for the duration of the
operation. It also modifies other Merge types in this way for
consistency, the Rip operator as their inverse counterpart;
and also Delete, Dissolve, Connect Path and Knife operators
as other examples more related to topology than shape.
On the technical side, this ports mesh_normals_loop_custom_set
to BMesh, and then uses a temporary Custom Data layer to store
the normals as vectors for the duration of the above mentioned
operations. When the normals are converted back to custom data,
the caller can choose whether to mark edges as sharp to preserve
distinct normals, or just average them instead. All but Remove
Doubles choose to average for now.
Differential Revision: https://developer.blender.org/D4994
This is related to T76659.
This just renames data type names to `CD_PROP_STRING`, `CD_PROP_FLOAT`
and `CD_PROP_INT32`. It makes them a bit more specific and removes
unnecessary abbreviations.
Reviewers: brecht
Differential Revision: https://developer.blender.org/D7980
Using remove double wasn't reliable as the matrix argument
could cause vertices to be further apart than the threshold allowed for.
This happened when adding cones using the new add tool.
This resolves a performance regression in 2.8x where every edit-mode
update performed an edit-mesh to mesh conversion.
Now the conversion will be lazily initialized if/when it's required.
New BKE_mesh_wrapper_* functions abstract over mesh data access.
Currently only edit-mesh and regular meshes are supported.
In the future sub-surface meshes may be supported too.
The `BM_mesh_bm_to_me()` function copies shape keys from the BMesh to
the Mesh. However, it tries to copy the same number of shape keys as are
defined on the target mesh. Since the target mesh does not necessarily
have the same number of shape keys as the BMesh, this would crash if the
target Mesh has more.
Found while performing some tests for {D7785}.
Differential Revision: https://developer.blender.org/D7818
Reviewed by: brecht
Don't use the cube corner special case when the offsets are different
for the three edges involved. The generic VMesh for this situation isn't
perfect, but it's much better than a failed cube corner VMesh.
Tests pass.
Don't use the cube corner special case when the offsets are different
for the three edges involved. The generic VMesh for this situation isn't
perfect, but it's much better than a failed cube corner VMesh.
Tests pass.
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
Was flipping around the 0-1 range, now (optionally) flip around each tile.
Also added this option for BMesh bmo_mirror.
Reviewed By: campbellbarton
Maniphest Tasks: T75793
Differential Revision: https://developer.blender.org/D7460
Starting select linked failed when the selected vertex or edge
was it's self delimiting.
Support using these elements for linked select
as long as they're part of an isolated selection.
Note this only changes cases where the variable was declared inside
the for loop. To handle it outside as well is a different challenge.
Differential Revision: https://developer.blender.org/D7320
