archive/blender-archive
Archived
1
1
Fork 0
Code Pull Requests Packages Activity
This repository has been archived on 2023-10-09. You can view files and clone it, but cannot push or open issues or pull requests.
Files
01de7c2979dd95aa87652a6fb54bcf7fae3a9d13
blender-archive/source/blender/editors/mesh/meshtools.c

1101 lines
29 KiB
C
Raw Blame History

/*
* ***** BEGIN GPL LICENSE BLOCK *****
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* The Original Code is Copyright (C) 2004 by Blender Foundation
* All rights reserved.
*
* The Original Code is: all of this file.
*
* Contributor(s): none yet.
*
* ***** END GPL LICENSE BLOCK *****
*/
/** \file blender/editors/mesh/meshtools.c
* \ingroup edmesh
*/
/*
meshtools.c: no editmode (violated already :), tools operating on meshes
*/
#include <stddef.h>
#include <stdlib.h>
#include <math.h>
#include <float.h>
#include "MEM_guardedalloc.h"
#include "DNA_key_types.h"
#include "DNA_material_types.h"
#include "DNA_meshdata_types.h"
#include "DNA_object_types.h"
#include "DNA_scene_types.h"
#include "BLI_math.h"
#include "BLI_blenlib.h"
#include "BLI_utildefines.h"
#include "BLI_editVert.h"
#include "BLI_ghash.h"
#include "BLI_rand.h" /* for randome face sorting */
#include "BLI_threads.h"
#include "BKE_context.h"
#include "BKE_depsgraph.h"
#include "BKE_deform.h"
#include "BKE_DerivedMesh.h"
#include "BKE_key.h"
#include "BKE_library.h"
#include "BKE_main.h"
#include "BKE_mesh.h"
#include "BKE_material.h"
#include "BKE_report.h"
#include "BKE_multires.h"
#include "BLO_sys_types.h" // for intptr_t support
#include "ED_mesh.h"
#include "ED_object.h"
#include "ED_view3d.h"
#include "WM_api.h"
#include "WM_types.h"
/* own include */
#include "mesh_intern.h"
/* * ********************** no editmode!!! *********** */
/*********************** JOIN ***************************/
/* join selected meshes into the active mesh, context sensitive
return 0 if no join is made (error) and 1 of the join is done */
int join_mesh_exec(bContext *C, wmOperator *op)
{
Main *bmain= CTX_data_main(C);
Scene *scene= CTX_data_scene(C);
Object *ob= CTX_data_active_object(C);
Material **matar, *ma;
Mesh *me;
MVert *mvert, *mv;
MEdge *medge = NULL;
MFace *mface = NULL;
Key *key, *nkey=NULL;
KeyBlock *kb, *okb, *kbn;
float imat[4][4], cmat[4][4], *fp1, *fp2, curpos;
int a, b, totcol, totmat=0, totedge=0, totvert=0, totface=0, ok=0;
int vertofs, *matmap=NULL;
int i, j, index, haskey=0, edgeofs, faceofs;
bDeformGroup *dg, *odg;
MDeformVert *dvert;
CustomData vdata, edata, fdata;
if(scene->obedit) {
BKE_report(op->reports, RPT_WARNING, "Cant join while in editmode");
return OPERATOR_CANCELLED;
}
/* ob is the object we are adding geometry to */
if(!ob || ob->type!=OB_MESH) {
BKE_report(op->reports, RPT_WARNING, "Active object is not a mesh");
return OPERATOR_CANCELLED;
}
/* count & check */
CTX_DATA_BEGIN(C, Base*, base, selected_editable_bases) {
if(base->object->type==OB_MESH) {
me= base->object->data;
totvert+= me->totvert;
totedge+= me->totedge;
totface+= me->totface;
totmat+= base->object->totcol;
if(base->object == ob)
ok= 1;
/* check for shapekeys */
if(me->key)
haskey++;
}
}
CTX_DATA_END;
/* that way the active object is always selected */
if(ok==0) {
BKE_report(op->reports, RPT_WARNING, "Active object is not a selected mesh");
return OPERATOR_CANCELLED;
}
/* only join meshes if there are verts to join, there aren't too many, and we only had one mesh selected */
me= (Mesh *)ob->data;
key= me->key;
if(totvert==0 || totvert==me->totvert) {
BKE_report(op->reports, RPT_WARNING, "No mesh data to join");
return OPERATOR_CANCELLED;
}
if(totvert > MESH_MAX_VERTS) {
BKE_reportf(op->reports, RPT_WARNING, "Joining results in %d vertices, limit is " STRINGIFY(MESH_MAX_VERTS), totvert);
return OPERATOR_CANCELLED;
}
/* new material indices and material array */
matar= MEM_callocN(sizeof(void*)*totmat, "join_mesh matar");
if (totmat) matmap= MEM_callocN(sizeof(int)*totmat, "join_mesh matmap");
totcol= ob->totcol;
/* obact materials in new main array, is nicer start! */
for(a=0; a<ob->totcol; a++) {
matar[a]= give_current_material(ob, a+1);
id_us_plus((ID *)matar[a]);
/* increase id->us : will be lowered later */
}
/* - if destination mesh had shapekeys, move them somewhere safe, and set up placeholders
* with arrays that are large enough to hold shapekey data for all meshes
* - if destination mesh didn't have shapekeys, but we encountered some in the meshes we're
* joining, set up a new keyblock and assign to the mesh
*/
if(key) {
/* make a duplicate copy that will only be used here... (must remember to free it!) */
nkey= copy_key(key);
/* for all keys in old block, clear data-arrays */
for(kb= key->block.first; kb; kb= kb->next) {
if(kb->data) MEM_freeN(kb->data);
kb->data= MEM_callocN(sizeof(float)*3*totvert, "join_shapekey");
kb->totelem= totvert;
kb->weights= NULL;
}
}
else if(haskey) {
/* add a new key-block and add to the mesh */
key= me->key= add_key((ID *)me);
key->type = KEY_RELATIVE;
}
/* first pass over objects - copying materials and vertexgroups across */
CTX_DATA_BEGIN(C, Base*, base, selected_editable_bases) {
/* only act if a mesh, and not the one we're joining to */
if((ob!=base->object) && (base->object->type==OB_MESH)) {
me= base->object->data;
/* Join this object's vertex groups to the base one's */
for(dg=base->object->defbase.first; dg; dg=dg->next) {
/* See if this group exists in the object (if it doesn't, add it to the end) */
if(!defgroup_find_name(ob, dg->name)) {
odg = MEM_callocN(sizeof(bDeformGroup), "join deformGroup");
memcpy(odg, dg, sizeof(bDeformGroup));
BLI_addtail(&ob->defbase, odg);
}
}
if(ob->defbase.first && ob->actdef==0)
ob->actdef=1;
if(me->totvert) {
/* Add this object's materials to the base one's if they don't exist already (but only if limits not exceeded yet) */
if(totcol < MAXMAT) {
for(a=1; a<=base->object->totcol; a++) {
ma= give_current_material(base->object, a);
for(b=0; b<totcol; b++) {
if(ma == matar[b]) break;
}
if(b==totcol) {
matar[b]= ma;
if(ma) {
id_us_plus(&ma->id);
}
totcol++;
}
if(totcol >= MAXMAT)
break;
}
}
/* if this mesh has shapekeys, check if destination mesh already has matching entries too */
if(me->key && key) {
for(kb= me->key->block.first; kb; kb= kb->next) {
/* if key doesn't exist in destination mesh, add it */
if(key_get_named_keyblock(key, kb->name) == NULL) {
/* copy this existing one over to the new shapekey block */
kbn= MEM_dupallocN(kb);
kbn->prev= kbn->next= NULL;
/* adjust adrcode and other settings to fit (allocate a new data-array) */
kbn->data= MEM_callocN(sizeof(float)*3*totvert, "joined_shapekey");
kbn->totelem= totvert;
kbn->weights= NULL;
okb= key->block.last;
curpos= (okb) ? okb->pos : -0.1f;
if(key->type == KEY_RELATIVE)
kbn->pos= curpos + 0.1f;
else
kbn->pos= curpos;
BLI_addtail(&key->block, kbn);
kbn->adrcode= key->totkey;
key->totkey++;
if(key->totkey==1) key->refkey= kbn;
// XXX 2.5 Animato
#if 0
/* also, copy corresponding ipo-curve to ipo-block if applicable */
if(me->key->ipo && key->ipo) {
// FIXME... this is a luxury item!
puts("FIXME: ignoring IPO's when joining shapekeys on Meshes for now...");
}
#endif
}
}
}
}
}
}
CTX_DATA_END;
/* setup new data for destination mesh */
memset(&vdata, 0, sizeof(vdata));
memset(&edata, 0, sizeof(edata));
memset(&fdata, 0, sizeof(fdata));
mvert= CustomData_add_layer(&vdata, CD_MVERT, CD_CALLOC, NULL, totvert);
medge= CustomData_add_layer(&edata, CD_MEDGE, CD_CALLOC, NULL, totedge);
mface= CustomData_add_layer(&fdata, CD_MFACE, CD_CALLOC, NULL, totface);
vertofs= 0;
edgeofs= 0;
faceofs= 0;
/* inverse transform for all selected meshes in this object */
invert_m4_m4(imat, ob->obmat);
CTX_DATA_BEGIN(C, Base*, base, selected_editable_bases) {
/* only join if this is a mesh */
if(base->object->type==OB_MESH) {
me= base->object->data;
if(me->totvert) {
/* standard data */
CustomData_merge(&me->vdata, &vdata, CD_MASK_MESH, CD_DEFAULT, totvert);
CustomData_copy_data(&me->vdata, &vdata, 0, vertofs, me->totvert);
/* vertex groups */
dvert= CustomData_get(&vdata, vertofs, CD_MDEFORMVERT);
/* NB: vertex groups here are new version */
if(dvert) {
for(i=0; i<me->totvert; i++) {
for(j=0; j<dvert[i].totweight; j++) {
/* Find the old vertex group */
odg = BLI_findlink(&base->object->defbase, dvert[i].dw[j].def_nr);
if(odg) {
/* Search for a match in the new object, and set new index */
for(dg=ob->defbase.first, index=0; dg; dg=dg->next, index++) {
if(!strcmp(dg->name, odg->name)) {
dvert[i].dw[j].def_nr = index;
break;
}
}
}
}
}
}
/* if this is the object we're merging into, no need to do anything */
if(base->object != ob) {
/* watch this: switch matmul order really goes wrong */
mult_m4_m4m4(cmat, imat, base->object->obmat);
/* transform vertex coordinates into new space */
for(a=0, mv=mvert; a < me->totvert; a++, mv++) {
mul_m4_v3(cmat, mv->co);
}
/* for each shapekey in destination mesh:
* - if there's a matching one, copy it across (will need to transform vertices into new space...)
* - otherwise, just copy own coordinates of mesh (no need to transform vertex coordinates into new space)
*/
if(key) {
/* if this mesh has any shapekeys, check first, otherwise just copy coordinates */
for(kb= key->block.first; kb; kb= kb->next) {
/* get pointer to where to write data for this mesh in shapekey's data array */
fp1= ((float *)kb->data) + (vertofs*3);
/* check if this mesh has such a shapekey */
okb= key_get_named_keyblock(me->key, kb->name);
if(okb) {
/* copy this mesh's shapekey to the destination shapekey (need to transform first) */
fp2= ((float *)(okb->data));
for(a=0; a < me->totvert; a++, fp1+=3, fp2+=3) {
VECCOPY(fp1, fp2);
mul_m4_v3(cmat, fp1);
}
}
else {
/* copy this mesh's vertex coordinates to the destination shapekey */
mv= mvert;
for(a=0; a < me->totvert; a++, fp1+=3, mv++) {
VECCOPY(fp1, mv->co);
}
}
}
}
}
else {
/* for each shapekey in destination mesh:
* - if it was an 'original', copy the appropriate data from nkey
* - otherwise, copy across plain coordinates (no need to transform coordinates)
*/
if(key) {
for(kb= key->block.first; kb; kb= kb->next) {
/* get pointer to where to write data for this mesh in shapekey's data array */
fp1= ((float *)kb->data) + (vertofs*3);
/* check if this was one of the original shapekeys */
okb= key_get_named_keyblock(nkey, kb->name);
if(okb) {
/* copy this mesh's shapekey to the destination shapekey */
fp2= ((float *)(okb->data));
for(a=0; a < me->totvert; a++, fp1+=3, fp2+=3) {
VECCOPY(fp1, fp2);
}
}
else {
/* copy base-coordinates to the destination shapekey */
mv= mvert;
for(a=0; a < me->totvert; a++, fp1+=3, mv++) {
VECCOPY(fp1, mv->co);
}
}
}
}
}
/* advance mvert pointer to end of base mesh's data */
mvert+= me->totvert;
}
if(me->totface) {
/* make mapping for materials */
for(a=1; a<=base->object->totcol; a++) {
ma= give_current_material(base->object, a);
for(b=0; b<totcol; b++) {
if(ma == matar[b]) {
matmap[a-1]= b;
break;
}
}
}
if(base->object!=ob)
multiresModifier_prepare_join(scene, base->object, ob);
CustomData_merge(&me->fdata, &fdata, CD_MASK_MESH, CD_DEFAULT, totface);
CustomData_copy_data(&me->fdata, &fdata, 0, faceofs, me->totface);
for(a=0; a<me->totface; a++, mface++) {
mface->v1+= vertofs;
mface->v2+= vertofs;
mface->v3+= vertofs;
if(mface->v4) mface->v4+= vertofs;
if (matmap)
mface->mat_nr= matmap[(int)mface->mat_nr];
else
mface->mat_nr= 0;
}
faceofs += me->totface;
}
if(me->totedge) {
CustomData_merge(&me->edata, &edata, CD_MASK_MESH, CD_DEFAULT, totedge);
CustomData_copy_data(&me->edata, &edata, 0, edgeofs, me->totedge);
for(a=0; a<me->totedge; a++, medge++) {
medge->v1+= vertofs;
medge->v2+= vertofs;
}
edgeofs += me->totedge;
}
/* vertofs is used to help newly added verts be reattached to their edge/face
* (cannot be set earlier, or else reattaching goes wrong)
*/
vertofs += me->totvert;
/* free base, now that data is merged */
if(base->object != ob)
ED_base_object_free_and_unlink(bmain, scene, base);
}
}
CTX_DATA_END;
/* return to mesh we're merging to */
me= ob->data;
CustomData_free(&me->vdata, me->totvert);
CustomData_free(&me->edata, me->totedge);
CustomData_free(&me->fdata, me->totface);
me->totvert= totvert;
me->totedge= totedge;
me->totface= totface;
me->vdata= vdata;
me->edata= edata;
me->fdata= fdata;
mesh_update_customdata_pointers(me);
/* old material array */
for(a=1; a<=ob->totcol; a++) {
ma= ob->mat[a-1];
if(ma) ma->id.us--;
}
for(a=1; a<=me->totcol; a++) {
ma= me->mat[a-1];
if(ma) ma->id.us--;
}
if(ob->mat) MEM_freeN(ob->mat);
if(ob->matbits) MEM_freeN(ob->matbits);
if(me->mat) MEM_freeN(me->mat);
ob->mat= me->mat= NULL;
ob->matbits= NULL;
if(totcol) {
me->mat= matar;
ob->mat= MEM_callocN(sizeof(void *)*totcol, "join obmatar");
ob->matbits= MEM_callocN(sizeof(char)*totcol, "join obmatbits");
}
else
MEM_freeN(matar);
ob->totcol= me->totcol= totcol;
if (matmap) MEM_freeN(matmap);
/* other mesh users */
test_object_materials((ID *)me);
/* free temp copy of destination shapekeys (if applicable) */
if(nkey) {
// XXX 2.5 Animato
#if 0
/* free it's ipo too - both are not actually freed from memory yet as ID-blocks */
if(nkey->ipo) {
free_ipo(nkey->ipo);
BLI_remlink(&bmain->ipo, nkey->ipo);
MEM_freeN(nkey->ipo);
}
#endif
free_key(nkey);
BLI_remlink(&bmain->key, nkey);
MEM_freeN(nkey);
}
DAG_scene_sort(bmain, scene); // removed objects, need to rebuild dag before editmode call
#if 0
ED_object_enter_editmode(C, EM_WAITCURSOR);
ED_object_exit_editmode(C, EM_FREEDATA|EM_WAITCURSOR|EM_DO_UNDO);
#else
/* toggle editmode using lower level functions so this can be called from python */
make_editMesh(scene, ob);
load_editMesh(scene, ob);
free_editMesh(me->edit_mesh);
MEM_freeN(me->edit_mesh);
me->edit_mesh= NULL;
DAG_id_tag_update(&ob->id, OB_RECALC_OB|OB_RECALC_DATA);
#endif
WM_event_add_notifier(C, NC_SCENE|ND_OB_ACTIVE, scene);
return OPERATOR_FINISHED;
}
/*********************** JOIN AS SHAPES ***************************/
/* Append selected meshes vertex locations as shapes of the active mesh,
return 0 if no join is made (error) and 1 of the join is done */
int join_mesh_shapes_exec(bContext *C, wmOperator *op)
{
Scene *scene= CTX_data_scene(C);
Object *ob= CTX_data_active_object(C);
Mesh *me= (Mesh *)ob->data;
Mesh *selme=NULL;
DerivedMesh *dm=NULL;
Key *key=me->key;
KeyBlock *kb;
int ok=0, nonequal_verts=0;
CTX_DATA_BEGIN(C, Base*, base, selected_editable_bases) {
if (base->object == ob) continue;
if (base->object->type==OB_MESH) {
selme = (Mesh *)base->object->data;
if (selme->totvert==me->totvert)
ok++;
else
nonequal_verts=1;
}
}
CTX_DATA_END;
if (!ok) {
if (nonequal_verts)
BKE_report(op->reports, RPT_WARNING, "Selected meshes must have equal numbers of vertices");
else
BKE_report(op->reports, RPT_WARNING, "No additional selected meshes with equal vertex count to join");
return OPERATOR_CANCELLED;
}
if(key == NULL) {
key= me->key= add_key((ID *)me);
key->type= KEY_RELATIVE;
/* first key added, so it was the basis. initialise it with the existing mesh */
kb= add_keyblock(key, NULL);
mesh_to_key(me, kb);
}
/* now ready to add new keys from selected meshes */
CTX_DATA_BEGIN(C, Base*, base, selected_editable_bases) {
if (base->object == ob) continue;
if(base->object->type==OB_MESH) {
selme = (Mesh *)base->object->data;
if (selme->totvert==me->totvert) {
dm = mesh_get_derived_deform(scene, base->object, CD_MASK_BAREMESH);
if (!dm) continue;
kb= add_keyblock(key, base->object->id.name+2);
DM_to_meshkey(dm, me, kb);
dm->release(dm);
}
}
}
CTX_DATA_END;
WM_event_add_notifier(C, NC_SCENE|ND_OB_ACTIVE, scene);
return OPERATOR_FINISHED;
}
/* ********************* MESH VERTEX OCTREE LOOKUP ************* */
/* important note; this is unfinished, needs better API for editmode, and custom threshold */
#define MOC_RES 8
#define MOC_NODE_RES 8
#define MOC_THRESH 0.00002f
typedef struct MocNode {
struct MocNode *next;
intptr_t index[MOC_NODE_RES];
} MocNode;
static int mesh_octree_get_base_offs(float *co, float *offs, float *div)
{
int vx, vy, vz;
vx= floor( (co[0]-offs[0])/div[0] );
vy= floor( (co[1]-offs[1])/div[1] );
vz= floor( (co[2]-offs[2])/div[2] );
CLAMP(vx, 0, MOC_RES-1);
CLAMP(vy, 0, MOC_RES-1);
CLAMP(vz, 0, MOC_RES-1);
return (vx*MOC_RES*MOC_RES) + vy*MOC_RES + vz;
}
static void mesh_octree_add_node(MocNode **bt, intptr_t index)
{
if(*bt==NULL) {
*bt= MEM_callocN(sizeof(MocNode), "MocNode");
(*bt)->index[0]= index;
}
else {
int a;
for(a=0; a<MOC_NODE_RES; a++) {
if((*bt)->index[a]==index)
return;
else if((*bt)->index[a]==0) {
(*bt)->index[a]= index;
return;
}
}
mesh_octree_add_node(&(*bt)->next, index);
}
}
static void mesh_octree_free_node(MocNode **bt)
{
if( (*bt)->next ) {
mesh_octree_free_node(&(*bt)->next);
}
MEM_freeN(*bt);
}
/* temporal define, just to make nicer code below */
#define MOC_INDEX(vx, vy, vz) (((vx)*MOC_RES*MOC_RES) + (vy)*MOC_RES + (vz))
static void mesh_octree_add_nodes(MocNode **basetable, float *co, float *offs, float *div, intptr_t index)
{
float fx, fy, fz;
int vx, vy, vz;
if ( !finite(co[0]) ||
!finite(co[1]) ||
!finite(co[2]))
{
return;
}
fx= (co[0]-offs[0])/div[0];
fy= (co[1]-offs[1])/div[1];
fz= (co[2]-offs[2])/div[2];
CLAMP(fx, 0.0f, MOC_RES-MOC_THRESH);
CLAMP(fy, 0.0f, MOC_RES-MOC_THRESH);
CLAMP(fz, 0.0f, MOC_RES-MOC_THRESH);
vx= (int)floorf(fx);
vy= (int)floorf(fy);
vz= (int)floorf(fz);
mesh_octree_add_node(basetable + MOC_INDEX(vx, vy, vz), index);
if (vx > 0)
if (fx-((float)vx)-MOC_THRESH < 0.0f)
mesh_octree_add_node(basetable + MOC_INDEX(vx - 1, vy, vz), index);
if (vx < MOC_RES - 2)
if (fx-((float)vx)+MOC_THRESH > 1.0f)
mesh_octree_add_node(basetable + MOC_INDEX(vx + 1, vy, vz), index);
if (vy > 0)
if (fy-((float)vy)-MOC_THRESH < 0.0f)
mesh_octree_add_node(basetable + MOC_INDEX(vx, vy - 1, vz), index);
if (vy < MOC_RES - 2)
if (fy-((float)vy)+MOC_THRESH > 1.0f)
mesh_octree_add_node(basetable + MOC_INDEX(vx, vy + 1, vz), index);
if (vz > 0)
if (fz-((float)vz)-MOC_THRESH < 0.0f)
mesh_octree_add_node(basetable + MOC_INDEX(vx, vy, vz - 1), index);
if (vz <MOC_RES - 2)
if (fz-((float)vz)+MOC_THRESH > 1.0f)
mesh_octree_add_node(basetable + MOC_INDEX(vx, vy, vz + 1), index);
}
static intptr_t mesh_octree_find_index(MocNode **bt, MVert *mvert, float *co)
{
float *vec;
int a;
if(*bt==NULL)
return -1;
for(a=0; a<MOC_NODE_RES; a++) {
if((*bt)->index[a]) {
/* does mesh verts and editmode, code looks potential dangerous, octree should really be filled OK! */
if(mvert) {
vec= (mvert+(*bt)->index[a]-1)->co;
if(compare_v3v3(vec, co, MOC_THRESH))
return (*bt)->index[a]-1;
}
else {
EditVert *eve= (EditVert *)((*bt)->index[a]);
if(compare_v3v3(eve->co, co, MOC_THRESH))
return (*bt)->index[a];
}
}
else return -1;
}
if( (*bt)->next)
return mesh_octree_find_index(&(*bt)->next, mvert, co);
return -1;
}
static struct {
MocNode **table;
float offs[3], div[3];
} MeshOctree = {NULL, {0, 0, 0}, {0, 0, 0}};
/* mode is 's' start, or 'e' end, or 'u' use */
/* if end, ob can be NULL */
intptr_t mesh_octree_table(Object *ob, EditMesh *em, float *co, char mode)
{
MocNode **bt;
if(mode=='u') { /* use table */
if(MeshOctree.table==NULL)
mesh_octree_table(ob, em, NULL, 's');
if(MeshOctree.table) {
Mesh *me= ob->data;
bt= MeshOctree.table + mesh_octree_get_base_offs(co, MeshOctree.offs, MeshOctree.div);
if(em)
return mesh_octree_find_index(bt, NULL, co);
else
return mesh_octree_find_index(bt, me->mvert, co);
}
return -1;
}
else if(mode=='s') { /* start table */
Mesh *me= ob->data;
float min[3], max[3];
/* we compute own bounding box and don't reuse ob->bb because
* we are using the undeformed coordinates*/
INIT_MINMAX(min, max);
if(em && me->edit_mesh==em) {
EditVert *eve;
for(eve= em->verts.first; eve; eve= eve->next)
DO_MINMAX(eve->co, min, max)
}
else {
MVert *mvert;
int a;
for(a=0, mvert= me->mvert; a<me->totvert; a++, mvert++)
DO_MINMAX(mvert->co, min, max);
}
/* for quick unit coordinate calculus */
VECCOPY(MeshOctree.offs, min);
MeshOctree.offs[0]-= MOC_THRESH; /* we offset it 1 threshold unit extra */
MeshOctree.offs[1]-= MOC_THRESH;
MeshOctree.offs[2]-= MOC_THRESH;
sub_v3_v3v3(MeshOctree.div, max, min);
MeshOctree.div[0]+= 2*MOC_THRESH; /* and divide with 2 threshold unit more extra (try 8x8 unit grid on paint) */
MeshOctree.div[1]+= 2*MOC_THRESH;
MeshOctree.div[2]+= 2*MOC_THRESH;
mul_v3_fl(MeshOctree.div, 1.0f/MOC_RES);
if(MeshOctree.div[0]==0.0f) MeshOctree.div[0]= 1.0f;
if(MeshOctree.div[1]==0.0f) MeshOctree.div[1]= 1.0f;
if(MeshOctree.div[2]==0.0f) MeshOctree.div[2]= 1.0f;
if(MeshOctree.table) /* happens when entering this call without ending it */
mesh_octree_table(ob, em, co, 'e');
MeshOctree.table= MEM_callocN(MOC_RES*MOC_RES*MOC_RES*sizeof(void *), "sym table");
if(em && me->edit_mesh==em) {
EditVert *eve;
for(eve= em->verts.first; eve; eve= eve->next) {
mesh_octree_add_nodes(MeshOctree.table, eve->co, MeshOctree.offs, MeshOctree.div, (intptr_t)(eve));
}
}
else {
MVert *mvert;
int a;
for(a=0, mvert= me->mvert; a<me->totvert; a++, mvert++)
mesh_octree_add_nodes(MeshOctree.table, mvert->co, MeshOctree.offs, MeshOctree.div, a+1);
}
}
else if(mode=='e') { /* end table */
if(MeshOctree.table) {
int a;
for(a=0, bt=MeshOctree.table; a<MOC_RES*MOC_RES*MOC_RES; a++, bt++) {
if(*bt) mesh_octree_free_node(bt);
}
MEM_freeN(MeshOctree.table);
MeshOctree.table= NULL;
}
}
return 0;
}
MirrTopoStore_t mesh_topo_store= {NULL, -1. -1, -1};
/* mode is 's' start, or 'e' end, or 'u' use */
/* if end, ob can be NULL */
/* note, is supposed return -1 on error, which callers are currently checking for, but is not used so far */
int mesh_mirrtopo_table(Object *ob, char mode)
{
if(mode=='u') { /* use table */
if (ED_mesh_mirrtopo_recalc_check(ob->data, ob->mode, &mesh_topo_store)) {
mesh_mirrtopo_table(ob, 's');
}
}
else if(mode=='s') { /* start table */
ED_mesh_mirrtopo_init(ob->data, ob->mode, &mesh_topo_store, FALSE);
}
else if(mode=='e') { /* end table */
ED_mesh_mirrtopo_free(&mesh_topo_store);
}
return 0;
}
static int mesh_get_x_mirror_vert_spacial(Object *ob, int index)
{
Mesh *me= ob->data;
MVert *mvert;
float vec[3];
mvert= me->mvert+index;
vec[0]= -mvert->co[0];
vec[1]= mvert->co[1];
vec[2]= mvert->co[2];
return mesh_octree_table(ob, NULL, vec, 'u');
}
static int mesh_get_x_mirror_vert_topo(Object *ob, int index)
{
if (mesh_mirrtopo_table(ob, 'u')==-1)
return -1;
return mesh_topo_store.index_lookup[index];
}
int mesh_get_x_mirror_vert(Object *ob, int index)
{
if (((Mesh *)ob->data)->editflag & ME_EDIT_MIRROR_TOPO) {
return mesh_get_x_mirror_vert_topo(ob, index);
} else {
return mesh_get_x_mirror_vert_spacial(ob, index);
}
}
static EditVert *editmesh_get_x_mirror_vert_spacial(Object *ob, EditMesh *em, float *co)
{
float vec[3];
intptr_t poinval;
/* ignore nan verts */
if (!finite(co[0]) ||
!finite(co[1]) ||
!finite(co[2])
)
return NULL;
vec[0]= -co[0];
vec[1]= co[1];
vec[2]= co[2];
poinval= mesh_octree_table(ob, em, vec, 'u');
if(poinval != -1)
return (EditVert *)(poinval);
return NULL;
}
static EditVert *editmesh_get_x_mirror_vert_topo(Object *ob, struct EditMesh *em, EditVert *eve, int index)
{
intptr_t poinval;
if (mesh_mirrtopo_table(ob, 'u')==-1)
return NULL;
if (index == -1) {
index = BLI_findindex(&em->verts, eve);
if (index == -1) {
return NULL;
}
}
poinval= mesh_topo_store.index_lookup[index];
if(poinval != -1)
return (EditVert *)(poinval);
return NULL;
}
EditVert *editmesh_get_x_mirror_vert(Object *ob, struct EditMesh *em, EditVert *eve, float *co, int index)
{
if (((Mesh *)ob->data)->editflag & ME_EDIT_MIRROR_TOPO) {
return editmesh_get_x_mirror_vert_topo(ob, em, eve, index);
} else {
return editmesh_get_x_mirror_vert_spacial(ob, em, co);
}
}
#if 0
float *editmesh_get_mirror_uv(int axis, float *uv, float *mirrCent, float *face_cent)
{
float vec[2];
float cent_vec[2];
float cent[2];
/* ignore nan verts */
if (isnan(uv[0]) || !finite(uv[0]) ||
isnan(uv[1]) || !finite(uv[1])
)
return NULL;
if (axis) {
vec[0]= uv[0];
vec[1]= -((uv[1])-mirrCent[1]) + mirrCent[1];
cent_vec[0] = face_cent[0];
cent_vec[1]= -((face_cent[1])-mirrCent[1]) + mirrCent[1];
} else {
vec[0]= -((uv[0])-mirrCent[0]) + mirrCent[0];
vec[1]= uv[1];
cent_vec[0]= -((face_cent[0])-mirrCent[0]) + mirrCent[0];
cent_vec[1] = face_cent[1];
}
/* TODO - Optimize */
{
EditFace *efa;
int i, len;
for(efa=em->faces.first; efa; efa=efa->next) {
MTFace *tf= (MTFace *)CustomData_em_get(&em->fdata, efa->data, CD_MTFACE);
uv_center(tf->uv, cent, (void *)efa->v4);
if ( (fabs(cent[0] - cent_vec[0]) < 0.001) && (fabs(cent[1] - cent_vec[1]) < 0.001) ) {
len = efa->v4 ? 4 : 3;
for (i=0; i<len; i++) {
if ( (fabs(tf->uv[i][0] - vec[0]) < 0.001) && (fabs(tf->uv[i][1] - vec[1]) < 0.001) ) {
return tf->uv[i];
}
}
}
}
}
return NULL;
}
#endif
static unsigned int mirror_facehash(const void *ptr)
{
const MFace *mf= ptr;
int v0, v1;
if(mf->v4) {
v0= MIN4(mf->v1, mf->v2, mf->v3, mf->v4);
v1= MAX4(mf->v1, mf->v2, mf->v3, mf->v4);
}
else {
v0= MIN3(mf->v1, mf->v2, mf->v3);
v1= MAX3(mf->v1, mf->v2, mf->v3);
}
return ((v0*39)^(v1*31));
}
static int mirror_facerotation(MFace *a, MFace *b)
{
if(b->v4) {
if(a->v1==b->v1 && a->v2==b->v2 && a->v3==b->v3 && a->v4==b->v4)
return 0;
else if(a->v4==b->v1 && a->v1==b->v2 && a->v2==b->v3 && a->v3==b->v4)
return 1;
else if(a->v3==b->v1 && a->v4==b->v2 && a->v1==b->v3 && a->v2==b->v4)
return 2;
else if(a->v2==b->v1 && a->v3==b->v2 && a->v4==b->v3 && a->v1==b->v4)
return 3;
}
else {
if(a->v1==b->v1 && a->v2==b->v2 && a->v3==b->v3)
return 0;
else if(a->v3==b->v1 && a->v1==b->v2 && a->v2==b->v3)
return 1;
else if(a->v2==b->v1 && a->v3==b->v2 && a->v1==b->v3)
return 2;
}
return -1;
}
static int mirror_facecmp(const void *a, const void *b)
{
return (mirror_facerotation((MFace*)a, (MFace*)b) == -1);
}
int *mesh_get_x_mirror_faces(Object *ob, EditMesh *em)
{
Mesh *me= ob->data;
MVert *mv, *mvert= me->mvert;
MFace mirrormf, *mf, *hashmf, *mface= me->mface;
GHash *fhash;
int *mirrorverts, *mirrorfaces;
int a;
mirrorverts= MEM_callocN(sizeof(int)*me->totvert, "MirrorVerts");
mirrorfaces= MEM_callocN(sizeof(int)*2*me->totface, "MirrorFaces");
mesh_octree_table(ob, em, NULL, 's');
for(a=0, mv=mvert; a<me->totvert; a++, mv++)
mirrorverts[a]= mesh_get_x_mirror_vert(ob, a);
mesh_octree_table(ob, em, NULL, 'e');
fhash= BLI_ghash_new(mirror_facehash, mirror_facecmp, "mirror_facehash gh");
for(a=0, mf=mface; a<me->totface; a++, mf++)
BLI_ghash_insert(fhash, mf, mf);
for(a=0, mf=mface; a<me->totface; a++, mf++) {
mirrormf.v1= mirrorverts[mf->v3];
mirrormf.v2= mirrorverts[mf->v2];
mirrormf.v3= mirrorverts[mf->v1];
mirrormf.v4= (mf->v4)? mirrorverts[mf->v4]: 0;
/* make sure v4 is not 0 if a quad */
if(mf->v4 && mirrormf.v4==0) {
SWAP(int, mirrormf.v1, mirrormf.v3);
SWAP(int, mirrormf.v2, mirrormf.v4);
}
hashmf= BLI_ghash_lookup(fhash, &mirrormf);
if(hashmf) {
mirrorfaces[a*2]= hashmf - mface;
mirrorfaces[a*2+1]= mirror_facerotation(&mirrormf, hashmf);
}
else
mirrorfaces[a*2]= -1;
}
BLI_ghash_free(fhash, NULL, NULL);
MEM_freeN(mirrorverts);
return mirrorfaces;
}
View Git Blame Copy Permalink