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test2/source/blender/blenkernel/intern/subsurf_ccg.c
Brecht Van Lommel 80ee52e444 Multiple UV and vertex color layers: (still work in progress) 
These can be created and deleted in the Mesh panel in the same place as
before. There is always one active UV and vertex color layer, that is
edited and displayed.

Important things to do:
- Render engine, material support
- Multires and NMesh now lose non active layers

Also CustomData changes to support muliple layers of the same type, and
changes to layer allocation, updated documentation is here:
http://mediawiki.blender.org/index.php/BlenderDev/BlenderArchitecture/CustomData
2006-12-12 21:29:09 +00:00

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/**
* $Id$
*
* ***** BEGIN GPL/BL DUAL 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. The Blender
* Foundation also sells licenses for use in proprietary software under
* the Blender License. See http://www.blender.org/BL/ for information
* about this.
*
* 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* The Original Code is Copyright (C) 2005 Blender Foundation.
* All rights reserved.
*
* The Original Code is: all of this file.
*
* Contributor(s): none yet.
*
* ***** END GPL/BL DUAL LICENSE BLOCK *****
*/
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <math.h>
#include <float.h>
#include "MEM_guardedalloc.h"
#include "DNA_mesh_types.h"
#include "DNA_meshdata_types.h"
#include "DNA_modifier_types.h"
#include "DNA_object_types.h"
#include "BKE_bad_level_calls.h"
#include "BKE_cdderivedmesh.h"
#include "BKE_customdata.h"
#include "BKE_utildefines.h"
#include "BKE_global.h"
#include "BKE_mesh.h"
#include "BKE_subsurf.h"
#include "BKE_displist.h"
#include "BKE_DerivedMesh.h"
#include "BLI_blenlib.h"
#include "BLI_editVert.h"
#include "BLI_arithb.h"
#include "BLI_linklist.h"
#include "BLI_memarena.h"
#include "BLI_edgehash.h"
#include "BIF_gl.h"
#include "CCGSubSurf.h"
typedef struct _VertData {
float co[3];
float no[3];
} VertData;
struct CCGDerivedMesh {
DerivedMesh dm;
CCGSubSurf *ss;
int drawInteriorEdges, useSubsurfUv;
Mesh *me;
struct {int startVert; CCGVert *vert;} *vertMap;
struct {int startVert; int startEdge; CCGEdge *edge;} *edgeMap;
struct {int startVert; int startEdge;
int startFace; CCGFace *face;} *faceMap;
};
typedef struct CCGDerivedMesh CCGDerivedMesh;
static int ccgDM_getVertMapIndex(CCGDerivedMesh *ccgdm, CCGSubSurf *ss, CCGVert *v);
static int ccgDM_getEdgeMapIndex(CCGDerivedMesh *ccgdm, CCGSubSurf *ss, CCGEdge *e);
static int ccgDM_getFaceMapIndex(CCGDerivedMesh *ccgdm, CCGSubSurf *ss, CCGFace *f);
///
static void *arena_alloc(CCGAllocatorHDL a, int numBytes) {
return BLI_memarena_alloc(a, numBytes);
}
static void *arena_realloc(CCGAllocatorHDL a, void *ptr, int newSize, int oldSize) {
void *p2 = BLI_memarena_alloc(a, newSize);
if (ptr) {
memcpy(p2, ptr, oldSize);
}
return p2;
}
static void arena_free(CCGAllocatorHDL a, void *ptr) {
}
static void arena_release(CCGAllocatorHDL a) {
BLI_memarena_free(a);
}
static CCGSubSurf *_getSubSurf(CCGSubSurf *prevSS, int subdivLevels, int useAging, int useArena, int useFlatSubdiv) {
CCGMeshIFC ifc;
CCGSubSurf *ccgSS;
/* subdivLevels==0 is not allowed */
subdivLevels = MAX2(subdivLevels, 1);
if (prevSS) {
int oldUseAging;
useAging = !!useAging;
ccgSubSurf_getUseAgeCounts(prevSS, &oldUseAging, NULL, NULL, NULL);
if (oldUseAging!=useAging) {
ccgSubSurf_free(prevSS);
} else {
ccgSubSurf_setSubdivisionLevels(prevSS, subdivLevels);
return prevSS;
}
}
if (useAging) {
ifc.vertUserSize = ifc.edgeUserSize = ifc.faceUserSize = 12;
} else {
ifc.vertUserSize = ifc.edgeUserSize = ifc.faceUserSize = 8;
}
ifc.vertDataSize = sizeof(VertData);
if (useArena) {
CCGAllocatorIFC allocatorIFC;
CCGAllocatorHDL allocator = BLI_memarena_new((1<<16));
allocatorIFC.alloc = arena_alloc;
allocatorIFC.realloc = arena_realloc;
allocatorIFC.free = arena_free;
allocatorIFC.release = arena_release;
ccgSS = ccgSubSurf_new(&ifc, subdivLevels, &allocatorIFC, allocator);
} else {
ccgSS = ccgSubSurf_new(&ifc, subdivLevels, NULL, NULL);
}
if (useAging) {
ccgSubSurf_setUseAgeCounts(ccgSS, 1, 8, 8, 8);
}
ccgSubSurf_setCalcVertexNormals(ccgSS, 1, BLI_STRUCT_OFFSET(VertData, no));
return ccgSS;
}
static int getEdgeIndex(CCGSubSurf *ss, CCGEdge *e, int x, int edgeSize) {
CCGVert *v0 = ccgSubSurf_getEdgeVert0(ss, e);
CCGVert *v1 = ccgSubSurf_getEdgeVert1(ss, e);
int v0idx = *((int*) ccgSubSurf_getVertUserData(ss, v0));
int v1idx = *((int*) ccgSubSurf_getVertUserData(ss, v1));
int edgeBase = *((int*) ccgSubSurf_getEdgeUserData(ss, e));
if (x==0) {
return v0idx;
} else if (x==edgeSize-1) {
return v1idx;
} else {
return edgeBase + x-1;
}
}
static int getFaceIndex(CCGSubSurf *ss, CCGFace *f, int S, int x, int y, int edgeSize, int gridSize) {
int faceBase = *((int*) ccgSubSurf_getFaceUserData(ss, f));
int numVerts = ccgSubSurf_getFaceNumVerts(ss, f);
if (x==gridSize-1 && y==gridSize-1) {
CCGVert *v = ccgSubSurf_getFaceVert(ss, f, S);
return *((int*) ccgSubSurf_getVertUserData(ss, v));
} else if (x==gridSize-1) {
CCGVert *v = ccgSubSurf_getFaceVert(ss, f, S);
CCGEdge *e = ccgSubSurf_getFaceEdge(ss, f, S);
int edgeBase = *((int*) ccgSubSurf_getEdgeUserData(ss, e));
if (v==ccgSubSurf_getEdgeVert0(ss, e)) {
return edgeBase + (gridSize-1-y)-1;
} else {
return edgeBase + (edgeSize-2-1)-((gridSize-1-y)-1);
}
} else if (y==gridSize-1) {
CCGVert *v = ccgSubSurf_getFaceVert(ss, f, S);
CCGEdge *e = ccgSubSurf_getFaceEdge(ss, f, (S+numVerts-1)%numVerts);
int edgeBase = *((int*) ccgSubSurf_getEdgeUserData(ss, e));
if (v==ccgSubSurf_getEdgeVert0(ss, e)) {
return edgeBase + (gridSize-1-x)-1;
} else {
return edgeBase + (edgeSize-2-1)-((gridSize-1-x)-1);
}
} else if (x==0 && y==0) {
return faceBase;
} else if (x==0) {
S = (S+numVerts-1)%numVerts;
return faceBase + 1 + (gridSize-2)*S + (y-1);
} else if (y==0) {
return faceBase + 1 + (gridSize-2)*S + (x-1);
} else {
return faceBase + 1 + (gridSize-2)*numVerts + S*(gridSize-2)*(gridSize-2) + (y-1)*(gridSize-2) + (x-1);
}
}
static void get_face_uv_map_vert(UvVertMap *vmap, struct MFace *mf, int fi, CCGVertHDL *fverts) {
unsigned int *fv = &mf->v1;
UvMapVert *v, *nv;
int j, nverts= mf->v4? 4: 3;
for (j=0; j<nverts; j++, fv++) {
for (nv=v=get_uv_map_vert(vmap, *fv); v; v=v->next) {
if (v->separate)
nv= v;
if (v->f == fi)
break;
}
fverts[j]= (CCGVertHDL)(nv->f*4 + nv->tfindex);
}
}
static int ss_sync_from_uv(CCGSubSurf *ss, CCGSubSurf *origss, DerivedMesh *dm, MTFace *tface) {
MFace *mface = dm->getFaceArray(dm);
MVert *mvert = dm->getVertArray(dm);
int totvert = dm->getNumVerts(dm);
int totface = dm->getNumFaces(dm);
int i, j, seam;
UvMapVert *v;
UvVertMap *vmap;
float limit[2];
CCGVertHDL fverts[4];
EdgeHash *ehash;
float creaseFactor = (float)ccgSubSurf_getSubdivisionLevels(ss);
limit[0]= limit[1]= 0.0001f;
vmap= make_uv_vert_map(mface, tface, totface, totvert, 0, limit);
if (!vmap)
return 0;
ccgSubSurf_initFullSync(ss);
/* create vertices */
for (i=0; i<totvert; i++) {
if (!get_uv_map_vert(vmap, i))
continue;
for (v=get_uv_map_vert(vmap, i)->next; v; v=v->next)
if (v->separate)
break;
seam = (v != NULL) || ((mvert+i)->flag & ME_VERT_MERGED);
for (v=get_uv_map_vert(vmap, i); v; v=v->next) {
if (v->separate) {
CCGVert *ssv;
CCGVertHDL vhdl = (CCGVertHDL)(v->f*4 + v->tfindex);
float uv[3];
uv[0]= (tface+v->f)->uv[v->tfindex][0];
uv[1]= (tface+v->f)->uv[v->tfindex][1];
uv[2]= 0.0f;
ccgSubSurf_syncVert(ss, vhdl, uv, seam, &ssv);
}
}
}
/* create edges */
ehash = BLI_edgehash_new();
for (i=0; i<totface; i++) {
MFace *mf = &((MFace*) mface)[i];
int nverts= mf->v4? 4: 3;
CCGFace *origf= ccgSubSurf_getFace(origss, (CCGFaceHDL)i);
unsigned int *fv = &mf->v1;
get_face_uv_map_vert(vmap, mf, i, fverts);
for (j=0; j<nverts; j++) {
int v0 = (int)fverts[j];
int v1 = (int)fverts[(j+1)%nverts];
MVert *mv0 = mvert + *(fv+j);
MVert *mv1 = mvert + *(fv+((j+1)%nverts));
if (!BLI_edgehash_haskey(ehash, v0, v1)) {
CCGEdge *e, *orige= ccgSubSurf_getFaceEdge(origss, origf, j);
CCGEdgeHDL ehdl= (CCGEdgeHDL)(i*4 + j);
float crease;
if ((mv0->flag&mv1->flag) & ME_VERT_MERGED)
crease = creaseFactor;
else
crease = ccgSubSurf_getEdgeCrease(origss, orige);
ccgSubSurf_syncEdge(ss, ehdl, fverts[j], fverts[(j+1)%nverts], crease, &e);
BLI_edgehash_insert(ehash, v0, v1, NULL);
}
}
}
BLI_edgehash_free(ehash, NULL);
/* create faces */
for (i=0; i<totface; i++) {
MFace *mf = &((MFace*) mface)[i];
int nverts= mf->v4? 4: 3;
CCGFace *f;
get_face_uv_map_vert(vmap, mf, i, fverts);
ccgSubSurf_syncFace(ss, (CCGFaceHDL)i, nverts, fverts, &f);
}
free_uv_vert_map(vmap);
ccgSubSurf_processSync(ss);
return 1;
}
static void set_subsurf_uv(CCGSubSurf *ss, DerivedMesh *dm, DerivedMesh *result, int n)
{
CCGSubSurf *uvss;
CCGFace **faceMap;
MTFace *tf;
CCGFaceIterator *fi;
int index, gridSize, gridFaces, edgeSize, totface, x, y, S;
MTFace *dmtface = CustomData_get_layer_n(&dm->faceData, CD_MTFACE, n);
MTFace *tface = CustomData_get_layer_n(&result->faceData, CD_MTFACE, n);
if(!dmtface || !tface)
return;
/* create a CCGSubsurf from uv's */
uvss = _getSubSurf(NULL, ccgSubSurf_getSubdivisionLevels(ss), 0, 1, 0);
if(!ss_sync_from_uv(uvss, ss, dm, dmtface)) {
ccgSubSurf_free(uvss);
return;
}
/* get some info from CCGSubsurf */
totface = ccgSubSurf_getNumFaces(uvss);
edgeSize = ccgSubSurf_getEdgeSize(uvss);
gridSize = ccgSubSurf_getGridSize(uvss);
gridFaces = gridSize - 1;
/* make a map from original faces to CCGFaces */
faceMap = MEM_mallocN(totface*sizeof(*faceMap), "facemapuv");
fi = ccgSubSurf_getFaceIterator(uvss);
for(; !ccgFaceIterator_isStopped(fi); ccgFaceIterator_next(fi)) {
CCGFace *f = ccgFaceIterator_getCurrent(fi);
faceMap[(int) ccgSubSurf_getFaceFaceHandle(uvss, f)] = f;
}
ccgFaceIterator_free(fi);
/* load coordinates from uvss into tface */
tf= tface;
for(index = 0; index < totface; index++) {
CCGFace *f = faceMap[index];
int numVerts = ccgSubSurf_getFaceNumVerts(uvss, f);
for (S=0; S<numVerts; S++) {
VertData *faceGridData= ccgSubSurf_getFaceGridDataArray(uvss, f, S);
for(y = 0; y < gridFaces; y++) {
for(x = 0; x < gridFaces; x++) {
float *a = faceGridData[(y + 0)*gridSize + x + 0].co;
float *b = faceGridData[(y + 0)*gridSize + x + 1].co;
float *c = faceGridData[(y + 1)*gridSize + x + 1].co;
float *d = faceGridData[(y + 1)*gridSize + x + 0].co;
tf->uv[0][0] = a[0]; tf->uv[0][1] = a[1];
tf->uv[1][0] = d[0]; tf->uv[1][1] = d[1];
tf->uv[2][0] = c[0]; tf->uv[2][1] = c[1];
tf->uv[3][0] = b[0]; tf->uv[3][1] = b[1];
tf++;
}
}
}
}
ccgSubSurf_free(uvss);
MEM_freeN(faceMap);
}
#if 0
static unsigned int ss_getEdgeFlags(CCGSubSurf *ss, CCGEdge *e, int ssFromEditmesh, DispListMesh *dlm, MEdge *medge, MTFace *tface)
{
unsigned int flags = 0;
int N = ccgSubSurf_getEdgeNumFaces(ss, e);
if (!N) flags |= ME_LOOSEEDGE;
if (ssFromEditmesh) {
EditEdge *eed = ccgSubSurf_getEdgeEdgeHandle(ss, e);
flags |= ME_EDGEDRAW|ME_EDGERENDER;
if (eed->seam) {
flags |= ME_SEAM;
}
} else {
if (edgeIdx!=-1) {
MEdge *origMed = &medge[edgeIdx];
if (dlm) {
flags |= origMed->flag&~ME_EDGE_STEPINDEX;
} else {
flags |= (origMed->flag&ME_SEAM)|ME_EDGEDRAW|ME_EDGERENDER;
}
}
}
return flags;
}
#endif
/* face weighting */
static void calc_ss_weights(int gridFaces,
FaceVertWeight **qweight, FaceVertWeight **tweight)
{
FaceVertWeight *qw, *tw;
int x, y, j;
int numWeights = gridFaces * gridFaces;
*tweight = MEM_mallocN(sizeof(**tweight) * numWeights, "ssTriWeight");
*qweight = MEM_mallocN(sizeof(**qweight) * numWeights, "ssQuadWeight");
qw = *qweight;
tw = *tweight;
for (y = 0; y < gridFaces; y++) {
for (x = 0; x < gridFaces; x++) {
for (j = 0; j < 4; j++) {
int fx = x + (j == 2 || j == 3);
int fy = y + (j == 1 || j == 2);
float x_v = (float) fx / gridFaces;
float y_v = (float) fy / gridFaces;
float tx_v = (1.0f - x_v), ty_v = (1.0f - y_v);
float center = (1.0f / 3.0f) * tx_v * ty_v;
(*tw)[j][0] = center + 0.5f * tx_v * y_v;
(*tw)[j][2] = center + 0.5f * x_v * ty_v;
(*tw)[j][1] = 1.0f - (*tw)[j][0] - (*tw)[j][2];
(*tw)[j][3] = 0.0f;
tx_v *= 0.5f;
ty_v *= 0.5f;
(*qw)[j][3] = tx_v * ty_v;
(*qw)[j][0] = (*qw)[j][3] + tx_v * y_v;
(*qw)[j][2] = (*qw)[j][3] + x_v * ty_v;
(*qw)[j][1] = 1.0f - (*qw)[j][0] - (*qw)[j][2] - (*qw)[j][3];
}
tw++;
qw++;
}
}
}
DerivedMesh *ss_to_cdderivedmesh(CCGSubSurf *ss, int ssFromEditmesh,
int drawInteriorEdges, int useSubsurfUv,
DerivedMesh *dm)
{
DerivedMesh *result;
int edgeSize = ccgSubSurf_getEdgeSize(ss);
int gridSize = ccgSubSurf_getGridSize(ss);
int gridFaces = gridSize - 1;
int edgeBase, faceBase;
int i, j, k, S, x, y, index;
int vertBase = 0;
CCGVertIterator *vi;
CCGEdgeIterator *ei;
CCGFaceIterator *fi;
CCGFace **faceMap2;
CCGEdge **edgeMap2;
CCGVert **vertMap2;
int totvert, totedge, totface;
MVert *mvert;
MEdge *med;
MFace *mf;
int *origIndex;
FaceVertWeight *qweight, *tweight;
calc_ss_weights(gridFaces, &qweight, &tweight);
/* vert map */
totvert = ccgSubSurf_getNumVerts(ss);
vertMap2 = MEM_mallocN(totvert*sizeof(*vertMap2), "vertmap");
vi = ccgSubSurf_getVertIterator(ss);
for(; !ccgVertIterator_isStopped(vi); ccgVertIterator_next(vi)) {
CCGVert *v = ccgVertIterator_getCurrent(vi);
vertMap2[(int) ccgSubSurf_getVertVertHandle(ss, v)] = v;
}
ccgVertIterator_free(vi);
totedge = ccgSubSurf_getNumEdges(ss);
edgeMap2 = MEM_mallocN(totedge*sizeof(*edgeMap2), "edgemap");
ei = ccgSubSurf_getEdgeIterator(ss);
for(; !ccgEdgeIterator_isStopped(ei); ccgEdgeIterator_next(ei)) {
CCGEdge *e = ccgEdgeIterator_getCurrent(ei);
edgeMap2[(int) ccgSubSurf_getEdgeEdgeHandle(ss, e)] = e;
}
totface = ccgSubSurf_getNumFaces(ss);
faceMap2 = MEM_mallocN(totface*sizeof(*faceMap2), "facemap");
fi = ccgSubSurf_getFaceIterator(ss);
for(; !ccgFaceIterator_isStopped(fi); ccgFaceIterator_next(fi)) {
CCGFace *f = ccgFaceIterator_getCurrent(fi);
faceMap2[(int) ccgSubSurf_getFaceFaceHandle(ss, f)] = f;
}
ccgFaceIterator_free(fi);
if(dm) {
result = CDDM_from_template(dm, ccgSubSurf_getNumFinalVerts(ss),
ccgSubSurf_getNumFinalEdges(ss),
ccgSubSurf_getNumFinalFaces(ss));
} else {
result = CDDM_new(ccgSubSurf_getNumFinalVerts(ss),
ccgSubSurf_getNumFinalEdges(ss),
ccgSubSurf_getNumFinalFaces(ss));
}
// load verts
faceBase = i = 0;
mvert = CDDM_get_verts(result);
origIndex = result->getVertData(result, 0, CD_ORIGINDEX);
for(index = 0; index < totface; index++) {
CCGFace *f = faceMap2[index];
int x, y, S, numVerts = ccgSubSurf_getFaceNumVerts(ss, f);
FaceVertWeight *weight = (numVerts == 4) ? qweight : tweight;
int vertIdx[4];
for(S = 0; S < numVerts; S++) {
CCGVert *v = ccgSubSurf_getFaceVert(ss, f, S);
vertIdx[S] = (int)ccgSubSurf_getVertVertHandle(ss, v);
}
DM_interp_vert_data(dm, result, vertIdx, weight[0][0], numVerts, i);
VecCopyf(mvert->co, ccgSubSurf_getFaceCenterData(ss, f));
*origIndex = ORIGINDEX_NONE;
++mvert;
++origIndex;
i++;
for(S = 0; S < numVerts; S++) {
int prevS = (S - 1 + numVerts) % numVerts;
int nextS = (S + 1) % numVerts;
int otherS = (numVerts == 4) ? (S + 2) % numVerts : 3;
for(x = 1; x < gridFaces; x++) {
float w[4];
w[prevS] = weight[x][0][0];
w[S] = weight[x][0][1];
w[nextS] = weight[x][0][2];
w[otherS] = weight[x][0][3];
DM_interp_vert_data(dm, result, vertIdx, w, numVerts, i);
VecCopyf(mvert->co,
ccgSubSurf_getFaceGridEdgeData(ss, f, S, x));
*origIndex = ORIGINDEX_NONE;
++mvert;
++origIndex;
i++;
}
}
for(S = 0; S < numVerts; S++) {
int prevS = (S - 1 + numVerts) % numVerts;
int nextS = (S + 1) % numVerts;
int otherS = (numVerts == 4) ? (S + 2) % numVerts : 3;
for(y = 1; y < gridFaces; y++) {
for(x = 1; x < gridFaces; x++) {
float w[4];
w[prevS] = weight[y * gridFaces + x][0][0];
w[S] = weight[y * gridFaces + x][0][1];
w[nextS] = weight[y * gridFaces + x][0][2];
w[otherS] = weight[y * gridFaces + x][0][3];
DM_interp_vert_data(dm, result, vertIdx, w, numVerts, i);
VecCopyf(mvert->co,
ccgSubSurf_getFaceGridData(ss, f, S, x, y));
*origIndex = ORIGINDEX_NONE;
++mvert;
++origIndex;
i++;
}
}
}
*((int*)ccgSubSurf_getFaceUserData(ss, f)) = faceBase;
faceBase += 1 + numVerts * ((gridSize-2) + (gridSize-2) * (gridSize-2));
}
edgeBase = i;
for(index = 0; index < totedge; index++) {
CCGEdge *e = edgeMap2[index];
int x;
int vertIdx[2];
CCGVert *v;
v = ccgSubSurf_getEdgeVert0(ss, e);
vertIdx[0] = (int)ccgSubSurf_getVertVertHandle(ss, v);
v = ccgSubSurf_getEdgeVert1(ss, e);
vertIdx[1] = (int)ccgSubSurf_getVertVertHandle(ss, v);
for(x = 1; x < edgeSize - 1; x++) {
float w[2];
w[1] = (float) x / (edgeSize - 1);
w[0] = 1 - w[1];
DM_interp_vert_data(dm, result, vertIdx, w, 2, i);
VecCopyf(mvert->co, ccgSubSurf_getEdgeData(ss, e, x));
*origIndex = ORIGINDEX_NONE;
++mvert;
++origIndex;
i++;
}
*((int*)ccgSubSurf_getEdgeUserData(ss, e)) = edgeBase;
edgeBase += edgeSize-2;
}
vertBase = i;
for(index = 0; index < totvert; index++) {
CCGVert *v = vertMap2[index];
int vertIdx;
vertIdx = (int)ccgSubSurf_getVertVertHandle(ss, v);
DM_copy_vert_data(dm, result, vertIdx, i, 1);
VecCopyf(mvert->co, ccgSubSurf_getVertData(ss, v));
*((int*)ccgSubSurf_getVertUserData(ss, v)) = i;
*origIndex = ccgDM_getVertMapIndex(NULL, ss, v);
++mvert;
++origIndex;
i++;
}
// load edges
i = 0;
med = CDDM_get_edges(result);
origIndex = result->getEdgeData(result, 0, CD_ORIGINDEX);
for(index = 0; index < totface; index++) {
CCGFace *f = faceMap2[index];
int numVerts = ccgSubSurf_getFaceNumVerts(ss, f);
for(k = 0; k < numVerts; k++) {
for(x = 0; x < gridFaces; x++) {
if(drawInteriorEdges) med->flag = ME_EDGEDRAW | ME_EDGERENDER;
med->v1 = getFaceIndex(ss, f, k, x, 0, edgeSize, gridSize);
med->v2 = getFaceIndex(ss, f, k, x+1, 0, edgeSize, gridSize);
*origIndex = ORIGINDEX_NONE;
++med;
++origIndex;
i++;
}
for(x = 1; x < gridFaces; x++) {
for(y = 0; y < gridFaces; y++) {
if(drawInteriorEdges)
med->flag = ME_EDGEDRAW | ME_EDGERENDER;
med->v1 = getFaceIndex(ss, f, k, x, y, edgeSize, gridSize);
med->v2 = getFaceIndex(ss, f, k, x, y + 1,
edgeSize, gridSize);
*origIndex = ORIGINDEX_NONE;
++med;
++origIndex;
i++;
if(drawInteriorEdges)
med->flag = ME_EDGEDRAW | ME_EDGERENDER;
med->v1 = getFaceIndex(ss, f, k, y, x, edgeSize, gridSize);
med->v2 = getFaceIndex(ss, f, k, y + 1, x,
edgeSize, gridSize);
*origIndex = ORIGINDEX_NONE;
++med;
++origIndex;
i++;
}
}
}
}
for(index = 0; index < totedge; index++) {
CCGEdge *e = edgeMap2[index];
unsigned int flags = 0;
int edgeIdx = (int)ccgSubSurf_getEdgeEdgeHandle(ss, e);
if(!ccgSubSurf_getEdgeNumFaces(ss, e)) flags |= ME_LOOSEEDGE;
if(edgeIdx != -1 && dm) {
MEdge origMed;
dm->getEdge(dm, edgeIdx, &origMed);
flags |= origMed.flag;
}
for(x = 0; x < edgeSize - 1; x++) {
med->v1 = getEdgeIndex(ss, e, x, edgeSize);
med->v2 = getEdgeIndex(ss, e, x + 1, edgeSize);
med->flag = flags;
*origIndex = ccgDM_getEdgeMapIndex(NULL, ss, e);
++med;
++origIndex;
i++;
}
}
// load faces
i = 0;
mf = CDDM_get_faces(result);
origIndex = result->getFaceData(result, 0, CD_ORIGINDEX);
for(index = 0; index < totface; index++) {
CCGFace *f = faceMap2[index];
int numVerts = ccgSubSurf_getFaceNumVerts(ss, f);
int mat_nr;
int flag;
int mapIndex = ccgDM_getFaceMapIndex(NULL, ss, f);
int faceIdx = (int)ccgSubSurf_getFaceFaceHandle(ss, f);
if(!ssFromEditmesh) {
MFace origMFace;
dm->getFace(dm, faceIdx, &origMFace);
mat_nr = origMFace.mat_nr;
flag = origMFace.flag;
} else {
EditFace *ef = ccgSubSurf_getFaceFaceHandle(ss, f);
mat_nr = ef->mat_nr;
flag = ef->flag;
}
for(S = 0; S < numVerts; S++) {
FaceVertWeight *weight = (numVerts == 4) ? qweight : tweight;
for(y = 0; y < gridFaces; y++) {
for(x = 0; x < gridFaces; x++) {
mf->v1 = getFaceIndex(ss, f, S, x + 0, y + 0,
edgeSize, gridSize);
mf->v2 = getFaceIndex(ss, f, S, x + 0, y + 1,
edgeSize, gridSize);
mf->v3 = getFaceIndex(ss, f, S, x + 1, y + 1,
edgeSize, gridSize);
mf->v4 = getFaceIndex(ss, f, S, x + 1, y + 0,
edgeSize, gridSize);
mf->mat_nr = mat_nr;
mf->flag = flag;
if(dm) {
int prevS = (S - 1 + numVerts) % numVerts;
int nextS = (S + 1) % numVerts;
int otherS = (numVerts == 4) ? (S + 2) % numVerts : 3;
FaceVertWeight w;
for(j = 0; j < 4; ++j) {
w[j][prevS] = (*weight)[j][0];
w[j][S] = (*weight)[j][1];
w[j][nextS] = (*weight)[j][2];
w[j][otherS] = (*weight)[j][3];
}
DM_interp_face_data(dm, result, &faceIdx, NULL,
&w, 1, i);
weight++;
}
*origIndex = mapIndex;
++mf;
++origIndex;
i++;
}
}
}
}
MEM_freeN(faceMap2);
MEM_freeN(edgeMap2);
MEM_freeN(vertMap2);
MEM_freeN(tweight);
MEM_freeN(qweight);
if(useSubsurfUv) {
CustomData *fdata = &result->faceData;
CustomData *dmfdata = &dm->faceData;
int numlayer = CustomData_number_of_layers(fdata, CD_MTFACE);
int dmnumlayer = CustomData_number_of_layers(dmfdata, CD_MTFACE);
for (i=0; i<numlayer && i<dmnumlayer; i++)
set_subsurf_uv(ss, dm, result, i);
}
CDDM_calc_normals(result);
return result;
}
static void ss_sync_from_derivedmesh(CCGSubSurf *ss, DerivedMesh *dm,
float (*vertexCos)[3], int useFlatSubdiv)
{
float creaseFactor = (float) ccgSubSurf_getSubdivisionLevels(ss);
CCGVertHDL fVerts[4];
int totvert = dm->getNumVerts(dm);
int totedge = dm->getNumEdges(dm);
int totface = dm->getNumFaces(dm);
int i;
int *index;
MVert *mvert = dm->getVertArray(dm);
MEdge *medge = dm->getEdgeArray(dm);
MFace *mface = dm->getFaceArray(dm);
MVert *mv;
MEdge *me;
MFace *mf;
ccgSubSurf_initFullSync(ss);
mv = mvert;
index = (int *)dm->getVertDataArray(dm, CD_ORIGINDEX);
for(i = 0; i < totvert; i++, mv++, index++) {
CCGVert *v;
if(vertexCos) {
ccgSubSurf_syncVert(ss, (CCGVertHDL)i, vertexCos[i], 0, &v);
} else {
ccgSubSurf_syncVert(ss, (CCGVertHDL)i, mv->co, 0, &v);
}
((int*)ccgSubSurf_getVertUserData(ss, v))[1] = *index;
}
me = medge;
index = (int *)dm->getEdgeDataArray(dm, CD_ORIGINDEX);
for(i = 0; i < totedge; i++, me++, index++) {
CCGEdge *e;
float crease;
crease = useFlatSubdiv ? creaseFactor :
me->crease * creaseFactor / 255.0f;
ccgSubSurf_syncEdge(ss, (CCGEdgeHDL)i, (CCGVertHDL)me->v1,
(CCGVertHDL)me->v2, crease, &e);
((int*)ccgSubSurf_getEdgeUserData(ss, e))[1] = *index;
}
mf = mface;
index = (int *)dm->getFaceDataArray(dm, CD_ORIGINDEX);
for (i = 0; i < totface; i++, mf++, index++) {
CCGFace *f;
fVerts[0] = (CCGVertHDL) mf->v1;
fVerts[1] = (CCGVertHDL) mf->v2;
fVerts[2] = (CCGVertHDL) mf->v3;
fVerts[3] = (CCGVertHDL) mf->v4;
// this is very bad, means mesh is internally consistent.
// it is not really possible to continue without modifying
// other parts of code significantly to handle missing faces.
// since this really shouldn't even be possible we just bail.
if(ccgSubSurf_syncFace(ss, (CCGFaceHDL)i, fVerts[3] ? 4 : 3,
fVerts, &f) == eCCGError_InvalidValue) {
static int hasGivenError = 0;
if(!hasGivenError) {
error("Unrecoverable error in SubSurf calculation,"
" mesh is inconsistent.");
hasGivenError = 1;
}
return;
}
((int*)ccgSubSurf_getFaceUserData(ss, f))[1] = *index;
}
ccgSubSurf_processSync(ss);
}
/***/
static int ccgDM_getVertMapIndex(CCGDerivedMesh *ccgdm, CCGSubSurf *ss, CCGVert *v) {
return ((int*) ccgSubSurf_getVertUserData(ss, v))[1];
}
static int ccgDM_getEdgeMapIndex(CCGDerivedMesh *ccgdm, CCGSubSurf *ss, CCGEdge *e) {
return ((int*) ccgSubSurf_getEdgeUserData(ss, e))[1];
}
static int ccgDM_getFaceMapIndex(CCGDerivedMesh *ccgdm, CCGSubSurf *ss, CCGFace *f) {
return ((int*) ccgSubSurf_getFaceUserData(ss, f))[1];
}
static void ccgDM_getMinMax(DerivedMesh *dm, float min_r[3], float max_r[3]) {
CCGDerivedMesh *ccgdm = (CCGDerivedMesh*) dm;
CCGSubSurf *ss = ccgdm->ss;
CCGVertIterator *vi = ccgSubSurf_getVertIterator(ss);
CCGEdgeIterator *ei = ccgSubSurf_getEdgeIterator(ss);
CCGFaceIterator *fi = ccgSubSurf_getFaceIterator(ss);
int i, edgeSize = ccgSubSurf_getEdgeSize(ss);
int gridSize = ccgSubSurf_getGridSize(ss);
if (!ccgSubSurf_getNumVerts(ss))
min_r[0] = min_r[1] = min_r[2] = max_r[0] = max_r[1] = max_r[2] = 0.0;
for (; !ccgVertIterator_isStopped(vi); ccgVertIterator_next(vi)) {
CCGVert *v = ccgVertIterator_getCurrent(vi);
float *co = ccgSubSurf_getVertData(ss, v);
DO_MINMAX(co, min_r, max_r);
}
for (; !ccgEdgeIterator_isStopped(ei); ccgEdgeIterator_next(ei)) {
CCGEdge *e = ccgEdgeIterator_getCurrent(ei);
VertData *edgeData = ccgSubSurf_getEdgeDataArray(ss, e);
for (i=0; i<edgeSize; i++)
DO_MINMAX(edgeData[i].co, min_r, max_r);
}
for (; !ccgFaceIterator_isStopped(fi); ccgFaceIterator_next(fi)) {
CCGFace *f = ccgFaceIterator_getCurrent(fi);
int S, x, y, numVerts = ccgSubSurf_getFaceNumVerts(ss, f);
for (S=0; S<numVerts; S++) {
VertData *faceGridData = ccgSubSurf_getFaceGridDataArray(ss, f, S);
for (y=0; y<gridSize; y++)
for (x=0; x<gridSize; x++)
DO_MINMAX(faceGridData[y*gridSize + x].co, min_r, max_r);
}
}
ccgFaceIterator_free(fi);
ccgEdgeIterator_free(ei);
ccgVertIterator_free(vi);
}
static int ccgDM_getNumVerts(DerivedMesh *dm) {
CCGDerivedMesh *ccgdm = (CCGDerivedMesh*) dm;
return ccgSubSurf_getNumFinalVerts(ccgdm->ss);
}
static int ccgDM_getNumEdges(DerivedMesh *dm) {
CCGDerivedMesh *ccgdm = (CCGDerivedMesh*) dm;
return ccgSubSurf_getNumFinalEdges(ccgdm->ss);
}
static int ccgDM_getNumFaces(DerivedMesh *dm) {
CCGDerivedMesh *ccgdm = (CCGDerivedMesh*) dm;
return ccgSubSurf_getNumFinalFaces(ccgdm->ss);
}
static void ccgDM_getFinalVert(DerivedMesh *dm, int vertNum, MVert *mv)
{
CCGDerivedMesh *ccgdm = (CCGDerivedMesh*) dm;
CCGSubSurf *ss = ccgdm->ss;
int i;
memset(mv, 0, sizeof(*mv));
if(vertNum < ccgdm->edgeMap[0].startVert) {
/* this vert comes from face data */
int lastface = ccgSubSurf_getNumFaces(ss) - 1;
CCGFace *f;
int x, y, grid, numVerts;
int offset;
int gridSize = ccgSubSurf_getGridSize(ss);
int gridSideVerts;
int gridInternalVerts;
int gridSideEnd;
int gridInternalEnd;
i = 0;
while(i < lastface && vertNum >= ccgdm->faceMap[i + 1].startVert)
++i;
f = ccgdm->faceMap[i].face;
numVerts = ccgSubSurf_getFaceNumVerts(ss, f);
gridSideVerts = gridSize - 2;
gridInternalVerts = gridSideVerts * gridSideVerts;
gridSideEnd = 1 + numVerts * gridSideVerts;
gridInternalEnd = gridSideEnd + numVerts * gridInternalVerts;
offset = vertNum - ccgdm->faceMap[i].startVert;
if(offset < 1) {
VecCopyf(mv->co, ccgSubSurf_getFaceCenterData(ss, f));
} else if(offset < gridSideEnd) {
offset -= 1;
grid = offset / gridSideVerts;
x = offset % gridSideVerts + 1;
VecCopyf(mv->co, ccgSubSurf_getFaceGridEdgeData(ss, f, grid, x));
} else if(offset < gridInternalEnd) {
offset -= gridSideEnd;
grid = offset / gridInternalVerts;
offset %= gridInternalVerts;
y = offset / gridSideVerts + 1;
x = offset % gridSideVerts + 1;
VecCopyf(mv->co, ccgSubSurf_getFaceGridData(ss, f, grid, x, y));
}
} else if(vertNum < ccgdm->vertMap[0].startVert) {
/* this vert comes from edge data */
CCGEdge *e;
int lastedge = ccgSubSurf_getNumEdges(ss) - 1;
int x;
i = 0;
while(i < lastedge && vertNum >= ccgdm->edgeMap[i + 1].startVert)
++i;
e = ccgdm->edgeMap[i].edge;
x = vertNum - ccgdm->edgeMap[i].startVert + 1;
VecCopyf(mv->co, ccgSubSurf_getEdgeData(ss, e, x));
} else {
/* this vert comes from vert data */
CCGVert *v;
i = vertNum - ccgdm->vertMap[0].startVert;
v = ccgdm->vertMap[i].vert;
VecCopyf(mv->co, ccgSubSurf_getVertData(ss, v));
}
}
static void ccgDM_getFinalEdge(DerivedMesh *dm, int edgeNum, MEdge *med)
{
CCGDerivedMesh *ccgdm = (CCGDerivedMesh*) dm;
CCGSubSurf *ss = ccgdm->ss;
int i;
memset(med, 0, sizeof(*med));
if(edgeNum < ccgdm->edgeMap[0].startEdge) {
/* this edge comes from face data */
int lastface = ccgSubSurf_getNumFaces(ss) - 1;
CCGFace *f;
int x, y, grid, numVerts;
int offset;
int gridSize = ccgSubSurf_getGridSize(ss);
int edgeSize = ccgSubSurf_getEdgeSize(ss);
int gridSideEdges;
int gridInternalEdges;
i = 0;
while(i < lastface && edgeNum >= ccgdm->faceMap[i + 1].startEdge)
++i;
f = ccgdm->faceMap[i].face;
numVerts = ccgSubSurf_getFaceNumVerts(ss, f);
gridSideEdges = gridSize - 1;
gridInternalEdges = (gridSideEdges - 1) * gridSideEdges * 2;
offset = edgeNum - ccgdm->faceMap[i].startEdge;
grid = offset / (gridSideEdges + gridInternalEdges);
offset %= (gridSideEdges + gridInternalEdges);
if(offset < gridSideEdges) {
x = offset;
med->v1 = getFaceIndex(ss, f, grid, x, 0, edgeSize, gridSize);
med->v2 = getFaceIndex(ss, f, grid, x+1, 0, edgeSize, gridSize);
} else {
offset -= gridSideEdges;
x = (offset / 2) / gridSideEdges + 1;
y = (offset / 2) % gridSideEdges;
if(offset % 2 == 0) {
med->v1 = getFaceIndex(ss, f, grid, x, y, edgeSize, gridSize);
med->v2 = getFaceIndex(ss, f, grid, x, y+1, edgeSize, gridSize);
} else {
med->v1 = getFaceIndex(ss, f, grid, y, x, edgeSize, gridSize);
med->v2 = getFaceIndex(ss, f, grid, y+1, x, edgeSize, gridSize);
}
}
} else {
/* this vert comes from edge data */
CCGEdge *e;
int edgeSize = ccgSubSurf_getEdgeSize(ss);
int x;
unsigned int flags = 0;
i = (edgeNum - ccgdm->edgeMap[0].startEdge) / (edgeSize - 1);
e = ccgdm->edgeMap[i].edge;
if(!ccgSubSurf_getEdgeNumFaces(ss, e)) flags |= ME_LOOSEEDGE;
x = edgeNum - ccgdm->edgeMap[i].startEdge;
med->v1 = getEdgeIndex(ss, e, x, edgeSize);
med->v2 = getEdgeIndex(ss, e, x+1, edgeSize);
if(ccgdm->me) {
int edgeIdx = (int) ccgSubSurf_getEdgeEdgeHandle(ss, e);
if(edgeIdx!=-1) {
MEdge *medge = ccgdm->me->medge;
MEdge *origMed = &medge[edgeIdx];
flags |= (origMed->flag & (ME_SEAM | ME_SHARP))
| ME_EDGEDRAW | ME_EDGERENDER;
}
} else {
int *edgeFlag = dm->getEdgeData(dm, edgeNum, CD_FLAGS);
if(edgeFlag)
flags |= (*edgeFlag & (ME_SEAM | ME_SHARP))
| ME_EDGEDRAW | ME_EDGERENDER;
else
flags |= ME_EDGEDRAW | ME_EDGERENDER;
}
med->flag = flags;
}
}
static void ccgDM_getFinalFace(DerivedMesh *dm, int faceNum, MFace *mf)
{
CCGDerivedMesh *ccgdm = (CCGDerivedMesh*) dm;
CCGSubSurf *ss = ccgdm->ss;
int gridSize = ccgSubSurf_getGridSize(ss);
int edgeSize = ccgSubSurf_getEdgeSize(ss);
int gridSideEdges = gridSize - 1;
int gridFaces = gridSideEdges * gridSideEdges;
int i;
CCGFace *f;
int numVerts;
int offset;
int grid;
int x, y;
int lastface = ccgSubSurf_getNumFaces(ss) - 1;
int *faceFlags = dm->getFaceDataArray(dm, CD_FLAGS);
memset(mf, 0, sizeof(*mf));
i = 0;
while(i < lastface && faceNum >= ccgdm->faceMap[i + 1].startFace)
++i;
f = ccgdm->faceMap[i].face;
numVerts = ccgSubSurf_getFaceNumVerts(ss, f);
offset = faceNum - ccgdm->faceMap[i].startFace;
grid = offset / gridFaces;
offset %= gridFaces;
y = offset / gridSideEdges;
x = offset % gridSideEdges;
mf->v1 = getFaceIndex(ss, f, grid, x+0, y+0, edgeSize, gridSize);
mf->v2 = getFaceIndex(ss, f, grid, x+0, y+1, edgeSize, gridSize);
mf->v3 = getFaceIndex(ss, f, grid, x+1, y+1, edgeSize, gridSize);
mf->v4 = getFaceIndex(ss, f, grid, x+1, y+0, edgeSize, gridSize);
if(faceFlags) mf->flag = faceFlags[i];
else mf->flag = ME_SMOOTH;
}
static void ccgDM_copyFinalVertArray(DerivedMesh *dm, MVert *mvert)
{
CCGDerivedMesh *ccgdm = (CCGDerivedMesh*) dm;
CCGSubSurf *ss = ccgdm->ss;
int index;
int totvert, totedge, totface;
int gridSize = ccgSubSurf_getGridSize(ss);
int edgeSize = ccgSubSurf_getEdgeSize(ss);
int i = 0;
totface = ccgSubSurf_getNumFaces(ss);
for(index = 0; index < totface; index++) {
CCGFace *f = ccgdm->faceMap[index].face;
int x, y, S, numVerts = ccgSubSurf_getFaceNumVerts(ss, f);
VecCopyf(mvert[i++].co, ccgSubSurf_getFaceCenterData(ss, f));
for(S = 0; S < numVerts; S++) {
for(x = 1; x < gridSize - 1; x++) {
VecCopyf(mvert[i++].co,
ccgSubSurf_getFaceGridEdgeData(ss, f, S, x));
}
}
for(S = 0; S < numVerts; S++) {
for(y = 1; y < gridSize - 1; y++) {
for(x = 1; x < gridSize - 1; x++) {
VecCopyf(mvert[i++].co,
ccgSubSurf_getFaceGridData(ss, f, S, x, y));
}
}
}
}
totedge = ccgSubSurf_getNumEdges(ss);
for(index = 0; index < totedge; index++) {
CCGEdge *e = ccgdm->edgeMap[index].edge;
int x;
for(x = 1; x < edgeSize - 1; x++) {
VecCopyf(mvert[i++].co, ccgSubSurf_getEdgeData(ss, e, x));
}
}
totvert = ccgSubSurf_getNumVerts(ss);
for(index = 0; index < totvert; index++) {
CCGVert *v = ccgdm->vertMap[index].vert;
VecCopyf(mvert[i].co, ccgSubSurf_getVertData(ss, v));
i++;
}
}
static void ccgDM_copyFinalEdgeArray(DerivedMesh *dm, MEdge *medge)
{
CCGDerivedMesh *ccgdm = (CCGDerivedMesh*) dm;
CCGSubSurf *ss = ccgdm->ss;
int index;
int totedge, totface;
int gridSize = ccgSubSurf_getGridSize(ss);
int edgeSize = ccgSubSurf_getEdgeSize(ss);
int i = 0;
MEdge *origEdges = NULL;
int *edgeFlags = dm->getEdgeDataArray(dm, CD_FLAGS);
if(ccgdm->me) origEdges = ccgdm->me->medge;
totface = ccgSubSurf_getNumFaces(ss);
for(index = 0; index < totface; index++) {
CCGFace *f = ccgdm->faceMap[index].face;
int x, y, S, numVerts = ccgSubSurf_getFaceNumVerts(ss, f);
for(S = 0; S < numVerts; S++) {
for(x = 0; x < gridSize - 1; x++) {
MEdge *med = &medge[i];
if(ccgdm->drawInteriorEdges)
med->flag = ME_EDGEDRAW | ME_EDGERENDER;
med->v1 = getFaceIndex(ss, f, S, x, 0, edgeSize, gridSize);
med->v2 = getFaceIndex(ss, f, S, x + 1, 0, edgeSize, gridSize);
i++;
}
for(x = 1; x < gridSize - 1; x++) {
for(y = 0; y < gridSize - 1; y++) {
MEdge *med;
med = &medge[i];
if(ccgdm->drawInteriorEdges)
med->flag = ME_EDGEDRAW | ME_EDGERENDER;
med->v1 = getFaceIndex(ss, f, S, x, y,
edgeSize, gridSize);
med->v2 = getFaceIndex(ss, f, S, x, y + 1,
edgeSize, gridSize);
i++;
med = &medge[i];
if(ccgdm->drawInteriorEdges)
med->flag = ME_EDGEDRAW | ME_EDGERENDER;
med->v1 = getFaceIndex(ss, f, S, y, x,
edgeSize, gridSize);
med->v2 = getFaceIndex(ss, f, S, y + 1, x,
edgeSize, gridSize);
i++;
}
}
}
}
totedge = ccgSubSurf_getNumEdges(ss);
for(index = 0; index < totedge; index++) {
CCGEdge *e = ccgdm->edgeMap[index].edge;
unsigned int flags = 0;
int x;
int edgeIdx = (int)ccgSubSurf_getEdgeEdgeHandle(ss, e);
if(!ccgSubSurf_getEdgeNumFaces(ss, e)) flags |= ME_LOOSEEDGE;
if(origEdges){
if(edgeIdx != -1) {
MEdge *origMed = &origEdges[edgeIdx];
flags |= (origMed->flag & (ME_SEAM | ME_SHARP))
| ME_EDGEDRAW | ME_EDGERENDER;
}
} else if(edgeFlags) {
if(edgeIdx != -1) {
flags |= (edgeFlags[i] & (ME_SEAM | ME_SHARP))
| ME_EDGEDRAW | ME_EDGERENDER;
}
} else {
flags |= ME_EDGEDRAW | ME_EDGERENDER;
}
for(x = 0; x < edgeSize - 1; x++) {
MEdge *med = &medge[i];
med->v1 = getEdgeIndex(ss, e, x, edgeSize);
med->v2 = getEdgeIndex(ss, e, x + 1, edgeSize);
med->flag = flags;
i++;
}
}
}
static void ccgDM_copyFinalFaceArray(DerivedMesh *dm, MFace *mface)
{
CCGDerivedMesh *ccgdm = (CCGDerivedMesh*) dm;
CCGSubSurf *ss = ccgdm->ss;
int index;
int totface;
int gridSize = ccgSubSurf_getGridSize(ss);
int edgeSize = ccgSubSurf_getEdgeSize(ss);
int i = 0;
MFace *origFaces = NULL;
int *faceFlags = dm->getFaceDataArray(dm, CD_FLAGS);
if(ccgdm->me) origFaces = ccgdm->me->mface;
totface = ccgSubSurf_getNumFaces(ss);
for(index = 0; index < totface; index++) {
CCGFace *f = ccgdm->faceMap[index].face;
int x, y, S, numVerts = ccgSubSurf_getFaceNumVerts(ss, f);
int mat_nr = 0;
int flag = ME_SMOOTH; /* assume face is smooth by default */
if(!faceFlags) {
if(origFaces) {
int origIdx = (int) ccgSubSurf_getFaceFaceHandle(ss, f);
MFace *origMFace = &origFaces[origIdx];
mat_nr = origMFace->mat_nr;
flag = origMFace->flag;
}
}
for(S = 0; S < numVerts; S++) {
for(y = 0; y < gridSize - 1; y++) {
for(x = 0; x < gridSize - 1; x++) {
MFace *mf = &mface[i];
mf->v1 = getFaceIndex(ss, f, S, x + 0, y + 0,
edgeSize, gridSize);
mf->v2 = getFaceIndex(ss, f, S, x + 0, y + 1,
edgeSize, gridSize);
mf->v3 = getFaceIndex(ss, f, S, x + 1, y + 1,
edgeSize, gridSize);
mf->v4 = getFaceIndex(ss, f, S, x + 1, y + 0,
edgeSize, gridSize);
mf->mat_nr = mat_nr;
if(faceFlags) mf->flag = faceFlags[index];
else mf->flag = flag;
i++;
}
}
}
}
}
static void ccgdm_getVertCos(DerivedMesh *dm, float (*cos)[3]) {
CCGDerivedMesh *ccgdm = (CCGDerivedMesh*) dm;
CCGSubSurf *ss = ccgdm->ss;
int edgeSize = ccgSubSurf_getEdgeSize(ss);
int gridSize = ccgSubSurf_getGridSize(ss);
int i;
CCGVertIterator *vi;
CCGEdgeIterator *ei;
CCGFaceIterator *fi;
CCGFace **faceMap2;
CCGEdge **edgeMap2;
CCGVert **vertMap2;
int index, totvert, totedge, totface;
totvert = ccgSubSurf_getNumVerts(ss);
vertMap2 = MEM_mallocN(totvert*sizeof(*vertMap2), "vertmap");
vi = ccgSubSurf_getVertIterator(ss);
for (; !ccgVertIterator_isStopped(vi); ccgVertIterator_next(vi)) {
CCGVert *v = ccgVertIterator_getCurrent(vi);
vertMap2[(int) ccgSubSurf_getVertVertHandle(ss, v)] = v;
}
ccgVertIterator_free(vi);
totedge = ccgSubSurf_getNumEdges(ss);
edgeMap2 = MEM_mallocN(totedge*sizeof(*edgeMap2), "edgemap");
ei = ccgSubSurf_getEdgeIterator(ss);
for (i=0; !ccgEdgeIterator_isStopped(ei); i++,ccgEdgeIterator_next(ei)) {
CCGEdge *e = ccgEdgeIterator_getCurrent(ei);
edgeMap2[(int) ccgSubSurf_getEdgeEdgeHandle(ss, e)] = e;
}
totface = ccgSubSurf_getNumFaces(ss);
faceMap2 = MEM_mallocN(totface*sizeof(*faceMap2), "facemap");
fi = ccgSubSurf_getFaceIterator(ss);
for (; !ccgFaceIterator_isStopped(fi); ccgFaceIterator_next(fi)) {
CCGFace *f = ccgFaceIterator_getCurrent(fi);
faceMap2[(int) ccgSubSurf_getFaceFaceHandle(ss, f)] = f;
}
ccgFaceIterator_free(fi);
i = 0;
for (index=0; index<totface; index++) {
CCGFace *f = faceMap2[index];
int x, y, S, numVerts = ccgSubSurf_getFaceNumVerts(ss, f);
VecCopyf(cos[i++], ccgSubSurf_getFaceCenterData(ss, f));
for (S=0; S<numVerts; S++) {
for (x=1; x<gridSize-1; x++) {
VecCopyf(cos[i++], ccgSubSurf_getFaceGridEdgeData(ss, f, S, x));
}
}
for (S=0; S<numVerts; S++) {
for (y=1; y<gridSize-1; y++) {
for (x=1; x<gridSize-1; x++) {
VecCopyf(cos[i++], ccgSubSurf_getFaceGridData(ss, f, S, x, y));
}
}
}
}
for (index=0; index<totedge; index++) {
CCGEdge *e= edgeMap2[index];
int x;
for (x=1; x<edgeSize-1; x++) {
VecCopyf(cos[i++], ccgSubSurf_getEdgeData(ss, e, x));
}
}
for (index=0; index<totvert; index++) {
CCGVert *v = vertMap2[index];
VecCopyf(cos[i++], ccgSubSurf_getVertData(ss, v));
}
MEM_freeN(vertMap2);
MEM_freeN(edgeMap2);
MEM_freeN(faceMap2);
}
static void ccgDM_foreachMappedVert(DerivedMesh *dm, void (*func)(void *userData, int index, float *co, float *no_f, short *no_s), void *userData) {
CCGDerivedMesh *ccgdm = (CCGDerivedMesh*) dm;
CCGVertIterator *vi = ccgSubSurf_getVertIterator(ccgdm->ss);
for (; !ccgVertIterator_isStopped(vi); ccgVertIterator_next(vi)) {
CCGVert *v = ccgVertIterator_getCurrent(vi);
VertData *vd = ccgSubSurf_getVertData(ccgdm->ss, v);
int index = ccgDM_getVertMapIndex(ccgdm, ccgdm->ss, v);
if (index!=-1)
func(userData, index, vd->co, vd->no, NULL);
}
ccgVertIterator_free(vi);
}
static void ccgDM_foreachMappedEdge(DerivedMesh *dm, void (*func)(void *userData, int index, float *v0co, float *v1co), void *userData) {
CCGDerivedMesh *ccgdm = (CCGDerivedMesh*) dm;
CCGSubSurf *ss = ccgdm->ss;
CCGEdgeIterator *ei = ccgSubSurf_getEdgeIterator(ss);
int i, edgeSize = ccgSubSurf_getEdgeSize(ss);
for (; !ccgEdgeIterator_isStopped(ei); ccgEdgeIterator_next(ei)) {
CCGEdge *e = ccgEdgeIterator_getCurrent(ei);
VertData *edgeData = ccgSubSurf_getEdgeDataArray(ss, e);
int index = ccgDM_getEdgeMapIndex(ccgdm, ss, e);
if (index!=-1) {
for (i=0; i<edgeSize-1; i++)
func(userData, index, edgeData[i].co, edgeData[i+1].co);
}
}
ccgEdgeIterator_free(ei);
}
static void ccgDM_drawVerts(DerivedMesh *dm) {
CCGDerivedMesh *ccgdm = (CCGDerivedMesh*) dm;
CCGSubSurf *ss = ccgdm->ss;
int edgeSize = ccgSubSurf_getEdgeSize(ss);
int gridSize = ccgSubSurf_getGridSize(ss);
CCGVertIterator *vi;
CCGEdgeIterator *ei;
CCGFaceIterator *fi;
glBegin(GL_POINTS);
vi = ccgSubSurf_getVertIterator(ss);
for (; !ccgVertIterator_isStopped(vi); ccgVertIterator_next(vi)) {
CCGVert *v = ccgVertIterator_getCurrent(vi);
glVertex3fv(ccgSubSurf_getVertData(ss, v));
}
ccgVertIterator_free(vi);
ei = ccgSubSurf_getEdgeIterator(ss);
for (; !ccgEdgeIterator_isStopped(ei); ccgEdgeIterator_next(ei)) {
CCGEdge *e = ccgEdgeIterator_getCurrent(ei);
int x;
for (x=1; x<edgeSize-1; x++)
glVertex3fv(ccgSubSurf_getEdgeData(ss, e, x));
}
ccgEdgeIterator_free(ei);
fi = ccgSubSurf_getFaceIterator(ss);
for (; !ccgFaceIterator_isStopped(fi); ccgFaceIterator_next(fi)) {
CCGFace *f = ccgFaceIterator_getCurrent(fi);
int x, y, S, numVerts = ccgSubSurf_getFaceNumVerts(ss, f);
glVertex3fv(ccgSubSurf_getFaceCenterData(ss, f));
for (S=0; S<numVerts; S++)
for (x=1; x<gridSize-1; x++)
glVertex3fv(ccgSubSurf_getFaceGridEdgeData(ss, f, S, x));
for (S=0; S<numVerts; S++)
for (y=1; y<gridSize-1; y++)
for (x=1; x<gridSize-1; x++)
glVertex3fv(ccgSubSurf_getFaceGridData(ss, f, S, x, y));
}
ccgFaceIterator_free(fi);
glEnd();
}
static void ccgDM_drawEdges(DerivedMesh *dm, int drawLooseEdges) {
CCGDerivedMesh *ccgdm = (CCGDerivedMesh*) dm;
CCGSubSurf *ss = ccgdm->ss;
CCGEdgeIterator *ei = ccgSubSurf_getEdgeIterator(ss);
CCGFaceIterator *fi = ccgSubSurf_getFaceIterator(ss);
int i, edgeSize = ccgSubSurf_getEdgeSize(ss);
int gridSize = ccgSubSurf_getGridSize(ss);
int useAging;
ccgSubSurf_getUseAgeCounts(ss, &useAging, NULL, NULL, NULL);
for (; !ccgEdgeIterator_isStopped(ei); ccgEdgeIterator_next(ei)) {
CCGEdge *e = ccgEdgeIterator_getCurrent(ei);
VertData *edgeData = ccgSubSurf_getEdgeDataArray(ss, e);
if (!drawLooseEdges && !ccgSubSurf_getEdgeNumFaces(ss, e))
continue;
if (useAging && !(G.f&G_BACKBUFSEL)) {
int ageCol = 255-ccgSubSurf_getEdgeAge(ss, e)*4;
glColor3ub(0, ageCol>0?ageCol:0, 0);
}
glBegin(GL_LINE_STRIP);
for (i=0; i<edgeSize-1; i++) {
glVertex3fv(edgeData[i].co);
glVertex3fv(edgeData[i+1].co);
}
glEnd();
}
if (useAging && !(G.f&G_BACKBUFSEL)) {
glColor3ub(0, 0, 0);
}
if (ccgdm->drawInteriorEdges) {
for (; !ccgFaceIterator_isStopped(fi); ccgFaceIterator_next(fi)) {
CCGFace *f = ccgFaceIterator_getCurrent(fi);
int S, x, y, numVerts = ccgSubSurf_getFaceNumVerts(ss, f);
for (S=0; S<numVerts; S++) {
VertData *faceGridData = ccgSubSurf_getFaceGridDataArray(ss, f, S);
glBegin(GL_LINE_STRIP);
for (x=0; x<gridSize; x++)
glVertex3fv(faceGridData[x].co);
glEnd();
for (y=1; y<gridSize-1; y++) {
glBegin(GL_LINE_STRIP);
for (x=0; x<gridSize; x++)
glVertex3fv(faceGridData[y*gridSize + x].co);
glEnd();
}
for (x=1; x<gridSize-1; x++) {
glBegin(GL_LINE_STRIP);
for (y=0; y<gridSize; y++)
glVertex3fv(faceGridData[y*gridSize + x].co);
glEnd();
}
}
}
}
ccgFaceIterator_free(fi);
ccgEdgeIterator_free(ei);
}
static void ccgDM_drawLooseEdges(DerivedMesh *dm) {
CCGDerivedMesh *ccgdm = (CCGDerivedMesh*) dm;
CCGSubSurf *ss = ccgdm->ss;
CCGEdgeIterator *ei = ccgSubSurf_getEdgeIterator(ss);
int i, edgeSize = ccgSubSurf_getEdgeSize(ss);
for (; !ccgEdgeIterator_isStopped(ei); ccgEdgeIterator_next(ei)) {
CCGEdge *e = ccgEdgeIterator_getCurrent(ei);
VertData *edgeData = ccgSubSurf_getEdgeDataArray(ss, e);
if (!ccgSubSurf_getEdgeNumFaces(ss, e)) {
glBegin(GL_LINE_STRIP);
for (i=0; i<edgeSize-1; i++) {
glVertex3fv(edgeData[i].co);
glVertex3fv(edgeData[i+1].co);
}
glEnd();
}
}
ccgEdgeIterator_free(ei);
}
/* Only used by non-editmesh types */
static void ccgDM_drawFacesSolid(DerivedMesh *dm, int (*setMaterial)(int)) {
CCGDerivedMesh *ccgdm = (CCGDerivedMesh*) dm;
CCGSubSurf *ss = ccgdm->ss;
CCGFaceIterator *fi = ccgSubSurf_getFaceIterator(ss);
int gridSize = ccgSubSurf_getGridSize(ss);
MFace *mface = ccgdm->me->mface;
for (; !ccgFaceIterator_isStopped(fi); ccgFaceIterator_next(fi)) {
CCGFace *f = ccgFaceIterator_getCurrent(fi);
int S, x, y, numVerts = ccgSubSurf_getFaceNumVerts(ss, f);
int index = (int) ccgSubSurf_getFaceFaceHandle(ss, f);
MFace *mf = &mface[index];
if (!setMaterial(mf->mat_nr+1))
continue;
glShadeModel((mf->flag&ME_SMOOTH)?GL_SMOOTH:GL_FLAT);
for (S=0; S<numVerts; S++) {
VertData *faceGridData = ccgSubSurf_getFaceGridDataArray(ss, f, S);
if (mf->flag&ME_SMOOTH) {
for (y=0; y<gridSize-1; y++) {
glBegin(GL_QUAD_STRIP);
for (x=0; x<gridSize; x++) {
VertData *a = &faceGridData[(y+0)*gridSize + x];
VertData *b = &faceGridData[(y+1)*gridSize + x];
glNormal3fv(a->no);
glVertex3fv(a->co);
glNormal3fv(b->no);
glVertex3fv(b->co);
}
glEnd();
}
} else {
glBegin(GL_QUADS);
for (y=0; y<gridSize-1; y++) {
for (x=0; x<gridSize-1; x++) {
float *a = faceGridData[(y+0)*gridSize + x].co;
float *b = faceGridData[(y+0)*gridSize + x + 1].co;
float *c = faceGridData[(y+1)*gridSize + x + 1].co;
float *d = faceGridData[(y+1)*gridSize + x].co;
float a_cX = c[0]-a[0], a_cY = c[1]-a[1], a_cZ = c[2]-a[2];
float b_dX = d[0]-b[0], b_dY = d[1]-b[1], b_dZ = d[2]-b[2];
float no[3];
no[0] = b_dY*a_cZ - b_dZ*a_cY;
no[1] = b_dZ*a_cX - b_dX*a_cZ;
no[2] = b_dX*a_cY - b_dY*a_cX;
glNormal3fv(no);
glVertex3fv(d);
glVertex3fv(c);
glVertex3fv(b);
glVertex3fv(a);
}
}
glEnd();
}
}
}
ccgFaceIterator_free(fi);
}
static void ccgDM_drawFacesColored(DerivedMesh *dm, int useTwoSided, unsigned char *col1, unsigned char *col2) {
CCGDerivedMesh *ccgdm = (CCGDerivedMesh*) dm;
CCGSubSurf *ss = ccgdm->ss;
CCGFaceIterator *fi = ccgSubSurf_getFaceIterator(ss);
int gridSize = ccgSubSurf_getGridSize(ss);
unsigned char *cp1, *cp2;
int useTwoSide=1;
cp1= col1;
if(col2) {
cp2= col2;
} else {
cp2= NULL;
useTwoSide= 0;
}
glShadeModel(GL_SMOOTH);
if(col1 && col2)
glEnable(GL_CULL_FACE);
glBegin(GL_QUADS);
for (; !ccgFaceIterator_isStopped(fi); ccgFaceIterator_next(fi)) {
CCGFace *f = ccgFaceIterator_getCurrent(fi);
int S, x, y, numVerts = ccgSubSurf_getFaceNumVerts(ss, f);
for (S=0; S<numVerts; S++) {
VertData *faceGridData = ccgSubSurf_getFaceGridDataArray(ss, f, S);
for (y=0; y<gridSize-1; y++) {
for (x=0; x<gridSize-1; x++) {
float *a = faceGridData[(y+0)*gridSize + x].co;
float *b = faceGridData[(y+0)*gridSize + x + 1].co;
float *c = faceGridData[(y+1)*gridSize + x + 1].co;
float *d = faceGridData[(y+1)*gridSize + x].co;
glColor3ub(cp1[3], cp1[2], cp1[1]);
glVertex3fv(d);
glColor3ub(cp1[7], cp1[6], cp1[5]);
glVertex3fv(c);
glColor3ub(cp1[11], cp1[10], cp1[9]);
glVertex3fv(b);
glColor3ub(cp1[15], cp1[14], cp1[13]);
glVertex3fv(a);
if (useTwoSide) {
glColor3ub(cp2[15], cp2[14], cp2[13]);
glVertex3fv(a);
glColor3ub(cp2[11], cp2[10], cp2[9]);
glVertex3fv(b);
glColor3ub(cp2[7], cp2[6], cp2[5]);
glVertex3fv(c);
glColor3ub(cp2[3], cp2[2], cp2[1]);
glVertex3fv(d);
}
if (cp2) cp2+=16;
cp1+=16;
}
}
}
}
glEnd();
ccgFaceIterator_free(fi);
}
static void ccgDM_drawFacesTex(DerivedMesh *dm, int (*setDrawParams)(MTFace *tface, MCol *mcol, int matnr))
{
/* unimplemented, no textures in editmode anyway */
}
static void ccgDM_drawMappedFacesTex(DerivedMesh *dm, int (*setDrawParams)(void *userData, int index), void *userData)
{
/* unfinished code, no textures in editmode anyway */
CCGDerivedMesh *ccgdm = (CCGDerivedMesh*) dm;
CCGSubSurf *ss = ccgdm->ss;
CCGFaceIterator *fi = ccgSubSurf_getFaceIterator(ss);
int gridSize = ccgSubSurf_getGridSize(ss);
MFace *mface = ccgdm->me->mface;
MCol *mcol = ccgdm->me->mcol;
// float uv[4][2];
// float col[4][3];
glBegin(GL_QUADS);
for (; !ccgFaceIterator_isStopped(fi); ccgFaceIterator_next(fi)) {
CCGFace *f = ccgFaceIterator_getCurrent(fi);
int S, x, y, numVerts = ccgSubSurf_getFaceNumVerts(ss, f);
int index = (int) ccgSubSurf_getFaceFaceHandle(ss, f);
MFace *mf = &mface[index];
unsigned char *cp= NULL;
int findex = ccgDM_getFaceMapIndex(ccgdm, ss, f);
int flag = (findex == -1)? 0: setDrawParams(userData, findex);
if (flag==0)
continue;
else if (flag==1 && mcol)
cp= (unsigned char*) &mcol[index*4];
for (S=0; S<numVerts; S++) {
VertData *faceGridData = ccgSubSurf_getFaceGridDataArray(ss, f, S);
for (y=0; y<gridSize-1; y++) {
for (x=0; x<gridSize-1; x++) {
VertData *a = &faceGridData[(y+0)*gridSize + x + 0];
VertData *b = &faceGridData[(y+0)*gridSize + x + 1];
VertData *c = &faceGridData[(y+1)*gridSize + x + 1];
VertData *d = &faceGridData[(y+1)*gridSize + x + 0];
if (!(mf->flag&ME_SMOOTH)) {
float a_cX = c->co[0]-a->co[0], a_cY = c->co[1]-a->co[1], a_cZ = c->co[2]-a->co[2];
float b_dX = d->co[0]-b->co[0], b_dY = d->co[1]-b->co[1], b_dZ = d->co[2]-b->co[2];
float no[3];
no[0] = b_dY*a_cZ - b_dZ*a_cY;
no[1] = b_dZ*a_cX - b_dX*a_cZ;
no[2] = b_dX*a_cY - b_dY*a_cX;
glNormal3fv(no);
}
// if (tf) glTexCoord2fv(tf->uv[0]);
// if (cp) glColor3ub(cp[3], cp[2], cp[1]);
// if (mf->flag&ME_SMOOTH) glNormal3sv(mvert[mf->v1].no);
// glVertex3fv(mvert[mf->v1].co);
/*
{
float x_v = (float) fx/(gridSize-1);
float y_v = (float) fy/(gridSize-1);
float data[6];
for (k=0; k<numDataComponents; k++) {
data[k] = (center_data[k]*(1.0f-x_v) + edge_data[S][k]*x_v)*(1.0f-y_v) +
(edge_data[prevS][k]*(1.0f-x_v) + corner_data[S][k]*x_v)*y_v;
}
*/
// if (cp) glColor3ub(cp[3], cp[2], cp[1]);
if (mf->flag&ME_SMOOTH) glNormal3fv(d->no);
glVertex3fv(d->co);
// if (cp) glColor3ub(cp[7], cp[6], cp[5]);
if (mf->flag&ME_SMOOTH) glNormal3fv(c->no);
glVertex3fv(c->co);
// if (cp) glColor3ub(cp[11], cp[10], cp[9]);
if (mf->flag&ME_SMOOTH) glNormal3fv(b->no);
glVertex3fv(b->co);
// if (cp) glColor3ub(cp[15], cp[14], cp[13]);
if (mf->flag&ME_SMOOTH) glNormal3fv(a->no);
glVertex3fv(a->co);
}
}
}
}
glEnd();
ccgFaceIterator_free(fi);
/*
MeshDerivedMesh *mdm = (MeshDerivedMesh*) dm;
Mesh *me = mdm->me;
MVert *mvert= mdm->verts;
MFace *mface= me->mface;
MTFace *tface = me->mtface;
float *nors = mdm->nors;
int a;
for (a=0; a<me->totface; a++) {
MFace *mf= &mface[a];
if (tf) glTexCoord2fv(tf->uv[1]);
if (cp) glColor3ub(cp[7], cp[6], cp[5]);
if (mf->flag&ME_SMOOTH) glNormal3sv(mvert[mf->v2].no);
glVertex3fv(mvert[mf->v2].co);
if (tf) glTexCoord2fv(tf->uv[2]);
if (cp) glColor3ub(cp[11], cp[10], cp[9]);
if (mf->flag&ME_SMOOTH) glNormal3sv(mvert[mf->v3].no);
glVertex3fv(mvert[mf->v3].co);
if(mf->v4) {
if (tf) glTexCoord2fv(tf->uv[3]);
if (cp) glColor3ub(cp[15], cp[14], cp[13]);
if (mf->flag&ME_SMOOTH) glNormal3sv(mvert[mf->v4].no);
glVertex3fv(mvert[mf->v4].co);
}
glEnd();
}
*/
}
static void ccgDM_drawMappedFaces(DerivedMesh *dm, int (*setDrawOptions)(void *userData, int index, int *drawSmooth_r), void *userData, int useColors) {
CCGDerivedMesh *ccgdm = (CCGDerivedMesh*) dm;
CCGSubSurf *ss = ccgdm->ss;
CCGFaceIterator *fi = ccgSubSurf_getFaceIterator(ss);
int i, gridSize = ccgSubSurf_getGridSize(ss);
int *faceFlags = dm->getFaceDataArray(dm, CD_FLAGS);
for (i=0; !ccgFaceIterator_isStopped(fi); i++,ccgFaceIterator_next(fi)) {
CCGFace *f = ccgFaceIterator_getCurrent(fi);
int S, x, y, numVerts = ccgSubSurf_getFaceNumVerts(ss, f);
int drawSmooth, index = ccgDM_getFaceMapIndex(ccgdm, ss, f);
int origIndex;
origIndex = (int)ccgSubSurf_getFaceFaceHandle(ss, f);
if(faceFlags) drawSmooth = (faceFlags[origIndex] & ME_SMOOTH);
else drawSmooth = 1;
if (index!=-1 && (!setDrawOptions || setDrawOptions(userData, index, &drawSmooth))) {
for (S=0; S<numVerts; S++) {
VertData *faceGridData = ccgSubSurf_getFaceGridDataArray(ss, f, S);
if (drawSmooth) {
glShadeModel(GL_SMOOTH);
for (y=0; y<gridSize-1; y++) {
glBegin(GL_QUAD_STRIP);
for (x=0; x<gridSize; x++) {
VertData *a = &faceGridData[(y+0)*gridSize + x];
VertData *b = &faceGridData[(y+1)*gridSize + x];
glNormal3fv(a->no);
glVertex3fv(a->co);
glNormal3fv(b->no);
glVertex3fv(b->co);
}
glEnd();
}
} else {
glShadeModel(GL_FLAT);
glBegin(GL_QUADS);
for (y=0; y<gridSize-1; y++) {
for (x=0; x<gridSize-1; x++) {
float *a = faceGridData[(y+0)*gridSize + x].co;
float *b = faceGridData[(y+0)*gridSize + x + 1].co;
float *c = faceGridData[(y+1)*gridSize + x + 1].co;
float *d = faceGridData[(y+1)*gridSize + x].co;
float a_cX = c[0]-a[0], a_cY = c[1]-a[1], a_cZ = c[2]-a[2];
float b_dX = d[0]-b[0], b_dY = d[1]-b[1], b_dZ = d[2]-b[2];
float no[3];
no[0] = b_dY*a_cZ - b_dZ*a_cY;
no[1] = b_dZ*a_cX - b_dX*a_cZ;
no[2] = b_dX*a_cY - b_dY*a_cX;
glNormal3fv(no);
glVertex3fv(d);
glVertex3fv(c);
glVertex3fv(b);
glVertex3fv(a);
}
}
glEnd();
}
}
}
}
ccgFaceIterator_free(fi);
}
static void ccgDM_drawMappedEdges(DerivedMesh *dm, int (*setDrawOptions)(void *userData, int index), void *userData) {
CCGDerivedMesh *ccgdm = (CCGDerivedMesh*) dm;
CCGSubSurf *ss = ccgdm->ss;
CCGEdgeIterator *ei = ccgSubSurf_getEdgeIterator(ss);
int i, useAging, edgeSize = ccgSubSurf_getEdgeSize(ss);
ccgSubSurf_getUseAgeCounts(ss, &useAging, NULL, NULL, NULL);
for (; !ccgEdgeIterator_isStopped(ei); ccgEdgeIterator_next(ei)) {
CCGEdge *e = ccgEdgeIterator_getCurrent(ei);
VertData *edgeData = ccgSubSurf_getEdgeDataArray(ss, e);
int index = ccgDM_getEdgeMapIndex(ccgdm, ss, e);
glBegin(GL_LINE_STRIP);
if (index!=-1 && (!setDrawOptions || setDrawOptions(userData, index))) {
if (useAging && !(G.f&G_BACKBUFSEL)) {
int ageCol = 255-ccgSubSurf_getEdgeAge(ss, e)*4;
glColor3ub(0, ageCol>0?ageCol:0, 0);
}
for (i=0; i<edgeSize-1; i++) {
glVertex3fv(edgeData[i].co);
glVertex3fv(edgeData[i+1].co);
}
}
glEnd();
}
ccgEdgeIterator_free(ei);
}
static void ccgDM_drawMappedEdgesInterp(DerivedMesh *dm, int (*setDrawOptions)(void *userData, int index), void (*setDrawInterpOptions)(void *userData, int index, float t), void *userData) {
CCGDerivedMesh *ccgdm = (CCGDerivedMesh*) dm;
CCGSubSurf *ss = ccgdm->ss;
CCGEdgeIterator *ei = ccgSubSurf_getEdgeIterator(ss);
int i, useAging, edgeSize = ccgSubSurf_getEdgeSize(ss);
ccgSubSurf_getUseAgeCounts(ss, &useAging, NULL, NULL, NULL);
for (; !ccgEdgeIterator_isStopped(ei); ccgEdgeIterator_next(ei)) {
CCGEdge *e = ccgEdgeIterator_getCurrent(ei);
VertData *edgeData = ccgSubSurf_getEdgeDataArray(ss, e);
int index = ccgDM_getEdgeMapIndex(ccgdm, ss, e);
glBegin(GL_LINE_STRIP);
if (index!=-1 && (!setDrawOptions || setDrawOptions(userData, index))) {
for (i=0; i<edgeSize; i++) {
setDrawInterpOptions(userData, index, (float) i/(edgeSize-1));
if (useAging && !(G.f&G_BACKBUFSEL)) {
int ageCol = 255-ccgSubSurf_getEdgeAge(ss, e)*4;
glColor3ub(0, ageCol>0?ageCol:0, 0);
}
glVertex3fv(edgeData[i].co);
}
}
glEnd();
}
ccgEdgeIterator_free(ei);
}
static void ccgDM_foreachMappedFaceCenter(DerivedMesh *dm, void (*func)(void *userData, int index, float *co, float *no), void *userData) {
CCGDerivedMesh *ccgdm = (CCGDerivedMesh*) dm;
CCGSubSurf *ss = ccgdm->ss;
CCGFaceIterator *fi = ccgSubSurf_getFaceIterator(ss);
for (; !ccgFaceIterator_isStopped(fi); ccgFaceIterator_next(fi)) {
CCGFace *f = ccgFaceIterator_getCurrent(fi);
int index = ccgDM_getFaceMapIndex(ccgdm, ss, f);
if (index!=-1) {
/* Face center data normal isn't updated atm. */
VertData *vd = ccgSubSurf_getFaceGridData(ss, f, 0, 0, 0);
func(userData, index, vd->co, vd->no);
}
}
ccgFaceIterator_free(fi);
}
static void ccgDM_release(DerivedMesh *dm) {
CCGDerivedMesh *ccgdm = (CCGDerivedMesh*) dm;
if (DM_release(dm)) {
MEM_freeN(ccgdm->vertMap);
MEM_freeN(ccgdm->edgeMap);
MEM_freeN(ccgdm->faceMap);
MEM_freeN(ccgdm);
}
}
static CCGDerivedMesh *getCCGDerivedMesh(CCGSubSurf *ss,
int drawInteriorEdges,
int useSubsurfUv, Mesh *me,
DerivedMesh *dm)
{
CCGDerivedMesh *ccgdm = MEM_callocN(sizeof(*ccgdm), "ccgdm");
CCGVertIterator *vi;
CCGEdgeIterator *ei;
CCGFaceIterator *fi;
int index, totvert, totedge, totface;
int i;
int vertNum, edgeNum, faceNum;
int *vertOrigIndex, *edgeOrigIndex, *faceOrigIndex;
int *faceFlags, *edgeFlags;
int edgeSize;
int gridSize;
int gridFaces;
int gridSideVerts;
int gridInternalVerts;
int gridSideEdges;
int gridInternalEdges;
MVert *mvert = NULL;
MEdge *medge = NULL;
MFace *mface = NULL;
FaceVertWeight *qweight, *tweight;
if(dm) {
DM_from_template(&ccgdm->dm, dm, ccgSubSurf_getNumFinalVerts(ss),
ccgSubSurf_getNumFinalEdges(ss),
ccgSubSurf_getNumFinalFaces(ss));
DM_add_face_layer(&ccgdm->dm, CD_FLAGS, CD_CALLOC, NULL);
DM_add_edge_layer(&ccgdm->dm, CD_FLAGS, CD_CALLOC, NULL);
CustomData_set_layer_flag(&ccgdm->dm.faceData, CD_FLAGS, CD_FLAG_NOCOPY);
CustomData_set_layer_flag(&ccgdm->dm.edgeData, CD_FLAGS, CD_FLAG_NOCOPY);
} else {
DM_init(&ccgdm->dm, ccgSubSurf_getNumFinalVerts(ss),
ccgSubSurf_getNumFinalEdges(ss),
ccgSubSurf_getNumFinalFaces(ss));
}
ccgdm->dm.getMinMax = ccgDM_getMinMax;
ccgdm->dm.getNumVerts = ccgDM_getNumVerts;
ccgdm->dm.getNumFaces = ccgDM_getNumFaces;
ccgdm->dm.getNumEdges = ccgDM_getNumEdges;
ccgdm->dm.getVert = ccgDM_getFinalVert;
ccgdm->dm.getEdge = ccgDM_getFinalEdge;
ccgdm->dm.getFace = ccgDM_getFinalFace;
ccgdm->dm.copyVertArray = ccgDM_copyFinalVertArray;
ccgdm->dm.copyEdgeArray = ccgDM_copyFinalEdgeArray;
ccgdm->dm.copyFaceArray = ccgDM_copyFinalFaceArray;
ccgdm->dm.getVertData = DM_get_vert_data;
ccgdm->dm.getEdgeData = DM_get_edge_data;
ccgdm->dm.getFaceData = DM_get_face_data;
ccgdm->dm.getVertDataArray = DM_get_vert_data_layer;
ccgdm->dm.getEdgeDataArray = DM_get_edge_data_layer;
ccgdm->dm.getFaceDataArray = DM_get_face_data_layer;
ccgdm->dm.getVertCos = ccgdm_getVertCos;
ccgdm->dm.foreachMappedVert = ccgDM_foreachMappedVert;
ccgdm->dm.foreachMappedEdge = ccgDM_foreachMappedEdge;
ccgdm->dm.foreachMappedFaceCenter = ccgDM_foreachMappedFaceCenter;
ccgdm->dm.drawVerts = ccgDM_drawVerts;
ccgdm->dm.drawEdges = ccgDM_drawEdges;
ccgdm->dm.drawLooseEdges = ccgDM_drawLooseEdges;
ccgdm->dm.drawFacesSolid = ccgDM_drawFacesSolid;
ccgdm->dm.drawFacesColored = ccgDM_drawFacesColored;
ccgdm->dm.drawFacesTex = ccgDM_drawFacesTex;
ccgdm->dm.drawMappedFaces = ccgDM_drawMappedFaces;
ccgdm->dm.drawMappedFacesTex = ccgDM_drawMappedFacesTex;
ccgdm->dm.drawMappedEdgesInterp = ccgDM_drawMappedEdgesInterp;
ccgdm->dm.drawMappedEdges = ccgDM_drawMappedEdges;
ccgdm->dm.release = ccgDM_release;
ccgdm->ss = ss;
ccgdm->drawInteriorEdges = drawInteriorEdges;
ccgdm->useSubsurfUv = useSubsurfUv;
ccgdm->me = me;
totvert = ccgSubSurf_getNumVerts(ss);
ccgdm->vertMap = MEM_mallocN(totvert * sizeof(*ccgdm->vertMap), "vertMap");
vi = ccgSubSurf_getVertIterator(ss);
for(; !ccgVertIterator_isStopped(vi); ccgVertIterator_next(vi)) {
CCGVert *v = ccgVertIterator_getCurrent(vi);
ccgdm->vertMap[(int) ccgSubSurf_getVertVertHandle(ss, v)].vert = v;
}
ccgVertIterator_free(vi);
totedge = ccgSubSurf_getNumEdges(ss);
ccgdm->edgeMap = MEM_mallocN(totedge * sizeof(*ccgdm->edgeMap), "edgeMap");
ei = ccgSubSurf_getEdgeIterator(ss);
for(; !ccgEdgeIterator_isStopped(ei); ccgEdgeIterator_next(ei)) {
CCGEdge *e = ccgEdgeIterator_getCurrent(ei);
ccgdm->edgeMap[(int) ccgSubSurf_getEdgeEdgeHandle(ss, e)].edge = e;
}
totface = ccgSubSurf_getNumFaces(ss);
ccgdm->faceMap = MEM_mallocN(totface * sizeof(*ccgdm->faceMap), "faceMap");
fi = ccgSubSurf_getFaceIterator(ss);
for(; !ccgFaceIterator_isStopped(fi); ccgFaceIterator_next(fi)) {
CCGFace *f = ccgFaceIterator_getCurrent(fi);
ccgdm->faceMap[(int) ccgSubSurf_getFaceFaceHandle(ss, f)].face = f;
}
ccgFaceIterator_free(fi);
edgeSize = ccgSubSurf_getEdgeSize(ss);
gridSize = ccgSubSurf_getGridSize(ss);
gridFaces = gridSize - 1;
gridSideVerts = gridSize - 2;
gridInternalVerts = gridSideVerts * gridSideVerts;
gridSideEdges = gridSize - 1;
gridInternalEdges = (gridSideEdges - 1) * gridSideEdges * 2;
calc_ss_weights(gridFaces, &qweight, &tweight);
vertNum = 0;
edgeNum = 0;
faceNum = 0;
if(dm) {
mvert = dm->getVertArray(dm);
medge = dm->getEdgeArray(dm);
mface = dm->getFaceArray(dm);
} else if(me) {
mvert = me->mvert;
medge = me->medge;
mface = me->mface;
}
vertOrigIndex = DM_get_vert_data_layer(&ccgdm->dm, CD_ORIGINDEX);
edgeOrigIndex = DM_get_edge_data_layer(&ccgdm->dm, CD_ORIGINDEX);
faceOrigIndex = DM_get_face_data_layer(&ccgdm->dm, CD_ORIGINDEX);
faceFlags = DM_get_face_data_layer(&ccgdm->dm, CD_FLAGS);
for(index = 0; index < totface; ++index) {
CCGFace *f = ccgdm->faceMap[index].face;
int numVerts = ccgSubSurf_getFaceNumVerts(ss, f);
int numFinalEdges = numVerts * (gridSideEdges + gridInternalEdges);
int mapIndex = ccgDM_getFaceMapIndex(ccgdm, ss, f);
int origIndex = (int)ccgSubSurf_getFaceFaceHandle(ss, f);
FaceVertWeight *weight = (numVerts == 4) ? qweight : tweight;
int S, x, y;
int vertIdx[4];
ccgdm->faceMap[index].startVert = vertNum;
ccgdm->faceMap[index].startEdge = edgeNum;
ccgdm->faceMap[index].startFace = faceNum;
/* set the face base vert */
*((int*)ccgSubSurf_getFaceUserData(ss, f)) = vertNum;
for(S = 0; S < numVerts; S++) {
CCGVert *v = ccgSubSurf_getFaceVert(ss, f, S);
vertIdx[S] = (int)ccgSubSurf_getVertVertHandle(ss, v);
}
DM_interp_vert_data(dm, &ccgdm->dm, vertIdx, weight[0][0],
numVerts, vertNum);
*vertOrigIndex = ORIGINDEX_NONE;
++vertOrigIndex;
++vertNum;
for(S = 0; S < numVerts; S++) {
int prevS = (S - 1 + numVerts) % numVerts;
int nextS = (S + 1) % numVerts;
int otherS = (numVerts == 4) ? (S + 2) % numVerts : 3;
for(x = 1; x < gridFaces; x++) {
float w[4];
w[prevS] = weight[x][0][0];
w[S] = weight[x][0][1];
w[nextS] = weight[x][0][2];
w[otherS] = weight[x][0][3];
DM_interp_vert_data(dm, &ccgdm->dm, vertIdx, w,
numVerts, vertNum);
*vertOrigIndex = ORIGINDEX_NONE;
++vertOrigIndex;
++vertNum;
}
}
for(S = 0; S < numVerts; S++) {
int prevS = (S - 1 + numVerts) % numVerts;
int nextS = (S + 1) % numVerts;
int otherS = (numVerts == 4) ? (S + 2) % numVerts : 3;
for(y = 1; y < gridFaces; y++) {
for(x = 1; x < gridFaces; x++) {
float w[4];
w[prevS] = weight[y * gridFaces + x][0][0];
w[S] = weight[y * gridFaces + x][0][1];
w[nextS] = weight[y * gridFaces + x][0][2];
w[otherS] = weight[y * gridFaces + x][0][3];
DM_interp_vert_data(dm, &ccgdm->dm, vertIdx, w,
numVerts, vertNum);
*vertOrigIndex = ORIGINDEX_NONE;
++vertOrigIndex;
++vertNum;
}
}
}
for(i = 0; i < numFinalEdges; ++i)
*(int *)DM_get_edge_data(&ccgdm->dm, edgeNum + i,
CD_ORIGINDEX) = ORIGINDEX_NONE;
for(S = 0; S < numVerts; S++) {
int prevS = (S - 1 + numVerts) % numVerts;
int nextS = (S + 1) % numVerts;
int otherS = (numVerts == 4) ? (S + 2) % numVerts : 3;
weight = (numVerts == 4) ? qweight : tweight;
for(y = 0; y < gridFaces; y++) {
for(x = 0; x < gridFaces; x++) {
FaceVertWeight w;
int j;
for(j = 0; j < 4; ++j) {
w[j][prevS] = (*weight)[j][0];
w[j][S] = (*weight)[j][1];
w[j][nextS] = (*weight)[j][2];
w[j][otherS] = (*weight)[j][3];
}
DM_interp_face_data(dm, &ccgdm->dm, &origIndex, NULL,
&w, 1, faceNum);
weight++;
*faceOrigIndex = mapIndex;
++faceOrigIndex;
++faceNum;
}
}
}
faceFlags[index] = mface[origIndex].flag;
edgeNum += numFinalEdges;
}
if(useSubsurfUv) {
CustomData *fdata = &ccgdm->dm.faceData;
CustomData *dmfdata = &dm->faceData;
int numlayer = CustomData_number_of_layers(fdata, CD_MTFACE);
int dmnumlayer = CustomData_number_of_layers(dmfdata, CD_MTFACE);
for (i=0; i<numlayer && i<dmnumlayer; i++)
set_subsurf_uv(ss, dm, &ccgdm->dm, i);
}
edgeFlags = DM_get_edge_data_layer(&ccgdm->dm, CD_FLAGS);
for(index = 0; index < totedge; ++index) {
CCGEdge *e = ccgdm->edgeMap[index].edge;
int numFinalEdges = edgeSize - 1;
int mapIndex = ccgDM_getEdgeMapIndex(ccgdm, ss, e);
int x;
int vertIdx[2];
int edgeIdx = (int)ccgSubSurf_getEdgeEdgeHandle(ss, e);
CCGVert *v;
v = ccgSubSurf_getEdgeVert0(ss, e);
vertIdx[0] = (int)ccgSubSurf_getVertVertHandle(ss, v);
v = ccgSubSurf_getEdgeVert1(ss, e);
vertIdx[1] = (int)ccgSubSurf_getVertVertHandle(ss, v);
ccgdm->edgeMap[index].startVert = vertNum;
ccgdm->edgeMap[index].startEdge = edgeNum;
/* set the edge base vert */
*((int*)ccgSubSurf_getEdgeUserData(ss, e)) = vertNum;
for(x = 1; x < edgeSize - 1; x++) {
float w[2];
w[1] = (float) x / (edgeSize - 1);
w[0] = 1 - w[1];
DM_interp_vert_data(dm, &ccgdm->dm, vertIdx, w, 2, vertNum);
*vertOrigIndex = ORIGINDEX_NONE;
++vertOrigIndex;
++vertNum;
}
for(i = 0; i < numFinalEdges; ++i) {
if(edgeIdx >= 0 && edgeFlags)
edgeFlags[edgeNum + i] = medge[edgeIdx].flag;
*(int *)DM_get_edge_data(&ccgdm->dm, edgeNum + i,
CD_ORIGINDEX) = mapIndex;
}
edgeNum += numFinalEdges;
}
for(index = 0; index < totvert; ++index) {
CCGVert *v = ccgdm->vertMap[index].vert;
int mapIndex = ccgDM_getVertMapIndex(ccgdm, ccgdm->ss, v);
int vertIdx;
vertIdx = (int)ccgSubSurf_getVertVertHandle(ss, v);
ccgdm->vertMap[index].startVert = vertNum;
/* set the vert base vert */
*((int*) ccgSubSurf_getVertUserData(ss, v)) = vertNum;
DM_copy_vert_data(dm, &ccgdm->dm, vertIdx, vertNum, 1);
*vertOrigIndex = mapIndex;
++vertOrigIndex;
++vertNum;
}
MEM_freeN(qweight);
MEM_freeN(tweight);
return ccgdm;
}
/***/
struct DerivedMesh *subsurf_make_derived_from_derived(
struct DerivedMesh *dm,
struct SubsurfModifierData *smd,
int useRenderParams, float (*vertCos)[3],
int isFinalCalc, int editMode)
{
int useSimple = smd->subdivType == ME_SIMPLE_SUBSURF;
int useAging = smd->flags & eSubsurfModifierFlag_DebugIncr;
int useSubsurfUv = smd->flags & eSubsurfModifierFlag_SubsurfUv;
int drawInteriorEdges = !(smd->flags & eSubsurfModifierFlag_ControlEdges);
DerivedMesh *result;
if(editMode) {
smd->emCache = _getSubSurf(smd->emCache, smd->levels, useAging, 0,
useSimple);
ss_sync_from_derivedmesh(smd->emCache, dm, vertCos, useSimple);
return (DerivedMesh *)getCCGDerivedMesh(smd->emCache,
drawInteriorEdges,
useSubsurfUv, NULL, dm);
} else if(useRenderParams) {
/* Do not use cache in render mode. */
CCGSubSurf *ss = _getSubSurf(NULL, smd->renderLevels, 0, 1, useSimple);
ss_sync_from_derivedmesh(ss, dm, vertCos, useSimple);
result = ss_to_cdderivedmesh(ss, 0, drawInteriorEdges,
useSubsurfUv, dm);
ccgSubSurf_free(ss);
return result;
} else {
int useIncremental = (smd->flags & eSubsurfModifierFlag_Incremental);
int useAging = smd->flags & eSubsurfModifierFlag_DebugIncr;
CCGSubSurf *ss;
/* It is quite possible there is a much better place to do this. It
* depends a bit on how rigourously we expect this function to never
* be called in editmode. In semi-theory we could share a single
* cache, but the handles used inside and outside editmode are not
* the same so we would need some way of converting them. Its probably
* not worth the effort. But then why am I even writing this long
* comment that no one will read? Hmmm. - zr
*/
if(smd->emCache) {
ccgSubSurf_free(smd->emCache);
smd->emCache = NULL;
}
if(useIncremental && isFinalCalc) {
smd->mCache = ss = _getSubSurf(smd->mCache, smd->levels,
useAging, 0, useSimple);
ss_sync_from_derivedmesh(ss, dm, vertCos, useSimple);
return ss_to_cdderivedmesh(ss, 0, drawInteriorEdges,
useSubsurfUv, dm);
} else {
if (smd->mCache && isFinalCalc) {
ccgSubSurf_free(smd->mCache);
smd->mCache = NULL;
}
ss = _getSubSurf(NULL, smd->levels, 0, 1, useSimple);
ss_sync_from_derivedmesh(ss, dm, vertCos, useSimple);
result = ss_to_cdderivedmesh(ss, 0, drawInteriorEdges,
useSubsurfUv, dm);
ccgSubSurf_free(ss);
return result;
}
}
}
void subsurf_calculate_limit_positions(Mesh *me, float (*positions_r)[3])
{
/* Finds the subsurf limit positions for the verts in a mesh
* and puts them in an array of floats. Please note that the
* calculated vert positions is incorrect for the verts
* on the boundary of the mesh.
*/
CCGSubSurf *ss = _getSubSurf(NULL, 1, 0, 1, 0);
float edge_sum[3], face_sum[3];
CCGVertIterator *vi;
DerivedMesh *dm = CDDM_from_mesh(me, NULL);
ss_sync_from_derivedmesh(ss, dm, NULL, 0);
vi = ccgSubSurf_getVertIterator(ss);
for (; !ccgVertIterator_isStopped(vi); ccgVertIterator_next(vi)) {
CCGVert *v = ccgVertIterator_getCurrent(vi);
int idx = (int) ccgSubSurf_getVertVertHandle(ss, v);
int N = ccgSubSurf_getVertNumEdges(ss, v);
int numFaces = ccgSubSurf_getVertNumFaces(ss, v);
float *co;
int i;
edge_sum[0]= edge_sum[1]= edge_sum[2]= 0.0;
face_sum[0]= face_sum[1]= face_sum[2]= 0.0;
for (i=0; i<N; i++) {
CCGEdge *e = ccgSubSurf_getVertEdge(ss, v, i);
VecAddf(edge_sum, edge_sum, ccgSubSurf_getEdgeData(ss, e, 1));
}
for (i=0; i<numFaces; i++) {
CCGFace *f = ccgSubSurf_getVertFace(ss, v, i);
VecAddf(face_sum, face_sum, ccgSubSurf_getFaceCenterData(ss, f));
}
co = ccgSubSurf_getVertData(ss, v);
positions_r[idx][0] = (co[0]*N*N + edge_sum[0]*4 + face_sum[0])/(N*(N+5));
positions_r[idx][1] = (co[1]*N*N + edge_sum[1]*4 + face_sum[1])/(N*(N+5));
positions_r[idx][2] = (co[2]*N*N + edge_sum[2]*4 + face_sum[2])/(N*(N+5));
}
ccgVertIterator_free(vi);
ccgSubSurf_free(ss);
dm->release(dm);
}
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