*/}}

la_tns_mesh.c 44 KB

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  1. /*
  2. * LaGUI: A graphical application framework.
  3. * Copyright (C) 2022-2023 Wu Yiming
  4. *
  5. * This program is free software: you can redistribute it and/or modify
  6. * it under the terms of the GNU General Public License as published by
  7. * the Free Software Foundation, either version 3 of the License, or
  8. * (at your option) any later version.
  9. *
  10. * This program is distributed in the hope that it will be useful,
  11. * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12. * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  13. * GNU General Public License for more details.
  14. *
  15. * You should have received a copy of the GNU General Public License
  16. * along with this program. If not, see <http://www.gnu.org/licenses/>.
  17. */
  18. #include "la_5.h"
  19. #include <math.h>
  20. extern tnsMain *T;
  21. void tnsMMeshClearFirstLastSelection(tnsMeshObject* mo);
  22. void tnsPrintMeshTopology(tnsMeshObject*mo){
  23. for(tnsMVert* mv=mo->mv.pFirst;mv;mv=mv->Item.pNext){ printf("%d ",mv->i); } printf("\n");
  24. for(tnsMEdge* me=mo->me.pFirst;me;me=me->Item.pNext){ printf("%d-%d ",me->vl->i,me->vr->i); } printf("\n");
  25. for(tnsMFace* mf=mo->mf.pFirst;mf;mf=mf->Item.pNext){ printf("%d-[",mf->looplen);
  26. for(laListItemPointer* lip=mf->l.pFirst;lip;lip=lip->pNext){ tnsMEdge*ie=lip->p;
  27. printf("%d%s%d ",ie->vl->i,(ie->fl&&ie->fr)?":":(ie->fl?"l":(ie->fr?"r":"-")),ie->vr->i); }
  28. printf("] ");
  29. }printf("\n");
  30. }
  31. tnsEdgeHash* tnsCreateEdgeHash(int OptionalInitialVertCount){
  32. tnsEdgeHash*eh=memAcquireSimple(sizeof(tnsEdgeHash));
  33. eh->max=OptionalInitialVertCount;
  34. if(eh->max<16) eh->max=16;
  35. arrInitLength(&eh->vl,eh->max,&eh->max, sizeof(tnsEdgeHashVert));
  36. return eh;
  37. }
  38. void tnsDestroyEdgeHash(tnsEdgeHash* eh){
  39. for(int i=0;i<eh->max;i++){
  40. tnsEdgeHashVert* ehv=&eh->vl[i];
  41. if(ehv->e) free(ehv->e);
  42. }
  43. if(eh->vl) free(eh->vl);
  44. memFree(eh);
  45. }
  46. void tnsEdgeHashAddVertPair(tnsEdgeHash* eh, int v1, int v2){
  47. if(v1==v2) return; if(v1>v2) LA_SWAP(int, v1,v2); if(v1>=eh->max) return;
  48. tnsEdgeHashVert* ehv=&eh->vl[v1];
  49. if(!ehv->e) arrInitLength(&ehv->e,1,&ehv->max, sizeof(tnsEdgeHashEdge));
  50. else arrEnsureLength(&ehv->e, ehv->next, &ehv->max, sizeof(tnsEdgeHashEdge));
  51. for(int i=0;i<ehv->next;i++){ if(ehv->e[i].tv==v2) return; }
  52. ehv->e[ehv->next].tv=v2;
  53. ehv->next++;
  54. }
  55. tnsEdgeHashEdge* tnsEdgeHashGetEdge(tnsEdgeHash* eh, int v1, int v2){
  56. if(v1==v2) return 0; if(v1>v2) LA_SWAP(int, v1,v2); if(v1>=eh->max) return 0;
  57. tnsEdgeHashVert* ehv=&eh->vl[v1];
  58. for(int i=0;i<ehv->next;i++){ if(ehv->e[i].tv==v2) return &ehv->e[i]; }
  59. return 0;
  60. }
  61. void tnsInitMesh(tnsMeshObject* mo, int Initialv, int Initiale, int Initialf){
  62. arrInitLength(&mo->v, Initialv, &mo->maxv, sizeof(tnsVert));
  63. arrInitLength(&mo->e, Initiale, &mo->maxe, sizeof(tnsEdge));
  64. arrInitLength(&mo->f, Initialf, &mo->maxf, sizeof(tnsFace));
  65. }
  66. tnsVert* tnsFillVertI(tnsMeshObject* mo, int index, real x, real y, real z){
  67. arrEnsureLength(&mo->v, index, &mo->maxv, sizeof(tnsVert));
  68. mo->v[index].p[0]=x;
  69. mo->v[index].p[1]=y;
  70. mo->v[index].p[2]=z;
  71. return &mo->v[index];
  72. }
  73. tnsVert* tnsFillVert(tnsMeshObject* mo, real x, real y, real z){
  74. int index=mo->totv; mo->totv++;
  75. return tnsFillVertI(mo, index, x,y,z);
  76. }
  77. tnsFace* tnsFillFace(tnsMeshObject* mo, int vertcount, ...){
  78. arrEnsureLength(&mo->f, mo->totf, &mo->maxf, sizeof(tnsFace));
  79. arrInitLength(&mo->f[mo->totf].loop, vertcount, &mo->f[mo->totf].looplen, sizeof(int));
  80. va_list list; va_start(list, vertcount); int id=va_arg(list, int); if(id==-1){ va_end(list); mo->totf++; return &mo->f[mo->totf-1]; }
  81. for(int i=0;i<vertcount;i++){ mo->f[mo->totf].loop[i]=id; id=va_arg(list, int); }
  82. va_end(list);
  83. mo->totf++; return &mo->f[mo->totf-1];
  84. }
  85. void tnsFillFaceLoop(tnsFace* f, int i, int v){ f->loop[i]=v; }
  86. void tnsFillFaceNormal(tnsFace* f, real* normal){ tnsVectorSet3v(f->n, normal); }
  87. void tnsFillVertNormal(tnsVert* v, real* normal){ tnsVectorSet3v(v->n, normal); }
  88. int tnsMergeMeshObjects(tnsMeshObject* into, tnsMeshObject* mo){
  89. if(into->Base.Type!=TNS_OBJECT_MESH||mo->Base.Type!=TNS_OBJECT_MESH) return 0;
  90. if(!mo->totv){ tnsDestroyObject(mo); return 1; }
  91. tnsVector3d v,vf; tnsMatrix44d inv; tnsInverse44d(inv, into->Base.GlobalTransform);
  92. for(int i=0;i<mo->totv;i++){
  93. tnsVectorSet3v(v,mo->v[i].p); tnsApplyTransform43d(vf, mo->Base.GlobalTransform, v);
  94. tnsApplyTransform43d(v, inv, vf); tnsVectorSet3v(mo->v[i].p,v);
  95. }
  96. for(int i=0;i<mo->tote;i++){ mo->e[i].l+=into->totv; mo->e[i].r+=into->totv; }
  97. for(int i=0;i<mo->totf;i++){ for(int l=0;l<mo->f[i].looplen;l++){ mo->f[i].loop[l]+=into->totv; } }
  98. int origv=into->totv, orige=into->tote, origf=into->totf;
  99. into->maxv=into->totv; into->maxe=into->tote; into->maxf=into->totf;
  100. into->totv+=mo->totv; into->tote+=mo->tote; into->totf+=mo->totf;
  101. arrEnsureLength(&into->v, into->totv, &into->maxv, sizeof(tnsVert)); if(mo->totv) memcpy(&into->v[origv],mo->v,sizeof(tnsVert)*mo->totv);
  102. arrEnsureLength(&into->e, into->tote, &into->maxe, sizeof(tnsEdge)); if(mo->tote) memcpy(&into->e[orige],mo->e,sizeof(tnsEdge)*mo->tote);
  103. arrEnsureLength(&into->f, into->totf, &into->maxf, sizeof(tnsFace)); if(mo->totf){ memcpy(&into->f[origf],mo->f,sizeof(tnsFace)*mo->totf);
  104. for(int i=origf;i<into->totf;i++){ into->f[i].loop=0; arrInitLength(&into->f[i].loop, into->f[i].looplen, &into->f[i].looplen, sizeof(int));
  105. for(int l=0;l<into->f[i].looplen;l++){ into->f[i].loop[l]=mo->f[i-origf].loop[l]; }
  106. }
  107. }
  108. tnsDestroyObject(mo); return 1;
  109. }
  110. tnsMeshObject* tnsDuplicateMeshObject(tnsMeshObject* from){
  111. if(from->Base.Type!=TNS_OBJECT_MESH) return 0;
  112. tnsMeshObject* to = memAcquireHyper(sizeof(tnsMeshObject));
  113. tnsInitObjectBase(to, from->Base.ParentObject?from->Base.ParentObject:from->Base.InRoot, from->Base.Name->Ptr, TNS_OBJECT_MESH,0,0,0,0,0,0,0,0,1);
  114. tnsCopyObjectTransformationsLocal(to,from);
  115. if(!from->totv){ return to; }
  116. to->totv=from->totv; to->tote=from->tote; to->totf=from->totf;
  117. arrInitLength(&to->v, to->totv, &to->maxv, sizeof(tnsVert)); if(from->totv) memcpy(to->v,from->v,sizeof(tnsVert)*from->totv);
  118. arrInitLength(&to->e, to->tote, &to->maxe, sizeof(tnsEdge)); if(from->tote) memcpy(to->e,from->e,sizeof(tnsEdge)*from->tote);
  119. arrInitLength(&to->f, to->totf, &to->maxf, sizeof(tnsFace)); if(from->totf) memcpy(to->f,from->f,sizeof(tnsFace)*from->totf);
  120. for(int i=0;i<to->totf;i++){ to->f[i].loop=0; arrInitLength(&to->f[i].loop, to->f[i].looplen, &to->f[i].looplen, sizeof(int));
  121. for(int l=0;l<to->f[i].looplen;l++){ to->f[i].loop[l]=from->f[i].loop[l]; }
  122. }
  123. return to;
  124. }
  125. void tnsInitMeshPlane(tnsMeshObject* mo, real size){
  126. tnsInitMesh(mo, 4,0,1);
  127. tnsFillVert(mo, size, size,0); tnsFillVert(mo,-size, size,0);
  128. tnsFillVert(mo,-size,-size,0); tnsFillVert(mo, size,-size,0);
  129. tnsFace* f=tnsFillFace(mo, 4, 0,1,2,3); tnsVector3d n={0,0,1}; tnsFillFaceNormal(f,n);
  130. mo->v[0].flags|=TNS_MESH_FLAG_SELECTED;
  131. mo->v[1].flags|=TNS_MESH_FLAG_SELECTED;
  132. mo->v[2].flags|=TNS_MESH_FLAG_SELECTED;
  133. mo->v[3].flags|=TNS_MESH_FLAG_SELECTED;
  134. tnsMMeshEnsureSelectionFromVerts(mo);
  135. }
  136. void tnsAddMMeshPlane(tnsMeshObject* mo, real size){
  137. tnsMVert *mv1,*mv2,*mv3,*mv4;
  138. mv1=tnsMMeshNewVert(mo); mv1->p[0]=size; mv1->p[1]=size; mv1->flags|=TNS_MESH_FLAG_SELECTED;
  139. mv2=tnsMMeshNewVert(mo); mv2->p[0]=-size; mv2->p[1]=size; mv2->flags|=TNS_MESH_FLAG_SELECTED;
  140. mv3=tnsMMeshNewVert(mo); mv3->p[0]=-size; mv3->p[1]=-size; mv3->flags|=TNS_MESH_FLAG_SELECTED;
  141. mv4=tnsMMeshNewVert(mo); mv4->p[0]=size; mv4->p[1]=-size; mv4->flags|=TNS_MESH_FLAG_SELECTED;
  142. tnsMMeshMakeFace4v(mo,mv1,mv2,mv3,mv4);
  143. }
  144. void tnsTrangulateFaceSimple(tnsMeshObject* mo, int fi, tnsFace* f, int* ebuf){
  145. for(int i=0;i<f->looplen-2;i++){
  146. ebuf[i*3]=f->loop[i];
  147. ebuf[i*3+1]=f->loop[i+1];
  148. ebuf[i*3+2]=fi+mo->totv; //f->loop[i+2];
  149. }
  150. }
  151. void tnsTrangulateFaceSimpleM(tnsMeshObject* mo, int fi, tnsMFace* mf, int* ebuf){
  152. tnsMVert* mv=0,*mvs; int i=0;
  153. for(laListItemPointer* lip=mf->l.pFirst;lip;lip=lip->pNext){
  154. laListItemPointer* next=lip->pNext; if(!next) next=mf->l.pFirst; tnsMEdge* me0=lip->p, *me1=next->p;
  155. if(next==mf->l.pLast){ break; }
  156. mvs=tnsMMeshEdgeStartingVert(me0,me1);
  157. if(!mv) mv=mvs;
  158. ebuf[i*3]=mvs->i; tnsMVert*mm=tnsMMeshEdgeAnotherVert(me0,mvs);
  159. ebuf[i*3+1]=mm->i;
  160. ebuf[i*3+2]=fi+mo->totmv; /*tnsMMeshEdgeAnotherVert(me1,mm)->i;*/ i++;
  161. }
  162. }
  163. tnsMVert* tnsGetMFaceLastVert(tnsMFace* mf){
  164. laListItemPointer* lip=mf->l.pLast; laListItemPointer* next=mf->l.pFirst; tnsMEdge* me0=lip->p, *me1=next->p;
  165. return tnsMMeshEdgeStartingVert(me0,me1);
  166. }
  167. int* tnsGetTriangulatedBatch(tnsMeshObject* mo, int* totelem){
  168. int tottri=0;
  169. if(mo->Mode==TNS_MESH_OBJECT_MODE){ for(int i=0;i<mo->totf;i++){ tottri+=(mo->f[i].looplen-2); } }
  170. else{ for(tnsMFace* mf=mo->mf.pFirst;mf;mf=mf->Item.pNext){ tottri+=mf->looplen-2; } }
  171. if(!tottri) return 0;
  172. int* ebuf=calloc(1,sizeof(int)*tottri*3); int* pebuf=ebuf;
  173. if(mo->Mode==TNS_MESH_OBJECT_MODE){ for(int i=0;i<mo->totf;i++){ tnsTrangulateFaceSimple(mo, i, &mo->f[i], pebuf); pebuf+=(mo->f[i].looplen-2)*3; } }
  174. else{ int i=0; for(tnsMFace* mf=mo->mf.pFirst;mf;mf=mf->Item.pNext){ tnsTrangulateFaceSimpleM(mo, i, mf, pebuf); pebuf+=(mf->looplen-2)*3; i++; } }
  175. *totelem = tottri;
  176. return ebuf;
  177. }
  178. float* tnsGetDrawingVertArray(tnsMeshObject* mo, int* r_tot_render_v, float** r_normals, float** idcolors, float** editcolors, int** edgeelems, int* r_tote){
  179. if(!mo->totv&&!mo->totmv) return 0;
  180. int objmode=mo->Mode==TNS_MESH_OBJECT_MODE;
  181. int totv=objmode?mo->totv:mo->totmv;
  182. int tote=objmode?mo->tote:mo->totme; *r_tote=tote;
  183. int totf=objmode?mo->totf:mo->totmf;
  184. int extraverts=objmode?mo->totf:(mo->totme*2+mo->totmf);
  185. float* p=calloc(1,(totv+extraverts)*3*sizeof(float)); *r_tot_render_v=(totv+extraverts);
  186. float* n=calloc(1,(totv+extraverts)*3*sizeof(float)); *r_normals = n;
  187. if(objmode){
  188. for(int i=0;i<totv;i++){ tnsVectorSet3v(&p[i*3],mo->v[i].p); tnsVectorSet3v(&n[i*3],mo->v[i].n); }
  189. int start=mo->totv*3; for(int i=0;i<totf;i++){
  190. tnsVectorSet3v(&p[start+i*3],mo->v[mo->f[i].loop[mo->f[i].looplen-1]].p); tnsVectorSet3v(&n[start+i*3],mo->f[i].n);
  191. }
  192. }else{
  193. (*idcolors)=calloc(1,(totv+extraverts)*3*sizeof(float));
  194. if(extraverts){
  195. (*edgeelems)=calloc(1,(extraverts)*2*sizeof(int));
  196. (*editcolors)=calloc(1,totv*4*sizeof(float)*extraverts);
  197. }
  198. for(tnsMVert*mv=mo->mv.pFirst;mv;mv=mv->Item.pNext){ int i=mv->i;
  199. tnsVectorSet3v(&p[i*3],mv->p); tnsVectorSet3v(&n[i*3],mv->n);
  200. int id=(i+1); real r=(real)((id & 0x000000FF)>>0)/255.0; real g=(real)((id & 0x0000FF00)>>8)/255.0; real b=(real)((id & 0x00FF0000)>>16)/255.0;
  201. (*idcolors)[i*3]=r; (*idcolors)[i*3+1]=g; (*idcolors)[i*3+2]=b;
  202. real* c=(mv->flags&TNS_MESH_FLAG_SELECTED)?laAccentColor(LA_BT_SVERTEX):laAccentColor(LA_BT_VERTEX);
  203. if(extraverts){ (*editcolors)[i*4]=c[0]; (*editcolors)[i*4+1]=c[1]; (*editcolors)[i*4+2]=c[2]; (*editcolors)[i*4+3]=c[3];}
  204. }
  205. if(extraverts){
  206. for(tnsMEdge*me=mo->me.pFirst;me;me=me->Item.pNext){ int ei=me->i;
  207. (*edgeelems)[ei*2]=mo->totmv+mo->totmf+ei*2; (*edgeelems)[ei*2+1]=mo->totmv+mo->totmf+ei*2+1;
  208. float* eidcolor1=&(*idcolors)[(*edgeelems)[ei*2]*3], *eidcolor2=&(*idcolors)[(*edgeelems)[ei*2+1]*3];
  209. int id=((ei+1)|TNS_MMESH_EDGE_BIT); real r=(real)((id & 0x000000FF)>>0)/255.0; real g=(real)((id & 0x0000FF00)>>8)/255.0; real b=(real)((id & 0x00FF0000)>>16)/255.0;
  210. tnsVectorSet3(eidcolor1,r,g,b); tnsVectorSet3(eidcolor2,r,g,b);
  211. int se1=(*edgeelems)[ei*2]; tnsVectorSet3v(&p[se1*3],me->vl->p);
  212. int se2=(*edgeelems)[ei*2+1]; tnsVectorSet3v(&p[se2*3],me->vr->p);
  213. float* eedcolor1=&(*editcolors)[(*edgeelems)[ei*2]*4], *eedcolor2=&(*editcolors)[(*edgeelems)[ei*2+1]*4];
  214. real* c=(me->flags&TNS_MESH_FLAG_SELECTED)?laAccentColor(LA_BT_SEDGE):laAccentColor(LA_BT_EDGE);
  215. tnsVectorSet4v(eedcolor1,c); tnsVectorSet4v(eedcolor2,c);
  216. }
  217. }
  218. int start=mo->totmv*3; int fi=0; for(tnsMFace*mf=mo->mf.pFirst;mf;mf=mf->Item.pNext){
  219. tnsMVert* sv=tnsGetMFaceLastVert(mf); tnsVectorSet3v(&p[start+fi*3],sv->p); tnsVectorSet3v(&n[start+fi*3],mf->n); fi++;
  220. }
  221. }
  222. return p;
  223. }
  224. int* tnsGetEdgeBatch(tnsMeshObject* mo){
  225. if(!mo->totme) return 0;
  226. int* ebuf=calloc(1,sizeof(int)*mo->totme*2); int* pebuf=ebuf; int i=0;
  227. for(tnsMEdge* me=mo->me.pFirst;me;me=me->Item.pNext){ ebuf[i*2]=me->vl->i; ebuf[i*2+1]=me->vr->i; i++; }
  228. return ebuf;
  229. }
  230. void tnsInvalidateMeshBatch(tnsMeshObject* mo){
  231. if(mo->Base.Type!=TNS_OBJECT_MESH) return;
  232. if(mo->Batch) tnsDeleteBatch(mo->Batch); mo->Batch=0;
  233. }
  234. void tnsRegenerateMeshBatch(tnsMeshObject* mo){
  235. if(!mo) return;
  236. if(mo->Batch) tnsDeleteBatch(mo->Batch); mo->Batch=0;
  237. real meshcolor[4]={0.8,0.8,0.8,1};
  238. int tottri; int* elem = tnsGetTriangulatedBatch(mo, &tottri);
  239. float* idcolors=0,*editcolors=0; int docolors=mo->Mode==TNS_MESH_EDIT_MODE;
  240. int totv,tote; int* eelems=0; float* n=0;
  241. float* v = tnsGetDrawingVertArray(mo,&totv,&n,&idcolors,&editcolors,&eelems,&tote);
  242. if(!v){ if(elem){free(elem);} if(eelems){free(eelems);} return; }
  243. mo->Batch = tnsCreateBatch(totv, 3, v, 3, n, 4, editcolors);
  244. tnsBatchCommand*c;
  245. if(elem){
  246. c=tnsCreateCommand(mo->Batch, "body", tottri, 3, GL_TRIANGLES, elem, 0);
  247. tnsCommandUseUniformColor(c,meshcolor);
  248. }
  249. free(elem); free(v); free(n);
  250. if(mo->Mode==TNS_MESH_EDIT_MODE){
  251. elem=tnsGetEdgeBatch(mo); if(elem) {
  252. c= tnsCreateCommand(mo->Batch, "lines", mo->totme, 2, GL_LINES, elem, 1); free(elem);
  253. //tnsCommandUseUniformColor(c, laAccentColor(LA_BT_EDGE));
  254. }
  255. c= tnsCreateCommand(mo->Batch, "verts", mo->totmv, 3, GL_POINTS, 0, 1);
  256. c= tnsCreateCommand(mo->Batch, "verts_select", mo->totmv, 3, GL_POINTS, 0, 1);
  257. tnsCommandOverrideColorArray(c, mo->Batch->NumVert, 3, idcolors);
  258. if(eelems){
  259. c= tnsCreateCommand(mo->Batch, "edges_select", mo->totme, 2, GL_LINES, eelems, 1);
  260. tnsCommandOverrideColorArray(c, mo->Batch->NumVert, 3, idcolors);
  261. c= tnsCreateCommand(mo->Batch, "edges", mo->totme, 2, GL_LINES, eelems, 1);
  262. tnsCommandOverrideColorArray(c, mo->Batch->NumVert, 4, editcolors);
  263. }
  264. //for(int i=0;i<mo->totme*2;i++){ printf("%d ",eelems[i]); } printf("\n");
  265. }
  266. if(idcolors) free(idcolors); if(editcolors) free(editcolors); if(eelems) free(eelems);
  267. }
  268. void tnsEnsureMeshBatch(tnsMeshObject* mo){
  269. if(mo->Base.Type!=TNS_OBJECT_MESH) return;
  270. if(mo->Batch) return;
  271. tnsRegenerateMeshBatch(mo);
  272. }
  273. void tnsDrawMeshObjectEdit(tnsMeshObject* mo, int MeshSelectionType){
  274. tnsUniformUseOffset(T->immShader,1);
  275. glPointSize(6); glLineWidth(3);
  276. if(MeshSelectionType==LA_CANVAS_SELECT_MODE_VERTS){
  277. tnsDrawBatch(mo->Batch,"verts",0,0); tnsDrawBatch(mo->Batch,"lines",0,0);
  278. }else{
  279. tnsDrawBatch(mo->Batch,"edges",0,0);
  280. }
  281. glPointSize(1); glLineWidth(1);
  282. tnsUniformUseOffset(T->immShader,0);
  283. }
  284. void tnsDrawMeshObjectOverlay(tnsEvaluatedInstance* ei, la3DObjectDrawExtra* de){
  285. tnsEnsureMeshBatch(ei->Object);
  286. tnsDrawMeshObjectEdit(ei->Object, de?de->MeshEditType:LA_CANVAS_SELECT_MODE_VERTS);
  287. if(((tnsMeshObject*)ei->Object)->ExtraBatch){ tnsDrawBatch(((tnsMeshObject*)ei->Object)->ExtraBatch,0,0,0); }
  288. }
  289. void tnsDrawMeshObjectSelectionID(tnsEvaluatedInstance* ei, void* unused){
  290. tnsEnsureMeshBatch(ei->Object);
  291. int i=ei->InstanceSelectionID; real color[4]={0,0,0,1}; TNS_ID_TO_COLOR(color,i);
  292. tnsDrawBatch(((tnsMeshObject*)ei->Object)->Batch,"body",color,0);
  293. }
  294. void tnsDrawMeshObjectOutline(tnsEvaluatedInstance* ei, void* unused){
  295. real* color=(ei->IsActive)?laAccentColor(LA_BT_TEXT):laAccentColor(LA_BT_NORMAL);
  296. tnsDrawBatch(((tnsMeshObject*)ei->Object)->Batch, "body", color, 0);
  297. }
  298. void tnsDrawMeshObject(tnsEvaluatedInstance* ei, void* unused){
  299. tnsEnsureMeshBatch(ei->Object);
  300. tnsUseNormal(1); tnsDrawBatch(((tnsMeshObject*)ei->Object)->Batch,"body",0,0); tnsUseNormal(0);
  301. }
  302. void tnsEvaluateMeshObject(tnsMeshObject* mo, tnsEvaluateData* ed){
  303. tnsEnsureMeshBatch(mo);
  304. tnsAddEvaluatedInstance(ed,mo,tnsDrawMeshObject,TNS_EVAL_LAYER_SOLID,0,0,0);
  305. if(ed->FillOutline && (!ed->OverrideID)){
  306. if((mo->Base.Flags&TNS_OBJECT_FLAGS_SELECTED) && (mo->Mode!=TNS_MESH_EDIT_MODE)){
  307. tnsAddEvaluatedInstance(ed,mo,tnsDrawMeshObjectOutline,TNS_EVAL_LAYER_OUTLINE,ed->Active==mo,0,0);
  308. }
  309. }
  310. if(ed->FillSelectionID){
  311. tnsAddEvaluatedInstance(ed,mo,tnsDrawMeshObjectSelectionID,TNS_EVAL_LAYER_SELECTION,0,1,mo->Base.SelectID);
  312. }
  313. if(mo->Mode==TNS_MESH_EDIT_MODE && (!ed->OverrideID)){
  314. tnsAddEvaluatedInstance(ed,mo,tnsDrawMeshObjectOverlay,TNS_EVAL_LAYER_OVERLAY,0,0,0);
  315. }
  316. }
  317. tnsMFace* tnsMMeshNewFace(tnsMeshObject* mo){ tnsMFace* mf=memAcquireSimple(sizeof(tnsMFace)); mf->i=mo->totmf; mo->totmf++; lstAppendItem(&mo->mf,mf); return mf; }
  318. tnsMEdge* tnsMMeshNewEdge(tnsMeshObject* mo){ tnsMEdge* me=memAcquireSimple(sizeof(tnsMEdge)); me->i=mo->totme; mo->totme++; lstAppendItem(&mo->me,me); return me; }
  319. tnsMVert* tnsMMeshNewVert(tnsMeshObject* mo){ tnsMVert* mv=memAcquireSimple(sizeof(tnsMVert)); mv->i=mo->totmv; mo->totmv++; lstAppendItem(&mo->mv,mv); return mv; }
  320. void tnsMMeshCalculateNormalFrom(tnsMFace* mf){
  321. tnsVector3d accum={0}; tnsVector3d d0,d1; tnsVector3d naccum={0},nn={0};if(mf->flags&TNS_MESH_FLAG_PICKED) return;
  322. for(laListItemPointer* lip=mf->l.pFirst;lip;lip=lip->pNext){
  323. laListItemPointer* next=lip->pNext; if(!next) next=mf->l.pFirst; tnsMEdge* me0=lip->p, *me1=next->p;
  324. tnsMVert* v0=tnsMMeshEdgeStartingVert(me0,me1); tnsMVert* v1=tnsMMeshEdgeShareVert(me0,me1); tnsMVert* v2=tnsMMeshEdgeAnotherVert(me1, v1);
  325. tnsVectorAccum3d(accum, v0->p); tnsVectorAccum3d(accum, v1->p); tnsVectorAccum3d(accum, v2->p);
  326. tnsVectorMinus3d(d0,v0->p,v1->p); tnsVectorMinus3d(d1,v2->p,v1->p); real len=tnsVectorCross3d(nn,d0,d1); tnsVectorMultiSelf3d(nn, len);
  327. tnsVectorAccum3d(naccum, nn);
  328. //if(v0==me0->vr){ me0->flags|=TNS_MESH_FLAG_LOOP_REVERSE; } // TODO: consistency not implemented.
  329. }
  330. tnsNormalize3d(mf->n, naccum); tnsVectorMulti3d(mf->c, accum, 1.0/(mf->looplen+2));
  331. mf->flags|=TNS_MESH_FLAG_PICKED;
  332. if(mf->flags&TNS_MESH_FLAG_SELECTED){
  333. for(laListItemPointer* lip=mf->l.pFirst;lip;lip=lip->pNext){
  334. tnsMEdge* me=lip->p; tnsMFace* of=((mf==me->fl)?me->fr:me->fl);
  335. if(of) tnsMMeshCalculateNormalFrom(of);
  336. }
  337. }
  338. }
  339. void tnsMMeshCalculateFaceVertNormal(tnsMFace* mf){
  340. tnsVector3d accum={0};
  341. for(laListItemPointer* lip=mf->l.pFirst;lip;lip=lip->pNext){
  342. laListItemPointer* next=lip->pNext; if(!next) next=mf->l.pFirst; tnsMEdge* me0=lip->p, *me1=next->p;
  343. tnsMVert* mv=tnsMMeshEdgeStartingVert(me0,me1); int fcount=0;
  344. for(laListItemPointer* el=mv->elink.pFirst;el;el=el->pNext){ tnsMEdge* ve=lip->p;
  345. if(ve->fl){ tnsVectorAccum3d(accum, ve->fl->n); fcount++; }
  346. if(ve->fr){ tnsVectorAccum3d(accum, ve->fr->n); fcount++; }
  347. }
  348. if(!fcount) accum[2]=1; else tnsNormalizeSelf3d(accum);
  349. tnsVectorSet3v(mv->n, accum);
  350. }
  351. }
  352. int tnsMMeshCalculateNormal(tnsMeshObject* mo){
  353. tnsMMeshClearExtraFlags(mo); int ran=0;
  354. for(tnsMVert* mv=mo->mv.pFirst;mv;mv=mv->Item.pNext){ if(!(mv->flags&TNS_MESH_FLAG_SELECTED)) continue;
  355. for(laListItemPointer* lip=mv->elink.pFirst; lip;lip=lip->pNext){
  356. tnsMEdge*me=lip->p; if((!me->fl) && (!me->fr)) continue;
  357. if(me->fl) tnsMMeshCalculateNormalFrom(me->fl); if(me->fr) tnsMMeshCalculateNormalFrom(me->fr); ran=1;
  358. }
  359. }
  360. //for(tnsMFace* mf=mo->mf.pFirst;mf;mf=mf->Item.pNext){ if((!(mf->flags&TNS_MESH_FLAG_SELECTED))||(mf->flags&TNS_MESH_FLAG_PICKED)) continue;
  361. // tnsMMeshCalculateNormalFrom(mf); ran=1;
  362. //}
  363. for(tnsMFace* mf=mo->mf.pFirst;mf;mf=mf->Item.pNext){ if(!(mf->flags&TNS_MESH_FLAG_PICKED)) continue;
  364. tnsMMeshCalculateFaceVertNormal(mf); ran=1;
  365. }
  366. return ran;
  367. }
  368. void tnsMMeshEdgeAssignVerts(tnsMEdge* me,tnsMVert* mv1,tnsMVert* mv2){
  369. if(me->vl||me->vr){ return; } //if((me->vl==mv1&&me->vr=mv2) || (me->vl==mv2&&me->vr=mv1))
  370. me->vl=mv1; me->vr=mv2;
  371. lstAppendPointer(&me->vl->elink,me); lstAppendPointer(&me->vr->elink,me);
  372. }
  373. tnsMEdge* tnsMMeshVertsShareEdge(tnsMVert* mv0, tnsMVert* mv1){
  374. for(laListItemPointer*lip=mv0->elink.pFirst;lip;lip=lip->pNext){ tnsMEdge* me=lip->p; if(tnsMMeshEdgeAnotherVert(me, mv0)==mv1) return me; } return 0;
  375. }
  376. int tnsMMeshEdgeHasVert(tnsMEdge* me, tnsMVert* mv){
  377. if(me->vl==mv || me->vr==mv) return 1; return 0;
  378. }
  379. tnsMFace* tnsMMeshEdgeShareFace(tnsMEdge* me0, tnsMEdge* me1){
  380. if(me0->fl==me1->fl || me0->fl==me1->fr) return me0->fl;
  381. if(me0->fr==me1->fl || me0->fr==me1->fr) return me0->fr;
  382. return 0;
  383. }
  384. tnsMVert* tnsMMeshEdgeShareVert(tnsMEdge* me0, tnsMEdge* me1){
  385. if(me0->vl==me1->vl || me0->vl==me1->vr) return me0->vl;
  386. if(me0->vr==me1->vl || me0->vr==me1->vr) return me0->vr;
  387. return 0;
  388. }
  389. tnsMVert* tnsMMeshEdgeAnotherVert(tnsMEdge* me, tnsMVert* v){
  390. if(me->vl==v) return me->vr; if(me->vr==v) return me->vl;
  391. return 0;
  392. }
  393. tnsMVert* tnsMMeshEdgeStartingVert(tnsMEdge* me0, tnsMEdge* me1){
  394. tnsMVert* sv=tnsMMeshEdgeShareVert(me0,me1); if(!sv) return 0;
  395. return tnsMMeshEdgeAnotherVert(me0, sv);
  396. }
  397. void tnsMMeshFaceAddEdge(tnsMFace* mf, tnsMEdge* me){
  398. lstAppendPointer(&mf->l, me); mf->looplen++;
  399. if(!me->fl) me->fl=mf; elif(!me->fr) me->fr=mf;
  400. }
  401. void tnsMMeshFaceAddEdgeReplaceFace(tnsMFace* mf, tnsMEdge* me, tnsMFace* to_be_replaced){
  402. lstAppendPointer(&mf->l, me); mf->looplen++;
  403. if(me->fl==to_be_replaced) me->fl=mf; elif(me->fr==to_be_replaced) me->fr=mf;
  404. elif(!me->fl) me->fl=mf; elif(!me->fr) me->fr=mf;
  405. }
  406. tnsMFace* tnsMMeshFaceHasVert(tnsMFace* mf, tnsMVert* mv){
  407. if(!mf||!mv) return 0; for(laListItemPointer*lip=mf->l.pFirst;lip;lip=lip->pNext){ if(tnsMMeshEdgeAnotherVert(lip->p, mv)) return mf; }
  408. return 0;
  409. }
  410. tnsMFace* tnsMMeshVertsShareFace(tnsMVert* v1, tnsMVert* v2){
  411. tnsMFace* mf=0; for(laListItemPointer*lip=v1->elink.pFirst;lip;lip=lip->pNext){
  412. tnsMEdge* me=lip->p; if((mf=tnsMMeshFaceHasVert(me->fl, v2)) || (mf=tnsMMeshFaceHasVert(me->fr, v2))) return mf;
  413. } return 0;
  414. }
  415. int tnsMMeshSplitFace(tnsMeshObject* mo, tnsMFace* mf, tnsMEdge* me, tnsMFace** r_f1, tnsMFace** r_f2){
  416. tnsMEdge* NextE; laListItemPointer* NextLip, *StartLip=0, *EndLip=0; int guard=0;
  417. for(laListItemPointer*lip=mf->l.pFirst;lip;lip=NextLip){
  418. NextLip=lip->pNext?lip->pNext:mf->l.pFirst; NextE=NextLip->p;
  419. if(tnsMMeshEdgeHasVert(me,tnsMMeshEdgeShareVert(NextE,lip->p))){
  420. if(!StartLip) StartLip=NextLip;
  421. else{EndLip=NextLip; break;} }
  422. guard++; if(guard>mf->looplen) return 0; // me is not across mf.
  423. }
  424. tnsMFace* f1=tnsMMeshNewFace(mo);
  425. for(laListItemPointer*lip=StartLip;lip;lip=NextLip){ NextLip=lip->pNext?lip->pNext:mf->l.pFirst;
  426. if(lip==EndLip){ tnsMMeshFaceAddEdgeReplaceFace(f1, me, mf); break; } tnsMMeshFaceAddEdgeReplaceFace(f1, lip->p, mf);
  427. }
  428. tnsMFace* f2=tnsMMeshNewFace(mo);
  429. for(laListItemPointer*lip=EndLip;lip;lip=NextLip){ NextLip=lip->pNext?lip->pNext:mf->l.pFirst;
  430. if(lip==StartLip){ tnsMMeshFaceAddEdgeReplaceFace(f2, me, mf); break; } tnsMMeshFaceAddEdgeReplaceFace(f2, lip->p, mf);
  431. }
  432. tnsMMeshRemoveFaceOnly(mo, mf);
  433. if(r_f1){ *r_f1=f1; } if(r_f2){ *r_f2=f2; }
  434. //tnsPrintMeshTopology(mo);
  435. return 1;
  436. }
  437. tnsMEdge* tnsMMeshMakeEdge(tnsMeshObject* mo, tnsMVert* v1, tnsMVert* v2){
  438. for(laListItemPointer*lip=v1->elink.pFirst;lip;lip=lip->pNext){ if(tnsMMeshEdgeAnotherVert(lip->p, v1)==v2) return lip->p; }
  439. // for(laListItemPointer*lip=v2->elink.pFirst;lip;lip=lip->pNext){ if(tnsMMeshEdgeAnotherVert(lip->p, v2)==v1) return lip->p; } shouldn't need.
  440. tnsMFace* mf=tnsMMeshVertsShareFace(v1,v2);
  441. tnsMEdge* me=tnsMMeshNewEdge(mo); tnsMMeshEdgeAssignVerts(me, v1, v2);
  442. if(mf){ tnsMMeshSplitFace(mo, mf, me, 0,0); }
  443. return me;
  444. }
  445. int tnsMMeshFaceMatchesN(tnsMFace* mf, int ecount, laListHandle* eip){
  446. if(!mf||mf->looplen!=ecount) return 0; laListItemPointer* lipe=eip->pFirst;
  447. for(int i=0;i<ecount;i++){
  448. tnsMEdge* me=lipe->p; int found=0; lipe=lipe->pNext;
  449. for(laListItemPointer* lip=mf->l.pFirst;lip;lip=lip->pNext){
  450. if(lip->p==me){ found=1; break; }
  451. }
  452. if(!found){ return 0; }
  453. }
  454. return 1;
  455. }
  456. int tnsMMeshFaceMatches(tnsMFace* mf, int ecount, ...){
  457. if(!mf||mf->looplen!=ecount) return 0;
  458. va_list list; va_start(list, ecount);
  459. for(int i=0;i<ecount;i++){
  460. tnsMEdge* me=va_arg(list, tnsMEdge*); int found=0;
  461. for(laListItemPointer* lip=mf->l.pFirst;lip;lip=lip->pNext){
  462. if(lip->p==me){ found=1; break; }
  463. }
  464. if(!found){ va_end(list); return 0; }
  465. }
  466. va_end(list); return 1;
  467. }
  468. tnsMFace* tnsMMeshMakeFaceN(tnsMeshObject* mo, int count, laListHandle* vip, tnsMEdge** r_fallback_me){
  469. if(count<2){ return 0; }
  470. if(count==2){ tnsMEdge* me=tnsMMeshMakeEdge(mo,((laListItemPointer*)vip->pFirst)->p,((laListItemPointer*)vip->pLast)->p); if(r_fallback_me)*r_fallback_me=me; return 0; }
  471. laListHandle el={0};
  472. for(laListItemPointer*lip=vip->pFirst;lip;lip=lip->pNext){
  473. tnsMVert* mv=lip->p; laListItemPointer*nlip=lip->pNext?((laListItemPointer*)lip->pNext):vip->pFirst; tnsMVert* nextmv=nlip->p;
  474. lstAppendPointer(&el,tnsMMeshMakeEdge(mo,mv,nextmv));
  475. }
  476. tnsMEdge* e1=((laListItemPointer*)el.pFirst)->p;
  477. if(tnsMMeshFaceMatchesN(e1->fl, count, &el))return e1->fl; if(tnsMMeshFaceMatchesN(e1->fr, count, &el))return e1->fr;
  478. for(laListItemPointer* lip=el.pFirst;lip;lip=lip->pNext){ tnsMEdge*me=lip->p; if(me->fl&&me->fr) return 0; }
  479. tnsMFace* mf=tnsMMeshNewFace(mo);
  480. for(laListItemPointer* lip=el.pFirst;lip;lip=lip->pNext){ tnsMEdge*me=lip->p; tnsMMeshFaceAddEdge(mf, me); }
  481. while(lstPopPointer(&el));
  482. return mf;
  483. }
  484. tnsMFace* tnsMMeshMakeFace4v(tnsMeshObject* mo, tnsMVert* v1,tnsMVert* v2,tnsMVert* v3,tnsMVert* v4){
  485. tnsMEdge* e1=tnsMMeshMakeEdge(mo,v1,v2); tnsMEdge* e2=tnsMMeshMakeEdge(mo,v2,v3);
  486. tnsMEdge* e3=tnsMMeshMakeEdge(mo,v3,v4); tnsMEdge* e4=tnsMMeshMakeEdge(mo,v4,v1);
  487. if(tnsMMeshFaceMatches(e1->fl,4,e1,e2,e3,e4)) return e1->fl; if(tnsMMeshFaceMatches(e1->fr,4,e1,e2,e3,e4)) return e1->fr; //should not need more
  488. if((e1->fl&&e1->fr) || (e2->fl&&e2->fr) || (e3->fl&&e3->fr) || (e4->fl&&e4->fr)) return 0;
  489. tnsMFace* mf=tnsMMeshNewFace(mo);
  490. tnsMMeshFaceAddEdge(mf,e1); tnsMMeshFaceAddEdge(mf,e2);
  491. tnsMMeshFaceAddEdge(mf,e3); tnsMMeshFaceAddEdge(mf,e4);
  492. return mf;
  493. }
  494. int tnsMMeshLoopIsInverted(laListItemPointer* l){
  495. tnsMEdge* me=l->p; if(l->pNext){ tnsMEdge*next=((laListItemPointer*)l->pNext)->p; if(me->vr==tnsMMeshEdgeShareVert(me,next))return 0; return 1; }
  496. else{ tnsMEdge*prev=((laListItemPointer*)l->pPrev)->p; if(me->vl==tnsMMeshEdgeShareVert(prev,me))return 0; return 1; }
  497. }
  498. int tnsMMeshEdgeInsertVert(tnsMeshObject* mo, tnsMEdge* me, tnsMVert* mv, tnsMVert* ref_e1v_optional, tnsMEdge** r_e1, tnsMEdge** r_e2){
  499. if(mv->elink.pFirst||mv->elink.pLast||me->vl==mv||me->vl==mv) return 0;
  500. tnsMEdge* me1=tnsMMeshNewEdge(mo),*me2=tnsMMeshNewEdge(mo);
  501. me1->fl=me2->fl=me->fl; me1->fr=me2->fr=me->fr;
  502. tnsMMeshEdgeAssignVerts(me1,me->vl,mv); tnsMMeshEdgeAssignVerts(me2,mv,me->vr);
  503. laListItemPointer* lipa1=memAcquireSimple(sizeof(laListItemPointer)),*lipa2=memAcquireSimple(sizeof(laListItemPointer)); lipa1->p=me1; lipa2->p=me2;
  504. laListItemPointer* lipb1=memAcquireSimple(sizeof(laListItemPointer)),*lipb2=memAcquireSimple(sizeof(laListItemPointer)); lipb1->p=me1; lipb2->p=me2;
  505. if(me->fl) for(laListItemPointer* lip=me->fl->l.pFirst;lip;lip=lip->pNext){
  506. tnsMEdge*ie=lip->p; if(ie!=me) continue; if(tnsMMeshLoopIsInverted(lip)){ LA_SWAP(laListItemPointer*,lipa1,lipa2); }
  507. lstInsertItemBefore(&me->fl->l,lipa1,lip); lstInsertItemBefore(&me->fl->l,lipa2,lip); lstRemoveItem(&me->fl->l, lip); memLeave(lip); me->fl->looplen++;
  508. }
  509. if(me->fr) for(laListItemPointer* lip=me->fr->l.pFirst;lip;lip=lip->pNext){
  510. tnsMEdge*ie=lip->p; if(ie!=me) continue; if(tnsMMeshLoopIsInverted(lip)){ LA_SWAP(laListItemPointer*,lipb1,lipb2); }
  511. lstInsertItemBefore(&me->fr->l,lipb1,lip); lstInsertItemBefore(&me->fr->l,lipb2,lip); lstRemoveItem(&me->fr->l, lip); memLeave(lip); me->fr->looplen++;
  512. }
  513. me->fl=me->fr=0; tnsMMeshRemoveEdgeFace(mo,me);
  514. if(ref_e1v_optional&&tnsMMeshEdgeShareVert(me1, ref_e1v_optional)){ if(r_e1)*r_e1=me1; if(r_e2)*r_e2=me2; }else{ if(r_e1)*r_e1=me2; if(r_e2)*r_e2=me1; }
  515. //tnsPrintMeshTopology(mo);
  516. return 1;
  517. }
  518. tnsMVert* tnsMMeshEdgeInsertVertAt(tnsMeshObject* mo, tnsMEdge* me, real at, tnsMVert* ref_e1v_optional, tnsMEdge** r_e1, tnsMEdge** r_e2){
  519. if(!me||at<=0||at>=1) return 0; tnsMVert* mv=tnsMMeshNewVert(mo);
  520. tnsInterpolate3dv(me->vl->p, me->vr->p, at, mv->p);
  521. if(tnsMMeshEdgeInsertVert(mo,me,mv,ref_e1v_optional,r_e1,r_e2)) return mv; return 0;
  522. }
  523. void tnsMMeshRemoveFaceOnly(tnsMeshObject* mo, tnsMFace* mf){
  524. if(!mf) return; tnsMEdge* me;
  525. while(me=lstPopPointerLeave(&mf->l)){ if(me->fl==mf) me->fl=0; elif(me->fr==mf) me->fr=0; }
  526. lstRemoveItem(&mo->mf,mf); memLeave(mf); mo->totmf--;
  527. tnsMMeshClearFirstLastSelection(mo);
  528. }
  529. void tnsMMeshRemoveEdgeFace(tnsMeshObject* mo, tnsMEdge* me){
  530. if(!me) return;
  531. tnsMMeshRemoveFaceOnly(mo, me->fl); tnsMMeshRemoveFaceOnly(mo, me->fr);
  532. lstRemovePointerLeave(&me->vl->elink, me); lstRemovePointerLeave(&me->vr->elink, me);
  533. lstRemoveItem(&mo->me,me); memLeave(me); mo->totme--;
  534. tnsMMeshClearFirstLastSelection(mo);
  535. }
  536. void tnsMMeshRemoveVertEdgeFace(tnsMeshObject* mo, tnsMVert* mv){
  537. if(!mv) return; tnsMEdge* me;
  538. while(me=lstPopPointerLeave(&mv->elink)){ tnsMMeshRemoveEdgeFace(mo,me); }
  539. lstRemoveItem(&mo->mv,mv); memLeave(mv); mo->totmv--;
  540. tnsMMeshClearFirstLastSelection(mo);
  541. }
  542. void tnsMMeshRefreshIndex(tnsMeshObject* mo){
  543. int i;
  544. i=0; for(tnsMVert* mv=mo->mv.pFirst;mv;mv=mv->Item.pNext){ mv->i=i; i++; } mo->totmv=i;
  545. i=0; for(tnsMEdge* me=mo->me.pFirst;me;me=me->Item.pNext){ me->i=i; i++; } mo->totme=i;
  546. i=0; for(tnsMFace* mf=mo->mf.pFirst;mf;mf=mf->Item.pNext){ mf->i=i; i++; } mo->totmf=i;
  547. }
  548. void tnsClearMesh(tnsMeshObject* mo){
  549. arrFree(&mo->v, &mo->maxv); mo->totv=0;
  550. arrFree(&mo->e, &mo->maxe); mo->tote=0;
  551. if(mo->f) for(int i=0;i<mo->totf;i++){ if(mo->f[i].loop) free(mo->f[i].loop); }
  552. arrFree(&mo->f, &mo->maxf); mo->totf=0;
  553. }
  554. void tnsClearMMesh(tnsMeshObject* mo){
  555. tnsMFace* mf; tnsMEdge* me; tnsMVert* mv;
  556. while(mf=lstPopItem(&mo->mf)){ while(lstPopPointerLeave(&mf->l)); memLeave(mf); }
  557. while(me=lstPopItem(&mo->me)){ memLeave(me); }
  558. while(mv=lstPopItem(&mo->mv)){ while(lstPopPointerLeave(&mv->elink)); memLeave(mv); }
  559. mo->totmv=mo->totme=mo->totmf=0;
  560. }
  561. void tnsMMeshFromMesh(tnsMeshObject* mo){
  562. tnsClearMMesh(mo);
  563. tnsEdgeHash* eh=tnsCreateEdgeHash(mo->totv); //mo->totmv=mo->totv; mo->totme=mo->tote; mo->totmf=mo->totf;
  564. for(int i=0;i<mo->totf;i++){
  565. tnsFace* f=&mo->f[i];
  566. for(int j=0;j<f->looplen-1;j++){ tnsEdgeHashAddVertPair(eh, f->loop[j], f->loop[j+1]); }
  567. tnsEdgeHashAddVertPair(eh, f->loop[f->looplen-1], f->loop[0]);
  568. }
  569. for(int i=0;i<eh->max;i++){
  570. tnsEdgeHashVert* ehv=&eh->vl[i];
  571. for(int j=0;j<ehv->next;j++){ tnsMEdge*me=tnsMMeshNewEdge(mo); ehv->e[j].me=me; }
  572. }
  573. for(int i=0;i<mo->totv;i++){ tnsVert*v=&mo->v[i]; tnsMVert*mv=tnsMMeshNewVert(mo); eh->vl[i].mv=mv;
  574. tnsVectorSet3v(mv->p,mo->v[i].p); mv->flags=mo->v[i].flags; tnsVectorSet3v(mv->n,v->n); }
  575. for(int i=0;i<mo->totf;i++){
  576. tnsFace* f=&mo->f[i]; tnsMFace* mf=tnsMMeshNewFace(mo); mf->flags=f->flags;
  577. for(int j=0;j<f->looplen;j++){ int v2=j+1; if(j==f->looplen-1) v2=0;
  578. tnsEdgeHashEdge* ehe=tnsEdgeHashGetEdge(eh,f->loop[j],f->loop[v2]);
  579. tnsMEdge* me=ehe->me; tnsMMeshEdgeAssignVerts(me,eh->vl[f->loop[j]].mv,eh->vl[f->loop[v2]].mv);
  580. tnsMMeshFaceAddEdge(mf,me); tnsVectorSet3v(mf->n,f->n);
  581. }
  582. }
  583. tnsMMeshEnsureSelectionFromVerts(mo);
  584. tnsDestroyEdgeHash(eh);
  585. }
  586. void tnsMeshFromMMesh(tnsMeshObject* mo){
  587. tnsClearMesh(mo);
  588. tnsInitMesh(mo, mo->totmv, 0, mo->totmf); int i=0;
  589. /* Vertex index should already correct. */
  590. //for(tnsMVert* mv=mo->mv.pFirst;mv;mv=mv->Item.pNext){ mv->i=i; i++; }
  591. for(tnsMVert* mv=mo->mv.pFirst;mv;mv=mv->Item.pNext){ tnsVert* v=tnsFillVert(mo, LA_COLOR3(mv->p)); tnsFillVertNormal(v,mv->n); v->flags=mv->flags; }
  592. for(tnsMFace* mf=mo->mf.pFirst;mf;mf=mf->Item.pNext){ tnsFace* f=tnsFillFace(mo, mf->looplen, -1); f->flags=mf->flags;
  593. int j=0; for(laListItemPointer* lip=mf->l.pFirst;lip;lip=lip->pNext){
  594. laListItemPointer* next=lip->pNext; if(!next) next=mf->l.pFirst; tnsMEdge* me0=lip->p, *me1=next->p;
  595. tnsFillFaceLoop(f, j, tnsMMeshEdgeStartingVert(me0,me1)->i); j++;
  596. }
  597. tnsFillFaceNormal(f,mf->n);
  598. }
  599. mo->totv=mo->totmv; mo->totf=mo->totmf;
  600. mo->maxv=mo->totv; mo->maxe=mo->tote; mo->maxf=mo->totf;
  601. if((!mo->maxv) && mo->v) arrFree(&mo->v, &mo->maxv);
  602. if((!mo->maxe) && mo->e) arrFree(&mo->e, &mo->maxe);
  603. if((!mo->maxf) && mo->f) arrFree(&mo->f, &mo->maxf);
  604. tnsClearMMesh(mo);
  605. }
  606. void tnsMeshEnterEditMode(tnsMeshObject* mo){
  607. if(mo->Mode==TNS_MESH_EDIT_MODE) return;
  608. tnsMMeshFromMesh(mo);
  609. mo->Mode = TNS_MESH_EDIT_MODE;
  610. tnsInvalidateMeshBatch(mo);
  611. tnsInvalidateEvaluation(mo);
  612. }
  613. void tnsMeshLeaveEditMode(tnsMeshObject* mo){
  614. if(mo->Mode==TNS_MESH_OBJECT_MODE) return;
  615. tnsMeshFromMMesh(mo);
  616. mo->Mode = TNS_MESH_OBJECT_MODE;
  617. tnsInvalidateMeshBatch(mo);
  618. tnsInvalidateEvaluation(mo);
  619. }
  620. void tnsMMeshClearFirstLastSelection(tnsMeshObject* mo){
  621. mo->FirstSelectE=mo->FirstSelectV=mo->LastSelectE=mo->LastSelectV=0;
  622. }
  623. int tnsMMeshAnySelected(tnsMeshObject* mo){
  624. for(tnsMVert* mv=mo->mv.pFirst;mv;mv=mv->Item.pNext){ if(mv->flags&TNS_MESH_FLAG_SELECTED) return 1; }
  625. for(tnsMEdge* me=mo->me.pFirst;me;me=me->Item.pNext){ if(me->flags&TNS_MESH_FLAG_SELECTED) return 1; }
  626. for(tnsMFace* mf=mo->mf.pFirst;mf;mf=mf->Item.pNext){ if(mf->flags&TNS_MESH_FLAG_SELECTED) return 1; } return 0;
  627. }
  628. void tnsMMeshClearExtraFlags(tnsMeshObject* mo){
  629. for(tnsMVert* mv=mo->mv.pFirst;mv;mv=mv->Item.pNext){ mv->flags&=(~TNS_MESH_FLAG_PICKED); }
  630. for(tnsMEdge* me=mo->me.pFirst;me;me=me->Item.pNext){ me->flags&=(~TNS_MESH_FLAG_PICKED); /*me->flags&=(~TNS_MESH_FLAG_LOOP_REVERSE);*/ }
  631. for(tnsMFace* mf=mo->mf.pFirst;mf;mf=mf->Item.pNext){ mf->flags&=(~TNS_MESH_FLAG_PICKED); }
  632. }
  633. void tnsMMeshDeselectAll(tnsMeshObject* mo){
  634. for(tnsMVert* mv=mo->mv.pFirst;mv;mv=mv->Item.pNext){ mv->flags&=(~TNS_MESH_FLAG_SELECTED); }
  635. for(tnsMEdge* me=mo->me.pFirst;me;me=me->Item.pNext){ me->flags&=(~TNS_MESH_FLAG_SELECTED); }
  636. for(tnsMFace* mf=mo->mf.pFirst;mf;mf=mf->Item.pNext){ mf->flags&=(~TNS_MESH_FLAG_SELECTED); }
  637. tnsMMeshClearFirstLastSelection(mo);
  638. }
  639. void tnsMMeshSelectAll(tnsMeshObject* mo){
  640. for(tnsMVert* mv=mo->mv.pFirst;mv;mv=mv->Item.pNext){ mv->flags|=TNS_MESH_FLAG_SELECTED; }
  641. for(tnsMEdge* me=mo->me.pFirst;me;me=me->Item.pNext){ me->flags|=TNS_MESH_FLAG_SELECTED; }
  642. for(tnsMFace* mf=mo->mf.pFirst;mf;mf=mf->Item.pNext){ mf->flags|=TNS_MESH_FLAG_SELECTED; }
  643. }
  644. void tnsMMeshSelectVert(tnsMeshObject* mo, tnsMVert* mv, int select, int toggle){
  645. if(!mo) return;
  646. if(toggle) tnsMMeshSelectVert(mo,mv,(mv->flags&TNS_MESH_FLAG_SELECTED?0:1),0);
  647. elif(select) mv->flags|=TNS_MESH_FLAG_SELECTED; else mv->flags&=(~TNS_MESH_FLAG_SELECTED);
  648. if(!mo->FirstSelectV) mo->FirstSelectV=mv; mo->LastSelectV=mv;
  649. }
  650. void tnsMMeshSelectEdge(tnsMeshObject* mo, tnsMEdge* me, int select, int toggle){
  651. if(!mo) return;
  652. if(toggle) tnsMMeshSelectEdge(mo,me,(me->flags&TNS_MESH_FLAG_SELECTED?0:1),0);
  653. elif(select) me->flags|=TNS_MESH_FLAG_SELECTED; else me->flags&=(~TNS_MESH_FLAG_SELECTED);
  654. if(!mo->FirstSelectE) mo->FirstSelectE=me; mo->LastSelectE=me;
  655. }
  656. void tnsMMeshEnsureSelectionFromVerts(tnsMeshObject* mo){
  657. for(tnsMEdge* me=mo->me.pFirst;me;me=me->Item.pNext){ me->flags&=(~TNS_MESH_FLAG_SELECTED);
  658. if(me->vl->flags&me->vr->flags&TNS_MESH_FLAG_SELECTED) me->flags|=TNS_MESH_FLAG_SELECTED;
  659. }
  660. for(tnsMFace* mf=mo->mf.pFirst;mf;mf=mf->Item.pNext){ int sel=1; mf->flags&=(~TNS_MESH_FLAG_SELECTED);
  661. for(laListItemPointer* lip=mf->l.pFirst;lip;lip=lip->pNext){ tnsMEdge*me=lip->p; if(!(me->flags&TNS_MESH_FLAG_SELECTED)){ sel=0; break; } }
  662. if(sel){ mf->flags|=TNS_MESH_FLAG_SELECTED; }
  663. }
  664. }
  665. void tnsMMeshEnsureSelectionFromEdges(tnsMeshObject* mo){
  666. for(tnsMVert* mv=mo->mv.pFirst;mv;mv=mv->Item.pNext){ mv->flags&=(~TNS_MESH_FLAG_SELECTED);
  667. for(laListItemPointer* lip=mv->elink.pFirst;lip;lip=lip->pNext){ tnsMEdge*me=lip->p; if(me->flags&TNS_MESH_FLAG_SELECTED){ mv->flags|=TNS_MESH_FLAG_SELECTED; break; } }
  668. }
  669. for(tnsMFace* mf=mo->mf.pFirst;mf;mf=mf->Item.pNext){ int sel=1; mf->flags&=(~TNS_MESH_FLAG_SELECTED);
  670. for(laListItemPointer* lip=mf->l.pFirst;lip;lip=lip->pNext){ tnsMEdge*me=lip->p; if(!(me->flags&TNS_MESH_FLAG_SELECTED)){ sel=0; break; } }
  671. if(sel){ mf->flags|=TNS_MESH_FLAG_SELECTED; }
  672. }
  673. }
  674. void tnsMMeshEnsureSelection(tnsMeshObject* mo, int SelectMode){
  675. if(SelectMode==LA_CANVAS_SELECT_MODE_VERTS){ tnsMMeshEnsureSelectionFromVerts(mo); }
  676. elif(SelectMode==LA_CANVAS_SELECT_MODE_EDGES){ tnsMMeshEnsureSelectionFromEdges(mo); }
  677. }
  678. tnsMEdge* tnsMMeshGetRingEdge(tnsMEdge* me, int from_right){
  679. tnsMEdge* candidate=0; tnsMVert* VL=from_right?me->vr:me->vl, *VR=from_right?me->vl:me->vr;
  680. for(laListItemPointer* lip=VL->elink.pFirst;lip;lip=lip->pNext){
  681. tnsMEdge* te=lip->p; if(te==me || (te->flags&TNS_MESH_FLAG_PICKED)){ continue; }
  682. if((!te->fl) || (!te->fr)){ candidate=te; break; }
  683. }
  684. if(candidate){ candidate->flags|=TNS_MESH_FLAG_PICKED; return candidate; }
  685. if(lstCountElements(&VL->elink)!=4) return 0;
  686. tnsMFace* f1=0,*f2=0;
  687. for(laListItemPointer* lip=VL->elink.pFirst;lip;lip=lip->pNext){
  688. tnsMEdge* te=lip->p; if(te==me || (te->flags&TNS_MESH_FLAG_PICKED)){ continue; }
  689. if(tnsMMeshFaceHasVert(te->fl,VR) || tnsMMeshFaceHasVert(te->fr,VR)){ continue; }
  690. else{ te->flags|=TNS_MESH_FLAG_PICKED; return te; }
  691. }
  692. return 0;
  693. }
  694. void tnsMMeshExpandRingList(tnsMeshObject* mo, tnsMEdge* me, laListHandle* lst){
  695. tnsMEdge* el,*er;
  696. int flc=0,frc=0; if(me->fl) flc=me->fl->looplen; if(me->fr) frc=me->fr->looplen;
  697. if(TNS_MAX2(flc,frc)>4){
  698. if(flc>frc){ for(laListItemPointer* lip=me->fl->l.pFirst;lip;lip=lip->pNext){ lstAppendPointer(lst,lip->p); } return; }
  699. elif(flc<frc){ for(laListItemPointer* lip=me->fr->l.pFirst;lip;lip=lip->pNext){ lstAppendPointer(lst,lip->p); } return; }
  700. }
  701. if(el=tnsMMeshGetRingEdge(me,0)){ lstAppendPointer(lst,el); tnsMMeshExpandRingList(mo,el,lst); }
  702. if(er=tnsMMeshGetRingEdge(me,1)){ lstAppendPointer(lst,er); tnsMMeshExpandRingList(mo,er,lst); }
  703. }
  704. tnsMEdge* tnsMMeshGetBandEdge(tnsMEdge* me, int from_right){
  705. tnsMFace* FL=from_right?me->fl:me->fr; if(!FL) return 0;
  706. if(FL->looplen!=4){ return 0;}
  707. for(laListItemPointer* lip=FL->l.pFirst;lip;lip=lip->pNext){
  708. tnsMEdge* te=lip->p; if((!(te->flags&TNS_MESH_FLAG_PICKED)) && (!tnsMMeshEdgeShareVert(te,me))){
  709. te->flags|=TNS_MESH_FLAG_PICKED; return te;
  710. }
  711. }
  712. return 0;
  713. }
  714. void tnsMMeshExpandBandList(tnsMeshObject* mo, tnsMEdge* me, laListHandle* lst){
  715. tnsMEdge* el,*er;
  716. if(el=tnsMMeshGetBandEdge(me,0)){ lstAppendPointer(lst,el); tnsMMeshExpandBandList(mo,el,lst); }
  717. if(er=tnsMMeshGetBandEdge(me,1)){ lstAppendPointer(lst,er); tnsMMeshExpandBandList(mo,er,lst); }
  718. }
  719. int tnsMMeshSelectRingBandFrom(tnsMeshObject* mo, tnsMEdge* me, int ring_band, int select, int toggle){
  720. if(!ring_band) return 0;
  721. tnsMMeshClearExtraFlags(mo);
  722. laListHandle lst={0}; lstAppendPointer(&lst,me); me->flags|=TNS_MESH_FLAG_PICKED;
  723. if(ring_band==1) tnsMMeshExpandRingList(mo,me,&lst);
  724. elif(ring_band==2) tnsMMeshExpandBandList(mo,me,&lst);
  725. if(lst.pFirst==lst.pLast){ while(lstPopPointer(&lst)); return 0; }
  726. int has_idle=0;
  727. if(toggle){
  728. for(laListItemPointer* lip=lst.pFirst;lip;lip=lip->pNext){
  729. tnsMEdge* te=lip->p; if(te!=me && (!(te->flags&TNS_MESH_FLAG_SELECTED))) has_idle=1;
  730. if(has_idle){ break; }
  731. }
  732. if(has_idle){ select=1; }else{ select=0; }
  733. }
  734. for(laListItemPointer* lip=lst.pFirst;lip;lip=lip->pNext){
  735. tnsMEdge* te=lip->p;
  736. if(select){ te->flags|=TNS_MESH_FLAG_SELECTED; te->vl->flags|=TNS_MESH_FLAG_SELECTED; te->vr->flags|=TNS_MESH_FLAG_SELECTED; }
  737. else{ te->flags&=(~TNS_MESH_FLAG_SELECTED); te->vl->flags&=(~TNS_MESH_FLAG_SELECTED); te->vr->flags&=(~TNS_MESH_FLAG_SELECTED); }
  738. }
  739. while(lstPopPointer(&lst)); return 1;
  740. }
  741. void tnsMMeshReduceFaceEdge(tnsMeshObject* mo, tnsMFace* mf, tnsMEdge* me){
  742. lstRemovePointerLeave(&mf->l,me); mf->looplen--;
  743. }
  744. void tnsMMeshFaceReplaceEdgeWith(tnsMFace* mf, tnsMEdge* to_be_replaced, tnsMEdge* as){
  745. if(!mf) return; for(laListItemPointer* lip=mf->l.pFirst;lip;lip=lip->pNext){
  746. if(lip->p==to_be_replaced){ lip->p=as; return; }
  747. }
  748. }
  749. void tnsMMeshReduceZippedFace(tnsMeshObject* mo, tnsMFace* mf){
  750. if(mf->looplen>2) return; if(mf->looplen<2){ printf("mf->looplen < 2 ?\n");return; }
  751. tnsMEdge* me1=((laListItemPointer*)mf->l.pFirst)->p,*me2=((laListItemPointer*)mf->l.pLast)->p;
  752. tnsMVert* vl=me1->vl; tnsMVert*vr=me1->vr;
  753. lstRemovePointerLeave(&vl->elink,me2); lstRemovePointerLeave(&vr->elink,me2);
  754. tnsMMeshFaceReplaceEdgeWith(me1->fl,me2,me1); tnsMMeshFaceReplaceEdgeWith(me1->fr,me2,me1);
  755. tnsMMeshFaceReplaceEdgeWith(me2->fl,me2,me1); tnsMMeshFaceReplaceEdgeWith(me2->fr,me2,me1);
  756. if(me1->fl==mf){ me1->fl=((me2->fl==mf)?me2->fr:me2->fl); }elif(me1->fr==mf){ me1->fr=((me2->fl==mf)?me2->fr:me2->fl); }
  757. lstRemoveItem(&mo->me,me2); mo->totme--; memLeave(me2);
  758. lstRemoveItem(&mo->mf,mf); mo->totmf--; memLeave(mf);
  759. tnsMMeshClearFirstLastSelection(mo);
  760. }
  761. int tnsMMeshVertsCanMerge(tnsMeshObject* mo, tnsMVert* into, tnsMVert* mv){
  762. for(laListItemPointer* lip=into->elink.pFirst;lip;lip=lip->pNext){ tnsMEdge* me=lip->p;
  763. for(laListItemPointer* lip2=mv->elink.pFirst;lip2;lip2=lip2->pNext){ tnsMEdge* me2=lip2->p; if(me==me2) continue;
  764. tnsMVert* mvs=tnsMMeshEdgeShareVert(me,me2); if((!mvs)||mvs==mv||mvs==into) continue; int count=0;
  765. if(me->fl) count++; if(me->fr) count++; if(me2->fl) count++; if(me2->fr) count++;
  766. tnsMFace* sf=tnsMMeshEdgeShareFace(me,me2); if(sf){count--;}
  767. if ((sf==me->fl && me->fr && (me->fr==me2->fl||me->fr==me2->fr))||
  768. (sf==me->fr && me->fl && (me->fl==me2->fl||me->fl==me2->fr))){ return 0; }
  769. if((sf && count>3) || (!sf && count>2)){ return 0; }
  770. }
  771. }
  772. return 1;
  773. }
  774. int tnsMMeshMergeVerts(tnsMeshObject* mo, tnsMVert* into, tnsMVert* mv){
  775. if(!tnsMMeshVertsCanMerge(mo,into,mv)) return 0;
  776. tnsMEdge* me=tnsMMeshMakeEdge(mo,into,mv);
  777. if(me->fl){ tnsMMeshReduceFaceEdge(mo,me->fl,me); }
  778. if(me->fr){ tnsMMeshReduceFaceEdge(mo,me->fr,me); }
  779. tnsMEdge* me2; while(me2=lstPopPointerLeave(&mv->elink)){
  780. if(me2==me) continue; lstAppendPointer(&into->elink,me2);
  781. if(me2->vl==mv){ me2->vl=into; }elif(me2->vr==mv){ me2->vr=into; }
  782. }
  783. if(me->fl){ tnsMMeshReduceZippedFace(mo,me->fl); }
  784. if(me->fr){ tnsMMeshReduceZippedFace(mo,me->fr); }
  785. lstRemovePointerLeave(&into->elink,me);
  786. lstRemoveItem(&mo->mv,mv); memLeave(mv); mo->totmv--;
  787. lstRemoveItem(&mo->me,me); memLeave(me); mo->totme--;
  788. tnsMMeshClearFirstLastSelection(mo);
  789. //tnsPrintMeshTopology(mo);
  790. return 1;
  791. }
  792. tnsMeshObject *tnsCreateMeshEmpty(tnsObject *under, char *Name, real AtX, real AtY, real AtZ){
  793. tnsMeshObject *mo = memAcquireHyper(sizeof(tnsMeshObject));
  794. tnsInitObjectBase(&mo->Base, under, Name, TNS_OBJECT_MESH, AtX, AtY, AtZ, 0, 0, 0, 1.0f, TNS_ROTATION_XYZ_EULER, 1.0f);
  795. return mo;
  796. }
  797. tnsMeshObject *tnsCreateMeshPlane(tnsObject *under, char *Name, real AtX, real AtY, real AtZ, real size){
  798. tnsMeshObject *mo=tnsCreateMeshEmpty(under, Name, AtX, AtY, AtZ);
  799. tnsInitMeshPlane(mo, size);
  800. tnsInvalidateMeshBatch(mo);
  801. return mo;
  802. }