e955c94ed3
Listing the "Blender Foundation" as copyright holder implied the Blender Foundation holds copyright to files which may include work from many developers. While keeping copyright on headers makes sense for isolated libraries, Blender's own code may be refactored or moved between files in a way that makes the per file copyright holders less meaningful. Copyright references to the "Blender Foundation" have been replaced with "Blender Authors", with the exception of `./extern/` since these this contains libraries which are more isolated, any changed to license headers there can be handled on a case-by-case basis. Some directories in `./intern/` have also been excluded: - `./intern/cycles/` it's own `AUTHORS` file is planned. - `./intern/opensubdiv/`. An "AUTHORS" file has been added, using the chromium projects authors file as a template. Design task: #110784 Ref !110783.
95 lines
2.8 KiB
C++
95 lines
2.8 KiB
C++
/* SPDX-FileCopyrightText: 2020 Blender Authors
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*
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* SPDX-License-Identifier: GPL-2.0-or-later */
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/** \file
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* \ingroup bke
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*/
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#include "MEM_guardedalloc.h"
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#include "DNA_mesh_types.h"
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#include "DNA_modifier_types.h"
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#include "DNA_object_types.h"
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#include "BKE_subdiv.hh"
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#include "BKE_subdiv_eval.hh"
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#include "multires_reshape.hh"
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#include "opensubdiv_converter_capi.h"
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#include "subdiv_converter.hh"
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static float simple_to_catmull_clark_get_edge_sharpness(const OpenSubdiv_Converter * /*converter*/,
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int /*manifold_edge_index*/)
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{
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return 10.0f;
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}
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static bool simple_to_catmull_clark_is_infinite_sharp_vertex(
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const OpenSubdiv_Converter * /*converter*/, int /*manifold_vertex_index*/)
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{
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return true;
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}
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static Subdiv *subdiv_for_simple_to_catmull_clark(Object *object, MultiresModifierData *mmd)
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{
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SubdivSettings subdiv_settings;
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BKE_multires_subdiv_settings_init(&subdiv_settings, mmd);
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const Mesh *base_mesh = static_cast<const Mesh *>(object->data);
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OpenSubdiv_Converter converter;
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BKE_subdiv_converter_init_for_mesh(&converter, &subdiv_settings, base_mesh);
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converter.getEdgeSharpness = simple_to_catmull_clark_get_edge_sharpness;
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converter.isInfiniteSharpVertex = simple_to_catmull_clark_is_infinite_sharp_vertex;
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Subdiv *subdiv = BKE_subdiv_new_from_converter(&subdiv_settings, &converter);
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BKE_subdiv_converter_free(&converter);
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if (!BKE_subdiv_eval_begin_from_mesh(
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subdiv, base_mesh, nullptr, SUBDIV_EVALUATOR_TYPE_CPU, nullptr))
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{
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BKE_subdiv_free(subdiv);
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return nullptr;
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}
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return subdiv;
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}
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void multires_do_versions_simple_to_catmull_clark(Object *object, MultiresModifierData *mmd)
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{
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const Mesh *base_mesh = static_cast<const Mesh *>(object->data);
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if (base_mesh->totloop == 0) {
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return;
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}
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/* Store the grids displacement in object space against the simple limit surface. */
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{
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Subdiv *subdiv = subdiv_for_simple_to_catmull_clark(object, mmd);
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MultiresReshapeContext reshape_context;
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if (!multires_reshape_context_create_from_subdiv(
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&reshape_context, object, mmd, subdiv, mmd->totlvl))
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{
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BKE_subdiv_free(subdiv);
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return;
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}
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multires_reshape_store_original_grids(&reshape_context);
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multires_reshape_assign_final_coords_from_mdisps(&reshape_context);
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multires_reshape_context_free(&reshape_context);
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BKE_subdiv_free(subdiv);
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}
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/* Calculate the new tangent displacement against the new Catmull-Clark limit surface. */
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{
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MultiresReshapeContext reshape_context;
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if (!multires_reshape_context_create_from_modifier(&reshape_context, object, mmd, mmd->totlvl))
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{
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return;
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}
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multires_reshape_object_grids_to_tangent_displacement(&reshape_context);
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multires_reshape_context_free(&reshape_context);
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}
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}
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