Differential D5407 Diff 17104 source/blender/editors/object/object_remesh.c

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source/blender/editors/object/object_remesh.c

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				/*
				* 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) 2019 by Blender Foundation
				* All rights reserved.
				*/

				/** \file
				* \ingroup edobj
				*/

				#include <stdlib.h>
				#include <string.h>
				#include <math.h>
				#include <float.h>
				#include <ctype.h>

				#include "MEM_guardedalloc.h"

				#include "BLI_blenlib.h"
				#include "BLI_math.h"
				#include "BLI_utildefines.h"

				#include "DNA_scene_types.h"
				#include "DNA_object_types.h"
				#include "DNA_meshdata_types.h"
				#include "DNA_mesh_types.h"

				#include "BKE_context.h"
				#include "BKE_global.h"
				#include "BKE_main.h"
				#include "BKE_mesh.h"
				#include "BKE_object.h"
				#include "BKE_paint.h"
				#include "BKE_report.h"
				#include "BKE_scene.h"
				#include "BKE_customdata.h"
				#include "BKE_remesh.h"

				#include "DEG_depsgraph.h"
				#include "DEG_depsgraph_build.h"

				#include "ED_mesh.h"
				#include "ED_object.h"
				#include "ED_screen.h"
				#include "ED_sculpt.h"
				#include "ED_undo.h"

				#include "RNA_access.h"
				#include "RNA_define.h"
				#include "RNA_enum_types.h"

				#include "WM_api.h"
				#include "WM_types.h"
				#include "WM_message.h"
				#include "WM_toolsystem.h"

				#include "object_intern.h" // own include

				brechtUnsubmitted Done Inline Actions Private header files from other modules should not be used if it can be avoided. Can whatever is used be exposed in `ED_sculpt.h` instead? brecht: Private header files from other modules should not be used if it can be avoided. Can whatever…
				#ifdef WITH_OPENVDB
				# include "openvdb_capi.h"
				#endif

				static bool object_remesh_poll(bContext *C)
				{
				sybrenUnsubmitted Not Done Inline Actions This segfaults when there is no active object. Same for the other use of `ob->whatever` below. I have committed a quick fix in 8c0dea72b6791a07100487de556ab352106f7f44, as it breaks the F3 operator search. sybren: This segfaults when there is no active object. Same for the other use of `ob->whatever` below.
				Object *ob = CTX_data_active_object(C);

				if (BKE_object_is_in_editmode(ob)) {
				CTX_wm_operator_poll_msg_set(C, "The voxel remesher cannot run from edit mode.");
				return false;
				}
				sybrenUnsubmitted Not Done Inline Actions should this have a `return false;` in there? sybren: should this have a `return false;` in there?

				if (ob->mode == OB_MODE_SCULPT && ob->sculpt->bm) {
				CTX_wm_operator_poll_msg_set(C, "The voxel remesher cannot run with dyntopo activated.");
				}

				return ED_operator_object_active_editable_mesh(C);
				}

				static int voxel_remesh_exec(bContext C, wmOperator op)
				{
				Object *ob = CTX_data_active_object(C);
				Main *bmain = CTX_data_main(C);

				Mesh *mesh = ob->data;
				Mesh *new_mesh;

				brechtUnsubmitted Done Inline Actions It's generally not needed to tests things again that were already checked in the poll function, it's guaranteed to run before exec. `CTX_wm_operator_poll_msg_set` can be used to report the reason the operator is not available ahead of time in the tooltip, rather than when it executes. brecht: It's generally not needed to tests things again that were already checked in the poll function…
				if (mesh->voxel_size <= 0.0f) {
				BKE_report(op->reports, RPT_ERROR, "Voxel remesher cannot run with a voxel size of 0.0.");
				return OPERATOR_CANCELLED;
				}

				if (ob->mode == OB_MODE_SCULPT) {
				ED_sculpt_undo_geometry_begin(ob);
				}

				struct OpenVDBLevelSet *level_set;
				struct OpenVDBTransform *xform = OpenVDBTransform_create();
				OpenVDBTransform_create_linear_transform(xform, (double)mesh->voxel_size);
				level_set = BKE_remesh_voxel_ovdb_mesh_to_level_set_create(mesh, xform);
				new_mesh = BKE_remesh_voxel_ovdb_volume_to_mesh_nomain(level_set, 0.0, 0.0, false);
				OpenVDBLevelSet_free(level_set);
				OpenVDBTransform_free(xform);
				brechtUnsubmitted Done Inline Actions The code currently will not build when `WITH_OPENVDB` is `OFF`. To fix that: Put this chunk of code in a `Mesh BKE_remesh_to_mesh_nomain(Mesh mesh, float voxel_size);` function in `remesh.c`. Then #ifdef WITH_OPENVDB all the code in remesh.c that uses the OpenVDB C API. Let `BKE_remesh_to_mesh_nomain` return `NULL` when `WITH_OPENVDB` is `OFF`. Remove OpenVB include and functions from `BKE_remesh.h`. brecht: The code currently will not build when `WITH_OPENVDB` is `OFF`. To fix that: * Put this chunk…

				Mesh *obj_mesh_copy;
				if (mesh->flag & ME_REMESH_REPROJECT_PAINT_MASK) {
				obj_mesh_copy = BKE_mesh_new_nomain_from_template(mesh, mesh->totvert, 0, 0, 0, 0);
				CustomData_copy(
				&mesh->vdata, &obj_mesh_copy->vdata, CD_MASK_MESH.vmask, CD_DUPLICATE, mesh->totvert);
				for (int i = 0; i < mesh->totvert; i++) {
				brechtUnsubmitted Done Inline Actions Indentation seems uneven here. brecht: Indentation seems uneven here.
				copy_v3_v3(obj_mesh_copy->mvert[i].co, mesh->mvert[i].co);
				}
				}

				BKE_mesh_nomain_to_mesh(new_mesh, mesh, ob, &CD_MASK_EVERYTHING, true);
				brechtUnsubmitted Done Inline Actions This should be changed to `CD_MASK_MESH`, which I believe will fix these messages that we have in the console now: write_customdata error: layer '':7 - can't be written to file brecht: This should be changed to `CD_MASK_MESH`, which I believe will fix these messages that we have…
				BKE_mesh_free(new_mesh);

				if (mesh->flag & ME_REMESH_REPROJECT_PAINT_MASK) {
				BKE_remesh_reproject_paint_mask(mesh, obj_mesh_copy);
				BKE_mesh_free(obj_mesh_copy);
				}

				if (mesh->flag & ME_REMESH_SMOOTH_NORMALS) {
				BKE_mesh_smooth_flag_set(ob, true);
				}

				if (ob->mode == OB_MODE_SCULPT) {
				ED_sculpt_undo_geometry_end(ob);
				}

				BKE_mesh_batch_cache_dirty_tag(ob->data, BKE_MESH_BATCH_DIRTY_ALL);
				DEG_relations_tag_update(bmain);
				DEG_id_tag_update(&ob->id, ID_RECALC_GEOMETRY);
				WM_event_add_notifier(C, NC_GEOM \| ND_DATA, ob->data);

				return OPERATOR_FINISHED;
				}

				void OBJECT_OT_voxel_remesh(wmOperatorType *ot)
				{
				/* identifiers */
				ot->name = "Voxel Remesh";
				ot->description =
				"Calculates a new manifold mesh based on the volume of the current mesh. All data layers "
				"will be lost";
				ot->idname = "OBJECT_OT_voxel_remesh";

				/* api callbacks */
				ot->poll = object_remesh_poll;
				ot->exec = voxel_remesh_exec;

				ot->flag = OPTYPE_REGISTER \| OPTYPE_UNDO;
				}
				brechtUnsubmitted Done Inline Actions Voxel remesh -> Voxel Remesh brecht: Voxel remesh -> Voxel Remesh
				brechtUnsubmitted Done Inline Actions This description could explain better what the operator does and what it is for. Maybe it should also explain that all data layers will be lost. brecht: This description could explain better what the operator does and what it is for. Maybe it…
				brechtUnsubmitted Done Inline Actions This can be called right after `BKE_mesh_nomain_to_mesh`. brecht: This can be called right after `BKE_mesh_nomain_to_mesh`.