bmesh_decimate.hh File Reference

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Functions
void	BM_mesh_decimate_collapse (BMesh *bm, float factor, float *vweights, float vweight_factor, bool do_triangulate, int symmetry_axis, float symmetry_eps)
	BM_mesh_decimate.
void	BM_mesh_decimate_unsubdivide_ex (BMesh *bm, int iterations, bool tag_only)
void	BM_mesh_decimate_unsubdivide (BMesh *bm, int iterations)
void	BM_mesh_decimate_dissolve_ex (BMesh *bm, float angle_limit, bool do_dissolve_boundaries, BMO_Delimit delimit, BMVert **vinput_arr, int vinput_len, BMEdge **einput_arr, int einput_len, short oflag_out)
void	BM_mesh_decimate_dissolve (BMesh *bm, float angle_limit, bool do_dissolve_boundaries, const BMO_Delimit delimit)

Function Documentation

BM_mesh_decimate_collapse()

void BM_mesh_decimate_collapse	(	BMesh *	bm,
		float	factor,
		float *	vweights,
		float	vweight_factor,
		bool	do_triangulate,
		int	symmetry_axis,
		float	symmetry_eps )

BM_mesh_decimate.

Parameters

bm	The mesh
factor	face count multiplier [0 - 1]
vweights	Optional array of vertex aligned weights [0 - 1], a vertex group is the usual source for this.
symmetry_axis	Axis of symmetry, -1 to disable mirror decimate.
symmetry_eps	Threshold when matching mirror verts.

Note

The caller is responsible for recalculating face and vertex normals.

• Vertex normals are maintained while decimating, although they won't necessarily match the final recalculated normals.
• Face normals are not maintained at all.

Definition at line 1277 of file bmesh_decimate_collapse.cc.

References BLI_assert, BLI_heap_free(), BLI_heap_is_empty(), BLI_heap_new_ex(), BLI_heap_node_ptr(), BLI_heap_pop_min(), BLI_heap_remove(), BLI_heap_top_value(), bm, BM_ALL, bm_decim_build_edge_cost(), bm_decim_build_quadrics(), bm_decim_calc_target_co_fl(), bm_decim_edge_collapse(), bm_decim_invalid_edge_cost_single(), bm_decim_triangulate_begin(), bm_decim_triangulate_end(), bm_edge_collapse_is_degenerate_flip(), bm_edge_collapse_is_degenerate_topology(), BM_edge_share_vert_check(), bm_edge_symmetry_map(), BM_elem_index_get, CD_DO_EDGE, CD_DO_LOOP, CD_DO_VERT, COST_INVALID, CustomData_has_interp(), CustomData_has_math(), e, BMesh::edata, BMesh::elem_index_dirty, invalidate(), BMesh::ldata, LIKELY, MEM_callocN, MEM_freeN(), MEM_mallocN, BMesh::totedge, BMesh::totface, BMesh::totvert, UNLIKELY, UNUSED_VARS, USE_SYMMETRY, and BMesh::vdata.

Referenced by edbm_decimate_exec(), and modify_mesh().

BM_mesh_decimate_dissolve()

void BM_mesh_decimate_dissolve	(	BMesh *	bm,
		float	angle_limit,
		bool	do_dissolve_boundaries,
		const BMO_Delimit	delimit )

Definition at line 542 of file bmesh_decimate_dissolve.cc.

References bm, BM_EDGES_OF_MESH, BM_iter_as_arrayN(), BM_mesh_decimate_dissolve_ex(), BM_VERTS_OF_MESH, and MEM_freeN().

Referenced by modify_mesh().

BM_mesh_decimate_dissolve_ex()

void BM_mesh_decimate_dissolve_ex	(	BMesh *	bm,
		float	angle_limit,
		bool	do_dissolve_boundaries,
		BMO_Delimit	delimit,
		BMVert **	vinput_arr,
		int	vinput_len,
		BMEdge **	einput_arr,
		int	einput_len,
		short	oflag_out )

Definition at line 280 of file bmesh_decimate_dissolve.cc.

References BLI_heap_free(), BLI_heap_insert(), BLI_heap_is_empty(), BLI_heap_new_ex(), BLI_heap_node_ptr(), BLI_heap_node_value(), BLI_heap_node_value_update(), BLI_heap_remove(), BLI_heap_top(), bm, BM_EDGE, bm_edge_calc_dissolve_error(), BM_edge_is_manifold(), BM_edge_is_wire(), BM_edge_kill(), BM_EDGES_OF_MESH, BM_elem_flag_set, BM_elem_flag_test, BM_elem_index_get, BM_elem_index_set, BM_ELEM_TAG, BM_FACE_FIRST_LOOP, BM_face_normal_update(), BM_faces_join_pair(), BM_ITER_ELEM, BM_ITER_MESH, BM_ITER_MESH_INDEX, BM_mesh_elem_index_ensure(), BM_VERT, BM_vert_collapse_edge(), bm_vert_collapse_is_degenerate(), bm_vert_edge_face_angle(), BM_vert_is_edge_pair(), BM_vert_kill(), BM_VERTS_OF_EDGE, BM_VERTS_OF_MESH, BMO_DELIM_UV, BMO_face_flag_enable, DelimitData::cd_loop_offset, DelimitData::cd_loop_offset_end, DelimitData::cd_loop_size, DelimitData::cd_loop_type, CD_PROP_FLOAT2, copy_vn_i(), cosf, COST_INVALID, CustomData_get_n_offset(), CustomData_number_of_layers(), CustomData_sizeof(), BMLoop::e, BMVert::e, e, BMesh::elem_index_dirty, BMLoop::f, BMEdge::l, BMesh::ldata, LIKELY, max_ii(), MEM_freeN(), MEM_mallocN, BMLoop::next, BMLoop::prev, BMLoop::radial_next, BMesh::totedge, BMesh::totvert, UNLIKELY, USE_DEGENERATE_CHECK, BMLoop::v, v, BMEdge::v1, BMEdge::v2, and v2.

Referenced by BM_mesh_decimate_dissolve(), and bmo_dissolve_limit_exec().

BM_mesh_decimate_unsubdivide()

void BM_mesh_decimate_unsubdivide	(	BMesh *	bm,
		int	iterations )

Definition at line 335 of file bmesh_decimate_unsubdivide.cc.

References bm, and BM_mesh_decimate_unsubdivide_ex().

Referenced by modify_mesh().

BM_mesh_decimate_unsubdivide_ex()

void BM_mesh_decimate_unsubdivide_ex	(	BMesh *	bm,
		int	iterations,
		bool	tag_only )

Parameters

tag_only

so we can call this from an operator.

Definition at line 158 of file bmesh_decimate_unsubdivide.cc.

References BLI_assert, bm, BM_edge_other_vert(), BM_EDGES_OF_VERT, BM_elem_flag_enable, BM_elem_flag_test, BM_elem_index_get, BM_elem_index_set, BM_ELEM_TAG, BM_ITER_ELEM, BM_ITER_MESH, BM_ITER_MESH_MUTABLE, BM_VERT, bm_vert_dissolve_fan(), bm_vert_dissolve_fan_test(), BM_VERTS_OF_MESH, BMO_vert_flag_enable, BMO_vert_flag_test, BMW_begin(), BMW_BREADTH_FIRST, BMW_CONNECTED_VERTEX, BMW_current_depth(), BMW_end(), BMW_FLAG_NOP, BMW_init(), BMW_MASK_NOP, BMW_NIL_LAY, BMW_step(), BMVert::e, e, BMesh::elem_index_dirty, MEM_freeN(), MEM_mallocN, BMWalker::order, BMesh::totvert, v, VERT_INDEX_DO_COLLAPSE, VERT_INDEX_IGNORE, and VERT_INDEX_INIT.

Referenced by BM_mesh_decimate_unsubdivide(), and bmo_unsubdivide_exec().