c1bc70b711
A lot of files were missing copyright field in the header and
the Blender Foundation contributed to them in a sense of bug
fixing and general maintenance.
This change makes it explicit that those files are at least
partially copyrighted by the Blender Foundation.
Note that this does not make it so the Blender Foundation is
the only holder of the copyright in those files, and developers
who do not have a signed contract with the foundation still
hold the copyright as well.
Another aspect of this change is using SPDX format for the
header. We already used it for the license specification,
and now we state it for the copyright as well, following the
FAQ:
https://reuse.software/faq/
97 lines
3.1 KiB
C++
97 lines
3.1 KiB
C++
/* SPDX-FileCopyrightText: 2020 Blender Foundation
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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_meshdata_types.h"
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#include "DNA_modifier_types.h"
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#include "DNA_scene_types.h"
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#include "BKE_customdata.h"
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#include "BKE_lib_id.h"
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#include "BKE_mesh.hh"
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#include "BKE_mesh_runtime.h"
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#include "BKE_modifier.h"
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#include "BKE_multires.h"
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#include "BKE_subdiv.h"
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#include "BKE_subsurf.h"
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#include "BLI_math_vector.h"
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#include "DEG_depsgraph_query.h"
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#include "multires_reshape.hh"
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static void multires_subdivide_create_object_space_linear_grids(Mesh *mesh)
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{
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using namespace blender;
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using namespace blender::bke;
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const Span<float3> positions = mesh->vert_positions();
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const blender::OffsetIndices polys = mesh->polys();
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const blender::Span<int> corner_verts = mesh->corner_verts();
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MDisps *mdisps = static_cast<MDisps *>(
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CustomData_get_layer_for_write(&mesh->ldata, CD_MDISPS, mesh->totloop));
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for (const int p : polys.index_range()) {
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const blender::IndexRange poly = polys[p];
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const float3 poly_center = mesh::poly_center_calc(positions, corner_verts.slice(poly));
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for (int l = 0; l < poly.size(); l++) {
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const int loop_index = poly[l];
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float(*disps)[3] = mdisps[loop_index].disps;
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mdisps[loop_index].totdisp = 4;
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mdisps[loop_index].level = 1;
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int prev_loop_index = l - 1 >= 0 ? loop_index - 1 : loop_index + poly.size() - 1;
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int next_loop_index = l + 1 < poly.size() ? loop_index + 1 : poly.start();
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const int vert = corner_verts[loop_index];
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const int vert_next = corner_verts[next_loop_index];
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const int vert_prev = corner_verts[prev_loop_index];
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copy_v3_v3(disps[0], poly_center);
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mid_v3_v3v3(disps[1], positions[vert], positions[vert_next]);
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mid_v3_v3v3(disps[2], positions[vert], positions[vert_prev]);
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copy_v3_v3(disps[3], positions[vert]);
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}
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}
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}
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void multires_subdivide_create_tangent_displacement_linear_grids(Object *object,
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MultiresModifierData *mmd)
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{
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Mesh *coarse_mesh = static_cast<Mesh *>(object->data);
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multires_force_sculpt_rebuild(object);
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MultiresReshapeContext reshape_context;
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const int new_top_level = mmd->totlvl + 1;
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const bool has_mdisps = CustomData_has_layer(&coarse_mesh->ldata, CD_MDISPS);
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if (!has_mdisps) {
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CustomData_add_layer(&coarse_mesh->ldata, CD_MDISPS, CD_SET_DEFAULT, coarse_mesh->totloop);
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}
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if (new_top_level == 1) {
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/* No MDISPS. Create new grids for level 1 using the edges mid point and poly centers. */
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multires_reshape_ensure_grids(coarse_mesh, 1);
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multires_subdivide_create_object_space_linear_grids(coarse_mesh);
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}
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/* Convert the new grids to tangent displacement. */
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multires_set_tot_level(object, mmd, new_top_level);
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if (!multires_reshape_context_create_from_modifier(&reshape_context, object, mmd, new_top_level))
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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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