diff options
Diffstat (limited to 'source/blender/blenkernel/intern/multires_versioning.c')
-rw-r--r-- | source/blender/blenkernel/intern/multires_versioning.c | 106 |
1 files changed, 106 insertions, 0 deletions
diff --git a/source/blender/blenkernel/intern/multires_versioning.c b/source/blender/blenkernel/intern/multires_versioning.c new file mode 100644 index 00000000000..4c0d7165cd0 --- /dev/null +++ b/source/blender/blenkernel/intern/multires_versioning.c @@ -0,0 +1,106 @@ +/* + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software Foundation, + * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + * + * The Original Code is Copyright (C) 2020 by Blender Foundation. + * All rights reserved. + */ + +/** \file + * \ingroup bke + */ + +#include "MEM_guardedalloc.h" + +#include "DNA_mesh_types.h" +#include "DNA_modifier_types.h" +#include "DNA_object_types.h" + +#include "BKE_subdiv.h" +#include "BKE_subdiv_eval.h" + +#include "multires_reshape.h" +#include "opensubdiv_converter_capi.h" +#include "subdiv_converter.h" + +static float simple_to_catmull_clark_get_edge_sharpness( + const OpenSubdiv_Converter *UNUSED(converter), int UNUSED(manifold_edge_index)) +{ + return 10.0f; +} + +static bool simple_to_catmull_clark_is_infinite_sharp_vertex( + const OpenSubdiv_Converter *UNUSED(converter), int UNUSED(manifold_vertex_index)) +{ + return true; +} + +static Subdiv *subdiv_for_simple_to_catmull_clark(Object *object, MultiresModifierData *mmd) +{ + SubdivSettings subdiv_settings; + BKE_multires_subdiv_settings_init(&subdiv_settings, mmd); + + Mesh *base_mesh = object->data; + + OpenSubdiv_Converter converter; + BKE_subdiv_converter_init_for_mesh(&converter, &subdiv_settings, base_mesh); + converter.getEdgeSharpness = simple_to_catmull_clark_get_edge_sharpness; + converter.isInfiniteSharpVertex = simple_to_catmull_clark_is_infinite_sharp_vertex; + + Subdiv *subdiv = BKE_subdiv_new_from_converter(&subdiv_settings, &converter); + BKE_subdiv_converter_free(&converter); + + if (!BKE_subdiv_eval_begin_from_mesh(subdiv, base_mesh, NULL)) { + BKE_subdiv_free(subdiv); + return NULL; + } + + return subdiv; +} + +void multires_do_versions_simple_to_catmull_clark(Object *object, MultiresModifierData *mmd) +{ + const Mesh *base_mesh = object->data; + if (base_mesh->totloop == 0) { + return; + } + + /* Store the grids displacement in object space against the simple limit surface. */ + { + Subdiv *subdiv = subdiv_for_simple_to_catmull_clark(object, mmd); + MultiresReshapeContext reshape_context; + if (!multires_reshape_context_create_from_subdiv( + &reshape_context, object, mmd, subdiv, mmd->totlvl)) { + BKE_subdiv_free(subdiv); + return; + } + + multires_reshape_store_original_grids(&reshape_context); + multires_reshape_assign_final_coords_from_mdisps(&reshape_context); + multires_reshape_context_free(&reshape_context); + + BKE_subdiv_free(subdiv); + } + + /* Calculate the new tangent displacement against the new Catmull-Clark limit surface. */ + { + MultiresReshapeContext reshape_context; + if (!multires_reshape_context_create_from_modifier( + &reshape_context, object, mmd, mmd->totlvl)) { + return; + } + multires_reshape_object_grids_to_tangent_displacement(&reshape_context); + multires_reshape_context_free(&reshape_context); + } +} |