2.50: svn merge https://svn.blender.org/svnroot/bf-blender/trunk/blender -r19323...
[blender-staging.git] / source / blender / editors / sculpt_paint / sculpt.c
1 /*
2  * $Id: sculptmode.c 18309 2009-01-04 07:47:11Z nicholasbishop $
3  *
4  * ***** BEGIN GPL LICENSE BLOCK *****
5  *
6  * This program is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU General Public License
8  * as published by the Free Software Foundation; either version 2
9  * of the License, or (at your option) any later version.
10  *
11  * This program is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14  * GNU General Public License for more details.
15  *
16  * You should have received a copy of the GNU General Public License
17  * along with this program; if not, write to the Free Software  Foundation,
18  * Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
19  *
20  * The Original Code is Copyright (C) 2006 by Nicholas Bishop
21  * All rights reserved.
22  *
23  * The Original Code is: all of this file.
24  *
25  * Contributor(s): none yet.
26  *
27  * ***** END GPL LICENSE BLOCK *****
28  *
29  * Implements the Sculpt Mode tools
30  *
31  */
32
33 #include "MEM_guardedalloc.h"
34
35 #include "BLI_arithb.h"
36 #include "BLI_blenlib.h"
37 #include "BLI_dynstr.h"
38
39 #include "DNA_armature_types.h"
40 #include "DNA_brush_types.h"
41 #include "DNA_image_types.h"
42 #include "DNA_key_types.h"
43 #include "DNA_mesh_types.h"
44 #include "DNA_meshdata_types.h"
45 #include "DNA_modifier_types.h"
46 #include "DNA_object_types.h"
47 #include "DNA_screen_types.h"
48 #include "DNA_scene_types.h"
49 #include "DNA_texture_types.h"
50 #include "DNA_view3d_types.h"
51 #include "DNA_userdef_types.h"
52 #include "DNA_color_types.h"
53
54 #include "BKE_brush.h"
55 #include "BKE_context.h"
56 #include "BKE_customdata.h"
57 #include "BKE_DerivedMesh.h"
58 #include "BKE_depsgraph.h"
59 #include "BKE_global.h"
60 #include "BKE_image.h"
61 #include "BKE_key.h"
62 #include "BKE_library.h"
63 #include "BKE_main.h"
64 #include "BKE_mesh.h"
65 #include "BKE_modifier.h"
66 #include "BKE_multires.h"
67 #include "BKE_sculpt.h"
68 #include "BKE_texture.h"
69 #include "BKE_utildefines.h"
70 #include "BKE_colortools.h"
71
72 #include "BIF_gl.h"
73 #include "BIF_glutil.h"
74
75 #include "WM_api.h"
76 #include "WM_types.h"
77 #include "ED_screen.h"
78 #include "ED_sculpt.h"
79 #include "ED_space_api.h"
80 #include "ED_util.h"
81 #include "ED_view3d.h"
82 #include "sculpt_intern.h"
83
84 #include "RNA_access.h"
85 #include "RNA_define.h"
86
87 #include "IMB_imbuf_types.h"
88
89 #include "RE_render_ext.h"
90 #include "RE_shader_ext.h" /*for multitex_ext*/
91
92 #include "GPU_draw.h"
93
94 #include <math.h>
95 #include <stdlib.h>
96 #include <string.h>
97
98 /* Number of vertices to average in order to determine the flatten distance */
99 #define FLATTEN_SAMPLE_SIZE 10
100
101 /* ===== STRUCTS =====
102  *
103  */
104
105 /* ActiveData stores an Index into the mvert array of Mesh, plus Fade, which
106    stores how far the vertex is from the brush center, scaled to the range [0,1]. */
107 typedef struct ActiveData {
108         struct ActiveData *next, *prev;
109         unsigned int Index;
110         float Fade;
111         float dist;
112 } ActiveData;
113
114 typedef enum StrokeFlags {
115         CLIP_X = 1,
116         CLIP_Y = 2,
117         CLIP_Z = 4
118 } StrokeFlags;
119
120 /* Cache stroke properties. Used because
121    RNA property lookup isn't particularly fast.
122
123    For descriptions of these settings, check the operator properties.
124 */
125 typedef struct StrokeCache {
126         /* Invariants */
127         float radius;
128         float scale[3];
129         int flag;
130         float clip_tolerance[3];
131         int initial_mouse[2];
132         float depth;
133
134         /* Variants */
135         float true_location[3];
136         float location[3];
137         float flip;
138         float pressure;
139         int mouse[2];
140
141         /* The rest is temporary storage that isn't saved as a property */
142
143         int first_time; /* Beginning of stroke may do some things special */
144
145         ViewContext vc;
146         bglMats *mats;
147
148         float *layer_disps; /* Displacements for each vertex */
149         float (*mesh_store)[3]; /* Copy of the mesh vertices' locations */
150         short (*orig_norms)[3]; /* Copy of the mesh vertices' normals */
151         float rotation; /* Texture rotation (radians) for anchored and rake modes */
152         int pixel_radius, previous_pixel_radius;
153         ListBase grab_active_verts[8]; /* The same list of verts is used throught grab stroke */
154         float grab_delta[3], grab_delta_symmetry[3];
155         float old_grab_location[3];
156         int symmetry; /* Symmetry index between 0 and 7 */
157         float view_normal[3], view_normal_symmetry[3];
158         int last_dot[2]; /* Last location of stroke application */
159         int last_rake[2]; /* Last location of updating rake rotation */
160 } StrokeCache;
161
162 typedef struct RectNode {
163         struct RectNode *next, *prev;
164         rcti r;
165 } RectNode;
166
167 /* Used to store to 2D screen coordinates of each vertex in the mesh. */
168 typedef struct ProjVert {
169         short co[2];
170         
171         /* Used to mark whether a vertex is inside a rough bounding box
172            containing the brush. */
173         char inside;
174 } ProjVert;
175
176 /* ===== OPENGL =====
177  *
178  * Simple functions to get data from the GL
179  */
180
181 /* Uses window coordinates (x,y) and depth component z to find a point in
182    modelspace */
183 static void unproject(bglMats *mats, float out[3], const short x, const short y, const float z)
184 {
185         double ux, uy, uz;
186
187         gluUnProject(x,y,z, mats->modelview, mats->projection,
188                      (GLint *)mats->viewport, &ux, &uy, &uz );
189         out[0] = ux;
190         out[1] = uy;
191         out[2] = uz;
192 }
193
194 /* Convert a point in model coordinates to 2D screen coordinates. */
195 static void projectf(bglMats *mats, const float v[3], float p[2])
196 {
197         double ux, uy, uz;
198
199         gluProject(v[0],v[1],v[2], mats->modelview, mats->projection,
200                    (GLint *)mats->viewport, &ux, &uy, &uz);
201         p[0]= ux;
202         p[1]= uy;
203 }
204
205 static void project(bglMats *mats, const float v[3], short p[2])
206 {
207         float f[2];
208         projectf(mats, v, f);
209
210         p[0]= f[0];
211         p[1]= f[1];
212 }
213
214 /* ===== Sculpting =====
215  *
216  */
217
218 /* Return modified brush size. Uses current tablet pressure (if available) to
219    shrink the brush. Skipped for grab brush because only the first mouse down
220    size is used, which is small if the user has just touched the pen to the
221    tablet */
222 static char brush_size(Sculpt *sd)
223 {
224         float size= sd->brush->size;
225         
226         if((sd->brush->sculpt_tool != SCULPT_TOOL_GRAB) && (sd->brush->flag & BRUSH_SIZE_PRESSURE))
227                 size *= sd->session->cache->pressure;
228
229         return size;
230 }
231
232 /* Return modified brush strength. Includes the direction of the brush, positive
233    values pull vertices, negative values push. Uses tablet pressure and a
234    special multiplier found experimentally to scale the strength factor. */
235 static float brush_strength(Sculpt *sd, StrokeCache *cache)
236 {
237         float dir= sd->brush->flag & BRUSH_DIR_IN ? -1 : 1;
238         float pressure= 1;
239         float flip= cache->flip ? -1:1;
240         float anchored = sd->brush->flag & BRUSH_ANCHORED ? 25 : 1;
241
242         if(sd->brush->flag & BRUSH_ALPHA_PRESSURE)
243                 pressure *= cache->pressure;
244         
245         switch(sd->brush->sculpt_tool){
246         case SCULPT_TOOL_DRAW:
247         case SCULPT_TOOL_LAYER:
248                 return sd->brush->alpha / 50.0f * dir * pressure * flip * anchored; /*XXX: not sure why? multiplied by G.vd->grid */;
249         case SCULPT_TOOL_SMOOTH:
250                 return sd->brush->alpha / .5 * pressure * anchored;
251         case SCULPT_TOOL_PINCH:
252                 return sd->brush->alpha / 10.0f * dir * pressure * flip * anchored;
253         case SCULPT_TOOL_GRAB:
254                 return 1;
255         case SCULPT_TOOL_INFLATE:
256                 return sd->brush->alpha / 50.0f * dir * pressure * flip * anchored;
257         case SCULPT_TOOL_FLATTEN:
258                 return sd->brush->alpha / 5.0f * pressure * anchored;
259         default:
260                 return 0;
261         }
262 }
263
264 /* For clipping against a mirror modifier */
265 static void sculpt_clip(StrokeCache *cache, float *co, const float val[3])
266 {
267         int i;
268         for(i=0; i<3; ++i) {
269                 if((cache->flag & (CLIP_X << i)) && (fabs(co[i]) <= cache->clip_tolerance[i]))
270                         co[i]= 0.0f;
271                 else
272                         co[i]= val[i];
273         }               
274 }
275
276 static void sculpt_axislock(Sculpt *sd, float *co)
277 {
278         if(sd->flags == (SCULPT_LOCK_X|SCULPT_LOCK_Y|SCULPT_LOCK_Z))
279                 return;
280
281         if(sd->session->cache->vc.v3d->twmode == V3D_MANIP_LOCAL) {
282                 float mat[3][3], imat[3][3];
283                 Mat3CpyMat4(mat, sd->session->cache->vc.obact->obmat);
284                 Mat3Inv(imat, mat);
285                 Mat3MulVecfl(mat, co);
286                 if (sd->flags & SCULPT_LOCK_X) co[0] = 0.0;
287                 if (sd->flags & SCULPT_LOCK_Y) co[1] = 0.0;
288                 if (sd->flags & SCULPT_LOCK_Z) co[2] = 0.0;             
289                 Mat3MulVecfl(imat, co);
290         } else {
291                 if (sd->flags & SCULPT_LOCK_X) co[0] = 0.0;
292                 if (sd->flags & SCULPT_LOCK_Y) co[1] = 0.0;
293                 if (sd->flags & SCULPT_LOCK_Z) co[2] = 0.0;             
294         }
295 }
296
297 static void add_norm_if(float view_vec[3], float out[3], float out_flip[3], const short no[3])
298 {
299         float fno[3] = {no[0], no[1], no[2]};
300
301         Normalize(fno);
302
303         if((Inpf(view_vec, fno)) > 0) {
304                 VecAddf(out, out, fno);
305         } else {
306                 VecAddf(out_flip, out_flip, fno); /* out_flip is used when out is {0,0,0} */
307         }
308 }
309
310 /* Currently only for the draw brush; finds average normal for all active
311    vertices */
312 static void calc_area_normal(Sculpt *sd, float out[3], const ListBase* active_verts)
313 {
314         StrokeCache *cache = sd->session->cache;
315         ActiveData *node = active_verts->first;
316         const int view = 0; /* XXX: should probably be a flag, not number: sd->brush_type==SCULPT_TOOL_DRAW ? sculptmode_brush()->view : 0; */
317         float out_flip[3];
318         float *out_dir = cache->view_normal_symmetry;
319         
320         out[0]=out[1]=out[2] = out_flip[0]=out_flip[1]=out_flip[2] = 0;
321
322         if(sd->brush->flag & BRUSH_ANCHORED) {
323                 for(; node; node = node->next)
324                         add_norm_if(out_dir, out, out_flip, cache->orig_norms[node->Index]);
325         }
326         else {
327                 for(; node; node = node->next)
328                         add_norm_if(out_dir, out, out_flip, sd->session->mvert[node->Index].no);
329         }
330
331         if (out[0]==0.0 && out[1]==0.0 && out[2]==0.0) {
332                 VECCOPY(out, out_flip);
333         }
334         
335         Normalize(out);
336
337         if(out_dir) {
338                 out[0] = out_dir[0] * view + out[0] * (10-view);
339                 out[1] = out_dir[1] * view + out[1] * (10-view);
340                 out[2] = out_dir[2] * view + out[2] * (10-view);
341         }
342         
343         Normalize(out);
344 }
345
346 static void do_draw_brush(Sculpt *sd, SculptSession *ss, const ListBase* active_verts)
347 {
348         float area_normal[3];
349         ActiveData *node= active_verts->first;
350
351         calc_area_normal(sd, area_normal, active_verts);
352         
353         sculpt_axislock(sd, area_normal);
354         
355         while(node){
356                 float *co= ss->mvert[node->Index].co;
357                 
358                 const float val[3]= {co[0]+area_normal[0]*node->Fade*ss->cache->scale[0],
359                                      co[1]+area_normal[1]*node->Fade*ss->cache->scale[1],
360                                      co[2]+area_normal[2]*node->Fade*ss->cache->scale[2]};
361                                      
362                 sculpt_clip(ss->cache, co, val);
363                 
364                 node= node->next;
365         }
366 }
367
368 /* For the smooth brush, uses the neighboring vertices around vert to calculate
369    a smoothed location for vert. Skips corner vertices (used by only one
370    polygon.) */
371 static void neighbor_average(SculptSession *ss, float avg[3], const int vert)
372 {
373         int i, skip= -1, total=0;
374         IndexNode *node= ss->fmap[vert].first;
375         char ncount= BLI_countlist(&ss->fmap[vert]);
376         MFace *f;
377
378         avg[0] = avg[1] = avg[2] = 0;
379                 
380         /* Don't modify corner vertices */
381         if(ncount==1) {
382                 VecCopyf(avg, ss->mvert[vert].co);
383                 return;
384         }
385
386         while(node){
387                 f= &ss->mface[node->index];
388                 
389                 if(f->v4) {
390                         skip= (f->v1==vert?2:
391                                f->v2==vert?3:
392                                f->v3==vert?0:
393                                f->v4==vert?1:-1);
394                 }
395
396                 for(i=0; i<(f->v4?4:3); ++i) {
397                         if(i != skip && (ncount!=2 || BLI_countlist(&ss->fmap[(&f->v1)[i]]) <= 2)) {
398                                 VecAddf(avg, avg, ss->mvert[(&f->v1)[i]].co);
399                                 ++total;
400                         }
401                 }
402
403                 node= node->next;
404         }
405
406         if(total>0)
407                 VecMulf(avg, 1.0f / total);
408         else
409                 VecCopyf(avg, ss->mvert[vert].co);
410 }
411
412 static void do_smooth_brush(SculptSession *ss, const ListBase* active_verts)
413 {
414         ActiveData *node= active_verts->first;
415
416         while(node){
417                 float *co= ss->mvert[node->Index].co;
418                 float avg[3], val[3];
419
420                 neighbor_average(ss, avg, node->Index);
421                 val[0] = co[0]+(avg[0]-co[0])*node->Fade;
422                 val[1] = co[1]+(avg[1]-co[1])*node->Fade;
423                 val[2] = co[2]+(avg[2]-co[2])*node->Fade;
424
425                 sculpt_clip(ss->cache, co, val);
426                 node= node->next;
427         }
428 }
429
430 static void do_pinch_brush(SculptSession *ss, const ListBase* active_verts)
431 {
432         ActiveData *node= active_verts->first;
433
434         while(node) {
435                 float *co= ss->mvert[node->Index].co;
436                 const float val[3]= {co[0]+(ss->cache->location[0]-co[0])*node->Fade,
437                                      co[1]+(ss->cache->location[1]-co[1])*node->Fade,
438                                      co[2]+(ss->cache->location[2]-co[2])*node->Fade};
439                 sculpt_clip(ss->cache, co, val);
440                 node= node->next;
441         }
442 }
443
444 static void do_grab_brush(Sculpt *sd, SculptSession *ss)
445 {
446         ActiveData *node= ss->cache->grab_active_verts[ss->cache->symmetry].first;
447         float add[3];
448         float grab_delta[3];
449         
450         VecCopyf(grab_delta, ss->cache->grab_delta_symmetry);
451         sculpt_axislock(sd, grab_delta);
452         
453         while(node) {
454                 float *co= ss->mvert[node->Index].co;
455                 
456                 VecCopyf(add, grab_delta);
457                 VecMulf(add, node->Fade);
458                 VecAddf(add, add, co);
459                 sculpt_clip(ss->cache, co, add);
460
461                 node= node->next;
462         }
463         
464 }
465
466 static void do_layer_brush(Sculpt *sd, SculptSession *ss, const ListBase *active_verts)
467 {
468         float area_normal[3];
469         ActiveData *node= active_verts->first;
470         const float bstr= brush_strength(sd, ss->cache);
471
472         calc_area_normal(sd, area_normal, active_verts);
473
474         while(node){
475                 float *disp= &ss->cache->layer_disps[node->Index];
476                 
477                 if((bstr > 0 && *disp < bstr) ||
478                   (bstr < 0 && *disp > bstr)) {
479                         float *co= ss->mvert[node->Index].co;
480                         
481                         *disp+= node->Fade;
482
483                         if(bstr < 0) {
484                                 if(*disp < bstr)
485                                         *disp = bstr;
486                         } else {
487                                 if(*disp > bstr)
488                                         *disp = bstr;
489                         }
490
491                         {
492                                 const float val[3]= {ss->cache->mesh_store[node->Index][0]+area_normal[0] * *disp*ss->cache->scale[0],
493                                                      ss->cache->mesh_store[node->Index][1]+area_normal[1] * *disp*ss->cache->scale[1],
494                                                      ss->cache->mesh_store[node->Index][2]+area_normal[2] * *disp*ss->cache->scale[2]};
495                                 sculpt_clip(ss->cache, co, val);
496                         }
497                 }
498
499                 node= node->next;
500         }
501 }
502
503 static void do_inflate_brush(SculptSession *ss, const ListBase *active_verts)
504 {
505         ActiveData *node= active_verts->first;
506         float add[3];
507         
508         while(node) {
509                 float *co= ss->mvert[node->Index].co;
510                 short *no= ss->mvert[node->Index].no;
511
512                 add[0]= no[0]/ 32767.0f;
513                 add[1]= no[1]/ 32767.0f;
514                 add[2]= no[2]/ 32767.0f;
515                 VecMulf(add, node->Fade);
516                 add[0]*= ss->cache->scale[0];
517                 add[1]*= ss->cache->scale[1];
518                 add[2]*= ss->cache->scale[2];
519                 VecAddf(add, add, co);
520                 
521                 sculpt_clip(ss->cache, co, add);
522
523                 node= node->next;
524         }
525 }
526
527 static void calc_flatten_center(SculptSession *ss, ActiveData *node, float co[3])
528 {
529         ActiveData *outer[FLATTEN_SAMPLE_SIZE];
530         int i;
531         
532         for(i = 0; i < FLATTEN_SAMPLE_SIZE; ++i)
533                 outer[i] = node;
534                 
535         for(; node; node = node->next) {
536                 for(i = 0; i < FLATTEN_SAMPLE_SIZE; ++i) {
537                         if(node->dist > outer[i]->dist) {
538                                 outer[i] = node;
539                                 break;
540                         }
541                 }
542         }
543         
544         co[0] = co[1] = co[2] = 0.0f;
545         for(i = 0; i < FLATTEN_SAMPLE_SIZE; ++i)
546                 VecAddf(co, co, ss->mvert[outer[i]->Index].co);
547         VecMulf(co, 1.0f / FLATTEN_SAMPLE_SIZE);
548 }
549
550 static void do_flatten_brush(Sculpt *sd, SculptSession *ss, const ListBase *active_verts)
551 {
552         ActiveData *node= active_verts->first;
553         /* area_normal and cntr define the plane towards which vertices are squashed */
554         float area_normal[3];
555         float cntr[3];
556
557         calc_area_normal(sd, area_normal, active_verts);
558         calc_flatten_center(ss, node, cntr);
559
560         while(node){
561                 float *co= ss->mvert[node->Index].co;
562                 float p1[3], sub1[3], sub2[3], intr[3], val[3];
563                 
564                 /* Find the intersection between squash-plane and vertex (along the area normal) */
565                 VecSubf(p1, co, area_normal);
566                 VecSubf(sub1, cntr, p1);
567                 VecSubf(sub2, co, p1);
568                 VecSubf(intr, co, p1);
569                 VecMulf(intr, Inpf(area_normal, sub1) / Inpf(area_normal, sub2));
570                 VecAddf(intr, intr, p1);
571                 
572                 VecSubf(val, intr, co);
573                 VecMulf(val, node->Fade);
574                 VecAddf(val, val, co);
575                 
576                 sculpt_clip(ss->cache, co, val);
577                 
578                 node= node->next;
579         }
580 }
581
582
583 /* Uses symm to selectively flip any axis of a coordinate. */
584 static void flip_coord(float out[3], float in[3], const char symm)
585 {
586         if(symm & SCULPT_SYMM_X)
587                 out[0]= -in[0];
588         else
589                 out[0]= in[0];
590         if(symm & SCULPT_SYMM_Y)
591                 out[1]= -in[1];
592         else
593                 out[1]= in[1];
594         if(symm & SCULPT_SYMM_Z)
595                 out[2]= -in[2];
596         else
597                 out[2]= in[2];
598 }
599
600 /* Get a pixel from the texcache at (px, py) */
601 static unsigned char get_texcache_pixel(const SculptSession *ss, int px, int py)
602 {
603         unsigned *p;
604         p = ss->texcache + py * ss->texcache_side + px;
605         return ((unsigned char*)(p))[0];
606 }
607
608 static float get_texcache_pixel_bilinear(const SculptSession *ss, float u, float v)
609 {
610         int x, y, x2, y2;
611         const int tc_max = ss->texcache_side - 1;
612         float urat, vrat, uopp;
613
614         if(u < 0) u = 0;
615         else if(u >= ss->texcache_side) u = tc_max;
616         if(v < 0) v = 0;
617         else if(v >= ss->texcache_side) v = tc_max;
618
619         x = floor(u);
620         y = floor(v);
621         x2 = x + 1;
622         y2 = y + 1;
623
624         if(x2 > ss->texcache_side) x2 = tc_max;
625         if(y2 > ss->texcache_side) y2 = tc_max;
626         
627         urat = u - x;
628         vrat = v - y;
629         uopp = 1 - urat;
630                 
631         return ((get_texcache_pixel(ss, x, y) * uopp +
632                  get_texcache_pixel(ss, x2, y) * urat) * (1 - vrat) + 
633                 (get_texcache_pixel(ss, x, y2) * uopp +
634                  get_texcache_pixel(ss, x2, y2) * urat) * vrat) / 255.0;
635 }
636
637 /* Return a multiplier for brush strength on a particular vertex. */
638 static float tex_strength(Sculpt *sd, float *point, const float len)
639 {
640         SculptSession *ss= sd->session;
641         Brush *br = sd->brush;
642         float avg= 1;
643
644         if(br->texact==-1 || !br->mtex[br->texact])
645                 avg= 1;
646         else if(br->tex_mode==BRUSH_TEX_3D) {
647                 /* Get strength by feeding the vertex location directly
648                    into a texture */
649                 float jnk;
650                 const float factor= 0.01;
651                 MTex mtex;
652                 memset(&mtex,0,sizeof(MTex));
653                 mtex.tex= br->mtex[br->texact]->tex;
654                 mtex.projx= 1;
655                 mtex.projy= 2;
656                 mtex.projz= 3;
657                 VecCopyf(mtex.size, br->mtex[br->texact]->size);
658                 VecMulf(mtex.size, factor);
659                 if(!sd->texsep)
660                         mtex.size[1]= mtex.size[2]= mtex.size[0];
661                 
662                 externtex(&mtex,point,&avg,&jnk,&jnk,&jnk,&jnk);
663         }
664         else if(ss->texcache) {
665                 const float bsize= ss->cache->pixel_radius * 2;
666                 const float rot= sd->brush->rot + ss->cache->rotation;
667                 int px, py;
668                 float flip[3], point_2d[2];
669
670                 /* If the active area is being applied for symmetry, flip it
671                    across the symmetry axis in order to project it. This insures
672                    that the brush texture will be oriented correctly. */
673                 VecCopyf(flip, point);
674                 flip_coord(flip, flip, ss->cache->symmetry);
675                 projectf(ss->cache->mats, flip, point_2d);
676
677                 /* For Tile and Drag modes, get the 2D screen coordinates of the
678                    and scale them up or down to the texture size. */
679                 if(br->tex_mode==BRUSH_TEX_TILE) {
680                         const int sx= (const int)br->mtex[br->texact]->size[0];
681                         const int sy= (const int)sd->texsep ? br->mtex[br->texact]->size[1] : sx;
682                         
683                         float fx= point_2d[0];
684                         float fy= point_2d[1];
685                         
686                         float angle= atan2(fy, fx) - rot;
687                         float flen= sqrtf(fx*fx + fy*fy);
688                         
689                         if(rot<0.001 && rot>-0.001) {
690                                 px= point_2d[0];
691                                 py= point_2d[1];
692                         } else {
693                                 px= flen * cos(angle) + 2000;
694                                 py= flen * sin(angle) + 2000;
695                         }
696                         if(sx != 1)
697                                 px %= sx-1;
698                         if(sy != 1)
699                                 py %= sy-1;
700                         avg= get_texcache_pixel_bilinear(ss, ss->texcache_side*px/sx, ss->texcache_side*py/sy);
701                 } else {
702                         float fx= (point_2d[0] - ss->cache->mouse[0]) / bsize;
703                         float fy= (point_2d[1] - ss->cache->mouse[1]) / bsize;
704
705                         float angle= atan2(fy, fx) - rot;
706                         float flen= sqrtf(fx*fx + fy*fy);
707                         
708                         fx = flen * cos(angle) + 0.5;
709                         fy = flen * sin(angle) + 0.5;
710
711                         avg= get_texcache_pixel_bilinear(ss, fx * ss->texcache_side, fy * ss->texcache_side);
712                 }
713         }
714
715         avg*= brush_curve_strength(sd->brush, len, ss->cache->radius); /* Falloff curve */
716
717         return avg;
718 }
719
720 /* Mark area around the brush as damaged. projverts are marked if they are
721    inside the area and the damaged rectangle in 2D screen coordinates is 
722    added to damaged_rects. */
723 static void sculpt_add_damaged_rect(SculptSession *ss)
724 {
725         short p[2];
726         RectNode *rn= MEM_mallocN(sizeof(RectNode),"RectNode");
727         const float radius = MAX2(ss->cache->pixel_radius, ss->cache->previous_pixel_radius);
728         unsigned i;
729
730         /* Find center */
731         project(ss->cache->mats, ss->cache->location, p);
732         rn->r.xmin= p[0] - radius;
733         rn->r.ymin= p[1] - radius;
734         rn->r.xmax= p[0] + radius;
735         rn->r.ymax= p[1] + radius;
736
737         BLI_addtail(&ss->damaged_rects, rn);
738
739         /* Update insides */
740         for(i=0; i<ss->totvert; ++i) {
741                 if(!ss->projverts[i].inside) {
742                         if(ss->projverts[i].co[0] > rn->r.xmin && ss->projverts[i].co[1] > rn->r.ymin &&
743                            ss->projverts[i].co[0] < rn->r.xmax && ss->projverts[i].co[1] < rn->r.ymax) {
744                                 ss->projverts[i].inside= 1;
745                         }
746                 }
747                 // XXX: remember to fix this!
748                 // temporary pass
749                 ss->projverts[i].inside = 1;
750         }
751 }
752
753 /* Clears the depth buffer in each modified area. */
754 #if 0
755 static void sculpt_clear_damaged_areas(SculptSession *ss)
756 {
757         RectNode *rn= NULL;
758
759         for(rn = ss->damaged_rects.first; rn; rn = rn->next) {
760                 rcti clp = rn->r;
761                 rcti *win = NULL; /*XXX: &curarea->winrct; */
762                 
763                 clp.xmin += win->xmin;
764                 clp.xmax += win->xmin;
765                 clp.ymin += win->ymin;
766                 clp.ymax += win->ymin;
767                 
768                 if(clp.xmin < win->xmax && clp.xmax > win->xmin &&
769                    clp.ymin < win->ymax && clp.ymax > win->ymin) {
770                         if(clp.xmin < win->xmin) clp.xmin = win->xmin;
771                         if(clp.ymin < win->ymin) clp.ymin = win->ymin;
772                         if(clp.xmax > win->xmax) clp.xmax = win->xmax;
773                         if(clp.ymax > win->ymax) clp.ymax = win->ymax;
774
775                         glScissor(clp.xmin + 1, clp.ymin + 1,
776                                   clp.xmax - clp.xmin - 2,
777                                   clp.ymax - clp.ymin - 2);
778                 }
779                 
780                 glClear(GL_DEPTH_BUFFER_BIT);
781         }
782 }
783 #endif
784 static void do_brush_action(Sculpt *sd, StrokeCache *cache)
785 {
786         SculptSession *ss = sd->session;
787         float av_dist;
788         ListBase active_verts={0,0};
789         ListBase *grab_active_verts = &ss->cache->grab_active_verts[ss->cache->symmetry];
790         ActiveData *adata= 0;
791         float *vert;
792         Mesh *me= NULL; /*XXX: get_mesh(OBACT); */
793         const float bstrength= brush_strength(sd, cache);
794         KeyBlock *keyblock= NULL; /*XXX: ob_get_keyblock(OBACT); */
795         Brush *b = sd->brush;
796         int i;
797
798         sculpt_add_damaged_rect(ss);
799
800         /* Build a list of all vertices that are potentially within the brush's
801            area of influence. Only do this once for the grab brush. */
802         if((b->sculpt_tool != SCULPT_TOOL_GRAB) || cache->first_time) {
803                 for(i=0; i<ss->totvert; ++i) {
804                         /* Projverts.inside provides a rough bounding box */
805                         if(ss->multires || ss->projverts[i].inside) {
806                                 //vert= ss->vertexcosnos ? &ss->vertexcosnos[i*6] : a->verts[i].co;
807                                 vert= ss->mvert[i].co;
808                                 av_dist= VecLenf(ss->cache->location, vert);
809                                 if(av_dist < cache->radius) {
810                                         adata= (ActiveData*)MEM_mallocN(sizeof(ActiveData), "ActiveData");
811
812                                         adata->Index = i;
813                                         /* Fade is used to store the final strength at which the brush
814                                            should modify a particular vertex. */
815                                         adata->Fade= tex_strength(sd, vert, av_dist) * bstrength;
816                                         adata->dist = av_dist;
817
818                                         if(b->sculpt_tool == SCULPT_TOOL_GRAB && cache->first_time)
819                                                 BLI_addtail(grab_active_verts, adata);
820                                         else
821                                                 BLI_addtail(&active_verts, adata);
822                                 }
823                         }
824                 }
825         }
826
827         /* Only act if some verts are inside the brush area */
828         if(active_verts.first || (b->sculpt_tool == SCULPT_TOOL_GRAB && grab_active_verts->first)) {
829                 /* Apply one type of brush action */
830                 switch(b->sculpt_tool){
831                 case SCULPT_TOOL_DRAW:
832                         do_draw_brush(sd, ss, &active_verts);
833                         break;
834                 case SCULPT_TOOL_SMOOTH:
835                         do_smooth_brush(ss, &active_verts);
836                         break;
837                 case SCULPT_TOOL_PINCH:
838                         do_pinch_brush(ss, &active_verts);
839                         break;
840                 case SCULPT_TOOL_INFLATE:
841                         do_inflate_brush(ss, &active_verts);
842                         break;
843                 case SCULPT_TOOL_GRAB:
844                         do_grab_brush(sd, ss);
845                         break;
846                 case SCULPT_TOOL_LAYER:
847                         do_layer_brush(sd, ss, &active_verts);
848                         break;
849                 case SCULPT_TOOL_FLATTEN:
850                         do_flatten_brush(sd, ss, &active_verts);
851                         break;
852                 }
853         
854                 /* Copy the modified vertices from mesh to the active key */
855                 if(keyblock && !ss->multires) {
856                         float *co= keyblock->data;
857                         if(co) {
858                                 if(b->sculpt_tool == SCULPT_TOOL_GRAB)
859                                         adata = grab_active_verts->first;
860                                 else
861                                         adata = active_verts.first;
862
863                                 for(; adata; adata= adata->next)
864                                         if(adata->Index < keyblock->totelem)
865                                                 VecCopyf(&co[adata->Index*3], me->mvert[adata->Index].co);
866                         }
867                 }
868
869                 if(ss->vertexcosnos && !ss->multires)
870                         BLI_freelistN(&active_verts);
871                 else {
872                         if(b->sculpt_tool != SCULPT_TOOL_GRAB)
873                                 addlisttolist(&ss->damaged_verts, &active_verts);
874                 }
875         }
876 }
877
878 /* Flip all the editdata across the axis/axes specified by symm. Used to
879    calculate multiple modifications to the mesh when symmetry is enabled. */
880 static void calc_brushdata_symm(StrokeCache *cache, const char symm)
881 {
882         flip_coord(cache->location, cache->true_location, symm);
883         flip_coord(cache->view_normal_symmetry, cache->view_normal, symm);
884         flip_coord(cache->grab_delta_symmetry, cache->grab_delta, symm);
885         cache->symmetry= symm;
886 }
887
888 static void do_symmetrical_brush_actions(Sculpt *sd, StrokeCache *cache)
889 {
890         const char symm = sd->flags & 7;
891         int i;
892
893         /* Brush spacing: only apply dot if next dot is far enough away */
894         if((sd->brush->flag & BRUSH_SPACE) && !(sd->brush->flag & BRUSH_ANCHORED) && !cache->first_time) {
895                 int dx = cache->last_dot[0] - cache->mouse[0];
896                 int dy = cache->last_dot[1] - cache->mouse[1];
897                 if(sqrt(dx*dx+dy*dy) < sd->brush->spacing)
898                         return;
899         }
900         memcpy(cache->last_dot, cache->mouse, sizeof(int) * 2);
901
902         VecCopyf(cache->location, cache->true_location);
903         VecCopyf(cache->grab_delta_symmetry, cache->grab_delta);
904         cache->symmetry = 0;
905         do_brush_action(sd, cache);
906
907         for(i = 1; i <= symm; ++i) {
908                 if(symm & i && (symm != 5 || i != 3) && (symm != 6 || (i != 3 && i != 5))) {
909                         calc_brushdata_symm(cache, i);
910                         do_brush_action(sd, cache);
911                 }
912         }
913
914         cache->first_time = 0;
915 }
916
917 static void add_face_normal(vec3f *norm, MVert *mvert, const MFace* face, float *fn)
918 {
919         vec3f c= {mvert[face->v1].co[0],mvert[face->v1].co[1],mvert[face->v1].co[2]};
920         vec3f b= {mvert[face->v2].co[0],mvert[face->v2].co[1],mvert[face->v2].co[2]};
921         vec3f a= {mvert[face->v3].co[0],mvert[face->v3].co[1],mvert[face->v3].co[2]};
922         vec3f s1, s2;
923         float final[3];
924
925         VecSubf(&s1.x,&a.x,&b.x);
926         VecSubf(&s2.x,&c.x,&b.x);
927
928         final[0] = s1.y * s2.z - s1.z * s2.y;
929         final[1] = s1.z * s2.x - s1.x * s2.z;
930         final[2] = s1.x * s2.y - s1.y * s2.x;
931
932         if(fn)
933                 VecCopyf(fn, final);
934
935         norm->x+= final[0];
936         norm->y+= final[1];
937         norm->z+= final[2];
938 }
939
940 static void update_damaged_vert(SculptSession *ss, ListBase *lb)
941 {
942         ActiveData *vert;
943        
944         for(vert= lb->first; vert; vert= vert->next) {
945                 vec3f norm= {0,0,0};            
946                 IndexNode *face= ss->fmap[vert->Index].first;
947
948                 while(face){
949                         float *fn = NULL;
950                         if(ss->face_normals)
951                                 fn = &ss->face_normals[face->index*3];
952                         add_face_normal(&norm, ss->mvert, &ss->mface[face->index], fn);
953                         face= face->next;
954                 }
955                 Normalize(&norm.x);
956                 
957                 ss->mvert[vert->Index].no[0]=norm.x*32767;
958                 ss->mvert[vert->Index].no[1]=norm.y*32767;
959                 ss->mvert[vert->Index].no[2]=norm.z*32767;
960         }
961 }
962
963 static void calc_damaged_verts(SculptSession *ss)
964 {
965         int i;
966         
967         for(i=0; i<8; ++i)
968                 update_damaged_vert(ss, &ss->cache->grab_active_verts[i]);
969         update_damaged_vert(ss, &ss->damaged_verts);
970         BLI_freelistN(&ss->damaged_verts);
971         ss->damaged_verts.first = ss->damaged_verts.last = NULL;
972 }
973
974 #if 0
975 static void projverts_clear_inside(SculptSession *ss)
976 {
977         int i;
978         for(i = 0; i < ss->totvert; ++i)
979                 ss->projverts[i].inside = 0;
980 }
981 #endif
982
983 static void sculpt_update_tex(Sculpt *sd)
984 {
985         SculptSession *ss= sd->session;
986
987         if(ss->texcache) {
988                 MEM_freeN(ss->texcache);
989                 ss->texcache= NULL;
990         }
991
992         /* Need to allocate a bigger buffer for bigger brush size */
993         ss->texcache_side = sd->brush->size * 2;
994         if(!ss->texcache || ss->texcache_side > ss->texcache_actual) {
995                 ss->texcache = brush_gen_texture_cache(sd->brush, sd->brush->size);
996                 ss->texcache_actual = ss->texcache_side;
997         }
998 }
999
1000 void sculptmode_selectbrush_menu(void)
1001 {
1002         /* XXX: I guess menus belong elsewhere too?
1003
1004         Sculpt *sd= sculpt_data();
1005         int val;
1006         
1007         pupmenu_set_active(sd->brush_type);
1008         
1009         val= pupmenu("Select Brush%t|Draw|Smooth|Pinch|Inflate|Grab|Layer|Flatten");
1010
1011         if(val>0) {
1012                 sd->brush_type= val;
1013
1014                 allqueue(REDRAWVIEW3D, 1);
1015                 allqueue(REDRAWBUTSEDIT, 1);
1016         }*/
1017 }
1018
1019 static void sculptmode_update_all_projverts(SculptSession *ss)
1020 {
1021         unsigned i;
1022
1023         if(!ss->projverts)
1024                 ss->projverts = MEM_mallocN(sizeof(ProjVert)*ss->totvert,"ProjVerts");
1025
1026         for(i=0; i<ss->totvert; ++i) {
1027                 project(ss->cache->mats, ss->vertexcosnos ? &ss->vertexcosnos[i * 6] : ss->mvert[i].co,
1028                         ss->projverts[i].co);
1029                 ss->projverts[i].inside= 0;
1030         }
1031 }
1032
1033 /* Checks whether full update mode (slower) needs to be used to work with modifiers */
1034 char sculpt_modifiers_active(Object *ob)
1035 {
1036         ModifierData *md;
1037         
1038         for(md= modifiers_getVirtualModifierList(ob); md; md= md->next) {
1039                 if(md->mode & eModifierMode_Realtime && md->type != eModifierType_Multires)
1040                         return 1;
1041         }
1042         
1043         return 0;
1044 }
1045
1046 /* Sculpt mode handles multires differently from regular meshes, but only if
1047    it's the last modifier on the stack and it is not on the first level */
1048 static struct MultiresModifierData *sculpt_multires_active(Object *ob)
1049 {
1050         ModifierData *md;
1051         
1052         for(md= modifiers_getVirtualModifierList(ob); md; md= md->next) {
1053                 if(md->type == eModifierType_Multires && !md->next) {
1054                         MultiresModifierData *mmd = (MultiresModifierData*)md;
1055                         if(mmd->lvl != 1)
1056                                 return mmd;
1057                 }
1058         }
1059
1060         return NULL;
1061 }
1062
1063 static void sculpt_update_mesh_elements(bContext *C)
1064 {
1065         SculptSession *ss = CTX_data_tool_settings(C)->sculpt->session;
1066         Object *ob = CTX_data_active_object(C);
1067
1068         if((ss->multires = sculpt_multires_active(ob))) {
1069                 DerivedMesh *dm = mesh_get_derived_final(CTX_data_scene(C), ob, CD_MASK_BAREMESH);
1070                 ss->totvert = dm->getNumVerts(dm);
1071                 ss->totface = dm->getNumFaces(dm);
1072                 ss->mvert = dm->getVertDataArray(dm, CD_MVERT);
1073                 ss->mface = dm->getFaceDataArray(dm, CD_MFACE);
1074                 ss->face_normals = dm->getFaceDataArray(dm, CD_NORMAL);
1075         }
1076         else {
1077                 Mesh *me = get_mesh(ob);
1078                 ss->totvert = me->totvert;
1079                 ss->totface = me->totface;
1080                 ss->mvert = me->mvert;
1081                 ss->mface = me->mface;
1082                 ss->face_normals = NULL;
1083         }
1084
1085         if(ss->totvert != ss->fmap_size) {
1086                 if(ss->fmap) MEM_freeN(ss->fmap);
1087                 if(ss->fmap_mem) MEM_freeN(ss->fmap_mem);
1088                 create_vert_face_map(&ss->fmap, &ss->fmap_mem, ss->mface, ss->totvert, ss->totface);
1089                 ss->fmap_size = ss->totvert;
1090         }
1091 }
1092
1093 /* XXX: lots of drawing code (partial redraw), has to go elsewhere */
1094 #if 0
1095 void sculptmode_draw_wires(SculptSession *ss, int only_damaged)
1096 {
1097         Mesh *me = get_mesh(OBACT);
1098         int i;
1099
1100         bglPolygonOffset(1.0);
1101         glDepthMask(0);
1102         BIF_ThemeColor((OBACT==OBACT)?TH_ACTIVE:TH_SELECT);
1103
1104         for(i=0; i<me->totedge; i++) {
1105                 MEdge *med= &me->medge[i];
1106
1107                 if((!only_damaged || (ss->projverts[med->v1].inside || ss->projverts[med->v2].inside)) &&
1108                    (med->flag & ME_EDGEDRAW)) {
1109                         glDrawElements(GL_LINES, 2, GL_UNSIGNED_INT, &med->v1);
1110                 }
1111         }
1112
1113         glDepthMask(1);
1114         bglPolygonOffset(0.0);
1115 }
1116
1117 void sculptmode_draw_mesh(int only_damaged) 
1118 {
1119         int i, j, dt, drawCurrentMat = 1, matnr= -1;
1120         SculptSession *ss = sculpt_session();
1121
1122         sculpt_update_mesh_elements(ss, OBACT);
1123
1124         persp(PERSP_VIEW);
1125         mymultmatrix(OBACT->obmat);
1126         glEnable(GL_DEPTH_TEST);
1127         glEnable(GL_LIGHTING);
1128         /* XXX: GPU_set_object_materials(G.scene, OBACT, 0, NULL); */
1129         glEnable(GL_CULL_FACE);
1130
1131         glShadeModel(GL_SMOOTH);
1132
1133         glVertexPointer(3, GL_FLOAT, sizeof(MVert), &cache->mvert[0].co);
1134         glNormalPointer(GL_SHORT, sizeof(MVert), &cache->mvert[0].no);
1135
1136         dt= MIN2(G.vd->drawtype, OBACT->dt);
1137         if(dt==OB_WIRE)
1138                 glColorMask(0,0,0,0);
1139
1140         for(i=0; i<ss->totface; ++i) {
1141                 MFace *f= &ss->mface[i];
1142                 char inside= 0;
1143                 int new_matnr= f->mat_nr + 1;
1144                 
1145                 if(new_matnr != matnr)
1146                         drawCurrentMat= GPU_enable_material(matnr = new_matnr, NULL);
1147                 
1148                 /* If only_damaged!=0, only draw faces that are partially
1149                    inside the area(s) modified by the brush */
1150                 if(only_damaged) {
1151                         for(j=0; j<(f->v4?4:3); ++j) {
1152                                 if(ss->projverts[*((&f->v1)+j)].inside) {
1153                                         inside= 1;
1154                                         break;
1155                                 }
1156                         }
1157                 }
1158                 else
1159                         inside= 1;
1160                         
1161                 if(inside && drawCurrentMat)
1162                         glDrawElements(f->v4?GL_QUADS:GL_TRIANGLES, f->v4?4:3, GL_UNSIGNED_INT, &f->v1);
1163         }
1164
1165         glDisable(GL_CULL_FACE);
1166         glDisable(GL_LIGHTING);
1167         glColorMask(1,1,1,1);
1168
1169         if(dt==OB_WIRE || (OBACT->dtx & OB_DRAWWIRE))
1170                 sculptmode_draw_wires(ss, only_damaged);
1171
1172         glDisable(GL_DEPTH_TEST);
1173 }
1174 #endif
1175
1176 static int sculpt_poll(bContext *C)
1177 {
1178         return G.f & G_SCULPTMODE && CTX_wm_area(C)->spacetype == SPACE_VIEW3D &&
1179                 CTX_wm_region(C)->regiontype == RGN_TYPE_WINDOW;
1180 }
1181
1182 /*** Sculpt Cursor ***/
1183 static void draw_paint_cursor(bContext *C, int x, int y, void *customdata)
1184 {
1185         Sculpt *sd= CTX_data_tool_settings(C)->sculpt;
1186         
1187         glTranslatef((float)x, (float)y, 0.0f);
1188         
1189         glColor4ub(255, 100, 100, 128);
1190         glEnable( GL_LINE_SMOOTH );
1191         glEnable(GL_BLEND);
1192         glutil_draw_lined_arc(0.0, M_PI*2.0, sd->brush->size, 40);
1193         glDisable(GL_BLEND);
1194         glDisable( GL_LINE_SMOOTH );
1195         
1196         glTranslatef((float)-x, (float)-y, 0.0f);
1197 }
1198
1199 static void toggle_paint_cursor(bContext *C)
1200 {
1201         Sculpt *s = CTX_data_scene(C)->toolsettings->sculpt;
1202
1203         if(s->session->cursor) {
1204                 WM_paint_cursor_end(CTX_wm_manager(C), s->session->cursor);
1205                 s->session->cursor = NULL;
1206         }
1207         else {
1208                 s->session->cursor =
1209                         WM_paint_cursor_activate(CTX_wm_manager(C), sculpt_poll, draw_paint_cursor, NULL);
1210         }
1211 }
1212
1213 static void sculpt_undo_push(bContext *C, Sculpt *sd)
1214 {
1215         switch(sd->brush->sculpt_tool) {
1216         case SCULPT_TOOL_DRAW:
1217                 ED_undo_push(C, "Draw Brush"); break;
1218         case SCULPT_TOOL_SMOOTH:
1219                 ED_undo_push(C, "Smooth Brush"); break;
1220         case SCULPT_TOOL_PINCH:
1221                 ED_undo_push(C, "Pinch Brush"); break;
1222         case SCULPT_TOOL_INFLATE:
1223                 ED_undo_push(C, "Inflate Brush"); break;
1224         case SCULPT_TOOL_GRAB:
1225                 ED_undo_push(C, "Grab Brush"); break;
1226         case SCULPT_TOOL_LAYER:
1227                 ED_undo_push(C, "Layer Brush"); break;
1228         case SCULPT_TOOL_FLATTEN:
1229                 ED_undo_push(C, "Flatten Brush"); break;
1230         default:
1231                 ED_undo_push(C, "Sculpting"); break;
1232         }
1233 }
1234
1235 static int sculpt_brush_curve_preset_exec(bContext *C, wmOperator *op)
1236 {
1237         brush_curve_preset(CTX_data_scene(C)->toolsettings->sculpt->brush, RNA_enum_get(op->ptr, "mode"));
1238         return OPERATOR_FINISHED;
1239 }
1240
1241 static void SCULPT_OT_brush_curve_preset(wmOperatorType *ot)
1242 {
1243         static EnumPropertyItem prop_mode_items[] = {
1244                 {BRUSH_PRESET_SHARP, "SHARP", "Sharp Curve", ""},
1245                 {BRUSH_PRESET_SMOOTH, "SMOOTH", "Smooth Curve", ""},
1246                 {BRUSH_PRESET_MAX, "MAX", "Max Curve", ""},
1247                 {0, NULL, NULL, NULL}};
1248
1249         ot->name= "Preset";
1250         ot->idname= "SCULPT_OT_brush_curve_preset";
1251
1252         ot->exec= sculpt_brush_curve_preset_exec;
1253         ot->poll= sculpt_poll;
1254
1255         ot->flag= OPTYPE_REGISTER|OPTYPE_UNDO;
1256
1257         RNA_def_enum(ot->srna, "mode", prop_mode_items, BRUSH_PRESET_SHARP, "Mode", "");
1258 }
1259
1260 /**** Radial control ****/
1261 static int sculpt_radial_control_invoke(bContext *C, wmOperator *op, wmEvent *event)
1262 {
1263         toggle_paint_cursor(C);
1264         brush_radial_control_invoke(op, CTX_data_scene(C)->toolsettings->sculpt->brush, 1);
1265         return WM_radial_control_invoke(C, op, event);
1266 }
1267
1268 static int sculpt_radial_control_modal(bContext *C, wmOperator *op, wmEvent *event)
1269 {
1270         int ret = WM_radial_control_modal(C, op, event);
1271         if(ret != OPERATOR_RUNNING_MODAL)
1272                 toggle_paint_cursor(C);
1273         return ret;
1274 }
1275
1276 static int sculpt_radial_control_exec(bContext *C, wmOperator *op)
1277 {
1278         return brush_radial_control_exec(op, CTX_data_scene(C)->toolsettings->sculpt->brush, 1);
1279 }
1280
1281 static void SCULPT_OT_radial_control(wmOperatorType *ot)
1282 {
1283         WM_OT_radial_control_partial(ot);
1284
1285         ot->name= "Sculpt Radial Control";
1286         ot->idname= "SCULPT_OT_radial_control";
1287
1288         ot->invoke= sculpt_radial_control_invoke;
1289         ot->modal= sculpt_radial_control_modal;
1290         ot->exec= sculpt_radial_control_exec;
1291         ot->poll= sculpt_poll;
1292
1293         ot->flag= OPTYPE_REGISTER|OPTYPE_UNDO;
1294 }
1295
1296 /**** Operator for applying a stroke (various attributes including mouse path)
1297       using the current brush. ****/
1298
1299 static float unproject_brush_radius(SculptSession *ss, float offset)
1300 {
1301         float brush_edge[3];
1302
1303         /* In anchored mode, brush size changes with mouse loc, otherwise it's fixed using the brush radius */
1304         unproject(ss->cache->mats, brush_edge, ss->cache->initial_mouse[0] + offset,
1305                   ss->cache->initial_mouse[1], ss->cache->depth);
1306
1307         return VecLenf(ss->cache->true_location, brush_edge);
1308 }
1309
1310 static void sculpt_cache_free(StrokeCache *cache)
1311 {
1312         if(cache->layer_disps)
1313                 MEM_freeN(cache->layer_disps);
1314         if(cache->mesh_store)
1315                 MEM_freeN(cache->mesh_store);
1316         if(cache->orig_norms)
1317                 MEM_freeN(cache->orig_norms);
1318         if(cache->mats)
1319                 MEM_freeN(cache->mats);
1320         MEM_freeN(cache);
1321 }
1322
1323 /* Initialize the stroke cache invariants from operator properties */
1324 static void sculpt_update_cache_invariants(Sculpt *sd, bContext *C, wmOperator *op)
1325 {
1326         StrokeCache *cache = MEM_callocN(sizeof(StrokeCache), "stroke cache");
1327         int i;
1328
1329         sd->session->cache = cache;
1330
1331         RNA_float_get_array(op->ptr, "scale", cache->scale);
1332         cache->flag = RNA_int_get(op->ptr, "flag");
1333         RNA_float_get_array(op->ptr, "clip_tolerance", cache->clip_tolerance);
1334         RNA_int_get_array(op->ptr, "initial_mouse", cache->initial_mouse);
1335         cache->depth = RNA_float_get(op->ptr, "depth");
1336
1337         /* Truly temporary data that isn't stored in properties */
1338
1339         view3d_set_viewcontext(C, &cache->vc);
1340
1341         cache->mats = MEM_callocN(sizeof(bglMats), "sculpt bglMats");
1342         view3d_get_transformation(&cache->vc, cache->vc.obact, cache->mats);
1343
1344         sculpt_update_mesh_elements(C);
1345
1346         /* Make copies of the mesh vertex locations and normals for some tools */
1347         if(sd->brush->sculpt_tool == SCULPT_TOOL_LAYER || (sd->brush->flag & BRUSH_ANCHORED)) {
1348                 cache->layer_disps = MEM_callocN(sizeof(float) * sd->session->totvert, "layer brush displacements");
1349                 cache->mesh_store= MEM_mallocN(sizeof(float) * 3 * sd->session->totvert, "sculpt mesh vertices copy");
1350                 for(i = 0; i < sd->session->totvert; ++i)
1351                         VecCopyf(cache->mesh_store[i], sd->session->mvert[i].co);
1352
1353                 if(sd->brush->flag & BRUSH_ANCHORED) {
1354                         cache->orig_norms= MEM_mallocN(sizeof(short) * 3 * sd->session->totvert, "Sculpt orig norm");
1355                         for(i = 0; i < sd->session->totvert; ++i) {
1356                                 cache->orig_norms[i][0] = sd->session->mvert[i].no[0];
1357                                 cache->orig_norms[i][1] = sd->session->mvert[i].no[1];
1358                                 cache->orig_norms[i][2] = sd->session->mvert[i].no[2];
1359                         }
1360                 }
1361         }
1362
1363         unproject(cache->mats, cache->true_location, cache->initial_mouse[0], cache->initial_mouse[1], cache->depth);
1364         cache->radius = unproject_brush_radius(sd->session, brush_size(sd));
1365         cache->rotation = 0;
1366         cache->first_time = 1;
1367 }
1368
1369 /* Initialize the stroke cache variants from operator properties */
1370 static void sculpt_update_cache_variants(Sculpt *sd, PointerRNA *ptr)
1371 {
1372         StrokeCache *cache = sd->session->cache;
1373         float grab_location[3];
1374         int dx, dy;
1375
1376         if(!(sd->brush->flag & BRUSH_ANCHORED))
1377                 RNA_float_get_array(ptr, "location", cache->true_location);
1378         cache->flip = RNA_boolean_get(ptr, "flip");
1379         RNA_int_get_array(ptr, "mouse", cache->mouse);
1380         
1381         /* Truly temporary data that isn't stored in properties */
1382
1383         cache->previous_pixel_radius = cache->pixel_radius;
1384         cache->pixel_radius = brush_size(sd);
1385
1386         if(sd->brush->flag & BRUSH_ANCHORED) {
1387                 dx = cache->mouse[0] - cache->initial_mouse[0];
1388                 dy = cache->mouse[1] - cache->initial_mouse[1];
1389                 cache->pixel_radius = sqrt(dx*dx + dy*dy);
1390                 cache->radius = unproject_brush_radius(sd->session, cache->pixel_radius);
1391                 cache->rotation = atan2(dy, dx);
1392         }
1393         else if(sd->brush->flag & BRUSH_RAKE) {
1394                 int update;
1395
1396                 dx = cache->last_rake[0] - cache->mouse[0];
1397                 dy = cache->last_rake[1] - cache->mouse[1];
1398
1399                 update = dx*dx + dy*dy > 100;
1400
1401                 /* To prevent jitter, only update the angle if the mouse has moved over 10 pixels */
1402                 if(update && !cache->first_time)
1403                         cache->rotation = M_PI_2 + atan2(dy, dx);
1404
1405                 if(update || cache->first_time) {
1406                         cache->last_rake[0] = cache->mouse[0];
1407                         cache->last_rake[1] = cache->mouse[1];
1408                 }
1409         }
1410
1411         /* Find the grab delta */
1412         if(sd->brush->sculpt_tool == SCULPT_TOOL_GRAB) {
1413                 unproject(cache->mats, grab_location, cache->mouse[0], cache->mouse[1], cache->depth);
1414                 if(!cache->first_time)
1415                         VecSubf(cache->grab_delta, grab_location, cache->old_grab_location);
1416                 VecCopyf(cache->old_grab_location, grab_location);
1417         }
1418 }
1419
1420 /* Initialize stroke operator properties */
1421 static void sculpt_brush_stroke_init_properties(bContext *C, wmOperator *op, wmEvent *event, SculptSession *ss)
1422 {
1423         Sculpt *sd = CTX_data_tool_settings(C)->sculpt;
1424         Object *ob= CTX_data_active_object(C);
1425         ModifierData *md;
1426         ViewContext vc;
1427         float scale[3], clip_tolerance[3] = {0,0,0};
1428         int mouse[2], flag = 0;
1429
1430         /* Set scaling adjustment */
1431         scale[0] = 1.0f / ob->size[0];
1432         scale[1] = 1.0f / ob->size[1];
1433         scale[2] = 1.0f / ob->size[2];
1434         RNA_float_set_array(op->ptr, "scale", scale);
1435
1436         /* Initialize mirror modifier clipping */
1437         for(md= ob->modifiers.first; md; md= md->next) {
1438                 if(md->type==eModifierType_Mirror && (md->mode & eModifierMode_Realtime)) {
1439                         const MirrorModifierData *mmd = (MirrorModifierData*) md;
1440                         
1441                         /* Mark each axis that needs clipping along with its tolerance */
1442                         if(mmd->flag & MOD_MIR_CLIPPING) {
1443                                 flag |= CLIP_X << mmd->axis;
1444                                 if(mmd->tolerance > clip_tolerance[mmd->axis])
1445                                         clip_tolerance[mmd->axis] = mmd->tolerance;
1446                         }
1447                 }
1448         }
1449         RNA_int_set(op->ptr, "flag", flag);
1450         RNA_float_set_array(op->ptr, "clip_tolerance", clip_tolerance);
1451
1452         /* Initial mouse location */
1453         mouse[0] = event->x;
1454         mouse[1] = event->y;
1455         RNA_int_set_array(op->ptr, "initial_mouse", mouse);
1456
1457         /* Initial screen depth under the mouse */
1458         view3d_set_viewcontext(C, &vc);
1459         RNA_float_set(op->ptr, "depth", read_cached_depth(&vc, event->x, event->y));
1460
1461         sculpt_update_cache_invariants(sd, C, op);
1462 }
1463
1464 static int sculpt_brush_stroke_invoke(bContext *C, wmOperator *op, wmEvent *event)
1465 {
1466         Sculpt *sd = CTX_data_tool_settings(C)->sculpt;
1467
1468         view3d_operator_needs_opengl(C);
1469         sculpt_brush_stroke_init_properties(C, op, event, sd->session);
1470
1471         sculptmode_update_all_projverts(sd->session);
1472
1473         /* TODO: Shouldn't really have to do this at the start of every
1474            stroke, but sculpt would need some sort of notification when
1475            changes are made to the texture. */
1476         sculpt_update_tex(sd);
1477
1478         /* add modal handler */
1479         WM_event_add_modal_handler(C, &CTX_wm_window(C)->handlers, op);
1480         
1481         return OPERATOR_RUNNING_MODAL;
1482 }
1483
1484 static void sculpt_restore_mesh(Sculpt *sd)
1485 {
1486         StrokeCache *cache = sd->session->cache;
1487         int i;
1488         
1489         /* Restore the mesh before continuing with anchored stroke */
1490         if((sd->brush->flag & BRUSH_ANCHORED) && cache->mesh_store) {
1491                 for(i = 0; i < sd->session->totvert; ++i) {
1492                         VecCopyf(sd->session->mvert[i].co, cache->mesh_store[i]);
1493                         sd->session->mvert[i].no[0] = cache->orig_norms[i][0];
1494                         sd->session->mvert[i].no[1] = cache->orig_norms[i][1];
1495                         sd->session->mvert[i].no[2] = cache->orig_norms[i][2];
1496                 }
1497         }
1498 }
1499
1500 static void sculpt_post_stroke_free(SculptSession *ss)
1501 {
1502         BLI_freelistN(&ss->damaged_rects);
1503         BLI_freelistN(&ss->damaged_verts);
1504 }
1505
1506 static void sculpt_flush_update(bContext *C)
1507 {
1508         Sculpt *s = CTX_data_tool_settings(C)->sculpt;
1509         ARegion *ar = CTX_wm_region(C);
1510         MultiresModifierData *mmd = s->session->multires;
1511
1512         calc_damaged_verts(s->session);
1513
1514         if(mmd) {
1515                 if(mmd->undo_verts && mmd->undo_verts != s->session->mvert)
1516                         MEM_freeN(mmd->undo_verts);
1517                 
1518                 mmd->undo_verts = s->session->mvert;
1519                 mmd->undo_verts_tot = s->session->totvert;
1520         }
1521
1522         ED_region_tag_redraw(ar);
1523 }
1524
1525 static int sculpt_brush_stroke_modal(bContext *C, wmOperator *op, wmEvent *event)
1526 {
1527         PointerRNA itemptr;
1528         Sculpt *sd = CTX_data_tool_settings(C)->sculpt;
1529         float center[3];
1530         int mouse[2] = {event->x, event->y};
1531
1532         sculpt_update_mesh_elements(C);
1533
1534         unproject(sd->session->cache->mats, center, event->x, event->y,
1535                   read_cached_depth(&sd->session->cache->vc, event->x, event->y));
1536
1537         /* Add to stroke */
1538         RNA_collection_add(op->ptr, "stroke", &itemptr);
1539         RNA_float_set_array(&itemptr, "location", center);
1540         RNA_int_set_array(&itemptr, "mouse", mouse);
1541         RNA_boolean_set(&itemptr, "flip", event->shift);
1542         sculpt_update_cache_variants(sd, &itemptr);
1543
1544         sculpt_restore_mesh(sd);
1545         do_symmetrical_brush_actions(CTX_data_tool_settings(C)->sculpt, sd->session->cache);
1546
1547         sculpt_flush_update(C);
1548         sculpt_post_stroke_free(sd->session);
1549
1550         /* Finished */
1551         if(event->type == LEFTMOUSE && event->val == 0) {
1552                 request_depth_update(sd->session->cache->vc.rv3d);
1553
1554                 sculpt_cache_free(sd->session->cache);
1555
1556                 sculpt_undo_push(C, sd);
1557
1558                 return OPERATOR_FINISHED;
1559         }
1560
1561         return OPERATOR_RUNNING_MODAL;
1562 }
1563
1564 static int sculpt_brush_stroke_exec(bContext *C, wmOperator *op)
1565 {
1566         Sculpt *sd = CTX_data_tool_settings(C)->sculpt;
1567
1568         view3d_operator_needs_opengl(C);
1569         sculpt_update_cache_invariants(sd, C, op);
1570         sculptmode_update_all_projverts(sd->session);
1571         sculpt_update_tex(sd);
1572
1573         RNA_BEGIN(op->ptr, itemptr, "stroke") {
1574                 sculpt_update_cache_variants(sd, &itemptr);
1575
1576                 sculpt_restore_mesh(sd);
1577                 do_symmetrical_brush_actions(sd, sd->session->cache);
1578
1579                 sculpt_post_stroke_free(sd->session);
1580         }
1581         RNA_END;
1582
1583         sculpt_flush_update(C);
1584         sculpt_cache_free(sd->session->cache);
1585
1586         sculpt_undo_push(C, sd);
1587
1588         return OPERATOR_FINISHED;
1589 }
1590
1591 static void SCULPT_OT_brush_stroke(wmOperatorType *ot)
1592 {
1593         ot->flag |= OPTYPE_REGISTER;
1594
1595         /* identifiers */
1596         ot->name= "Sculpt Mode";
1597         ot->idname= "SCULPT_OT_brush_stroke";
1598         
1599         /* api callbacks */
1600         ot->invoke= sculpt_brush_stroke_invoke;
1601         ot->modal= sculpt_brush_stroke_modal;
1602         ot->exec= sculpt_brush_stroke_exec;
1603         ot->poll= sculpt_poll;
1604         
1605         /* flags (sculpt does own undo? (ton) */
1606         ot->flag= OPTYPE_REGISTER;
1607
1608         /* properties */
1609         RNA_def_collection_runtime(ot->srna, "stroke", &RNA_OperatorStrokeElement, "Stroke", "");
1610
1611         /* If the object has a scaling factor, brushes also need to be scaled
1612            to work as expected. */
1613         RNA_def_float_vector(ot->srna, "scale", 3, NULL, 0.0f, FLT_MAX, "Scale", "", 0.0f, 1000.0f);
1614
1615         RNA_def_int(ot->srna, "flag", 0, 0, INT_MAX, "flag", "", 0, INT_MAX);
1616
1617         /* For mirror modifiers */
1618         RNA_def_float_vector(ot->srna, "clip_tolerance", 3, NULL, 0.0f, FLT_MAX, "clip_tolerance", "", 0.0f, 1000.0f);
1619
1620         /* The initial 2D location of the mouse */
1621         RNA_def_int_vector(ot->srna, "initial_mouse", 2, NULL, INT_MIN, INT_MAX, "initial_mouse", "", INT_MIN, INT_MAX);
1622
1623         /* The initial screen depth of the mouse */
1624         RNA_def_float(ot->srna, "depth", 0.0f, 0.0f, FLT_MAX, "depth", "", 0.0f, FLT_MAX);
1625 }
1626
1627 /**** Toggle operator for turning sculpt mode on or off ****/
1628
1629 static int sculpt_toggle_mode(bContext *C, wmOperator *op)
1630 {
1631         ToolSettings *ts = CTX_data_tool_settings(C);
1632
1633         if(G.f & G_SCULPTMODE) {
1634                 multires_force_update(CTX_data_active_object(C));
1635
1636                 /* Leave sculptmode */
1637                 G.f &= ~G_SCULPTMODE;
1638
1639                 toggle_paint_cursor(C);
1640
1641                 sculptsession_free(ts->sculpt);
1642         }
1643         else {
1644                 MTex *mtex; // XXX: temporary
1645
1646                 /* Enter sculptmode */
1647
1648                 G.f |= G_SCULPTMODE;
1649                 
1650                 /* Create persistent sculpt mode data */
1651                 if(!ts->sculpt)
1652                         ts->sculpt = MEM_callocN(sizeof(Sculpt), "sculpt mode data");
1653
1654                 /* Create sculpt mode session data */
1655                 if(ts->sculpt->session)
1656                         MEM_freeN(ts->sculpt->session);
1657                 ts->sculpt->session = MEM_callocN(sizeof(SculptSession), "sculpt session");
1658
1659                 toggle_paint_cursor(C);
1660
1661                 /* If there's no brush, create one */
1662                 brush_check_exists(&ts->sculpt->brush);
1663
1664                 /* XXX: testing: set the brush texture to the first available one */
1665                 if(G.main->tex.first) {
1666                         Tex *tex = G.main->tex.first;
1667                         if(tex->type) {
1668                                 mtex = MEM_callocN(sizeof(MTex), "test mtex");
1669                                 ts->sculpt->brush->texact = 0;
1670                                 ts->sculpt->brush->mtex[0] = mtex;
1671                                 mtex->tex = tex;
1672                                 mtex->size[0] = mtex->size[1] = mtex->size[2] = 50;
1673                         }
1674                 }
1675         }
1676
1677         return OPERATOR_FINISHED;
1678 }
1679
1680 static void SCULPT_OT_sculptmode_toggle(wmOperatorType *ot)
1681 {
1682         /* identifiers */
1683         ot->name= "Sculpt Mode";
1684         ot->idname= "SCULPT_OT_sculptmode_toggle";
1685         
1686         /* api callbacks */
1687         ot->exec= sculpt_toggle_mode;
1688         ot->poll= ED_operator_object_active;
1689         
1690         ot->flag= OPTYPE_REGISTER|OPTYPE_UNDO;
1691 }
1692
1693 void ED_operatortypes_sculpt()
1694 {
1695         WM_operatortype_append(SCULPT_OT_radial_control);
1696         WM_operatortype_append(SCULPT_OT_brush_stroke);
1697         WM_operatortype_append(SCULPT_OT_sculptmode_toggle);
1698         WM_operatortype_append(SCULPT_OT_brush_curve_preset);
1699 }
1700
1701 void sculpt(Sculpt *sd)
1702 {
1703 #if 0
1704         SculptSession *ss= sd->session;
1705         Object *ob= NULL; /*XXX */
1706         Mesh *me;
1707         MultiresModifierData *mmd = NULL;
1708         /* lastSigMouse is for the rake, to store the last place the mouse movement was significant */
1709         short mouse[2], mvalo[2], lastSigMouse[2],firsttime=1, mousebut;
1710         short modifier_calculations= 0;
1711         BrushAction *a = MEM_callocN(sizeof(BrushAction), "brush action");
1712         short spacing= 32000;
1713         int scissor_box[4];
1714         float offsetRot;
1715         int smooth_stroke = 0, i;
1716         int anchored, rake = 0 /* XXX: rake = ? */;
1717
1718         /* XXX: checking that sculpting is allowed
1719         if(!(G.f & G_SCULPTMODE) || G.obedit || !ob || ob->id.lib || !get_mesh(ob) || (get_mesh(ob)->totface == 0))
1720                 return;
1721         if(!(ob->lay & G.vd->lay))
1722                 error("Active object is not in this layer");
1723         if(ob_get_keyblock(ob)) {
1724                 if(!(ob->shapeflag & OB_SHAPE_LOCK)) {
1725                         error("Cannot sculpt on unlocked shape key");
1726                         return;
1727                 }
1728         }*/
1729         
1730         anchored = sd->brush->flag & BRUSH_ANCHORED;
1731         smooth_stroke = (sd->flags & SCULPT_INPUT_SMOOTH) && (sd->brush->sculpt_tool != SCULPT_TOOL_GRAB) && !anchored;
1732
1733         if(smooth_stroke)
1734                 sculpt_stroke_new(256);
1735
1736         ss->damaged_rects.first = ss->damaged_rects.last = NULL;
1737         ss->damaged_verts.first = ss->damaged_verts.last = NULL;
1738         ss->vertexcosnos = NULL;
1739
1740         mmd = sculpt_multires_active(ob);
1741
1742         /* Check that vertex users are up-to-date */
1743         if(ob != active_ob || !ss->vertex_users || ss->vertex_users_size != cache->totvert) {
1744                 sculpt_vertexusers_free(ss);
1745                 calc_vertex_users(ss);
1746                 if(ss->projverts)
1747                         MEM_freeN(ss->projverts);
1748                 ss->projverts = NULL;
1749                 active_ob= ob;
1750         }
1751                 
1752         glEnableClientState(GL_VERTEX_ARRAY);
1753         glEnableClientState(GL_NORMAL_ARRAY);
1754
1755         /*XXX:
1756         persp(PERSP_VIEW);
1757         getmouseco_areawin(mvalo);*/
1758
1759         /* Init texture
1760            FIXME: Shouldn't be doing this every time! */
1761         if(sd->tex_mode!=SCULPTREPT_3D)
1762                 sculptmode_update_tex(sd);
1763
1764         /*XXX: getmouseco_areawin(mouse); */
1765         mvalo[0]= mouse[0];
1766         mvalo[1]= mouse[1];
1767         lastSigMouse[0]=mouse[0];
1768         lastSigMouse[1]=mouse[1];
1769         mousebut = 0; /* XXX: L_MOUSE; */
1770
1771         /* If modifier_calculations is true, then extra time must be spent
1772            updating the mesh. This takes a *lot* longer, so it's worth
1773            skipping if the modifier stack is empty. */
1774         modifier_calculations= sculpt_modifiers_active(ob);
1775
1776         if(modifier_calculations)
1777                 ss->vertexcosnos= mesh_get_mapped_verts_nors(NULL, ob); /* XXX: scene = ? */
1778         sculptmode_update_all_projverts(ss);
1779
1780         /* Capture original copy */
1781         if(sd->flags & SCULPT_DRAW_FAST)
1782                 glAccum(GL_LOAD, 1);
1783
1784         /* Get original scissor box */
1785         glGetIntegerv(GL_SCISSOR_BOX, scissor_box);
1786         
1787         /* For raking, get the original angle*/
1788         offsetRot=sculpt_tex_angle(sd);
1789
1790         me = get_mesh(ob);
1791
1792         while (/*XXX:get_mbut() & mousebut*/0) {
1793                 /* XXX: getmouseco_areawin(mouse); */
1794                 /* If rake, and the mouse has moved over 10 pixels (euclidean) (prevents jitter) then get the new angle */
1795                 if (rake && (pow(lastSigMouse[0]-mouse[0],2)+pow(lastSigMouse[1]-mouse[1],2))>100){
1796                         /*Nasty looking, but just orig + new angle really*/
1797                         set_tex_angle(sd, offsetRot+180.+to_deg(atan2((float)(mouse[1]-lastSigMouse[1]),(float)(mouse[0]-lastSigMouse[0]))));
1798                         lastSigMouse[0]=mouse[0];
1799                         lastSigMouse[1]=mouse[1];
1800                 }
1801                 
1802                 if(firsttime || mouse[0]!=mvalo[0] || mouse[1]!=mvalo[1] ||
1803                    sd->brush->flag & BRUSH_AIRBRUSH) {
1804                         a->firsttime = firsttime;
1805                         firsttime= 0;
1806
1807                         if(smooth_stroke)
1808                                 sculpt_stroke_add_point(ss->stroke, mouse[0], mouse[1]);
1809
1810                         spacing+= sqrt(pow(mvalo[0]-mouse[0],2)+pow(mvalo[1]-mouse[1],2));
1811
1812                         if(modifier_calculations && !ss->vertexcosnos)
1813                                 ss->vertexcosnos= mesh_get_mapped_verts_nors(NULL, ob); /*XXX scene = ? */
1814
1815                         if(sd->brush->sculpt_tool != SCULPT_TOOL_GRAB) {
1816                                 if(anchored) {
1817                                         /* Restore the mesh before continuing with anchored stroke */
1818                                         /*if(a->mesh_store) {
1819                                                 for(i = 0; i < cache->totvert; ++i) {
1820                                                         VecCopyf(cache->mvert[i].co, &a->mesh_store[i].x);
1821                                                         cache->mvert[i].no[0] = a->orig_norms[i][0];
1822                                                         cache->mvert[i].no[1] = a->orig_norms[i][1];
1823                                                         cache->mvert[i].no[2] = a->orig_norms[i][2];
1824                                                 }
1825                                                 }*/
1826                                         
1827                                         //do_symmetrical_brush_actions(sd, a, mouse, NULL);
1828                                 }
1829                                 else {
1830                                         if(smooth_stroke) {
1831                                                 sculpt_stroke_apply(sd, ss->stroke);
1832                                         }
1833                                         else if(sd->spacing==0 || spacing>sd->spacing) {
1834                                                 //do_symmetrical_brush_actions(sd, a, mouse, NULL);
1835                                                 spacing= 0;
1836                                         }
1837                                 }
1838                         }
1839                         else {
1840                                 //do_symmetrical_brush_actions(sd, a, mouse, mvalo);
1841                                 //unproject(ss, sd->pivot, mouse[0], mouse[1], a->depth);
1842                         }
1843
1844                         if((!ss->multires && modifier_calculations) || ob_get_keyblock(ob)) {
1845                                 /* XXX: DAG_object_flush_update(G.scene, ob, OB_RECALC_DATA); */ }
1846
1847                         if(modifier_calculations || sd->brush->sculpt_tool == SCULPT_TOOL_GRAB || !(sd->flags & SCULPT_DRAW_FAST)) {
1848                                 calc_damaged_verts(ss, a);
1849                                 /*XXX: scrarea_do_windraw(curarea);
1850                                 screen_swapbuffers(); */
1851                         } else { /* Optimized drawing */
1852                                 calc_damaged_verts(ss, a);
1853
1854                                 /* Draw the stored image to the screen */
1855                                 glAccum(GL_RETURN, 1);
1856
1857                                 sculpt_clear_damaged_areas(ss);
1858                                 
1859                                 /* Draw all the polygons that are inside the modified area(s) */
1860                                 glScissor(scissor_box[0], scissor_box[1], scissor_box[2], scissor_box[3]);
1861                                 /* XXX: sculptmode_draw_mesh(1); */
1862                                 glAccum(GL_LOAD, 1);
1863
1864                                 projverts_clear_inside(ss);
1865
1866                                 /* XXX: persp(PERSP_WIN); */
1867                                 glDisable(GL_DEPTH_TEST);
1868                                 
1869                                 /* Draw cursor */
1870                                 if(sd->flags & SCULPT_TOOL_DRAW)
1871                                         fdrawXORcirc((float)mouse[0],(float)mouse[1],sd->brush->size);
1872                                 /* XXX: if(smooth_stroke)
1873                                    sculpt_stroke_draw();
1874                                 
1875                                 myswapbuffers(); */
1876                         }
1877
1878                         BLI_freelistN(&ss->damaged_rects);
1879                         ss->damaged_rects.first = ss->damaged_rects.last = NULL;
1880         
1881                         mvalo[0]= mouse[0];
1882                         mvalo[1]= mouse[1];
1883
1884                         if(ss->vertexcosnos) {
1885                                 MEM_freeN(ss->vertexcosnos);
1886                                 ss->vertexcosnos= NULL;
1887                         }
1888
1889                 }
1890                 else { /*XXX:BIF_wait_for_statechange();*/ }
1891         }
1892
1893         /* Set the rotation of the brush back to what it was before any rake */
1894         set_tex_angle(sd, offsetRot);
1895         
1896         if(smooth_stroke) {
1897                 sculpt_stroke_apply_all(sd, ss->stroke);
1898                 calc_damaged_verts(ss, a);
1899                 BLI_freelistN(&ss->damaged_rects);
1900         }
1901
1902         //if(a->layer_disps) MEM_freeN(a->layer_disps);
1903         //if(a->mesh_store) MEM_freeN(a->mesh_store);
1904         //if(a->orig_norms) MEM_freeN(a->orig_norms);
1905         for(i=0; i<8; ++i)
1906                 BLI_freelistN(&a->grab_active_verts[i]);
1907         MEM_freeN(a);
1908         sculpt_stroke_free(ss->stroke);
1909         ss->stroke = NULL;
1910
1911         if(mmd) {
1912                 if(mmd->undo_verts && mmd->undo_verts != cache->mvert)
1913                         MEM_freeN(mmd->undo_verts);
1914                 
1915                 mmd->undo_verts = cache->mvert;
1916                 mmd->undo_verts_tot = cache->totvert;
1917         }
1918
1919         //sculpt_undo_push(sd);
1920
1921         /* XXX: if(G.vd->depths) G.vd->depths->damaged= 1;
1922            allqueue(REDRAWVIEW3D, 0); */
1923 #endif
1924 }
1925
1926 /* Partial Mesh Visibility */
1927
1928 /* XXX: Partial vis. always was a mess, have to figure something out */
1929 #if 0
1930 /* mode: 0=hide outside selection, 1=hide inside selection */
1931 static void sculptmode_do_pmv(Object *ob, rcti *hb_2d, int mode)
1932 {
1933         Mesh *me= get_mesh(ob);
1934         float hidebox[6][3];
1935         vec3f plane_normals[4];
1936         float plane_ds[4];
1937         unsigned i, j;
1938         unsigned ndx_show, ndx_hide;
1939         MVert *nve;
1940         unsigned face_cnt_show= 0, face_ndx_show= 0;
1941         unsigned edge_cnt_show= 0, edge_ndx_show= 0;
1942         unsigned *old_map= NULL;
1943         const unsigned SHOW= 0, HIDE=1;
1944
1945         /* Convert hide box from 2D to 3D */
1946         unproject(hidebox[0], hb_2d->xmin, hb_2d->ymax, 1);
1947         unproject(hidebox[1], hb_2d->xmax, hb_2d->ymax, 1);
1948         unproject(hidebox[2], hb_2d->xmax, hb_2d->ymin, 1);
1949         unproject(hidebox[3], hb_2d->xmin, hb_2d->ymin, 1);
1950         unproject(hidebox[4], hb_2d->xmin, hb_2d->ymax, 0);
1951         unproject(hidebox[5], hb_2d->xmax, hb_2d->ymin, 0);
1952         
1953         /* Calculate normals for each side of hide box */
1954         CalcNormFloat(hidebox[0], hidebox[1], hidebox[4], &plane_normals[0].x);
1955         CalcNormFloat(hidebox[1], hidebox[2], hidebox[5], &plane_normals[1].x);
1956         CalcNormFloat(hidebox[2], hidebox[3], hidebox[5], &plane_normals[2].x);
1957         CalcNormFloat(hidebox[3], hidebox[0], hidebox[4], &plane_normals[3].x);
1958         
1959         /* Calculate D for each side of hide box */
1960         for(i= 0; i<4; ++i)
1961                 plane_ds[i]= hidebox[i][0]*plane_normals[i].x + hidebox[i][1]*plane_normals[i].y +
1962                         hidebox[i][2]*plane_normals[i].z;
1963         
1964         /* Add partial visibility to mesh */
1965         if(!me->pv) {
1966                 me->pv= MEM_callocN(sizeof(PartialVisibility),"PartialVisibility");
1967         } else {
1968                 old_map= MEM_callocN(sizeof(unsigned)*me->pv->totvert,"PMV oldmap");
1969                 for(i=0; i<me->pv->totvert; ++i) {
1970                         old_map[i]= me->pv->vert_map[i]<me->totvert?0:1;
1971                 }
1972                 mesh_pmv_revert(ob, me);
1973         }
1974         
1975         /* Kill sculpt data */
1976         active_ob= NULL;
1977         
1978         /* Initalize map with which verts are to be hidden */
1979         me->pv->vert_map= MEM_mallocN(sizeof(unsigned)*me->totvert, "PMV vertmap");
1980         me->pv->totvert= me->totvert;
1981         me->totvert= 0;
1982         for(i=0; i<me->pv->totvert; ++i) {
1983                 me->pv->vert_map[i]= mode ? HIDE:SHOW;
1984                 for(j=0; j<4; ++j) {
1985                         if(me->mvert[i].co[0] * plane_normals[j].x +
1986                            me->mvert[i].co[1] * plane_normals[j].y +
1987                            me->mvert[i].co[2] * plane_normals[j].z < plane_ds[j] ) {
1988                                 me->pv->vert_map[i]= mode ? SHOW:HIDE; /* Vert is outside the hide box */
1989                                 break;
1990                         }
1991                 }
1992                 if(old_map && old_map[i]) me->pv->vert_map[i]= 1;
1993                 if(!me->pv->vert_map[i]) ++me->totvert;
1994
1995         }
1996         if(old_map) MEM_freeN(old_map);
1997
1998         /* Find out how many faces to show */
1999         for(i=0; i<me->totface; ++i) {
2000                 if(!me->pv->vert_map[me->mface[i].v1] &&
2001                    !me->pv->vert_map[me->mface[i].v2] &&
2002                    !me->pv->vert_map[me->mface[i].v3]) {
2003                         if(me->mface[i].v4) {
2004                                 if(!me->pv->vert_map[me->mface[i].v4])
2005                                         ++face_cnt_show;
2006                         }
2007                         else ++face_cnt_show;
2008                 }
2009         }
2010         /* Find out how many edges to show */
2011         for(i=0; i<me->totedge; ++i) {
2012                 if(!me->pv->vert_map[me->medge[i].v1] &&
2013                    !me->pv->vert_map[me->medge[i].v2])
2014                         ++edge_cnt_show;
2015         }
2016
2017         /* Create new vert array and reset each vert's map with map[old]=new index */
2018         nve= MEM_mallocN(sizeof(MVert)*me->pv->totvert, "PMV verts");
2019         ndx_show= 0; ndx_hide= me->totvert;
2020         for(i=0; i<me->pv->totvert; ++i) {
2021                 if(me->pv->vert_map[i]) {
2022                         me->pv->vert_map[i]= ndx_hide;
2023                         nve[me->pv->vert_map[i]]= me->mvert[i];
2024                         ++ndx_hide;
2025                 } else {
2026                         me->pv->vert_map[i]= ndx_show;
2027                         nve[me->pv->vert_map[i]]= me->mvert[i];
2028                         ++ndx_show;
2029                 }
2030         }
2031         CustomData_free_layer_active(&me->vdata, CD_MVERT, me->pv->totvert);
2032         me->mvert= CustomData_add_layer(&me->vdata, CD_MVERT, CD_ASSIGN, nve, me->totvert);
2033
2034         /* Create new face array */
2035         me->pv->old_faces= me->mface;
2036         me->pv->totface= me->totface;
2037         me->mface= MEM_mallocN(sizeof(MFace)*face_cnt_show, "PMV faces");
2038         for(i=0; i<me->totface; ++i) {
2039                 MFace *pr_f= &me->pv->old_faces[i];
2040                 char show= 0;
2041
2042                 if(me->pv->vert_map[pr_f->v1] < me->totvert &&
2043                    me->pv->vert_map[pr_f->v2] < me->totvert &&
2044                    me->pv->vert_map[pr_f->v3] < me->totvert) {
2045                         if(pr_f->v4) {
2046                                 if(me->pv->vert_map[pr_f->v4] < me->totvert)
2047                                         show= 1;
2048                         }
2049                         else show= 1;
2050                 }
2051
2052                 if(show) {
2053                         MFace *cr_f= &me->mface[face_ndx_show];
2054                         *cr_f= *pr_f;
2055                         cr_f->v1= me->pv->vert_map[pr_f->v1];
2056                         cr_f->v2= me->pv->vert_map[pr_f->v2];
2057                         cr_f->v3= me->pv->vert_map[pr_f->v3];
2058                         cr_f->v4= pr_f->v4 ? me->pv->vert_map[pr_f->v4] : 0;
2059                         test_index_face(cr_f,NULL,0,pr_f->v4?4:3);
2060                         ++face_ndx_show;
2061                 }
2062         }
2063         me->totface= face_cnt_show;
2064         CustomData_set_layer(&me->fdata, CD_MFACE, me->mface);
2065
2066         /* Create new edge array */
2067         me->pv->old_edges= me->medge;
2068         me->pv->totedge= me->totedge;
2069         me->medge= MEM_mallocN(sizeof(MEdge)*edge_cnt_show, "PMV edges");
2070         me->pv->edge_map= MEM_mallocN(sizeof(int)*me->pv->totedge,"PMV edgemap");
2071         for(i=0; i<me->totedge; ++i) {
2072                 if(me->pv->vert_map[me->pv->old_edges[i].v1] < me->totvert &&
2073                    me->pv->vert_map[me->pv->old_edges[i].v2] < me->totvert) {
2074                         MEdge *cr_e= &me->medge[edge_ndx_show];
2075                         me->pv->edge_map[i]= edge_ndx_show;
2076                         *cr_e= me->pv->old_edges[i];
2077                         cr_e->v1= me->pv->vert_map[me->pv->old_edges[i].v1];
2078                         cr_e->v2= me->pv->vert_map[me->pv->old_edges[i].v2];
2079                         ++edge_ndx_show;
2080                 }
2081                 else me->pv->edge_map[i]= -1;
2082         }
2083         me->totedge= edge_cnt_show;
2084         CustomData_set_layer(&me->edata, CD_MEDGE, me->medge);
2085
2086         /* XXX: DAG_object_flush_update(G.scene, OBACT, OB_RECALC_DATA); */
2087 }
2088
2089 static rcti sculptmode_pmv_box()
2090 {
2091         /*XXX:  short down[2], mouse[2];
2092         rcti ret;
2093
2094         getmouseco_areawin(down);
2095
2096         while((get_mbut()&L_MOUSE) || (get_mbut()&R_MOUSE)) {
2097                 getmouseco_areawin(mouse);
2098
2099                 scrarea_do_windraw(curarea);
2100
2101                 persp(PERSP_WIN);
2102                 glLineWidth(2);
2103                 setlinestyle(2);
2104                 sdrawXORline(down[0],down[1],mouse[0],down[1]);
2105                 sdrawXORline(mouse[0],down[1],mouse[0],mouse[1]);
2106                 sdrawXORline(mouse[0],mouse[1],down[0],mouse[1]);
2107                 sdrawXORline(down[0],mouse[1],down[0],down[1]);
2108                 setlinestyle(0);
2109                 glLineWidth(1);
2110                 persp(PERSP_VIEW);
2111
2112                 screen_swapbuffers();
2113                 backdrawview3d(0);
2114         }
2115
2116         ret.xmin= down[0]<mouse[0]?down[0]:mouse[0];
2117         ret.ymin= down[1]<mouse[1]?down[1]:mouse[1];
2118         ret.xmax= down[0]>mouse[0]?down[0]:mouse[0];
2119         ret.ymax= down[1]>mouse[1]?down[1]:mouse[1];
2120         return ret;*/
2121 }
2122
2123 void sculptmode_pmv(int mode)
2124 {
2125         Object *ob= NULL; /*XXX: OBACT; */
2126         rcti hb_2d;
2127         
2128         if(ob_get_key(ob)) {
2129                 error("Cannot hide mesh with shape keys enabled");
2130                 return;
2131         }
2132         
2133         hb_2d= sculptmode_pmv_box(); /* Get 2D hide box */
2134         
2135         sculptmode_correct_state();
2136
2137         waitcursor(1);
2138
2139         if(hb_2d.xmax-hb_2d.xmin > 3 && hb_2d.ymax-hb_2d.ymin > 3) {
2140                 init_sculptmatrices();
2141
2142                 sculptmode_do_pmv(ob,&hb_2d,mode);
2143         }
2144         else mesh_pmv_off(ob, get_mesh(ob));
2145
2146         /*XXX: scrarea_do_windraw(curarea); */
2147
2148         waitcursor(0);
2149 }
2150 #endif