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`BMO_iter_as_array()` may fill less items than requested in given array,
so we have to update number of items to work on from its returned value,
otherwise code might try to use uninitialized memory.
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Use for calculating the angle between 2 directions on an axis.
Also signed version and normalized plane projection,
use when input is normalized.
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Edge collapse was using bounding box center as the point to collapse to.
When collapsing multiple adjacent edges together, this caused
inconsistencies in placement of the collapsed point, depending on the
orientation of the edges in relation to the space axis.
This makes edge collapse use the mean point instead.
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faces.
This was requested by script writers. Especially needed if beveling
wire edges with vertex_only.
Should be backward compatible as just adds two new keys to returned
dict in python ('edges' and 'verts').
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Don't assume UV layer exist.
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no functional changes.
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Use expanded names for bmesh primitive operations
(urmv jvke semv jfke).
Use 'bmesh_kernel_' prefix,
these functions aren't intended for wide use so favor readability.
Remove BM_face_vert_separate,
it wasn't used and only skipped step of finding correct loop of face.
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Fast-path for bmesh split operator which duplicates and deletes.
Use when only separating faces, currently used by the intersect tool.
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Instead, add BM_verts_sort_radial_plane
and use regular creation API.
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Also rename face vars (the faces aren't temp),
and quiet old-style-definition warning.
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Just return the face or NULL, like BM_edge_exists(),
Also for BM_face_exists_overlap & bm_face_exists_tri_from_loop_vert.
No functional changes.
Old code did some partial overlap checks where this made some sense,
but it's since been removed.
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Pass in loops instead of edge & faces.
Nearly all callers have the loop-pairs to pass in.
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Not sure where this comes from, but code was converting BMEdge* to BMVert* to check oflags,
i.e. not accessing correct memory.
Regression, to be backported to 2.78a.
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No need to declare new iterator for second loop.
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Fixes T47488 and T47478.
Reviewed By: brecht
Differential Revision: https://developer.blender.org/D2224
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Also resolves: T34294
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Saves 8 bytes per vert/edge/face.
Gives overall ~20-25% memory saving for dyntopo sculpting
and modifiers that use BMesh.
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BMO iterator would loop over removed faces.
Recent changes to mempool FREEWORD size exposed this bug.
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Created double faces, leaked memory.
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Auto-merge caused all edges between selected vertices to be selected.
This only makes sense in vertex-select-mode.
Correct edge-flag merging code, which now merges flags from multiple edges.
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In nearly all cases this isn't needed.
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Was showing an error message,
now dissolve the faces that and delimit at non-manifold boundaries.
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When loops are planar to eachother, initialize their winding based on surrounding geometry.
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Now CD_SHAPEKEY_INDEX customdata is stored in edit-mode when hooks and vertex parents are used.
This also fixes a bug where undo would loose key-index data.
Move to structs for BM_mesh_bm_to/from_me to avoid passing many argument, which mostly aren't used.
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D1912 by @samb96
Change the starting point of the UV sphere so that it is aligned with the circle, cylinder, and cone primitives.
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Symmetrize was unusable with multi-res data,
add an option for the bmesh operator not to flip the multi-res depth.
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This is an alternative to passing a copy callback which is some times inconvenient.
Instead the caller can write to the key - needed when the key is duplicated memory.
Allows for minor optimization in ghash/gset use.
Also add BLI_gset_ensure_p_ex
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Changes to remove doubles face creation,
Recent change to remove doubles broke when the new faces already existed (rare occurrence),
however theres no point to return an existing double face.
Now check if the face exists before creating it.
Other changes:
- avoid 2x hash lookups on all mapped verts.
- fill in the vert array instead of calculating from edges.
- remove inefficient search of entire edge-array before adding to it.
(flag verts to ensure they're not used multiple times).
- move logic for transfusing edge-flags to edge creation.
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Weld verts now keeps original faces so callers don't need to keep track of newly created face data.
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Differential Revision: https://developer.blender.org/D1662
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`bmo_create_grid_exec` was not tagging created vertices with `MARK_VERT`, which seems
mandatory to get them selected? This sounds a bit hacky/odd to me, but that's what
all other primitive funcs do...
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