1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
|
/*
* 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) 2011 by Bastien Montagne.
* All rights reserved.
*/
/** \file
* \ingroup modifiers
*/
#include "BLI_utildefines.h"
#include "BLI_ghash.h"
#include "BLI_listbase.h"
#include "BLI_rand.h"
#include "DNA_color_types.h" /* CurveMapping. */
#include "DNA_mesh_types.h"
#include "DNA_meshdata_types.h"
#include "DNA_modifier_types.h"
#include "DNA_object_types.h"
#include "BKE_colortools.h" /* CurveMapping. */
#include "BKE_deform.h"
#include "BKE_lib_query.h"
#include "BKE_modifier.h"
#include "BKE_texture.h" /* Texture masking. */
#include "DEG_depsgraph_build.h"
#include "DEG_depsgraph_query.h"
#include "MEM_guardedalloc.h"
#include "MOD_modifiertypes.h"
#include "MOD_weightvg_util.h"
/**************************************
* Modifiers functions. *
**************************************/
static void initData(ModifierData *md)
{
WeightVGEditModifierData *wmd = (WeightVGEditModifierData *)md;
wmd->edit_flags = 0;
wmd->falloff_type = MOD_WVG_MAPPING_NONE;
wmd->default_weight = 0.0f;
wmd->cmap_curve = BKE_curvemapping_add(1, 0.0, 0.0, 1.0, 1.0);
BKE_curvemapping_initialize(wmd->cmap_curve);
wmd->rem_threshold = 0.01f;
wmd->add_threshold = 0.01f;
wmd->mask_constant = 1.0f;
wmd->mask_tex_use_channel = MOD_WVG_MASK_TEX_USE_INT; /* Use intensity by default. */
wmd->mask_tex_mapping = MOD_DISP_MAP_LOCAL;
}
static void freeData(ModifierData *md)
{
WeightVGEditModifierData *wmd = (WeightVGEditModifierData *)md;
BKE_curvemapping_free(wmd->cmap_curve);
}
static void copyData(const ModifierData *md, ModifierData *target, const int flag)
{
const WeightVGEditModifierData *wmd = (const WeightVGEditModifierData *)md;
WeightVGEditModifierData *twmd = (WeightVGEditModifierData *)target;
modifier_copyData_generic(md, target, flag);
twmd->cmap_curve = BKE_curvemapping_copy(wmd->cmap_curve);
}
static void requiredDataMask(Object *UNUSED(ob),
ModifierData *md,
CustomData_MeshMasks *r_cddata_masks)
{
WeightVGEditModifierData *wmd = (WeightVGEditModifierData *)md;
/* We need vertex groups! */
r_cddata_masks->vmask |= CD_MASK_MDEFORMVERT;
/* Ask for UV coordinates if we need them. */
if (wmd->mask_tex_mapping == MOD_DISP_MAP_UV) {
r_cddata_masks->fmask |= CD_MASK_MTFACE;
}
/* No need to ask for CD_PREVIEW_MLOOPCOL... */
}
static bool dependsOnTime(ModifierData *md)
{
WeightVGEditModifierData *wmd = (WeightVGEditModifierData *)md;
if (wmd->mask_texture) {
return BKE_texture_dependsOnTime(wmd->mask_texture);
}
return false;
}
static void foreachObjectLink(ModifierData *md, Object *ob, ObjectWalkFunc walk, void *userData)
{
WeightVGEditModifierData *wmd = (WeightVGEditModifierData *)md;
walk(userData, ob, &wmd->mask_tex_map_obj, IDWALK_CB_NOP);
}
static void foreachIDLink(ModifierData *md, Object *ob, IDWalkFunc walk, void *userData)
{
WeightVGEditModifierData *wmd = (WeightVGEditModifierData *)md;
walk(userData, ob, (ID **)&wmd->mask_texture, IDWALK_CB_USER);
foreachObjectLink(md, ob, (ObjectWalkFunc)walk, userData);
}
static void foreachTexLink(ModifierData *md, Object *ob, TexWalkFunc walk, void *userData)
{
walk(userData, ob, md, "mask_texture");
}
static void updateDepsgraph(ModifierData *md, const ModifierUpdateDepsgraphContext *ctx)
{
WeightVGEditModifierData *wmd = (WeightVGEditModifierData *)md;
if (wmd->mask_tex_map_obj != NULL && wmd->mask_tex_mapping == MOD_DISP_MAP_OBJECT) {
DEG_add_object_relation(
ctx->node, wmd->mask_tex_map_obj, DEG_OB_COMP_TRANSFORM, "WeightVGEdit Modifier");
DEG_add_modifier_to_transform_relation(ctx->node, "WeightVGEdit Modifier");
}
else if (wmd->mask_tex_mapping == MOD_DISP_MAP_GLOBAL) {
DEG_add_modifier_to_transform_relation(ctx->node, "WeightVGEdit Modifier");
}
if (wmd->mask_texture != NULL) {
DEG_add_generic_id_relation(ctx->node, &wmd->mask_texture->id, "WeightVGEdit Modifier");
}
}
static bool isDisabled(const struct Scene *UNUSED(scene),
ModifierData *md,
bool UNUSED(useRenderParams))
{
WeightVGEditModifierData *wmd = (WeightVGEditModifierData *)md;
/* If no vertex group, bypass. */
return (wmd->defgrp_name[0] == '\0');
}
static Mesh *applyModifier(ModifierData *md, const ModifierEvalContext *ctx, Mesh *mesh)
{
BLI_assert(mesh != NULL);
WeightVGEditModifierData *wmd = (WeightVGEditModifierData *)md;
MDeformVert *dvert = NULL;
MDeformWeight **dw = NULL;
float *org_w; /* Array original weights. */
float *new_w; /* Array new weights. */
int i;
const bool invert_vgroup_mask = (wmd->edit_flags & MOD_WVG_EDIT_INVERT_VGROUP_MASK) != 0;
/* Flags. */
const bool do_add = (wmd->edit_flags & MOD_WVG_EDIT_ADD2VG) != 0;
const bool do_rem = (wmd->edit_flags & MOD_WVG_EDIT_REMFVG) != 0;
/* Only do weight-preview in Object, Sculpt and Pose modes! */
#if 0
const bool do_prev = (wmd->modifier.mode & eModifierMode_DoWeightPreview);
#endif
/* Get number of verts. */
const int numVerts = mesh->totvert;
/* Check if we can just return the original mesh.
* Must have verts and therefore verts assigned to vgroups to do anything useful!
*/
if ((numVerts == 0) || BLI_listbase_is_empty(&ctx->object->defbase)) {
return mesh;
}
/* Get vgroup idx from its name. */
const int defgrp_index = BKE_object_defgroup_name_index(ctx->object, wmd->defgrp_name);
if (defgrp_index == -1) {
return mesh;
}
const bool has_mdef = CustomData_has_layer(&mesh->vdata, CD_MDEFORMVERT);
/* If no vertices were ever added to an object's vgroup, dvert might be NULL. */
if (!has_mdef) {
/* If this modifier is not allowed to add vertices, just return. */
if (!do_add) {
return mesh;
}
}
if (has_mdef) {
dvert = CustomData_duplicate_referenced_layer(&mesh->vdata, CD_MDEFORMVERT, numVerts);
}
else {
/* Add a valid data layer! */
dvert = CustomData_add_layer(&mesh->vdata, CD_MDEFORMVERT, CD_CALLOC, NULL, numVerts);
}
/* Ultimate security check. */
if (!dvert) {
return mesh;
}
mesh->dvert = dvert;
/* Get org weights, assuming 0.0 for vertices not in given vgroup. */
org_w = MEM_malloc_arrayN(numVerts, sizeof(float), "WeightVGEdit Modifier, org_w");
new_w = MEM_malloc_arrayN(numVerts, sizeof(float), "WeightVGEdit Modifier, new_w");
dw = MEM_malloc_arrayN(numVerts, sizeof(MDeformWeight *), "WeightVGEdit Modifier, dw");
for (i = 0; i < numVerts; i++) {
dw[i] = BKE_defvert_find_index(&dvert[i], defgrp_index);
if (dw[i]) {
org_w[i] = new_w[i] = dw[i]->weight;
}
else {
org_w[i] = new_w[i] = wmd->default_weight;
}
}
/* Do mapping. */
if (wmd->falloff_type != MOD_WVG_MAPPING_NONE) {
RNG *rng = NULL;
if (wmd->falloff_type == MOD_WVG_MAPPING_RANDOM) {
rng = BLI_rng_new_srandom(BLI_ghashutil_strhash(ctx->object->id.name + 2));
}
weightvg_do_map(numVerts, new_w, wmd->falloff_type, wmd->cmap_curve, rng);
if (rng) {
BLI_rng_free(rng);
}
}
/* Invert resulting weights */
if ((wmd->edit_flags & MOD_WVG_INVERT_FALLOFF) != 0) {
for (i = 0; i < numVerts; i++) {
new_w[i] = 1.0f - new_w[i];
}
}
/* Do masking. */
struct Scene *scene = DEG_get_evaluated_scene(ctx->depsgraph);
weightvg_do_mask(ctx,
numVerts,
NULL,
org_w,
new_w,
ctx->object,
mesh,
wmd->mask_constant,
wmd->mask_defgrp_name,
scene,
wmd->mask_texture,
wmd->mask_tex_use_channel,
wmd->mask_tex_mapping,
wmd->mask_tex_map_obj,
wmd->mask_tex_uvlayer_name,
invert_vgroup_mask);
/* Update/add/remove from vgroup. */
weightvg_update_vg(dvert,
defgrp_index,
dw,
numVerts,
NULL,
org_w,
do_add,
wmd->add_threshold,
do_rem,
wmd->rem_threshold);
/* If weight preview enabled... */
#if 0 /* XXX Currently done in mod stack :/ */
if (do_prev) {
DM_update_weight_mcol(ob, dm, 0, org_w, 0, NULL);
}
#endif
/* Freeing stuff. */
MEM_freeN(org_w);
MEM_freeN(new_w);
MEM_freeN(dw);
/* Return the vgroup-modified mesh. */
return mesh;
}
ModifierTypeInfo modifierType_WeightVGEdit = {
/* name */ "VertexWeightEdit",
/* structName */ "WeightVGEditModifierData",
/* structSize */ sizeof(WeightVGEditModifierData),
/* type */ eModifierTypeType_NonGeometrical,
/* flags */ eModifierTypeFlag_AcceptsMesh | eModifierTypeFlag_SupportsMapping |
eModifierTypeFlag_SupportsEditmode | eModifierTypeFlag_UsesPreview,
/* copyData */ copyData,
/* deformVerts */ NULL,
/* deformMatrices */ NULL,
/* deformVertsEM */ NULL,
/* deformMatricesEM */ NULL,
/* applyModifier */ applyModifier,
/* initData */ initData,
/* requiredDataMask */ requiredDataMask,
/* freeData */ freeData,
/* isDisabled */ isDisabled,
/* updateDepsgraph */ updateDepsgraph,
/* dependsOnTime */ dependsOnTime,
/* dependsOnNormals */ NULL,
/* foreachObjectLink */ foreachObjectLink,
/* foreachIDLink */ foreachIDLink,
/* foreachTexLink */ foreachTexLink,
/* freeRuntimeData */ NULL,
};
|