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/*
* ***** BEGIN GPL LICENSE BLOCK *****
*
* 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) 2014 Blender Foundation.
* All rights reserved.
*
* Contributor(s): None yet.
*
* ***** END GPL LICENSE BLOCK *****
*
*/
/** \file blender/modifiers/intern/MOD_datatransfer.c
* \ingroup modifiers
*/
#include "BLI_utildefines.h"
#include "BLI_math.h"
#include "DNA_mesh_types.h"
#include "DNA_meshdata_types.h"
#include "DNA_modifier_types.h"
#include "DNA_object_types.h"
#include "BKE_customdata.h"
#include "BKE_object_data_transfer.h"
#include "BKE_DerivedMesh.h"
#include "BKE_library.h"
#include "BKE_mesh_mapping.h"
#include "BKE_mesh_remap.h"
#include "BKE_modifier.h"
#include "BKE_report.h"
#include "MEM_guardedalloc.h"
#include "MOD_util.h"
#include "depsgraph_private.h"
/**************************************
* Modifiers functions. *
**************************************/
static void initData(ModifierData *md)
{
DataTransferModifierData *dtmd = (DataTransferModifierData *) md;
int i;
dtmd->ob_source = NULL;
dtmd->data_types = 0;
dtmd->vmap_mode = MREMAP_MODE_VERT_NEAREST;
dtmd->emap_mode = MREMAP_MODE_EDGE_NEAREST;
dtmd->lmap_mode = MREMAP_MODE_LOOP_NEAREST_POLYNOR;
dtmd->pmap_mode = MREMAP_MODE_POLY_NEAREST;
dtmd->map_max_distance = 1.0f;
dtmd->map_ray_radius = 0.0f;
for (i = 0; i < DT_MULTILAYER_INDEX_MAX; i++) {
dtmd->layers_select_src[i] = DT_LAYERS_ALL_SRC;
dtmd->layers_select_dst[i] = DT_LAYERS_NAME_DST;
}
dtmd->mix_mode = CDT_MIX_TRANSFER;
dtmd->mix_factor = 1.0f;
dtmd->defgrp_name[0] = '\0';
dtmd->flags = MOD_DATATRANSFER_OBSRC_TRANSFORM;
}
static CustomDataMask requiredDataMask(Object *UNUSED(ob), ModifierData *md)
{
DataTransferModifierData *dtmd = (DataTransferModifierData *) md;
CustomDataMask dataMask = 0;
if (dtmd->defgrp_name[0]) {
/* We need vertex groups! */
dataMask |= CD_MASK_MDEFORMVERT;
}
dataMask |= BKE_object_data_transfer_dttypes_to_cdmask(dtmd->data_types);
return dataMask;
}
static bool dependsOnNormals(ModifierData *md)
{
DataTransferModifierData *dtmd = (DataTransferModifierData *) md;
int item_types = BKE_object_data_transfer_get_dttypes_item_types(dtmd->data_types);
if ((item_types & ME_VERT) && (dtmd->vmap_mode & (MREMAP_USE_NORPROJ | MREMAP_USE_NORMAL))) {
return true;
}
if ((item_types & ME_EDGE) && (dtmd->emap_mode & (MREMAP_USE_NORPROJ | MREMAP_USE_NORMAL))) {
return true;
}
if ((item_types & ME_LOOP) && (dtmd->lmap_mode & (MREMAP_USE_NORPROJ | MREMAP_USE_NORMAL))) {
return true;
}
if ((item_types & ME_POLY) && (dtmd->pmap_mode & (MREMAP_USE_NORPROJ | MREMAP_USE_NORMAL))) {
return true;
}
return false;
}
static void foreachObjectLink(ModifierData *md, Object *ob,
void (*walk)(void *userData, Object *ob, Object **obpoin),
void *userData)
{
DataTransferModifierData *dtmd = (DataTransferModifierData *) md;
walk(userData, ob, &dtmd->ob_source);
}
static void foreachIDLink(ModifierData *md, Object *ob, IDWalkFunc walk, void *userData)
{
foreachObjectLink(md, ob, (ObjectWalkFunc)walk, userData);
}
static void updateDepgraph(ModifierData *md, DagForest *forest, struct Scene *UNUSED(scene),
Object *UNUSED(ob), DagNode *obNode)
{
DataTransferModifierData *dtmd = (DataTransferModifierData *) md;
DagNode *curNode;
if (dtmd->ob_source) {
curNode = dag_get_node(forest, dtmd->ob_source);
dag_add_relation(forest, curNode, obNode, DAG_RL_DATA_DATA | DAG_RL_OB_DATA,
"DataTransfer Modifier");
}
}
static bool isDisabled(ModifierData *md, int UNUSED(useRenderParams))
{
DataTransferModifierData *dtmd = (DataTransferModifierData *) md;
/* If no source object, bypass. */
return (dtmd->ob_source == NULL);
}
#define HIGH_POLY_WARNING 10000
static DerivedMesh *applyModifier(ModifierData *md, Object *ob, DerivedMesh *derivedData,
ModifierApplyFlag UNUSED(flag))
{
DataTransferModifierData *dtmd = (DataTransferModifierData *) md;
DerivedMesh *dm = derivedData;
ReportList reports;
const bool invert_vgroup = (dtmd->flags & MOD_DATATRANSFER_INVERT_VGROUP) != 0;
const float max_dist = (dtmd->flags & MOD_DATATRANSFER_MAP_MAXDIST) ? dtmd->map_max_distance : FLT_MAX;
SpaceTransform space_transform_data;
SpaceTransform *space_transform = (dtmd->flags & MOD_DATATRANSFER_OBSRC_TRANSFORM) ? &space_transform_data : NULL;
if (space_transform) {
BLI_SPACE_TRANSFORM_SETUP(space_transform, ob, dtmd->ob_source);
}
BKE_reports_init(&reports, RPT_STORE);
/* Note: no islands precision for now here. */
BKE_object_data_transfer_dm(md->scene, dtmd->ob_source, ob, dm, dtmd->data_types, false,
dtmd->vmap_mode, dtmd->emap_mode, dtmd->lmap_mode, dtmd->pmap_mode,
space_transform, max_dist, dtmd->map_ray_radius, 0.0f,
dtmd->layers_select_src, dtmd->layers_select_dst,
dtmd->mix_mode, dtmd->mix_factor, dtmd->defgrp_name, invert_vgroup, &reports);
if (BKE_reports_contain(&reports, RPT_ERROR)) {
modifier_setError(md, "%s", BKE_reports_string(&reports, RPT_ERROR));
}
else if (dm->getNumVerts(dm) > HIGH_POLY_WARNING || ((Mesh *)(dtmd->ob_source->data))->totvert > HIGH_POLY_WARNING) {
modifier_setError(md, "You are using a rather high poly as source or destination, computation might be slow");
}
return dm;
}
ModifierTypeInfo modifierType_DataTransfer = {
/* name */ "DataTransfer",
/* structName */ "DataTransferModifierData",
/* structSize */ sizeof(DataTransferModifierData),
/* type */ eModifierTypeType_NonGeometrical,
/* flags */ eModifierTypeFlag_AcceptsMesh |
eModifierTypeFlag_SupportsMapping |
eModifierTypeFlag_SupportsEditmode |
eModifierTypeFlag_UsesPreview,
/* copyData */ NULL,
/* deformVerts */ NULL,
/* deformMatrices */ NULL,
/* deformVertsEM */ NULL,
/* deformMatricesEM */ NULL,
/* applyModifier */ applyModifier,
/* applyModifierEM */ NULL,
/* initData */ initData,
/* requiredDataMask */ requiredDataMask,
/* freeData */ NULL,
/* isDisabled */ isDisabled,
/* updateDepgraph */ updateDepgraph,
/* dependsOnTime */ NULL,
/* dependsOnNormals */ dependsOnNormals,
/* foreachObjectLink */ foreachObjectLink,
/* foreachIDLink */ foreachIDLink,
/* foreachTexLink */ NULL,
};
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