diff options
| -rw-r--r-- | release/scripts/startup/bl_operators/mesh.py | 50 | ||||
| -rw-r--r-- | release/scripts/startup/bl_ui/space_view3d_toolbar.py | 1 |
2 files changed, 51 insertions, 0 deletions
diff --git a/release/scripts/startup/bl_operators/mesh.py b/release/scripts/startup/bl_operators/mesh.py index be74f8dbc0e..58eab5436e6 100644 --- a/release/scripts/startup/bl_operators/mesh.py +++ b/release/scripts/startup/bl_operators/mesh.py @@ -198,3 +198,53 @@ class MeshSelectPrev(Operator): bmesh.update_edit_mesh(me, False) return {'FINISHED'} + + +# XXX This is hackish (going forth and back from Object mode...), to be redone once we have proper support of +# custom normals in BMesh/edit mode. +class MehsSetNormalsFromFaces(Operator): + """Set the custom vertex normals from the selected faces ones""" + bl_idname = "mesh.set_normals_from_faces" + bl_label = "Set Normals From Faces" + bl_options = {'REGISTER', 'UNDO'} + + @classmethod + def poll(cls, context): + return (context.mode == 'EDIT_MESH' and context.edit_object.data.polygons) + + def execute(self, context): + import mathutils + + bpy.ops.object.mode_set(mode='OBJECT') + obj = context.active_object + me = obj.data + + v2nors = {} + for p in me.polygons: + if not p.select: + continue + for lidx, vidx in zip(p.loop_indices, p.vertices): + assert(me.loops[lidx].vertex_index == vidx) + v2nors.setdefault(vidx, []).append(p.normal) + + for nors in v2nors.values(): + nors[:] = [sum(nors, mathutils.Vector((0, 0, 0))).normalized()] + + if not me.has_custom_normals: + me.create_normals_split() + me.calc_normals_split() + + normals = [] + for l in me.loops: + nor = v2nors.get(l.vertex_index, [None])[0] + if nor is None: + nor = l.normal + normals.append(nor.to_tuple()) + + me.normals_split_custom_set(normals) + + me.free_normals_split() + bpy.ops.object.mode_set(mode='EDIT') + + return {'FINISHED'} + diff --git a/release/scripts/startup/bl_ui/space_view3d_toolbar.py b/release/scripts/startup/bl_ui/space_view3d_toolbar.py index 8019c8d2f34..f97e2d5b2d1 100644 --- a/release/scripts/startup/bl_ui/space_view3d_toolbar.py +++ b/release/scripts/startup/bl_ui/space_view3d_toolbar.py @@ -431,6 +431,7 @@ class VIEW3D_PT_tools_shading(View3DPanel, Panel): col.label(text="Normals:") col.operator("mesh.normals_make_consistent", text="Recalculate") col.operator("mesh.flip_normals", text="Flip Direction") + col.operator("mesh.set_normals_from_faces", text="Set From Faces") class VIEW3D_PT_tools_uvs(View3DPanel, Panel): |