Here are the known todos remaining

BMesh Todos

Update: We now have a bug tracker for BMesh bugs so while this page wont be removed, the tracker should prove more useful in tracking each issue and assigning issues to developers.

See: http://projects.blender.org/tracker/?atid=516&group_id=9&func=browse

--Ideasman42 12:50, 31 August 2011 (CEST)

Uv Unwrapping

stretch is shown wrong for area
stretch is not shown for angle
island select selects all, instead of just the island of interest
UVs > Show/Hide Faces (the only thing it does is deselecting)
UVs > Snap > Selected to Adjacent Unselected
Smart UV Project
Lightmap Pack
New UV Maps are called "Face Texture". This is not what they are.. they are UV Maps
Follow Active Quads (always give the error "Active face not selected." even though it's)
Suzanne Mesh unwrap has a few vertices in wrong place (very long spikes)

Animating

add 1 shapekey to a "heavy mesh" and playback speed crawls ZanQdo

Compositing

BMESH_TODOs In Code

bmesh/intern/bmesh_construct.c: does BM_Copy_Attributes need special handling for hide flags?
bmesh/intern/bmesh_eulers.c: make separate debug levels of validation
bmesh/intern/bmesh_eulers.c: add UnglueFaceRegionMakeVert and GlueFaceRegionKillVert eulers
bmesh/intern/bmesh_marking.c: BM_editselection_plane missing some special handling of based on edge lengths of faces
bmesh/intern/bmesh_mods.c: check KV valence in bmesh_collapse_vert
bmesh/intern/bmesh_newcore.c: reinsert validation code in bmesh_loop_reverse
bmesh/intern/bmesh_operators.c: investigate not freeing flag until all operators have executed (performance optimization)
bmesh/intern/bmesh_polygon.c: add tesselator to create BMTriangles from copied faces
bmesh/intern/bmesh_polygon.c: add function that checks for and flags degenerate faces
bmesh/intern/bmesh_queries.c: move BM_Face_Sharededges to struct and wrap
bmesh/intern/bmesh_walkers.c: add searchmask filtering
bmesh/intern/createops.c: some fix to edge_weight_path needed
bmesh/intern/subdivideop.c: clip if needed by mirror modifier
blenkernel/BKE_customdata.h: CustomData_update_typemap shouldn't be public, but needed in readfile
blenkernel/intern/bvhutils.c: bvhtree_from_mesh_faces needs work
blenkernel/intern/customdata.c: layerInterp_mdisps needs to actually interpolate, and layerValidate_mdisps should do something too
blenkernel/intern/editderivedbmesh.c: bmDM_drawMappedFaces should pay attention to useColors and setMaterial parameters, and similar for bmDM_drawMappedFacesGLSL
blenkernel/intern/editderivedbmesh.c: bmDM_copyFaceArray has a hack that should be fixed
blenkernel/intern/editderivedbmesh.c: bmDM_getFaceDataArray still needs to get tface data derived from loops
blenkernel/intern/mesh.c: convert_mfaces_to_mpolys: deal with fgons
blenkernel/intern/multires.c: need to update multires data after topology change
blenkernel/intern/subsurf_ccg.c: implement ss_sync_from_uv
blenkernel/intern/BME_conversions.c: BME_bmesh_to_derivedmesh should add in mloops and mpolys as well
blenlib/BLI_smallhash.h: want to use ABS(key) but MSVC throws error
blenlib/intern/scanfill.c: memory alloc issue (optimization?) in new_mem_element
blenlib/intern/scanfill.c: BLI_edgefill always checks for shortest diag in quad
editors/armature/editarmature.c: envelope_bone_weighting should do something when dgroupflip; add_verts_to_dgroups needs some work
editors/armature/meshlaplacian.c: heat_bone_weighting should do something when dgroupflip
editors/include/ED_mesh.h: declare EM_cache_x_mirror_vert
editors/mesh/bmesh_tools.c: do_smooth_vertex needs to handle x-axis editing properly
editors/mesh/bmesh_tools.c: make shape_propagate into a bmop, and fix tagging there of mesh objects that share the data
editors/mesh/bmesh_tools.c: make blend_from_shape_exec a bmop
editors/mesh/bmesh_tools.c: select_axis_exec needs a way to select on an arbitrary axis
editors/mesh/bmeshutils.c: smarter code in EDBM_MakeEditBMesh when no polys present yet has faces
editors/mesh/bmeshutils.c: implement EDBM_deselect_flush
editors/mesh/bmesh_select.c: fix mouse_mesh_shortest_path
editors/mesh/bmesh_select.c: implement select and deselect nth tools
editors/mesh/editbmesh_add.c: change primitive plane and cube to have side sqrt(2)
editors/mesh/editbmesh_bvh.c: implement BMBVH_VertVisible
editors/mesh/editface.c: paintface_deselect_all_visible needs to call object_facesel_flush_dm
editors/mesh/mesh_data.c: implement copy_editface_active_customdata
editors/mesh/mesh_intern.h: move labda_PdistVL2Dfl to math_geometry.c
editors/mesh/mesh_tools.c: use ME_EDIT_MIRROR_TOPO at appropriate places
editors/mesh/mesh_tools.c: implement mesh_separate_material
editors/mesh/mesh_tools.c: implement split_mesh
editors/mesh/mesh_tools.c: implement xsortvert_flag
editors/object/object_bake.c: implement do_multires_bake
editors/object/object_bake.c: implement get_ccgdm_data
editors/object/object_bake.c: implement apply_heights_callback
editors/object/object_bake.c: implement apply_tangmat_callback
editors/object/object_edit.c: need to do more when exiting edit mode and restore mode includes OB_MODE_WEIGHT_PAINT
editors/object/object_shapekey.c: object_shape_key_mirror needs work
editors/object/object_vgroup.c: implement ED_vgroup_mirror for mesh objects
editors/physics/particle_edit.c: PE_mirror_x should call mesh_get_x_mirror_faces
editors/sculpt_paint/paint_vertex.c: wpaint_fill should call mesh_get_x_mirror_vert
editors/sculpt_paint/paint_vertex.c: implement weight_sample_invoke
editors/sculpt_paint/paint_vertex.c: implement weight_paint_sample_enum_itemf
editors/sculpt_paint/paint_vertex.c: do_weight_paint_vertex should call mesh_get_x_mirror_vert
editors/sculpt_paint/paint_vertex.c: set_wpaint needs work
editors/transform/transform.c: createSlideVerts may be doing something evil
editors/transform/transform.c: projectSVData needs good way to only selectively interpolate vertex data
editors/transform/transform.c: freeSlideVerts should do something when ME_DRAWEXTRA_EDGELEN
editors/transform/transform_conversions.c: createTransEditVerts needs work for mirror
editors/transform/transform_conversions.c: special_aftertrans_update needs to create mesh_octree_table
editors/transform/transform_snap.c: peelObjects needs work when OB_DUPLI
editors/uvedit/uvedit_draw.c: fix SI_UVDT_STRETCH_ANGLE case in draw_uvs_stretch
editors/util/ed_util.c: ED_editors_exit should do something with mesh_octree_table and mesh_mirrtopo_table
editors/uvedit/uvedit_ops.c: fix poly_uv_area
editors/uvedit/uvedit_ops.c: implement s, t, u tools in weld_align_uv
makesrna/intern/rna_mesh.c: implement some properties in rna_def_mtexpoly
modifiers/intern/MOD_bevel.c: implement bevel modifier

Completed Tasks

This list the tasks marked as "DONE", so people can view what are already done, and to help Devs to keep things in order, since for now there's no Bug Tracker for the Bmesh Branch.

Crashers

done
Crash when using the Mesh Deform modifier and tab into Edit Mode. The smaller cube has the Mesh Deform modifier, the bigger cube is set as the Object in the modifier. Blend file, select the big cube, tab into Edit Mode and Blender crashes.
done
Crash when dissolving vertices, more info in this post on BlenderArtists.
done
When Proportional Editing is either on Enable or Connected in the UV/Image Editor and you try to Scale or Rotate Blender crashes. Blend file, when opened, press S or R in the UV/Image editor.
done
Crash when using Select > Unlink Selection in the UV/Image Editor. Seems to happen every time you even try it. Blend file, use from the menus: Select > Unlink Selection or press ALT+L.
done
In the UV/Image Editor when using any of the tools under UVs > Weld/Align. Under normal use (selecting more then one vertices) the tools work sometimes, but occasionally crashes Blender. When selecting just one vertices in the UV Editor and using one of the tools it seems to always result in a crash. Blend file, select a vertices and use one of the tools under UVs > Weld/Align.
done
Crash when opening a file http://www.pasteall.org/21698 ZanQdo
done
Renaming a vertex color segfauls ZanQdo
- Can't reproduce Joeedh 01:08, 26 May 2011 (CEST)
- It still happens consistently here on lin64. BTW it was vertex color, not vertex group. my mistake! ZanQdo 4 Jun 2011 (CEST)
done
Crash when entering to Weight Paint mode (ZanQdo)
- Can't reproduce Joeedh 01:08, 26 May 2011 (CEST)
- Seems to work fine now ZanQdo 4 Jun 2011 (CEST)
done
Crash on this file with animated Weight Group http://www.pasteall.org/blend/6512 ZanQdo
- Seems to work fine now ZanQdo 4 Jun 2011 (CEST)
done
In the UV/Image Editor using Select > Select Linked (CTRL+L). A little bit inconsistent results, most of the times it doesn't crash, but eventually it will happen. The console writes out the message "Memoryblock UvLinkStack: end corrupt" which seems to be related to it. The same blend file as in the "Weld/Align"-crasher should work, select a vertices and run the Select > Select Linked (or press CTRL+L) a few times (5-10 maybe).
done
Crash: apply mirror to http://www.pasteall.org/blend/8029 (notice faces disappear), then apply the mirror, then delete the selected vertex (X/Vertices) in http://www.pasteall.org/blend/8030 (reported by ville)
done
Crash: X/Collapse, move an edge http://www.pasteall.org/blend/7211 ZanQdo
done
Crash: default cube scene, edit mode, control-h, "hook to new object", exit edit mode (reported by ville)
done
edge slide crash when more than one edge selected http://www.pasteall.org/blend/8239; also, why does only one edge slide?
done
Make face other problems: makes crossed edges sometimes (see http://www.screenr.com/iJgs), http://www.pasteall.org/blend/8367.
done
collapse edge crashes on subsurf'd cube when 'Apply modifier to edit cage' active. http://www.pasteall.org/blend/8389
done
export obj (bmesh version) crashes if object has no materials (delete default cube, add another one)
done
crash when: extrude a vertex, hit ctrl+R

Modifiers

done
Solidify modifier: Inner/Outer crease doesn't work correctly. Compare to trunk: http://pasteall.org/blend/6509 (ZanQdo)
done
Edge split modifier in edit mode with Editing Cage applied hides all cage geometry. Compare to trunk: http://pasteall.org/blend/6510 (ZanQdo)
done
Boolean Modifier leaves only vertices
done
Decimate modifier leave only vertices

Mesh Edit

done
knife tool in user prefs, input, has entry with no name, tools not accessible (i.e. cannot use knife) [Bmesh branch of Blender 2.5, compiled to revision 36445. http://graphicall.org/74]
done
Edge Length and Face Area in the Properties side panel does nothing. There is no option for Face Angle
done
Knife doesn't work correctly in "ortho" views
done
knife doesn't snap to vertical edge under some circumstances (zooming in a lot on default cube, for instance)
done
Select > Edge Ring
done
Select > Edge Loop (ALT+RMB does however work)
done
Select > Loose Verts/Edges
done
Select > Non Manifold (Partially works. If you've made a hole in the mesh the edges making the hole should be selected)
done
Select > Quads
- Now there is a general 'Select by Number of Vertices' where you can select faces with number of vertices Equal, Less Than, or Greater Than a given number
done
Select > Triangles
done
Spin
done
Screw
done
Meshes added through current python scripts don't have any faces (add_mesh_torus.py, Addon: Add Pipe joints)
done
subsurface after subdividing an edge doesn't display correctly. [Bmesh branch of Blender 2.5, compiled to revision 36445. http://graphicall.org/74]; other general problems of subsurface display updates while in edit mode, e.g. http://www.pasteall.org/pic/16546 (also, look into render problems there)* Done?? ~~loop to region/region to loop~~
done
Select > Every N Number of Verts
done
Faces flash once when doing extrude
done
Face center dot disappears when doing mesh editing
Done?? ~~Add Circle and Add Cylynder don't work~~

Dev:Source/Development/Todo/BMesh

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