diff options
Diffstat (limited to 'source/blender/blenkernel/intern/multires_reshape_smooth.c')
| -rw-r--r-- | source/blender/blenkernel/intern/multires_reshape_smooth.c | 146 |
1 files changed, 102 insertions, 44 deletions
diff --git a/source/blender/blenkernel/intern/multires_reshape_smooth.c b/source/blender/blenkernel/intern/multires_reshape_smooth.c index 514608a0f1d..04acb95909f 100644 --- a/source/blender/blenkernel/intern/multires_reshape_smooth.c +++ b/source/blender/blenkernel/intern/multires_reshape_smooth.c @@ -48,6 +48,10 @@ #include "atomic_ops.h" #include "subdiv_converter.h" +/* -------------------------------------------------------------------- */ +/** \name Local Structs + * \{ */ + typedef struct SurfacePoint { float P[3]; float tangent_matrix[3][3]; @@ -115,11 +119,21 @@ typedef struct MultiresReshapeSmoothContext { Subdiv *reshape_subdiv; SurfaceGrid *base_surface_grids; + + /* Defines how displacement is interpolated on the higher levels (for example, whether + * displacement is smoothed in Catmull-Clark mode or interpolated linearly preserving sharp edges + * of the current sculpt level). + * + * NOTE: Uses same enumerator type as Subdivide operator, since the values are the same and + * decoupling type just adds extra headache to convert one enumerator to another. */ + eMultiresSubdivideModeType smoothing_type; } MultiresReshapeSmoothContext; -/* ================================================================================================ - * Masks. - */ +/** \} */ + +/* -------------------------------------------------------------------- */ +/** \name Masks + * \{ */ /* Interpolate mask grid at a reshape level. * Will return 0 if there is no masks custom data layer. */ @@ -165,9 +179,11 @@ static float interpolate_masks_grid(const MultiresReshapeSmoothContext *reshape_ mask_elements[2] * weights[2] + mask_elements[3] * weights[3]; } -/* ================================================================================================ - * Surface. - */ +/** \} */ + +/* -------------------------------------------------------------------- */ +/** \name Surface + * \{ */ static void base_surface_grids_allocate(MultiresReshapeSmoothContext *reshape_smooth_context) { @@ -227,9 +243,11 @@ static void base_surface_grids_write(const MultiresReshapeSmoothContext *reshape copy_m3_m3(point->tangent_matrix, tangent_matrix); } -/* ================================================================================================ - * Evaluation of subdivision surface at a reshape level. - */ +/** \} */ + +/* -------------------------------------------------------------------- */ +/** \name Evaluation of subdivision surface at a reshape level + * \{ */ typedef void (*ForeachTopLevelGridCoordCallback)( const MultiresReshapeSmoothContext *reshape_smooth_context, @@ -383,11 +401,14 @@ static void foreach_toplevel_grid_coord(const MultiresReshapeSmoothContext *resh 0, num_faces, &data, foreach_toplevel_grid_coord_task, ¶llel_range_settings); } -/* ================================================================================================ - * Generation of a topology information for OpenSubdiv converter. +/** \} */ + +/* -------------------------------------------------------------------- */ +/** \name Generation of a topology information for OpenSubdiv converter * * Calculates vertices, their coordinates in the original grids, and connections of them so then - * it's easy to create OpenSubdiv's topology refiner. */ + * it's easy to create OpenSubdiv's topology refiner. + * \{ */ static int get_reshape_level_resolution(const MultiresReshapeContext *reshape_context) { @@ -399,15 +420,17 @@ static int get_reshape_level_resolution(const MultiresReshapeContext *reshape_co static char get_effective_edge_crease_char( const MultiresReshapeSmoothContext *reshape_smooth_context, const MEdge *base_edge) { - const MultiresReshapeContext *reshape_context = reshape_smooth_context->reshape_context; - if (reshape_context->subdiv->settings.is_simple) { + if (ELEM(reshape_smooth_context->smoothing_type, + MULTIRES_SUBDIVIDE_LINEAR, + MULTIRES_SUBDIVIDE_SIMPLE)) { return 255; } return base_edge->crease; } static void context_init(MultiresReshapeSmoothContext *reshape_smooth_context, - const MultiresReshapeContext *reshape_context) + const MultiresReshapeContext *reshape_context, + const eMultiresSubdivideModeType mode) { reshape_smooth_context->reshape_context = reshape_context; @@ -427,6 +450,8 @@ static void context_init(MultiresReshapeSmoothContext *reshape_smooth_context, reshape_smooth_context->non_loose_base_edge_map = NULL; reshape_smooth_context->reshape_subdiv = NULL; reshape_smooth_context->base_surface_grids = NULL; + + reshape_smooth_context->smoothing_type = mode; } static void context_free_geometry(MultiresReshapeSmoothContext *reshape_smooth_context) @@ -461,12 +486,14 @@ static void context_free(MultiresReshapeSmoothContext *reshape_smooth_context) static bool foreach_topology_info(const SubdivForeachContext *foreach_context, const int num_vertices, - const int UNUSED(num_edges), + const int num_edges, const int num_loops, const int num_polygons) { MultiresReshapeSmoothContext *reshape_smooth_context = foreach_context->user_data; - const int max_edges = reshape_smooth_context->geometry.max_edges; + const int max_edges = reshape_smooth_context->smoothing_type == MULTIRES_SUBDIVIDE_LINEAR ? + num_edges : + reshape_smooth_context->geometry.max_edges; /* NOTE: Calloc so the counters are re-set to 0 "for free". */ reshape_smooth_context->geometry.num_vertices = num_vertices; @@ -659,6 +686,22 @@ static void foreach_vertex_of_loose_edge(const struct SubdivForeachContext *fore } } +static void store_edge(MultiresReshapeSmoothContext *reshape_smooth_context, + const int subdiv_v1, + const int subdiv_v2, + const char crease) +{ + /* This is a bit overhead to use atomics in such a simple function called from many threads, + * but this allows to save quite measurable amount of memory. */ + const int edge_index = atomic_fetch_and_add_z(&reshape_smooth_context->geometry.num_edges, 1); + BLI_assert(edge_index < reshape_smooth_context->geometry.max_edges); + + Edge *edge = &reshape_smooth_context->geometry.edges[edge_index]; + edge->v1 = subdiv_v1; + edge->v2 = subdiv_v2; + edge->sharpness = BKE_subdiv_edge_crease_to_sharpness_char(crease); +} + static void foreach_edge(const struct SubdivForeachContext *foreach_context, void *UNUSED(tls), const int coarse_edge_index, @@ -669,8 +712,15 @@ static void foreach_edge(const struct SubdivForeachContext *foreach_context, MultiresReshapeSmoothContext *reshape_smooth_context = foreach_context->user_data; const MultiresReshapeContext *reshape_context = reshape_smooth_context->reshape_context; - /* Ignore all inner face edges as they have sharpness of zero. */ - if (coarse_edge_index == ORIGINDEX_NONE) { + if (reshape_smooth_context->smoothing_type == MULTIRES_SUBDIVIDE_LINEAR) { + store_edge(reshape_smooth_context, subdiv_v1, subdiv_v2, (char)255); + return; + } + + /* Ignore all inner face edges as they have sharpness of zero when using Catmull-Clark mode. In + * simple mode, all edges have maximum sharpness, so they can't be skipped. */ + if (coarse_edge_index == ORIGINDEX_NONE && + reshape_smooth_context->smoothing_type != MULTIRES_SUBDIVIDE_SIMPLE) { return; } /* Ignore all loose edges as well, as they are not communicated to the OpenSubdiv. */ @@ -684,16 +734,7 @@ static void foreach_edge(const struct SubdivForeachContext *foreach_context, if (crease == 0) { return; } - - /* This is a bit overhead to use atomics in such a simple function called from many threads, - * but this allows to save quite measurable amount of memory. */ - const int edge_index = atomic_fetch_and_add_z(&reshape_smooth_context->geometry.num_edges, 1); - BLI_assert(edge_index < reshape_smooth_context->geometry.max_edges); - - Edge *edge = &reshape_smooth_context->geometry.edges[edge_index]; - edge->v1 = subdiv_v1; - edge->v2 = subdiv_v2; - edge->sharpness = BKE_subdiv_edge_crease_to_sharpness_char(crease); + store_edge(reshape_smooth_context, subdiv_v1, subdiv_v2, crease); } static void geometry_init_loose_information(MultiresReshapeSmoothContext *reshape_smooth_context) @@ -757,9 +798,11 @@ static void geometry_create(MultiresReshapeSmoothContext *reshape_smooth_context reshape_context->subdiv, &foreach_context, &mesh_settings, reshape_context->base_mesh); } -/* ================================================================================================ - * Generation of OpenSubdiv evaluator for topology created form reshape level. - */ +/** \} */ + +/* -------------------------------------------------------------------- */ +/** \name Generation of OpenSubdiv evaluator for topology created form reshape level + * \{ */ static OpenSubdiv_SchemeType get_scheme_type(const OpenSubdiv_Converter *UNUSED(converter)) { @@ -1037,9 +1080,11 @@ static void reshape_subdiv_evaluate_limit_at_grid( BKE_multires_construct_tangent_matrix(r_tangent_matrix, dPdu, dPdv, corner); } -/* ================================================================================================ - * Evaluation of base surface. - */ +/** \} */ + +/* -------------------------------------------------------------------- */ +/** \name Evaluation of base surface + * \{ */ static void evaluate_base_surface_grids_callback( const MultiresReshapeSmoothContext *reshape_smooth_context, @@ -1060,9 +1105,11 @@ static void evaluate_base_surface_grids(const MultiresReshapeSmoothContext *resh foreach_toplevel_grid_coord(reshape_smooth_context, evaluate_base_surface_grids_callback, NULL); } -/* ================================================================================================ - * Evaluation of new surface. - */ +/** \} */ + +/* -------------------------------------------------------------------- */ +/** \name Evaluation of new surface + * \{ */ /* Evaluate final position of the original (pre-sculpt-edit) point position at a given grid * coordinate. */ @@ -1176,9 +1223,12 @@ static void evaluate_higher_grid_positions( foreach_toplevel_grid_coord( reshape_smooth_context, evaluate_higher_grid_positions_callback, NULL); } -/* ================================================================================================ - * Entry point. - */ + +/** \} */ + +/* -------------------------------------------------------------------- */ +/** \name Entry point + * \{ */ void multires_reshape_smooth_object_grids_with_details( const MultiresReshapeContext *reshape_context) @@ -1190,7 +1240,12 @@ void multires_reshape_smooth_object_grids_with_details( } MultiresReshapeSmoothContext reshape_smooth_context; - context_init(&reshape_smooth_context, reshape_context); + if (reshape_context->subdiv->settings.is_simple) { + context_init(&reshape_smooth_context, reshape_context, MULTIRES_SUBDIVIDE_SIMPLE); + } + else { + context_init(&reshape_smooth_context, reshape_context, MULTIRES_SUBDIVIDE_CATMULL_CLARK); + } geometry_create(&reshape_smooth_context); @@ -1206,7 +1261,8 @@ void multires_reshape_smooth_object_grids_with_details( context_free(&reshape_smooth_context); } -void multires_reshape_smooth_object_grids(const MultiresReshapeContext *reshape_context) +void multires_reshape_smooth_object_grids(const MultiresReshapeContext *reshape_context, + const eMultiresSubdivideModeType mode) { const int level_difference = (reshape_context->top.level - reshape_context->reshape.level); if (level_difference == 0) { @@ -1215,7 +1271,7 @@ void multires_reshape_smooth_object_grids(const MultiresReshapeContext *reshape_ } MultiresReshapeSmoothContext reshape_smooth_context; - context_init(&reshape_smooth_context, reshape_context); + context_init(&reshape_smooth_context, reshape_context, mode); geometry_create(&reshape_smooth_context); @@ -1226,3 +1282,5 @@ void multires_reshape_smooth_object_grids(const MultiresReshapeContext *reshape_ context_free(&reshape_smooth_context); } + +/** \} */ |