Brecht Van Lommel
26b8892c9c
used for clipping were being stored in the mesh, but modifiers can result in two objects with the same mesh having a different bounding box. Solution is to store bounding box in the object.
1233 lines
26 KiB
C
1233 lines
26 KiB
C
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/* mesh.c
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*
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*
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*
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* $Id$
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*
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* ***** BEGIN GPL/BL DUAL LICENSE BLOCK *****
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version. The Blender
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* Foundation also sells licenses for use in proprietary software under
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* the Blender License. See http://www.blender.org/BL/ for information
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* about this.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*
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* The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
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* All rights reserved.
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*
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* The Original Code is: all of this file.
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*
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* Contributor(s): none yet.
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*
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* ***** END GPL/BL DUAL LICENSE BLOCK *****
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*/
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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#include <stdlib.h>
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#include <string.h>
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#include <stdio.h>
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#include <math.h>
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#include "MEM_guardedalloc.h"
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#include "DNA_ID.h"
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#include "DNA_curve_types.h"
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#include "DNA_material_types.h"
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#include "DNA_object_types.h"
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#include "DNA_image_types.h"
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#include "DNA_key_types.h"
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#include "DNA_mesh_types.h"
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#include "DNA_meshdata_types.h"
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#include "DNA_ipo_types.h"
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#include "BDR_sculptmode.h"
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#include "BKE_customdata.h"
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#include "BKE_depsgraph.h"
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#include "BKE_main.h"
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#include "BKE_DerivedMesh.h"
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#include "BKE_global.h"
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#include "BKE_mesh.h"
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#include "BKE_subsurf.h"
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#include "BKE_displist.h"
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#include "BKE_library.h"
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#include "BKE_material.h"
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#include "BKE_key.h"
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/* these 2 are only used by conversion functions */
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#include "BKE_curve.h"
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/* -- */
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#include "BKE_object.h"
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#include "BKE_utildefines.h"
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#include "BKE_bad_level_calls.h"
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#ifdef WITH_VERSE
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#include "BKE_verse.h"
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#endif
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#include "BLI_blenlib.h"
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#include "BLI_editVert.h"
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#include "BLI_arithb.h"
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#include "multires.h"
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int update_realtime_texture(MTFace *tface, double time)
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{
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Image *ima;
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int inc = 0;
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float diff;
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int newframe;
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ima = tface->tpage;
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if (!ima)
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return 0;
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if (ima->lastupdate<0)
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ima->lastupdate = 0;
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if (ima->lastupdate>time)
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ima->lastupdate=(float)time;
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if(ima->tpageflag & IMA_TWINANIM) {
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if(ima->twend >= ima->xrep*ima->yrep) ima->twend= ima->xrep*ima->yrep-1;
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/* check: is the bindcode not in the array? Then free. (still to do) */
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diff = (float)(time-ima->lastupdate);
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inc = (int)(diff*(float)ima->animspeed);
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ima->lastupdate+=((float)inc/(float)ima->animspeed);
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newframe = ima->lastframe+inc;
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if (newframe > (int)ima->twend)
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newframe = (int)ima->twsta-1 + (newframe-ima->twend)%(ima->twend-ima->twsta);
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ima->lastframe = newframe;
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}
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return inc;
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}
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void mesh_update_customdata_pointers(Mesh *me)
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{
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me->mvert = CustomData_get_layer(&me->vdata, CD_MVERT);
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me->dvert = CustomData_get_layer(&me->vdata, CD_MDEFORMVERT);
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me->msticky = CustomData_get_layer(&me->vdata, CD_MSTICKY);
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me->medge = CustomData_get_layer(&me->edata, CD_MEDGE);
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me->mface = CustomData_get_layer(&me->fdata, CD_MFACE);
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me->mcol = CustomData_get_layer(&me->fdata, CD_MCOL);
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me->mtface = CustomData_get_layer(&me->fdata, CD_MTFACE);
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}
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/* Note: unlinking is called when me->id.us is 0, question remains how
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* much unlinking of Library data in Mesh should be done... probably
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* we need a more generic method, like the expand() functions in
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* readfile.c */
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void unlink_mesh(Mesh *me)
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{
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int a;
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if(me==0) return;
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for(a=0; a<me->totcol; a++) {
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if(me->mat[a]) me->mat[a]->id.us--;
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me->mat[a]= 0;
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}
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if(me->key) {
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me->key->id.us--;
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if (me->key->id.us == 0 && me->key->ipo )
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me->key->ipo->id.us--;
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}
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me->key= 0;
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if(me->texcomesh) me->texcomesh= 0;
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}
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/* do not free mesh itself */
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void free_mesh(Mesh *me)
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{
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unlink_mesh(me);
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if(me->pv) {
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if(me->pv->vert_map) MEM_freeN(me->pv->vert_map);
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if(me->pv->edge_map) MEM_freeN(me->pv->edge_map);
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if(me->pv->old_faces) MEM_freeN(me->pv->old_faces);
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if(me->pv->old_edges) MEM_freeN(me->pv->old_edges);
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me->totvert= me->pv->totvert;
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me->totedge= me->pv->totedge;
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me->totface= me->pv->totface;
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MEM_freeN(me->pv);
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}
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CustomData_free(&me->vdata, me->totvert);
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CustomData_free(&me->edata, me->totedge);
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CustomData_free(&me->fdata, me->totface);
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if(me->mat) MEM_freeN(me->mat);
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if(me->bb) MEM_freeN(me->bb);
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if(me->mselect) MEM_freeN(me->mselect);
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if(me->mr) multires_free(me->mr);
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}
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void copy_dverts(MDeformVert *dst, MDeformVert *src, int copycount)
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{
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/* Assumes dst is already set up */
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int i;
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if (!src || !dst)
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return;
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memcpy (dst, src, copycount * sizeof(MDeformVert));
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for (i=0; i<copycount; i++){
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if (src[i].dw){
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dst[i].dw = MEM_callocN (sizeof(MDeformWeight)*src[i].totweight, "copy_deformWeight");
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memcpy (dst[i].dw, src[i].dw, sizeof (MDeformWeight)*src[i].totweight);
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}
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}
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}
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void free_dverts(MDeformVert *dvert, int totvert)
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{
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/* Instead of freeing the verts directly,
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call this function to delete any special
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vert data */
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int i;
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if (!dvert)
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return;
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/* Free any special data from the verts */
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for (i=0; i<totvert; i++){
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if (dvert[i].dw) MEM_freeN (dvert[i].dw);
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}
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MEM_freeN (dvert);
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}
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Mesh *add_mesh(char *name)
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{
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Mesh *me;
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me= alloc_libblock(&G.main->mesh, ID_ME, name);
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me->size[0]= me->size[1]= me->size[2]= 1.0;
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me->smoothresh= 30;
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me->texflag= AUTOSPACE;
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me->flag= ME_TWOSIDED;
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me->bb= unit_boundbox();
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#ifdef WITH_VERSE
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me->vnode = NULL;
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#endif
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return me;
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}
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Mesh *copy_mesh(Mesh *me)
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{
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Mesh *men;
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MTFace *tface;
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int a, i;
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men= copy_libblock(me);
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men->mat= MEM_dupallocN(me->mat);
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for(a=0; a<men->totcol; a++) {
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id_us_plus((ID *)men->mat[a]);
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}
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id_us_plus((ID *)men->texcomesh);
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CustomData_copy(&me->vdata, &men->vdata, CD_MASK_MESH, CD_DUPLICATE, men->totvert);
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CustomData_copy(&me->edata, &men->edata, CD_MASK_MESH, CD_DUPLICATE, men->totedge);
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CustomData_copy(&me->fdata, &men->fdata, CD_MASK_MESH, CD_DUPLICATE, men->totface);
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mesh_update_customdata_pointers(men);
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/* ensure indirect linked data becomes lib-extern */
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for(i=0; i<me->fdata.totlayer; i++) {
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if(me->fdata.layers[i].type == CD_MTFACE) {
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tface= (MTFace*)me->fdata.layers[i].data;
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for(a=0; a<me->totface; a++, tface++)
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if(tface->tpage)
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id_lib_extern((ID*)tface->tpage);
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}
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}
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if(me->mr)
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men->mr= multires_copy(me->mr);
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men->mselect= NULL;
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men->bb= MEM_dupallocN(men->bb);
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men->key= copy_key(me->key);
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if(men->key) men->key->from= (ID *)men;
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#ifdef WITH_VERSE
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men->vnode = NULL;
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#endif
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return men;
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}
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void make_local_tface(Mesh *me)
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{
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MTFace *tface;
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Image *ima;
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int a, i;
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for(i=0; i<me->fdata.totlayer; i++) {
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if(me->fdata.layers[i].type == CD_MTFACE) {
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tface= (MTFace*)me->fdata.layers[i].data;
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for(a=0; a<me->totface; a++, tface++) {
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/* special case: ima always local immediately */
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if(tface->tpage) {
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ima= tface->tpage;
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if(ima->id.lib) {
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ima->id.lib= 0;
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ima->id.flag= LIB_LOCAL;
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new_id(0, (ID *)ima, 0);
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}
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}
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}
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}
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}
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}
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void make_local_mesh(Mesh *me)
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{
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Object *ob;
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Mesh *men;
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int local=0, lib=0;
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/* - only lib users: do nothing
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* - only local users: set flag
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* - mixed: make copy
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*/
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if(me->id.lib==0) return;
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if(me->id.us==1) {
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me->id.lib= 0;
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me->id.flag= LIB_LOCAL;
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new_id(0, (ID *)me, 0);
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if(me->mtface) make_local_tface(me);
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return;
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}
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ob= G.main->object.first;
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while(ob) {
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if( me==get_mesh(ob) ) {
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if(ob->id.lib) lib= 1;
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else local= 1;
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}
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ob= ob->id.next;
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}
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if(local && lib==0) {
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me->id.lib= 0;
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me->id.flag= LIB_LOCAL;
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new_id(0, (ID *)me, 0);
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if(me->mtface) make_local_tface(me);
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}
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else if(local && lib) {
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men= copy_mesh(me);
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men->id.us= 0;
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ob= G.main->object.first;
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while(ob) {
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if( me==get_mesh(ob) ) {
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if(ob->id.lib==0) {
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set_mesh(ob, men);
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}
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}
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ob= ob->id.next;
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}
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}
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}
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void boundbox_mesh(Mesh *me, float *loc, float *size)
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{
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MVert *mvert;
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BoundBox *bb;
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float min[3], max[3];
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float mloc[3], msize[3];
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int a;
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if(me->bb==0) me->bb= MEM_callocN(sizeof(BoundBox), "boundbox");
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bb= me->bb;
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INIT_MINMAX(min, max);
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if (!loc) loc= mloc;
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if (!size) size= msize;
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mvert= me->mvert;
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for(a=0; a<me->totvert; a++, mvert++) {
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DO_MINMAX(mvert->co, min, max);
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}
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if(!me->totvert) {
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min[0] = min[1] = min[2] = -1.0f;
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max[0] = max[1] = max[2] = 1.0f;
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}
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loc[0]= (min[0]+max[0])/2.0f;
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loc[1]= (min[1]+max[1])/2.0f;
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loc[2]= (min[2]+max[2])/2.0f;
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size[0]= (max[0]-min[0])/2.0f;
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size[1]= (max[1]-min[1])/2.0f;
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size[2]= (max[2]-min[2])/2.0f;
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boundbox_set_from_min_max(bb, min, max);
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}
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void tex_space_mesh(Mesh *me)
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{
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KeyBlock *kb;
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float *fp, loc[3], size[3], min[3], max[3];
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int a;
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boundbox_mesh(me, loc, size);
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if(me->texflag & AUTOSPACE) {
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if(me->key) {
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kb= me->key->refkey;
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if (kb) {
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INIT_MINMAX(min, max);
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fp= kb->data;
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for(a=0; a<kb->totelem; a++, fp+=3) {
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DO_MINMAX(fp, min, max);
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}
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if(kb->totelem) {
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loc[0]= (min[0]+max[0])/2.0f; loc[1]= (min[1]+max[1])/2.0f; loc[2]= (min[2]+max[2])/2.0f;
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size[0]= (max[0]-min[0])/2.0f; size[1]= (max[1]-min[1])/2.0f; size[2]= (max[2]-min[2])/2.0f;
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}
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else {
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loc[0]= loc[1]= loc[2]= 0.0;
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size[0]= size[1]= size[2]= 0.0;
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}
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}
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}
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for (a=0; a<3; a++) {
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if(size[a]==0.0) size[a]= 1.0;
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else if(size[a]>0.0 && size[a]<0.00001) size[a]= 0.00001;
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else if(size[a]<0.0 && size[a]> -0.00001) size[a]= -0.00001;
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}
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VECCOPY(me->loc, loc);
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VECCOPY(me->size, size);
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me->rot[0]= me->rot[1]= me->rot[2]= 0.0;
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}
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}
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BoundBox *mesh_get_bb(Object *ob)
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{
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Mesh *me= ob->data;
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if(ob->bb)
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return ob->bb;
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if (!me->bb)
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tex_space_mesh(me);
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return me->bb;
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}
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void mesh_get_texspace(Mesh *me, float *loc_r, float *rot_r, float *size_r)
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{
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if (!me->bb) {
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tex_space_mesh(me);
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}
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if (loc_r) VECCOPY(loc_r, me->loc);
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if (rot_r) VECCOPY(rot_r, me->rot);
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if (size_r) VECCOPY(size_r, me->size);
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}
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float *get_mesh_orco_verts(Object *ob)
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{
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Mesh *me = ob->data;
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int a, totvert;
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float (*vcos)[3] = NULL;
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/* Get appropriate vertex coordinates */
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if(me->key && me->texcomesh==0 && me->key->refkey) {
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vcos= mesh_getRefKeyCos(me, &totvert);
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}
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else {
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MultiresLevel *lvl = NULL;
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MVert *mvert = NULL;
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if(me->mr) {
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lvl = multires_level_n(me->mr, me->mr->pinlvl);
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vcos = MEM_callocN(sizeof(*vcos)*lvl->totvert, "orco mr mesh");
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mvert = me->mr->verts;
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totvert = lvl->totvert;
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}
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else {
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Mesh *tme = me->texcomesh?me->texcomesh:me;
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vcos = MEM_callocN(sizeof(*vcos)*me->totvert, "orco mesh");
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mvert = tme->mvert;
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totvert = MIN2(tme->totvert, me->totvert);
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}
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for(a=0; a<totvert; a++, mvert++) {
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vcos[a][0]= mvert->co[0];
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vcos[a][1]= mvert->co[1];
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vcos[a][2]= mvert->co[2];
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}
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}
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return (float*)vcos;
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}
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void transform_mesh_orco_verts(Mesh *me, float (*orco)[3], int totvert)
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{
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float loc[3], size[3];
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int a;
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|
|
mesh_get_texspace(me->texcomesh?me->texcomesh:me, loc, NULL, size);
|
|
|
|
for(a=0; a<totvert; a++) {
|
|
float *co = orco[a];
|
|
co[0] = (co[0]-loc[0])/size[0];
|
|
co[1] = (co[1]-loc[1])/size[1];
|
|
co[2] = (co[2]-loc[2])/size[2];
|
|
}
|
|
}
|
|
|
|
/* rotates the vertices of a face in case v[2] or v[3] (vertex index) is = 0.
|
|
this is necessary to make the if(mface->v4) check for quads work */
|
|
void test_index_face(MFace *mface, CustomData *fdata, int mfindex, int nr)
|
|
{
|
|
/* first test if the face is legal */
|
|
if(mface->v3 && mface->v3==mface->v4) {
|
|
mface->v4= 0;
|
|
nr--;
|
|
}
|
|
if(mface->v2 && mface->v2==mface->v3) {
|
|
mface->v3= mface->v4;
|
|
mface->v4= 0;
|
|
nr--;
|
|
}
|
|
if(mface->v1==mface->v2) {
|
|
mface->v2= mface->v3;
|
|
mface->v3= mface->v4;
|
|
mface->v4= 0;
|
|
nr--;
|
|
}
|
|
|
|
/* prevent a zero at wrong index location */
|
|
if(nr==3) {
|
|
if(mface->v3==0) {
|
|
static int corner_indices[4] = {1, 2, 0, 3};
|
|
|
|
SWAP(int, mface->v1, mface->v2);
|
|
SWAP(int, mface->v2, mface->v3);
|
|
|
|
if(fdata)
|
|
CustomData_swap(fdata, mfindex, corner_indices);
|
|
}
|
|
}
|
|
else if(nr==4) {
|
|
if(mface->v3==0 || mface->v4==0) {
|
|
static int corner_indices[4] = {2, 3, 0, 1};
|
|
|
|
SWAP(int, mface->v1, mface->v3);
|
|
SWAP(int, mface->v2, mface->v4);
|
|
|
|
if(fdata)
|
|
CustomData_swap(fdata, mfindex, corner_indices);
|
|
}
|
|
}
|
|
}
|
|
|
|
Mesh *get_mesh(Object *ob)
|
|
{
|
|
|
|
if(ob==0) return 0;
|
|
if(ob->type==OB_MESH) return ob->data;
|
|
else return 0;
|
|
}
|
|
|
|
void set_mesh(Object *ob, Mesh *me)
|
|
{
|
|
Mesh *old=0;
|
|
|
|
if(ob==0) return;
|
|
|
|
if(ob->type==OB_MESH) {
|
|
old= ob->data;
|
|
old->id.us--;
|
|
ob->data= me;
|
|
id_us_plus((ID *)me);
|
|
}
|
|
|
|
test_object_materials((ID *)me);
|
|
}
|
|
|
|
/* ************** make edges in a Mesh, for outside of editmode */
|
|
|
|
struct edgesort {
|
|
int v1, v2;
|
|
short is_loose, is_draw;
|
|
};
|
|
|
|
/* edges have to be added with lowest index first for sorting */
|
|
static void to_edgesort(struct edgesort *ed, int v1, int v2, short is_loose, short is_draw)
|
|
{
|
|
if(v1<v2) {
|
|
ed->v1= v1; ed->v2= v2;
|
|
}
|
|
else {
|
|
ed->v1= v2; ed->v2= v1;
|
|
}
|
|
ed->is_loose= is_loose;
|
|
ed->is_draw= is_draw;
|
|
}
|
|
|
|
static int vergedgesort(const void *v1, const void *v2)
|
|
{
|
|
const struct edgesort *x1=v1, *x2=v2;
|
|
|
|
if( x1->v1 > x2->v1) return 1;
|
|
else if( x1->v1 < x2->v1) return -1;
|
|
else if( x1->v2 > x2->v2) return 1;
|
|
else if( x1->v2 < x2->v2) return -1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
void make_edges(Mesh *me, int old)
|
|
{
|
|
MFace *mface;
|
|
MEdge *medge;
|
|
struct edgesort *edsort, *ed;
|
|
int a, totedge=0, final=0;
|
|
|
|
/* we put all edges in array, sort them, and detect doubles that way */
|
|
|
|
for(a= me->totface, mface= me->mface; a>0; a--, mface++) {
|
|
if(mface->v4) totedge+=4;
|
|
else if(mface->v3) totedge+=3;
|
|
else totedge+=1;
|
|
}
|
|
|
|
if(totedge==0) {
|
|
/* flag that mesh has edges */
|
|
me->medge = MEM_callocN(0, "make mesh edges");
|
|
me->totedge = 0;
|
|
return;
|
|
}
|
|
|
|
ed= edsort= MEM_mallocN(totedge*sizeof(struct edgesort), "edgesort");
|
|
|
|
for(a= me->totface, mface= me->mface; a>0; a--, mface++) {
|
|
to_edgesort(ed++, mface->v1, mface->v2, !mface->v3, mface->edcode & ME_V1V2);
|
|
if(mface->v4) {
|
|
to_edgesort(ed++, mface->v2, mface->v3, 0, mface->edcode & ME_V2V3);
|
|
to_edgesort(ed++, mface->v3, mface->v4, 0, mface->edcode & ME_V3V4);
|
|
to_edgesort(ed++, mface->v4, mface->v1, 0, mface->edcode & ME_V4V1);
|
|
}
|
|
else if(mface->v3) {
|
|
to_edgesort(ed++, mface->v2, mface->v3, 0, mface->edcode & ME_V2V3);
|
|
to_edgesort(ed++, mface->v3, mface->v1, 0, mface->edcode & ME_V3V1);
|
|
}
|
|
}
|
|
|
|
qsort(edsort, totedge, sizeof(struct edgesort), vergedgesort);
|
|
|
|
/* count final amount */
|
|
for(a=totedge, ed=edsort; a>1; a--, ed++) {
|
|
/* edge is unique when it differs from next edge, or is last */
|
|
if(ed->v1 != (ed+1)->v1 || ed->v2 != (ed+1)->v2) final++;
|
|
}
|
|
final++;
|
|
|
|
|
|
medge= CustomData_add_layer(&me->edata, CD_MEDGE, CD_CALLOC, NULL, final);
|
|
me->medge= medge;
|
|
me->totedge= final;
|
|
|
|
for(a=totedge, ed=edsort; a>1; a--, ed++) {
|
|
/* edge is unique when it differs from next edge, or is last */
|
|
if(ed->v1 != (ed+1)->v1 || ed->v2 != (ed+1)->v2) {
|
|
medge->v1= ed->v1;
|
|
medge->v2= ed->v2;
|
|
if(old==0 || ed->is_draw) medge->flag= ME_EDGEDRAW|ME_EDGERENDER;
|
|
if(ed->is_loose) medge->flag|= ME_LOOSEEDGE;
|
|
medge++;
|
|
}
|
|
else {
|
|
/* equal edge, we merge the drawflag */
|
|
(ed+1)->is_draw |= ed->is_draw;
|
|
}
|
|
}
|
|
/* last edge */
|
|
medge->v1= ed->v1;
|
|
medge->v2= ed->v2;
|
|
medge->flag= ME_EDGEDRAW;
|
|
if(ed->is_loose) medge->flag|= ME_LOOSEEDGE;
|
|
medge->flag |= ME_EDGERENDER;
|
|
|
|
MEM_freeN(edsort);
|
|
|
|
mesh_strip_loose_faces(me);
|
|
}
|
|
|
|
void mesh_strip_loose_faces(Mesh *me)
|
|
{
|
|
int a,b;
|
|
|
|
for (a=b=0; a<me->totface; a++) {
|
|
if (me->mface[a].v3) {
|
|
if (a!=b) {
|
|
memcpy(&me->mface[b],&me->mface[a],sizeof(me->mface[b]));
|
|
CustomData_copy_data(&me->fdata, &me->fdata, a, b, 1);
|
|
CustomData_free_elem(&me->fdata, a, 1);
|
|
}
|
|
b++;
|
|
}
|
|
}
|
|
me->totface = b;
|
|
}
|
|
|
|
|
|
void mball_to_mesh(ListBase *lb, Mesh *me)
|
|
{
|
|
DispList *dl;
|
|
MVert *mvert;
|
|
MFace *mface;
|
|
float *nors, *verts;
|
|
int a, *index;
|
|
|
|
dl= lb->first;
|
|
if(dl==0) return;
|
|
|
|
if(dl->type==DL_INDEX4) {
|
|
me->flag= ME_NOPUNOFLIP;
|
|
me->totvert= dl->nr;
|
|
me->totface= dl->parts;
|
|
|
|
mvert= CustomData_add_layer(&me->vdata, CD_MVERT, CD_CALLOC, NULL, dl->nr);
|
|
mface= CustomData_add_layer(&me->fdata, CD_MFACE, CD_CALLOC, NULL, dl->parts);
|
|
me->mvert= mvert;
|
|
me->mface= mface;
|
|
|
|
a= dl->nr;
|
|
nors= dl->nors;
|
|
verts= dl->verts;
|
|
while(a--) {
|
|
VECCOPY(mvert->co, verts);
|
|
mvert->no[0]= (short int)(nors[0]*32767.0);
|
|
mvert->no[1]= (short int)(nors[1]*32767.0);
|
|
mvert->no[2]= (short int)(nors[2]*32767.0);
|
|
mvert++;
|
|
nors+= 3;
|
|
verts+= 3;
|
|
}
|
|
|
|
a= dl->parts;
|
|
index= dl->index;
|
|
while(a--) {
|
|
mface->v1= index[0];
|
|
mface->v2= index[1];
|
|
mface->v3= index[2];
|
|
mface->v4= index[3];
|
|
mface->flag= ME_SMOOTH;
|
|
|
|
if(mface->v3==mface->v4)
|
|
mface->v4= 0;
|
|
|
|
mface++;
|
|
index+= 4;
|
|
}
|
|
|
|
make_edges(me, 0); // all edges
|
|
}
|
|
}
|
|
|
|
/* this may fail replacing ob->data, be sure to check ob->type */
|
|
void nurbs_to_mesh(Object *ob)
|
|
{
|
|
Object *ob1;
|
|
DispList *dl;
|
|
Mesh *me;
|
|
Curve *cu;
|
|
MVert *mvert;
|
|
MFace *mface;
|
|
float *data;
|
|
int a, b, ofs, vertcount, startvert, totvert=0, totvlak=0;
|
|
int p1, p2, p3, p4, *index;
|
|
|
|
cu= ob->data;
|
|
|
|
/* count */
|
|
dl= cu->disp.first;
|
|
while(dl) {
|
|
if(dl->type==DL_SEGM) {
|
|
totvert+= dl->parts*dl->nr;
|
|
totvlak+= dl->parts*(dl->nr-1);
|
|
}
|
|
else if(dl->type==DL_POLY) {
|
|
/* cyclic polys are filled. except when 3D */
|
|
if(cu->flag & CU_3D) {
|
|
totvert+= dl->parts*dl->nr;
|
|
totvlak+= dl->parts*dl->nr;
|
|
}
|
|
}
|
|
else if(dl->type==DL_SURF) {
|
|
totvert+= dl->parts*dl->nr;
|
|
totvlak+= (dl->parts-1+((dl->flag & DL_CYCL_V)==2))*(dl->nr-1+(dl->flag & DL_CYCL_U));
|
|
}
|
|
else if(dl->type==DL_INDEX3) {
|
|
totvert+= dl->nr;
|
|
totvlak+= dl->parts;
|
|
}
|
|
dl= dl->next;
|
|
}
|
|
if(totvert==0) {
|
|
/* error("can't convert"); */
|
|
/* Make Sure you check ob->data is a curve */
|
|
return;
|
|
}
|
|
|
|
/* make mesh */
|
|
me= add_mesh("Mesh");
|
|
me->totvert= totvert;
|
|
me->totface= totvlak;
|
|
|
|
me->totcol= cu->totcol;
|
|
me->mat= cu->mat;
|
|
cu->mat= 0;
|
|
cu->totcol= 0;
|
|
|
|
mvert= CustomData_add_layer(&me->vdata, CD_MVERT, CD_CALLOC, NULL, me->totvert);
|
|
mface= CustomData_add_layer(&me->fdata, CD_MFACE, CD_CALLOC, NULL, me->totface);
|
|
me->mvert= mvert;
|
|
me->mface= mface;
|
|
|
|
/* verts and faces */
|
|
vertcount= 0;
|
|
|
|
dl= cu->disp.first;
|
|
while(dl) {
|
|
if(dl->type==DL_SEGM) {
|
|
startvert= vertcount;
|
|
a= dl->parts*dl->nr;
|
|
data= dl->verts;
|
|
while(a--) {
|
|
VECCOPY(mvert->co, data);
|
|
data+=3;
|
|
vertcount++;
|
|
mvert++;
|
|
}
|
|
|
|
for(a=0; a<dl->parts; a++) {
|
|
ofs= a*dl->nr;
|
|
for(b=1; b<dl->nr; b++) {
|
|
mface->v1= startvert+ofs+b-1;
|
|
mface->v2= startvert+ofs+b;
|
|
mface++;
|
|
}
|
|
}
|
|
|
|
}
|
|
else if(dl->type==DL_POLY) {
|
|
/* 3d polys are not filled */
|
|
if(cu->flag & CU_3D) {
|
|
startvert= vertcount;
|
|
a= dl->parts*dl->nr;
|
|
data= dl->verts;
|
|
while(a--) {
|
|
VECCOPY(mvert->co, data);
|
|
data+=3;
|
|
vertcount++;
|
|
mvert++;
|
|
}
|
|
|
|
for(a=0; a<dl->parts; a++) {
|
|
ofs= a*dl->nr;
|
|
for(b=0; b<dl->nr; b++) {
|
|
mface->v1= startvert+ofs+b;
|
|
if(b==dl->nr-1) mface->v2= startvert+ofs;
|
|
else mface->v2= startvert+ofs+b+1;
|
|
mface++;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
else if(dl->type==DL_INDEX3) {
|
|
startvert= vertcount;
|
|
a= dl->nr;
|
|
data= dl->verts;
|
|
while(a--) {
|
|
VECCOPY(mvert->co, data);
|
|
data+=3;
|
|
vertcount++;
|
|
mvert++;
|
|
}
|
|
|
|
a= dl->parts;
|
|
index= dl->index;
|
|
while(a--) {
|
|
mface->v1= startvert+index[0];
|
|
mface->v2= startvert+index[2];
|
|
mface->v3= startvert+index[1];
|
|
mface->v4= 0;
|
|
test_index_face(mface, NULL, 0, 3);
|
|
|
|
mface++;
|
|
index+= 3;
|
|
}
|
|
|
|
|
|
}
|
|
else if(dl->type==DL_SURF) {
|
|
startvert= vertcount;
|
|
a= dl->parts*dl->nr;
|
|
data= dl->verts;
|
|
while(a--) {
|
|
VECCOPY(mvert->co, data);
|
|
data+=3;
|
|
vertcount++;
|
|
mvert++;
|
|
}
|
|
|
|
for(a=0; a<dl->parts; a++) {
|
|
|
|
if( (dl->flag & DL_CYCL_V)==0 && a==dl->parts-1) break;
|
|
|
|
if(dl->flag & DL_CYCL_U) { /* p2 -> p1 -> */
|
|
p1= startvert+ dl->nr*a; /* p4 -> p3 -> */
|
|
p2= p1+ dl->nr-1; /* -----> next row */
|
|
p3= p1+ dl->nr;
|
|
p4= p2+ dl->nr;
|
|
b= 0;
|
|
}
|
|
else {
|
|
p2= startvert+ dl->nr*a;
|
|
p1= p2+1;
|
|
p4= p2+ dl->nr;
|
|
p3= p1+ dl->nr;
|
|
b= 1;
|
|
}
|
|
if( (dl->flag & DL_CYCL_V) && a==dl->parts-1) {
|
|
p3-= dl->parts*dl->nr;
|
|
p4-= dl->parts*dl->nr;
|
|
}
|
|
|
|
for(; b<dl->nr; b++) {
|
|
mface->v1= p1;
|
|
mface->v2= p3;
|
|
mface->v3= p4;
|
|
mface->v4= p2;
|
|
mface->mat_nr= (unsigned char)dl->col;
|
|
test_index_face(mface, NULL, 0, 4);
|
|
mface++;
|
|
|
|
p4= p3;
|
|
p3++;
|
|
p2= p1;
|
|
p1++;
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
dl= dl->next;
|
|
}
|
|
|
|
make_edges(me, 0); // all edges
|
|
mesh_calc_normals(me->mvert, me->totvert, me->mface, me->totface, NULL);
|
|
|
|
if(ob->data) {
|
|
free_libblock(&G.main->curve, ob->data);
|
|
}
|
|
ob->data= me;
|
|
ob->type= OB_MESH;
|
|
|
|
/* other users */
|
|
ob1= G.main->object.first;
|
|
while(ob1) {
|
|
if(ob1->data==cu) {
|
|
ob1->type= OB_MESH;
|
|
|
|
ob1->data= ob->data;
|
|
id_us_plus((ID *)ob->data);
|
|
}
|
|
ob1= ob1->id.next;
|
|
}
|
|
|
|
}
|
|
|
|
void mesh_delete_material_index(Mesh *me, int index) {
|
|
int i;
|
|
|
|
for (i=0; i<me->totface; i++) {
|
|
MFace *mf = &((MFace*) me->mface)[i];
|
|
if (mf->mat_nr && mf->mat_nr>=index)
|
|
mf->mat_nr--;
|
|
}
|
|
}
|
|
|
|
void mesh_set_smooth_flag(Object *meshOb, int enableSmooth) {
|
|
Mesh *me = meshOb->data;
|
|
int i;
|
|
|
|
for (i=0; i<me->totface; i++) {
|
|
MFace *mf = &((MFace*) me->mface)[i];
|
|
|
|
if (enableSmooth) {
|
|
mf->flag |= ME_SMOOTH;
|
|
} else {
|
|
mf->flag &= ~ME_SMOOTH;
|
|
}
|
|
}
|
|
|
|
DAG_object_flush_update(G.scene, meshOb, OB_RECALC_DATA);
|
|
}
|
|
|
|
void mesh_calc_normals(MVert *mverts, int numVerts, MFace *mfaces, int numFaces, float **faceNors_r)
|
|
{
|
|
float (*tnorms)[3]= MEM_callocN(numVerts*sizeof(*tnorms), "tnorms");
|
|
float *fnors= MEM_mallocN(sizeof(*fnors)*3*numFaces, "meshnormals");
|
|
int i;
|
|
|
|
for (i=0; i<numFaces; i++) {
|
|
MFace *mf= &mfaces[i];
|
|
float *f_no= &fnors[i*3];
|
|
|
|
if (mf->v4)
|
|
CalcNormFloat4(mverts[mf->v1].co, mverts[mf->v2].co, mverts[mf->v3].co, mverts[mf->v4].co, f_no);
|
|
else
|
|
CalcNormFloat(mverts[mf->v1].co, mverts[mf->v2].co, mverts[mf->v3].co, f_no);
|
|
|
|
VecAddf(tnorms[mf->v1], tnorms[mf->v1], f_no);
|
|
VecAddf(tnorms[mf->v2], tnorms[mf->v2], f_no);
|
|
VecAddf(tnorms[mf->v3], tnorms[mf->v3], f_no);
|
|
if (mf->v4)
|
|
VecAddf(tnorms[mf->v4], tnorms[mf->v4], f_no);
|
|
}
|
|
for (i=0; i<numVerts; i++) {
|
|
MVert *mv= &mverts[i];
|
|
float *no= tnorms[i];
|
|
|
|
if (Normalize(no)==0.0) {
|
|
VECCOPY(no, mv->co);
|
|
Normalize(no);
|
|
}
|
|
|
|
mv->no[0]= (short)(no[0]*32767.0);
|
|
mv->no[1]= (short)(no[1]*32767.0);
|
|
mv->no[2]= (short)(no[2]*32767.0);
|
|
}
|
|
|
|
MEM_freeN(tnorms);
|
|
|
|
if (faceNors_r) {
|
|
*faceNors_r = fnors;
|
|
} else {
|
|
MEM_freeN(fnors);
|
|
}
|
|
}
|
|
|
|
float (*mesh_getVertexCos(Mesh *me, int *numVerts_r))[3]
|
|
{
|
|
#ifdef WITH_VERSE
|
|
if(me->vnode) {
|
|
struct VLayer *vlayer;
|
|
struct VerseVert *vvert;
|
|
unsigned int i, numVerts;
|
|
float (*cos)[3];
|
|
|
|
vlayer = find_verse_layer_type((VGeomData*)((VNode*)me->vnode)->data, VERTEX_LAYER);
|
|
|
|
vvert = vlayer->dl.lb.first;
|
|
numVerts = vlayer->dl.da.count;
|
|
cos = MEM_mallocN(sizeof(*cos)*numVerts, "verse_vertexcos");
|
|
|
|
for(i=0; i<numVerts && vvert; vvert = vvert->next, i++) {
|
|
VECCOPY(cos[i], vvert->co);
|
|
}
|
|
|
|
return cos;
|
|
}
|
|
else {
|
|
#endif
|
|
int i, numVerts = me->totvert;
|
|
float (*cos)[3] = MEM_mallocN(sizeof(*cos)*numVerts, "vertexcos1");
|
|
|
|
if (numVerts_r) *numVerts_r = numVerts;
|
|
for (i=0; i<numVerts; i++)
|
|
VECCOPY(cos[i], me->mvert[i].co);
|
|
|
|
return cos;
|
|
#ifdef WITH_VERSE
|
|
}
|
|
#endif
|
|
}
|
|
|
|
float (*mesh_getRefKeyCos(Mesh *me, int *numVerts_r))[3]
|
|
{
|
|
KeyBlock *kb;
|
|
float (*cos)[3] = NULL;
|
|
int totvert;
|
|
|
|
if(me->key && me->key->refkey) {
|
|
if(numVerts_r) *numVerts_r= me->totvert;
|
|
cos= MEM_mallocN(sizeof(*cos)*me->totvert, "vertexcos1");
|
|
|
|
kb= me->key->refkey;
|
|
totvert= MIN2(kb->totelem, me->totvert);
|
|
|
|
memcpy(cos, kb->data, sizeof(*cos)*totvert);
|
|
}
|
|
|
|
return cos;
|
|
}
|
|
|
|
UvVertMap *make_uv_vert_map(struct MFace *mface, struct MTFace *tface, unsigned int totface, unsigned int totvert, int selected, float *limit)
|
|
{
|
|
UvVertMap *vmap;
|
|
UvMapVert *buf;
|
|
MFace *mf;
|
|
MTFace *tf;
|
|
unsigned int a;
|
|
int i, totuv, nverts;
|
|
|
|
totuv = 0;
|
|
|
|
/* generate UvMapVert array */
|
|
mf= mface;
|
|
tf= tface;
|
|
for(a=0; a<totface; a++, mf++, tf++)
|
|
if(!selected || (!(mf->flag & ME_HIDE) && (mf->flag & ME_FACE_SEL)))
|
|
totuv += (mf->v4)? 4: 3;
|
|
|
|
if(totuv==0)
|
|
return NULL;
|
|
|
|
vmap= (UvVertMap*)MEM_mallocN(sizeof(*vmap), "UvVertMap");
|
|
if (!vmap)
|
|
return NULL;
|
|
|
|
vmap->vert= (UvMapVert**)MEM_callocN(sizeof(*vmap->vert)*totvert, "UvMapVert*");
|
|
buf= vmap->buf= (UvMapVert*)MEM_mallocN(sizeof(*vmap->buf)*totuv, "UvMapVert");
|
|
|
|
if (!vmap->vert || !vmap->buf) {
|
|
free_uv_vert_map(vmap);
|
|
return NULL;
|
|
}
|
|
|
|
mf= mface;
|
|
tf= tface;
|
|
for(a=0; a<totface; a++, mf++, tf++) {
|
|
if(!selected || (!(mf->flag & ME_HIDE) && (mf->flag & ME_FACE_SEL))) {
|
|
nverts= (mf->v4)? 4: 3;
|
|
|
|
for(i=0; i<nverts; i++) {
|
|
buf->tfindex= i;
|
|
buf->f= a;
|
|
buf->separate = 0;
|
|
buf->next= vmap->vert[*(&mf->v1 + i)];
|
|
vmap->vert[*(&mf->v1 + i)]= buf;
|
|
buf++;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* sort individual uvs for each vert */
|
|
tf= tface;
|
|
for(a=0; a<totvert; a++) {
|
|
UvMapVert *newvlist= NULL, *vlist=vmap->vert[a];
|
|
UvMapVert *iterv, *v, *lastv, *next;
|
|
float *uv, *uv2, uvdiff[2];
|
|
|
|
while(vlist) {
|
|
v= vlist;
|
|
vlist= vlist->next;
|
|
v->next= newvlist;
|
|
newvlist= v;
|
|
|
|
uv= (tf+v->f)->uv[v->tfindex];
|
|
lastv= NULL;
|
|
iterv= vlist;
|
|
|
|
while(iterv) {
|
|
next= iterv->next;
|
|
|
|
uv2= (tf+iterv->f)->uv[iterv->tfindex];
|
|
Vec2Subf(uvdiff, uv2, uv);
|
|
|
|
|
|
if(fabs(uv[0]-uv2[0]) < limit[0] && fabs(uv[1]-uv2[1]) < limit[1]) {
|
|
if(lastv) lastv->next= next;
|
|
else vlist= next;
|
|
iterv->next= newvlist;
|
|
newvlist= iterv;
|
|
}
|
|
else
|
|
lastv=iterv;
|
|
|
|
iterv= next;
|
|
}
|
|
|
|
newvlist->separate = 1;
|
|
}
|
|
|
|
vmap->vert[a]= newvlist;
|
|
}
|
|
|
|
return vmap;
|
|
}
|
|
|
|
UvMapVert *get_uv_map_vert(UvVertMap *vmap, unsigned int v)
|
|
{
|
|
return vmap->vert[v];
|
|
}
|
|
|
|
void free_uv_vert_map(UvVertMap *vmap)
|
|
{
|
|
if (vmap) {
|
|
if (vmap->vert) MEM_freeN(vmap->vert);
|
|
if (vmap->buf) MEM_freeN(vmap->buf);
|
|
MEM_freeN(vmap);
|
|
}
|
|
}
|
|
|