Campbell Barton
c434782e3a
Use a shorter/simpler license convention, stops the header taking so much space. Follow the SPDX license specification: https://spdx.org/licenses - C/C++/objc/objc++ - Python - Shell Scripts - CMake, GNUmakefile While most of the source tree has been included - `./extern/` was left out. - `./intern/cycles` & `./intern/atomic` are also excluded because they use different header conventions. doc/license/SPDX-license-identifiers.txt has been added to list SPDX all used identifiers. See P2788 for the script that automated these edits. Reviewed By: brecht, mont29, sergey Ref D14069
91 lines
2.9 KiB
C
91 lines
2.9 KiB
C
/* SPDX-License-Identifier: GPL-2.0-or-later
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* Copyright 2020 Blender Foundation. All rights reserved. */
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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.h"
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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.h"
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static void multires_subdivide_create_object_space_linear_grids(Mesh *mesh)
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{
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MDisps *mdisps = CustomData_get_layer(&mesh->ldata, CD_MDISPS);
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const int totpoly = mesh->totpoly;
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for (int p = 0; p < totpoly; p++) {
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MPoly *poly = &mesh->mpoly[p];
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float poly_center[3];
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BKE_mesh_calc_poly_center(poly, &mesh->mloop[poly->loopstart], mesh->mvert, poly_center);
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for (int l = 0; l < poly->totloop; l++) {
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const int loop_index = poly->loopstart + 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->totloop - 1;
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int next_loop_index = l + 1 < poly->totloop ? loop_index + 1 : poly->loopstart;
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MLoop *loop = &mesh->mloop[loop_index];
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MLoop *loop_next = &mesh->mloop[next_loop_index];
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MLoop *loop_prev = &mesh->mloop[prev_loop_index];
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copy_v3_v3(disps[0], poly_center);
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mid_v3_v3v3(disps[1], mesh->mvert[loop->v].co, mesh->mvert[loop_next->v].co);
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mid_v3_v3v3(disps[2], mesh->mvert[loop->v].co, mesh->mvert[loop_prev->v].co);
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copy_v3_v3(disps[3], mesh->mvert[loop->v].co);
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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 = 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_CALLOC, NULL, 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(
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&reshape_context, object, mmd, new_top_level)) {
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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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