*/}}

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