svn merge ^/trunk/blender -r43693:43733
[blender-staging.git] / source / blender / modifiers / intern / MOD_cloth.c
1 /*
2  * ***** BEGIN GPL LICENSE BLOCK *****
3  *
4  * This program is free software; you can redistribute it and/or
5  * modify it under the terms of the GNU General Public License
6  * as published by the Free Software Foundation; either version 2
7  * of the License, or (at your option) any later version.
8  *
9  * This program is distributed in the hope that it will be useful,
10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12  * GNU General Public License for more details.
13  *
14  * You should have received a copy of the GNU General Public License
15  * along with this program; if not, write to the Free Software  Foundation,
16  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
17  *
18  * The Original Code is Copyright (C) 2005 by the Blender Foundation.
19  * All rights reserved.
20  *
21  * Contributor(s): Daniel Dunbar
22  *                 Ton Roosendaal,
23  *                 Ben Batt,
24  *                 Brecht Van Lommel,
25  *                 Campbell Barton
26  *
27  * ***** END GPL LICENSE BLOCK *****
28  *
29  */
30
31 /** \file blender/modifiers/intern/MOD_cloth.c
32  *  \ingroup modifiers
33  */
34
35
36 #include "DNA_cloth_types.h"
37 #include "DNA_scene_types.h"
38 #include "DNA_object_types.h"
39
40 #include "MEM_guardedalloc.h"
41
42 #include "BLI_utildefines.h"
43
44
45 #include "BKE_cloth.h"
46 #include "BKE_cdderivedmesh.h"
47 #include "BKE_global.h"
48 #include "BKE_modifier.h"
49 #include "BKE_pointcache.h"
50
51 #include "depsgraph_private.h"
52
53 #include "MOD_util.h"
54
55 static void initData(ModifierData *md) 
56 {
57         ClothModifierData *clmd = (ClothModifierData*) md;
58         
59         clmd->sim_parms = MEM_callocN(sizeof(ClothSimSettings), "cloth sim parms");
60         clmd->coll_parms = MEM_callocN(sizeof(ClothCollSettings), "cloth coll parms");
61         clmd->point_cache = BKE_ptcache_add(&clmd->ptcaches);
62         
63         /* check for alloc failing */
64         if(!clmd->sim_parms || !clmd->coll_parms || !clmd->point_cache)
65                 return;
66         
67         cloth_init (clmd);
68 }
69
70 static void deformVerts(ModifierData *md, Object *ob, DerivedMesh *derivedData, float (*vertexCos)[3],
71                         int UNUSED(numVerts), int UNUSED(useRenderParams), int UNUSED(isFinalCalc))
72 {
73         DerivedMesh *dm;
74         ClothModifierData *clmd = (ClothModifierData*) md;
75         DerivedMesh *result=NULL;
76         
77         /* check for alloc failing */
78         if(!clmd->sim_parms || !clmd->coll_parms)
79         {
80                 initData(md);
81
82                 if(!clmd->sim_parms || !clmd->coll_parms)
83                         return;
84         }
85
86         dm = get_dm(ob, NULL, derivedData, NULL, 0);
87
88         clothModifier_do(clmd, md->scene, ob, dm, vertexCos);
89
90         if(result) {
91                 result->getVertCos(result, vertexCos);
92                 result->release(result);
93         }
94
95         if(dm != derivedData)
96                 dm->release(dm);
97 }
98
99 static void updateDepgraph(
100                                          ModifierData *md, DagForest *forest, Scene *scene, Object *ob,
101           DagNode *obNode)
102 {
103         ClothModifierData *clmd = (ClothModifierData*) md;
104         
105         Base *base;
106         
107         if(clmd)
108         {
109                 for(base = scene->base.first; base; base= base->next) 
110                 {
111                         Object *ob1= base->object;
112                         if(ob1 != ob)
113                         {
114                                 CollisionModifierData *coll_clmd = (CollisionModifierData *)modifiers_findByType(ob1, eModifierType_Collision);
115                                 if(coll_clmd)
116                                 {
117                                         DagNode *curNode = dag_get_node(forest, ob1);
118                                         dag_add_relation(forest, curNode, obNode, DAG_RL_DATA_DATA|DAG_RL_OB_DATA, "Cloth Collision");
119                                 }
120                         }
121                 }
122         }
123 }
124
125 static CustomDataMask requiredDataMask(Object *UNUSED(ob), ModifierData *md)
126 {
127         CustomDataMask dataMask = 0;
128         ClothModifierData *clmd = (ClothModifierData*)md;
129
130         if(cloth_uses_vgroup(clmd))
131                 dataMask |= CD_MASK_MDEFORMVERT;
132
133         if(clmd->sim_parms->shapekey_rest != 0)
134                 dataMask |= CD_MASK_CLOTH_ORCO;
135
136         return dataMask;
137 }
138
139 static void copyData(ModifierData *md, ModifierData *target)
140 {
141         ClothModifierData *clmd = (ClothModifierData*) md;
142         ClothModifierData *tclmd = (ClothModifierData*) target;
143
144         if(tclmd->sim_parms) {
145                 if(tclmd->sim_parms->effector_weights)
146                         MEM_freeN(tclmd->sim_parms->effector_weights);
147                 MEM_freeN(tclmd->sim_parms);
148         }
149
150         if(tclmd->coll_parms)
151                 MEM_freeN(tclmd->coll_parms);
152         
153         BKE_ptcache_free_list(&tclmd->ptcaches);
154         tclmd->point_cache = NULL;
155
156         tclmd->sim_parms = MEM_dupallocN(clmd->sim_parms);
157         if(clmd->sim_parms->effector_weights)
158                 tclmd->sim_parms->effector_weights = MEM_dupallocN(clmd->sim_parms->effector_weights);
159         tclmd->coll_parms = MEM_dupallocN(clmd->coll_parms);
160         tclmd->point_cache = BKE_ptcache_copy_list(&tclmd->ptcaches, &clmd->ptcaches);
161         tclmd->clothObject = NULL;
162 }
163
164 static int dependsOnTime(ModifierData *UNUSED(md))
165 {
166         return 1;
167 }
168
169 static void freeData(ModifierData *md)
170 {
171         ClothModifierData *clmd = (ClothModifierData*) md;
172         
173         if (clmd) 
174         {
175                 if(G.rt > 0)
176                         printf("clothModifier_freeData\n");
177                 
178                 cloth_free_modifier_extern (clmd);
179                 
180                 if(clmd->sim_parms) {
181                         if(clmd->sim_parms->effector_weights)
182                                 MEM_freeN(clmd->sim_parms->effector_weights);
183                         MEM_freeN(clmd->sim_parms);
184                 }
185                 if(clmd->coll_parms)
186                         MEM_freeN(clmd->coll_parms);    
187                 
188                 BKE_ptcache_free_list(&clmd->ptcaches);
189                 clmd->point_cache = NULL;
190         }
191 }
192
193 static void foreachIDLink(ModifierData *md, Object *ob,
194                                            IDWalkFunc walk, void *userData)
195 {
196         ClothModifierData *clmd = (ClothModifierData*) md;
197
198         if(clmd->coll_parms) {
199                 walk(userData, ob, (ID **)&clmd->coll_parms->group);
200         }
201
202         if(clmd->sim_parms && clmd->sim_parms->effector_weights) {
203                 walk(userData, ob, (ID **)&clmd->sim_parms->effector_weights->group);
204         }
205 }
206
207 ModifierTypeInfo modifierType_Cloth = {
208         /* name */              "Cloth",
209         /* structName */        "ClothModifierData",
210         /* structSize */        sizeof(ClothModifierData),
211         /* type */              eModifierTypeType_OnlyDeform,
212         /* flags */             eModifierTypeFlag_AcceptsMesh
213                                                         | eModifierTypeFlag_UsesPointCache
214                                                         | eModifierTypeFlag_Single,
215
216         /* copyData */          copyData,
217         /* deformVerts */       deformVerts,
218         /* deformMatrices */    NULL,
219         /* deformVertsEM */     NULL,
220         /* deformMatricesEM */  NULL,
221         /* applyModifier */     NULL,
222         /* applyModifierEM */   NULL,
223         /* initData */          initData,
224         /* requiredDataMask */  requiredDataMask,
225         /* freeData */          freeData,
226         /* isDisabled */        NULL,
227         /* updateDepgraph */    updateDepgraph,
228         /* dependsOnTime */     dependsOnTime,
229         /* dependsOnNormals */  NULL,
230         /* foreachObjectLink */ NULL,
231         /* foreachIDLink */     foreachIDLink,
232         /* foreachTexLink */    NULL,
233 };