diff options
Diffstat (limited to 'source/blender/blenkernel/intern/subdiv_converter_mesh.c')
| -rw-r--r-- | source/blender/blenkernel/intern/subdiv_converter_mesh.c | 330 |
1 files changed, 246 insertions, 84 deletions
diff --git a/source/blender/blenkernel/intern/subdiv_converter_mesh.c b/source/blender/blenkernel/intern/subdiv_converter_mesh.c index 1a2c26b3564..50143dd46e1 100644 --- a/source/blender/blenkernel/intern/subdiv_converter_mesh.c +++ b/source/blender/blenkernel/intern/subdiv_converter_mesh.c @@ -31,6 +31,7 @@ #include "DNA_meshdata_types.h" #include "BLI_utildefines.h" +#include "BLI_bitmap.h" #include "BLI_math_vector.h" #include "BKE_customdata.h" @@ -68,6 +69,26 @@ typedef struct ConverterStorage { */ int *loop_uv_indices; int num_uv_coordinates; + + /* Indexed by coarse mesh elements, gives index of corresponding element + * with ignoring all non-manifold entities. + * + * NOTE: This isn't strictly speaking manifold, this is more like non-loose + * geometry index. As in, index of element as if there were no loose edges + * or vertices in the mesh. + */ + int *manifold_vertex_index; + int *manifold_edge_index; + /* Indexed by vertex index from mesh, corresponds to whether this vertex has + * infinite sharpness due to non-manifol topology. + */ + BLI_bitmap *infinite_sharp_vertices_map; + /* Reverse mapping to above. */ + int *manifold_vertex_index_reverse; + int *manifold_edge_index_reverse; + /* Number of non-loose elements. */ + int num_manifold_vertices; + int num_manifold_edges; } ConverterStorage; static OpenSubdiv_SchemeType get_scheme_type( @@ -98,70 +119,81 @@ static int get_num_faces(const OpenSubdiv_Converter *converter) static int get_num_edges(const OpenSubdiv_Converter *converter) { ConverterStorage *storage = converter->user_data; - return storage->mesh->totedge; + return storage->num_manifold_edges; } -static int get_num_verts(const OpenSubdiv_Converter *converter) +static int get_num_vertices(const OpenSubdiv_Converter *converter) { ConverterStorage *storage = converter->user_data; - return storage->mesh->totvert; + return storage->num_manifold_vertices; } -static int get_num_face_verts(const OpenSubdiv_Converter *converter, int face) +static int get_num_face_vertices(const OpenSubdiv_Converter *converter, + int manifold_face_index) { ConverterStorage *storage = converter->user_data; - return storage->mesh->mpoly[face].totloop; + return storage->mesh->mpoly[manifold_face_index].totloop; } -static void get_face_verts(const OpenSubdiv_Converter *converter, - int face, - int *face_verts) +static void get_face_vertices(const OpenSubdiv_Converter *converter, + int manifold_face_index, + int *manifold_face_vertices) { ConverterStorage *storage = converter->user_data; - const MPoly *mp = &storage->mesh->mpoly[face]; + const MPoly *poly = &storage->mesh->mpoly[manifold_face_index]; const MLoop *mloop = storage->mesh->mloop; - for (int loop = 0; loop < mp->totloop; loop++) { - face_verts[loop] = mloop[mp->loopstart + loop].v; + for (int corner = 0; corner < poly->totloop; corner++) { + manifold_face_vertices[corner] = storage->manifold_vertex_index[ + mloop[poly->loopstart + corner].v]; } } static void get_face_edges(const OpenSubdiv_Converter *converter, - int face, - int *face_edges) + int manifold_face_index, + int *manifold_face_edges) { ConverterStorage *storage = converter->user_data; - const MPoly *mp = &storage->mesh->mpoly[face]; + const MPoly *poly = &storage->mesh->mpoly[manifold_face_index]; const MLoop *mloop = storage->mesh->mloop; - for (int loop = 0; loop < mp->totloop; loop++) { - face_edges[loop] = mloop[mp->loopstart + loop].e; + for (int corner = 0; corner < poly->totloop; corner++) { + manifold_face_edges[corner] = + storage->manifold_edge_index[mloop[poly->loopstart + corner].e]; } } -static void get_edge_verts(const OpenSubdiv_Converter *converter, - int edge, - int *edge_verts) +static void get_edge_vertices(const OpenSubdiv_Converter *converter, + int manifold_edge_index, + int *manifold_edge_vertices) { ConverterStorage *storage = converter->user_data; - const MEdge *me = &storage->mesh->medge[edge]; - edge_verts[0] = me->v1; - edge_verts[1] = me->v2; + const int edge_index = + storage->manifold_edge_index_reverse[manifold_edge_index]; + const MEdge *edge = &storage->mesh->medge[edge_index]; + manifold_edge_vertices[0] = storage->manifold_vertex_index[edge->v1]; + manifold_edge_vertices[1] = storage->manifold_vertex_index[edge->v2]; } -static int get_num_edge_faces(const OpenSubdiv_Converter *converter, int edge) +static int get_num_edge_faces(const OpenSubdiv_Converter *converter, + int manifold_edge_index) { ConverterStorage *storage = converter->user_data; + const int edge_index = + storage->manifold_edge_index_reverse[manifold_edge_index]; #ifdef USE_MESH_ELEMENT_MAPPING - return storage->edge_poly_map[edge].count; + return storage->edge_poly_map[edge_index].count; #else const Mesh *mesh = storage->mesh; const MPoly *mpoly = mesh->mpoly; const MLoop *mloop = mesh->mloop; int num = 0; - for (int poly = 0; poly < mesh->totpoly; poly++) { - const MPoly *mp = &mpoly[poly]; - for (int loop = 0; loop < mp->totloop; loop++) { - const MLoop *ml = &mloop[mp->loopstart + loop]; - if (ml->e == edge) { + for (int poly_index = 0; poly_index < mesh->totpoly; poly_index++) { + const MPoly *poly = &mpoly[poly_index]; + for (int corner = 0; corner < poly->totloop; corner++) { + const MLoop *loop = &mloop[poly->loopstart + corner]; + if (storage->manifold_edge_index[loop->e] == -1) { + continue; + } + if (loop->e == edge_index) { ++num; break; } @@ -172,25 +204,30 @@ static int get_num_edge_faces(const OpenSubdiv_Converter *converter, int edge) } static void get_edge_faces(const OpenSubdiv_Converter *converter, - int edge, - int *edge_faces) + int manifold_edge_index, + int *manifold_edge_faces) { ConverterStorage *storage = converter->user_data; + const int edge_index = + storage->manifold_edge_index_reverse[manifold_edge_index]; #ifdef USE_MESH_ELEMENT_MAPPING - memcpy(edge_faces, - storage->edge_poly_map[edge].indices, - sizeof(int) * storage->edge_poly_map[edge].count); + memcpy(manifold_edge_faces, + storage->edge_poly_map[edge_index].indices, + sizeof(int) * storage->edge_poly_map[edge_index].count); #else const Mesh *mesh = storage->mesh; const MPoly *mpoly = mesh->mpoly; const MLoop *mloop = mesh->mloop; int num = 0; - for (int poly = 0; poly < mesh->totpoly; poly++) { - const MPoly *mp = &mpoly[poly]; - for (int loop = 0; loop < mpoly->totloop; loop++) { - const MLoop *ml = &mloop[mp->loopstart + loop]; - if (ml->e == edge) { - edge_faces[num++] = poly; + for (int poly_index = 0; poly_index < mesh->totpoly; poly_index++) { + const MPoly *poly = &mpoly[poly_index]; + for (int corner = 0; corner < mpoly->totloop; corner++) { + const MLoop *loop = &mloop[poly->loopstart + corner]; + if (storage->manifold_edge_index[loop->e] == -1) { + continue; + } + if (loop->e == edge_index) { + manifold_edge_faces[num++] = poly_index; break; } } @@ -198,26 +235,46 @@ static void get_edge_faces(const OpenSubdiv_Converter *converter, #endif } -static float get_edge_sharpness(const OpenSubdiv_Converter *converter, int edge) +static float get_edge_sharpness(const OpenSubdiv_Converter *converter, + int manifold_edge_index) { ConverterStorage *storage = converter->user_data; + const int edge_index = + storage->manifold_edge_index_reverse[manifold_edge_index]; const MEdge *medge = storage->mesh->medge; - const float edge_crease = (float)medge[edge].crease / 255.0f; + const float edge_crease = (float)medge[edge_index].crease / 255.0f; return edge_crease * storage->settings.level; } -static int get_num_vert_edges(const OpenSubdiv_Converter *converter, int vert) +static int get_num_vertex_edges(const OpenSubdiv_Converter *converter, + int manifold_vertex_index) { ConverterStorage *storage = converter->user_data; + const int vertex_index = + storage->manifold_vertex_index_reverse[manifold_vertex_index]; #ifdef USE_MESH_ELEMENT_MAPPING - return storage->vert_edge_map[vert].count; + const int num_vertex_edges = storage->vert_edge_map[vertex_index].count; + int num_manifold_vertex_edges = 0; + for (int i = 0; i < num_vertex_edges; i++) { + const int edge_index = storage->vert_edge_map[vertex_index].indices[i]; + const int manifold_edge_index = + storage->manifold_edge_index[edge_index]; + if (manifold_edge_index == -1) { + continue; + } + num_manifold_vertex_edges++; + } + return num_manifold_vertex_edges; #else const Mesh *mesh = storage->mesh; const MEdge *medge = mesh->medge; int num = 0; - for (int edge = 0; edge < mesh->totedge; edge++) { - const MEdge *me = &medge[edge]; - if (me->v1 == vert || me->v2 == vert) { + for (int edge_index = 0; edge_index < mesh->totedge; edge_index++) { + const MEdge *edge = &medge[edge_index]; + if (storage->manifold_edge_index[edge_index] == -1) { + continue; + } + if (edge->v1 == vertex_index || edge->v2 == vertex_index) { ++num; } } @@ -225,43 +282,61 @@ static int get_num_vert_edges(const OpenSubdiv_Converter *converter, int vert) #endif } -static void get_vert_edges(const OpenSubdiv_Converter *converter, - int vert, - int *vert_edges) +static void get_vertex_edges(const OpenSubdiv_Converter *converter, + int manifold_vertex_index, + int *manifold_vertex_edges) { ConverterStorage *storage = converter->user_data; + const int vertex_index = + storage->manifold_vertex_index_reverse[manifold_vertex_index]; #ifdef USE_MESH_ELEMENT_MAPPING - memcpy(vert_edges, - storage->vert_edge_map[vert].indices, - sizeof(int) * storage->vert_edge_map[vert].count); + const int num_vertex_edges = storage->vert_edge_map[vertex_index].count; + int num_manifold_vertex_edges = 0; + for (int i = 0; i < num_vertex_edges; i++) { + const int edge_index = storage->vert_edge_map[vertex_index].indices[i]; + const int manifold_edge_index = + storage->manifold_edge_index[edge_index]; + if (manifold_edge_index == -1) { + continue; + } + manifold_vertex_edges[num_manifold_vertex_edges] = manifold_edge_index; + num_manifold_vertex_edges++; + } #else const Mesh *mesh = storage->mesh; const MEdge *medge = mesh->medge; int num = 0; - for (int edge = 0; edge < mesh->totedge; edge++) { - const MEdge *me = &medge[edge]; - if (me->v1 == vert || me->v2 == vert) { - vert_edges[num++] = edge; + for (int edge_index = 0; edge_index < mesh->totedge; edge_index++) { + const MEdge *edge = &medge[edge_index]; + if (storage->manifold_edge_index[edge_index] == -1) { + continue; + } + if (edge->v1 == vertex_index || edge->v2 == vertex_index) { + manifold_vertex_edges[num++] = + storage->manifold_edge_index[edge_index]; } } #endif } -static int get_num_vert_faces(const OpenSubdiv_Converter *converter, int vert) +static int get_num_vertex_faces(const OpenSubdiv_Converter *converter, + int manifold_vertex_index) { ConverterStorage *storage = converter->user_data; + const int vertex_index = + storage->manifold_vertex_index_reverse[manifold_vertex_index]; #ifdef USE_MESH_ELEMENT_MAPPING - return storage->vert_poly_map[vert].count; + return storage->vert_poly_map[vertex_index].count; #else const Mesh *mesh = storage->mesh; const MPoly *mpoly = mesh->mpoly; const MLoop *mloop = mesh->mloop; int num = 0; - for (int poly = 0; poly < mesh->totpoly; poly++) { - const MPoly *mp = &mpoly[poly]; - for (int loop = 0; loop < mpoly->totloop; loop++) { - const MLoop *ml = &mloop[mp->loopstart + loop]; - if (ml->v == vert) { + for (int poly_index = 0; poly_index < mesh->totpoly; poly_index++) { + const MPoly *poly = &mpoly[poly_index]; + for (int corner = 0; corner < mpoly->totloop; corner++) { + const MLoop *loop = &mloop[poly->loopstart + corner]; + if (loop->v == vertex_index) { ++num; break; } @@ -271,26 +346,28 @@ static int get_num_vert_faces(const OpenSubdiv_Converter *converter, int vert) #endif } -static void get_vert_faces(const OpenSubdiv_Converter *converter, - int vert, - int *vert_faces) +static void get_vertex_faces(const OpenSubdiv_Converter *converter, + int manifold_vertex_index, + int *manifold_vertex_faces) { ConverterStorage *storage = converter->user_data; + const int vertex_index = + storage->manifold_vertex_index_reverse[manifold_vertex_index]; #ifdef USE_MESH_ELEMENT_MAPPING - memcpy(vert_faces, - storage->vert_poly_map[vert].indices, - sizeof(int) * storage->vert_poly_map[vert].count); + memcpy(manifold_vertex_faces, + storage->vert_poly_map[vertex_index].indices, + sizeof(int) * storage->vert_poly_map[vertex_index].count); #else const Mesh *mesh = storage->mesh; const MPoly *mpoly = mesh->mpoly; const MLoop *mloop = mesh->mloop; int num = 0; - for (int poly = 0; poly < mesh->totpoly; poly++) { - const MPoly *mp = &mpoly[poly]; - for (int loop = 0; loop < mpoly->totloop; loop++) { - const MLoop *ml = &mloop[mp->loopstart + loop]; - if (ml->v == vert) { - vert_faces[num++] = poly; + for (int poly_index = 0; poly_index < mesh->totpoly; poly_index++) { + const MPoly *poly = &mpoly[poly_index]; + for (int corner = 0; corner < mpoly->totloop; corner++) { + const MLoop *loop = &mloop[poly->loopstart + corner]; + if (loop->v == vertex_index) { + manifold_vertex_faces[num++] = poly_index; break; } } @@ -298,6 +375,16 @@ static void get_vert_faces(const OpenSubdiv_Converter *converter, #endif } +static bool is_infinite_sharp_vertex(const OpenSubdiv_Converter *converter, + int manifold_vertex_index) +{ + ConverterStorage *storage = converter->user_data; + const int vertex_index = + storage->manifold_vertex_index_reverse[manifold_vertex_index]; + return BLI_BITMAP_TEST_BOOL(storage->infinite_sharp_vertices_map, + vertex_index); +} + static int get_num_uv_layers(const OpenSubdiv_Converter *converter) { ConverterStorage *storage = converter->user_data; @@ -382,6 +469,11 @@ static void free_user_data(const OpenSubdiv_Converter *converter) MEM_freeN(user_data->edge_poly_map); MEM_freeN(user_data->edge_poly_mem); #endif + MEM_freeN(user_data->manifold_vertex_index); + MEM_freeN(user_data->manifold_edge_index); + MEM_freeN(user_data->infinite_sharp_vertices_map); + MEM_freeN(user_data->manifold_vertex_index_reverse); + MEM_freeN(user_data->manifold_edge_index_reverse); MEM_freeN(user_data); } @@ -393,21 +485,22 @@ static void init_functions(OpenSubdiv_Converter *converter) converter->getNumFaces = get_num_faces; converter->getNumEdges = get_num_edges; - converter->getNumVertices = get_num_verts; + converter->getNumVertices = get_num_vertices; - converter->getNumFaceVertices = get_num_face_verts; - converter->getFaceVertices = get_face_verts; + converter->getNumFaceVertices = get_num_face_vertices; + converter->getFaceVertices = get_face_vertices; converter->getFaceEdges = get_face_edges; - converter->getEdgeVertices = get_edge_verts; + converter->getEdgeVertices = get_edge_vertices; converter->getNumEdgeFaces = get_num_edge_faces; converter->getEdgeFaces = get_edge_faces; converter->getEdgeSharpness = get_edge_sharpness; - converter->getNumVertexEdges = get_num_vert_edges; - converter->getVertexEdges = get_vert_edges; - converter->getNumVertexFaces = get_num_vert_faces; - converter->getVertexFaces = get_vert_faces; + converter->getNumVertexEdges = get_num_vertex_edges; + converter->getVertexEdges = get_vertex_edges; + converter->getNumVertexFaces = get_num_vertex_faces; + converter->getVertexFaces = get_vertex_faces; + converter->isInfiniteSharpVertex = is_infinite_sharp_vertex; converter->getNumUVLayers = get_num_uv_layers; converter->precalcUVLayer = precalc_uv_layer; @@ -444,6 +537,74 @@ static void create_element_maps_if_needed(ConverterStorage *storage) #endif } +static void initialize_manifold_index_array(const BLI_bitmap *used_map, + const int num_elements, + int **indices_r, + int **indices_reverse_r, + int *num_manifold_elements_r) +{ + int *indices = MEM_malloc_arrayN( + num_elements, sizeof(int), "manifold indices"); + int *indices_reverse = MEM_malloc_arrayN( + num_elements, sizeof(int), "manifold indices reverse"); + int offset = 0; + for (int i = 0; i < num_elements; i++) { + if (BLI_BITMAP_TEST_BOOL(used_map, i)) { + indices[i] = i - offset; + indices_reverse[i - offset] = i; + } + else { + indices[i] = -1; + offset++; + } + } + *indices_r = indices; + *indices_reverse_r = indices_reverse; + *num_manifold_elements_r = num_elements - offset; +} + +static void initialize_manifold_indices(ConverterStorage *storage) +{ + const Mesh *mesh = storage->mesh; + const MEdge *medge = mesh->medge; + const MLoop *mloop = mesh->mloop; + const MPoly *mpoly = mesh->mpoly; + /* Set bits of elements which are not loose. */ + BLI_bitmap *vert_used_map = BLI_BITMAP_NEW(mesh->totvert, "vert used map"); + BLI_bitmap *edge_used_map = BLI_BITMAP_NEW(mesh->totedge, "edge used map"); + for (int poly_index = 0; poly_index < mesh->totpoly; poly_index++) { + const MPoly *poly = &mpoly[poly_index]; + for (int corner = 0; corner < poly->totloop; corner++) { + const MLoop *loop = &mloop[poly->loopstart + corner]; + BLI_BITMAP_ENABLE(vert_used_map, loop->v); + BLI_BITMAP_ENABLE(edge_used_map, loop->e); + } + } + initialize_manifold_index_array(vert_used_map, + mesh->totvert, + &storage->manifold_vertex_index, + &storage->manifold_vertex_index_reverse, + &storage->num_manifold_vertices); + initialize_manifold_index_array(edge_used_map, + mesh->totedge, + &storage->manifold_edge_index, + &storage->manifold_edge_index_reverse, + &storage->num_manifold_edges); + /* Initialize infinite sharp mapping. */ + storage->infinite_sharp_vertices_map = + BLI_BITMAP_NEW(mesh->totvert, "vert used map"); + for (int edge_index = 0; edge_index < mesh->totedge; edge_index++) { + if (!BLI_BITMAP_TEST_BOOL(edge_used_map, edge_index)) { + const MEdge *edge = &medge[edge_index]; + BLI_BITMAP_ENABLE(storage->infinite_sharp_vertices_map, edge->v1); + BLI_BITMAP_ENABLE(storage->infinite_sharp_vertices_map, edge->v2); + } + } + /* Free working variables. */ + MEM_freeN(vert_used_map); + MEM_freeN(edge_used_map); +} + static void init_user_data(OpenSubdiv_Converter *converter, const SubdivSettings *settings, const Mesh *mesh) @@ -454,6 +615,7 @@ static void init_user_data(OpenSubdiv_Converter *converter, user_data->mesh = mesh; user_data->loop_uv_indices = NULL; create_element_maps_if_needed(user_data); + initialize_manifold_indices(user_data); converter->user_data = user_data; } #endif |