-> UV and VCOL support for bevel (editmode)

BMesh and the bevel code now support UVs/VCOLS.
The offset is fixed at this time, but will be
made dynamic later.

8 files changed, 339 insertions, 34 deletions

diff --git a/source/blender/blenkernel/BKE_customdata.h b/source/blender/blenkernel/BKE_customdata.h
index 81c2e4a4b94..12f68c771e0 100644
--- a/source/blender/blenkernel/BKE_customdata.h
+++ b/source/blender/blenkernel/BKE_customdata.h
@@ -41,6 +41,7 @@ extern const CustomDataMask CD_MASK_MESH;
 extern const CustomDataMask CD_MASK_EDITMESH;
 extern const CustomDataMask CD_MASK_DERIVEDMESH;
 extern const CustomDataMask CD_MASK_BMESH;
+extern const CustomDataMask CD_MASK_FACECORNERS;
 
 /* for ORIGINDEX layer type, indicates no original index for this element */
 #define ORIGINDEX_NONE -1
@@ -264,4 +265,8 @@ void CustomData_set_layer_unique_name(struct CustomData *data, int index);
 /* for file reading compatibility, returns false if the layer was freed,
    only after this test passes, layer->data should be assigned */
 int CustomData_verify_versions(struct CustomData *data, int index);
+
+void CustomData_to_bmeshpoly(struct CustomData *fdata, struct CustomData *pdata, struct CustomData *ldata);
+void CustomData_from_bmeshpoly(struct CustomData *fdata, struct CustomData *pdata, struct CustomData *ldata);
+void CustomData_bmesh_init_pool(struct CustomData *data, int allocsize);
 #endif
diff --git a/source/blender/blenkernel/intern/BME_conversions.c b/source/blender/blenkernel/intern/BME_conversions.c
index 7952546de7c..f375ca62726 100644
--- a/source/blender/blenkernel/intern/BME_conversions.c
+++ b/source/blender/blenkernel/intern/BME_conversions.c
@@ -55,14 +55,104 @@
 #include "bmesh_private.h"
 
 #include "BSE_edit.h"
-/*Converts an EditMesh to a BME_Mesh.*/
-static void bmesh_init_cdPool(CustomData *data, int allocsize){
-	if(data->totlayer)data->pool = BLI_mempool_create(data->totsize, allocsize, allocsize);
+
+static void BME_corners_to_loops(BME_Mesh *bm, CustomData *facedata, void *face_block, BME_Poly *f,int numCol, int numTex){
+	int i, j;
+	BME_Loop *l;
+	MTFace *texface;
+	MTexPoly *texpoly;
+	MCol *mcol;
+	MLoopCol *mloopcol;
+	MLoopUV *mloopuv;
+
+	for(i=0; i < numTex; i++){
+		texface = CustomData_em_get_n(facedata, face_block, CD_MTFACE, i);
+		texpoly = CustomData_bmesh_get_n(&bm->pdata, f->data, CD_MTEXPOLY, i);
+		
+		texpoly->tpage = texface->tpage;
+		texpoly->flag = texface->flag;
+		texpoly->transp = texface->transp;
+		texpoly->mode = texface->mode;
+		texpoly->tile = texface->tile;
+		texpoly->unwrap = texface->unwrap;
+
+		j = 0;
+		l = f->loopbase;
+		do{
+			mloopuv = CustomData_bmesh_get_n(&bm->ldata, l->data, CD_MLOOPUV, i);
+			mloopuv->uv[0] = texface->uv[j][0];
+			mloopuv->uv[1] = texface->uv[j][1];
+			j++;
+			l = l->next;
+		}while(l!=f->loopbase);
+
+	}
+	for(i=0; i < numCol; i++){
+		mcol = CustomData_em_get_n(facedata, face_block, CD_MCOL, i);
+		j = 0;
+		l = f->loopbase;
+		do{
+			mloopcol = CustomData_bmesh_get_n(&bm->ldata, l->data, CD_MLOOPCOL, i);
+			mloopcol->r = mcol[j].r;
+			mloopcol->g = mcol[j].g;
+			mloopcol->b = mcol[j].b;
+			mloopcol->a = mcol[j].a;
+			j++;
+			l = l->next;
+		}while(l!=f->loopbase);
+	}
 }
 
+static void BME_loops_to_corners(BME_Mesh *bm, CustomData *facedata, void *face_block, BME_Poly *f,int numCol, int numTex){
+	int i, j;
+	BME_Loop *l;
+	MTFace *texface;
+	MTexPoly *texpoly;
+	MCol *mcol;
+	MLoopCol *mloopcol;
+	MLoopUV *mloopuv;
+
+	for(i=0; i < numTex; i++){
+		texface = CustomData_em_get_n(facedata, face_block, CD_MTFACE, i);
+		texpoly = CustomData_bmesh_get_n(&bm->pdata, f->data, CD_MTEXPOLY, i);
+		
+		texface->tpage = texpoly->tpage;
+		texface->flag = texpoly->flag;
+		texface->transp = texpoly->transp;
+		texface->mode = texpoly->mode;
+		texface->tile = texpoly->tile;
+		texface->unwrap = texpoly->unwrap;
+
+		j = 0;
+		l = f->loopbase;
+		do{
+			mloopuv = CustomData_bmesh_get_n(&bm->ldata, l->data, CD_MLOOPUV, i);
+			texface->uv[j][0] = mloopuv->uv[0];
+			texface->uv[j][1] = mloopuv->uv[1];
+			j++;
+			l = l->next;
+		}while(l!=f->loopbase);
+
+	}
+	for(i=0; i < numCol; i++){
+		mcol = CustomData_em_get_n(facedata, face_block, CD_MCOL, i);
+		j = 0;
+		l = f->loopbase;
+		do{
+			mloopcol = CustomData_bmesh_get_n(&bm->ldata, l->data, CD_MLOOPCOL, i);
+			mcol[j].r = mloopcol->r;
+			mcol[j].g = mloopcol->g;
+			mcol[j].b = mloopcol->b;
+			mcol[j].a = mloopcol->a;
+			j++;
+			l = l->next;
+		}while(l!=f->loopbase);
+	}
+}
+/*move the EditMesh conversion functions to editmesh_tools.c*/
 BME_Mesh *BME_editmesh_to_bmesh(EditMesh *em) {
 	BME_Mesh *bm;
-	int allocsize[4] = {512,512,2048,512};
+	int allocsize[4] = {512,512,2048,512}, numTex, numCol;
 	BME_Vert *v1, *v2;
 	BME_Edge *e, *edar[4];
 	BME_Poly *f;
@@ -74,8 +164,21 @@ BME_Mesh *BME_editmesh_to_bmesh(EditMesh *em) {
 	int len;
 	bm = BME_make_mesh(allocsize);
 
+	/*copy custom data layout*/
 	CustomData_copy(&em->vdata, &bm->vdata, CD_MASK_BMESH, CD_CALLOC, 0);
-	bmesh_init_cdPool(&bm->vdata, allocsize[0]);
+	CustomData_copy(&em->edata, &bm->edata, CD_MASK_BMESH, CD_CALLOC, 0);
+	CustomData_copy(&em->fdata, &bm->pdata, CD_MASK_BMESH, CD_CALLOC, 0);
+
+	/*copy face corner data*/
+	CustomData_to_bmeshpoly(&em->fdata, &bm->pdata, &bm->ldata);
+	/*initialize memory pools*/
+	CustomData_bmesh_init_pool(&bm->vdata, allocsize[0]);
+	CustomData_bmesh_init_pool(&bm->edata, allocsize[1]);
+	CustomData_bmesh_init_pool(&bm->ldata, allocsize[2]);
+	CustomData_bmesh_init_pool(&bm->pdata, allocsize[3]);
+	/*needed later*/
+	numTex = CustomData_number_of_layers(&bm->pdata, CD_MTEXPOLY);
+	numCol = CustomData_number_of_layers(&bm->ldata, CD_MLOOPCOL);
 
 	BME_model_begin(bm);
 	/*add verts*/
@@ -86,7 +189,6 @@ BME_Mesh *BME_editmesh_to_bmesh(EditMesh *em) {
 		v1->flag = eve->f;
 		v1->h = eve->h;
 		v1->bweight = eve->bweight;
-
 		/*Copy Custom Data*/
 		CustomData_bmesh_copy_data(&em->vdata, &bm->vdata, eve->data, &v1->data);
 		eve->tmp.v = (EditVert*)v1;
@@ -106,15 +208,10 @@ BME_Mesh *BME_editmesh_to_bmesh(EditMesh *em) {
 		if(eed->seam) e->flag |= ME_SEAM;
 		if(eed->h & EM_FGON) e->flag |= ME_FGON;
 		if(eed->h & 1) e->flag |= ME_HIDE;
-
-		/* link the edges for face construction;
-		 * kind of a dangerous thing - remember to cast back to BME_Edge before using! */
-		/*Copy CustomData*/
-
 		eed->tmp.e = (EditEdge*)e;
+		CustomData_bmesh_copy_data(&em->edata, &bm->edata, eed->data, &e->data);
 		eed = eed->next;
 	}
-
 	/*add faces.*/
 	efa= em->faces.first;
 	while(efa) {
@@ -143,12 +240,13 @@ BME_Mesh *BME_editmesh_to_bmesh(EditMesh *em) {
 			if(efa->f & 1) f->flag |= ME_FACE_SEL;
 			else f->flag &= ~ME_FACE_SEL;
 		}
+		CustomData_bmesh_copy_data(&em->fdata, &bm->pdata, efa->data, &f->data);
+		BME_corners_to_loops(bm, &em->fdata, efa->data, f,numCol,numTex);
 		efa = efa->next;
 	}
 	BME_model_end(bm);
 	return bm;
 }
-
 /* adds the geometry in the bmesh to G.editMesh (does not free G.editMesh)
  * if td != NULL, the transdata will be mapped to the EditVert's co */
 EditMesh *BME_bmesh_to_editmesh(BME_Mesh *bm, BME_TransData_Head *td) {
@@ -163,7 +261,7 @@ EditMesh *BME_bmesh_to_editmesh(BME_Mesh *bm, BME_TransData_Head *td) {
 	EditEdge *eed;
 	EditFace *efa;
 
-	int totvert, len, i;
+	int totvert, len, i, numTex, numCol;
 
 	em = G.editMesh;
 
@@ -171,6 +269,13 @@ EditMesh *BME_bmesh_to_editmesh(BME_Mesh *bm, BME_TransData_Head *td) {
 
 
 	CustomData_copy(&bm->vdata, &em->vdata, CD_MASK_BMESH, CD_CALLOC, 0);
+	CustomData_copy(&bm->edata, &em->edata, CD_MASK_BMESH, CD_CALLOC, 0);
+	CustomData_copy(&bm->pdata, &em->fdata, CD_MASK_BMESH, CD_CALLOC, 0);
+	CustomData_from_bmeshpoly(&em->fdata, &bm->pdata, &bm->ldata);
+	numTex = CustomData_number_of_layers(&bm->pdata, CD_MTEXPOLY);
+	numCol = CustomData_number_of_layers(&bm->ldata, CD_MLOOPCOL);
+
+
 	/* convert to EditMesh */
 	/* make editverts */
 	totvert = BLI_countlist(&(bm->verts));
@@ -202,6 +307,8 @@ EditMesh *BME_bmesh_to_editmesh(BME_Mesh *bm, BME_TransData_Head *td) {
 			if(e->flag & ME_HIDE) eed->h |= 1;
 			if(G.scene->selectmode==SCE_SELECT_EDGE) 
 				EM_select_edge(eed, eed->f & SELECT);
+		
+			CustomData_em_copy_data(&bm->edata, &em->edata, e->data, &eed->data);
 		}
 	}
 
@@ -228,6 +335,8 @@ EditMesh *BME_bmesh_to_editmesh(BME_Mesh *bm, BME_TransData_Head *td) {
 			if(f->flag & ME_HIDE) efa->h= 1;
 			if((G.f & G_FACESELECT) && (efa->f & SELECT))
 				EM_select_face(efa, 1); /* flush down */
+			CustomData_em_copy_data(&bm->pdata, &em->fdata, f->data, &efa->data);
+			BME_loops_to_corners(bm, &em->fdata, efa->data, f,numCol,numTex);
 		}
 	}
 
diff --git a/source/blender/blenkernel/intern/BME_eulers.c b/source/blender/blenkernel/intern/BME_eulers.c
index 3403f5829fe..801e0b8bdec 100644
--- a/source/blender/blenkernel/intern/BME_eulers.c
+++ b/source/blender/blenkernel/intern/BME_eulers.c
@@ -39,6 +39,7 @@
 #include "DNA_mesh_types.h"
 
 #include "BKE_utildefines.h"
+#include "BKE_customdata.h"
 #include "BKE_bmesh.h"
 
 #include "BLI_blenlib.h"
@@ -618,8 +619,8 @@ BME_Poly *BME_SFME(BME_Mesh *bm, BME_Poly *f, BME_Vert *v1, BME_Vert *v2, BME_Lo
 	BME_disk_append_edge(e, v2);
 	
 	f2 = BME_addpolylist(bm,f);
-	f1loop = BME_create_loop(bm,v2,e,f,NULL);
-	f2loop = BME_create_loop(bm,v1,e,f2,NULL);
+	f1loop = BME_create_loop(bm,v2,e,f,v2loop);
+	f2loop = BME_create_loop(bm,v1,e,f2,v1loop);
 	
 	f1loop->prev = v2loop->prev;
 	f2loop->prev = v1loop->prev;
@@ -663,16 +664,16 @@ BME_Poly *BME_SFME(BME_Mesh *bm, BME_Poly *f, BME_Vert *v1, BME_Vert *v2, BME_Lo
  *	Takes a an edge and pointer to one of its vertices and collapses
  *	the edge on that vertex.
  *	
- *	Before:		    OE      KE
+ *	Before:    OE      KE
  *             	 ------- -------
  *               |     ||      |
- *				OV     KV      TV
+ *		OV     KV      TV
  *
  *
  *   After:             OE      
  *             	 ---------------
  *               |             |
- *				OV             TV
+ *		OV             TV
  *
  *
  *	Restrictions:
@@ -723,6 +724,8 @@ int BME_JEKV(BME_Mesh *bm, BME_Edge *ke, BME_Vert *kv)
 			/*remove ke from tv's disk cycle*/
 			BME_disk_remove_edge(ke, tv);
 		
+			
+
 			/*deal with radial cycle of ke*/
 			if(ke->loop){
 				/*first step, fix the neighboring loops of all loops in ke's radial cycle*/
@@ -763,6 +766,7 @@ int BME_JEKV(BME_Mesh *bm, BME_Edge *ke, BME_Vert *kv)
 				
 			}
 			
+
 			/*Validate disk cycles*/
 			diskbase = BME_disk_getpointer(ov->edge,ov);
 			edok = BME_cycle_validate(valance1, diskbase);
diff --git a/source/blender/blenkernel/intern/BME_structure.c b/source/blender/blenkernel/intern/BME_structure.c
index 92ef9e3e03c..ca27f5efd10 100644
--- a/source/blender/blenkernel/intern/BME_structure.c
+++ b/source/blender/blenkernel/intern/BME_structure.c
@@ -41,7 +41,6 @@
 #include "BLI_blenlib.h"
 #include "BLI_linklist.h"
 #include "BLI_ghash.h"
-
 /**
  *	MISC utility functions.
  *
diff --git a/source/blender/blenkernel/intern/BME_tools.c b/source/blender/blenkernel/intern/BME_tools.c
index 916e6bee59f..90259031e5c 100644
--- a/source/blender/blenkernel/intern/BME_tools.c
+++ b/source/blender/blenkernel/intern/BME_tools.c
@@ -215,10 +215,42 @@ static void BME_data_interp_from_verts(BME_Mesh *bm, BME_Vert *v1, BME_Vert *v2,
 		src[1]= v2->data;
 		w[0] = 1.0f-fac;
 		w[1] = fac;
-		CustomData_em_interp(&bm->vdata, src, w, NULL, 2, v->data);
+		CustomData_bmesh_interp(&bm->vdata, src, w, NULL, 2, v->data);
 	}
 }
 
+
+static void BME_data_facevert_edgesplit(BME_Mesh *bm, BME_Vert *v1, BME_Vert *v2, BME_Vert *v, BME_Edge *e1, float fac){
+	void *src[2];
+	float w[2];
+	BME_Loop *l=NULL, *v1loop = NULL, *vloop = NULL, *v2loop = NULL;
+	
+	w[0] = 1.0f - fac;
+	w[1] = fac;
+
+	if(!e1->loop) return;
+	l = e1->loop;
+	do{
+		if(l->v == v1){ 
+			v1loop = l;
+			vloop = v1loop->next;
+			v2loop = vloop->next;
+		}else if(l->v == v){
+			v1loop = l->next;
+			vloop = l;
+			v2loop = l->prev;
+			
+		}
+
+		src[0] = v1loop->data;
+		src[1] = v2loop->data;					
+
+		CustomData_bmesh_interp(&bm->ldata, src,w, NULL, 2, vloop->data); 				
+		l = l->radial.next->data;
+	}while(l!=e1->loop);
+}
+
+
 /* a wrapper for BME_SEMV that transfers element flags */ /*add custom data interpolation in here!*/
 static BME_Vert *BME_split_edge(BME_Mesh *bm, BME_Vert *v, BME_Edge *e, BME_Edge **ne, float percent) {
 	BME_Vert *nv, *v2;
@@ -238,9 +270,37 @@ static BME_Vert *BME_split_edge(BME_Mesh *bm, BME_Vert *v, BME_Edge *e, BME_Edge
 		(*ne)->crease = e->crease;
 		(*ne)->bweight = e->bweight;
 	}
+	/*v->nv->v2*/
+	BME_data_facevert_edgesplit(bm,v2, v, nv, e, 0.75);	
 	return nv;
 }
 
+static void BME_collapse_vert(BME_Mesh *bm, BME_Edge *ke, BME_Vert *kv, float fac){
+	void *src[2];
+	float w[2];
+	BME_Loop *l=NULL, *kvloop=NULL, *tvloop=NULL;
+	BME_Vert *tv = BME_edge_getothervert(ke,kv);
+
+	w[0] = 1.0f - fac;
+	w[1] = fac;
+
+	if(ke->loop){
+		l = ke->loop;
+		do{
+			if(l->v == tv && l->next->v == kv){
+				tvloop = l;
+				kvloop = l->next;
+
+				src[0] = kvloop->data;
+				src[1] = tvloop->data;
+				CustomData_bmesh_interp(&bm->ldata, src,w, NULL, 2, kvloop->data); 								
+			}
+			l=l->radial.next->data;
+		}while(l!=ke->loop);
+	}
+	BME_JEKV(bm,ke,kv);
+}
+
 
 
 static int BME_bevel_is_split_vert(BME_Loop *l) {
@@ -367,6 +427,8 @@ static BME_Vert *BME_bevel_split_edge(BME_Mesh *bm, BME_Vert *v, BME_Vert *v1, B
 		ov = BME_edge_getothervert(e1,v);
 		sv = BME_split_edge(bm,v,e1,&ne,0);
 		//BME_data_interp_from_verts(bm, v, ov, sv, 0.25); /*this is technically wrong...*/
+		//BME_data_interp_from_faceverts(bm, v, ov, sv, 0.25);
+		//BME_data_interp_from_faceverts(bm, ov, v, sv, 0.25);
 		BME_assign_transdata(td, bm, sv, sv->co, sv->co, NULL, sv->co, 0, -1, -1, NULL); /* quick default */
 		sv->tflag1 |= BME_BEVEL_BEVEL;
 		ne->tflag1 = BME_BEVEL_ORIG; /* mark edge as original, even though it isn't */
@@ -408,6 +470,8 @@ static BME_Vert *BME_bevel_split_edge(BME_Mesh *bm, BME_Vert *v, BME_Vert *v1, B
 			ov = BME_edge_getothervert(l->e,v);
 			sv = BME_split_edge(bm,v,l->e,&ne,0);
 			//BME_data_interp_from_verts(bm, v, ov, sv, 0.25); /*this is technically wrong...*/
+			//BME_data_interp_from_faceverts(bm, v, ov, sv, 0.25);
+			//BME_data_interp_from_faceverts(bm, ov, v, sv, 0.25);
 			BME_assign_transdata(td, bm, sv, sv->co, sv->co, NULL, sv->co, 0, -1, -1, NULL); /* quick default */
 			sv->tflag1 |= BME_BEVEL_BEVEL;
 			ne->tflag1 = BME_BEVEL_ORIG; /* mark edge as original, even though it isn't */
@@ -586,12 +650,15 @@ static BME_Loop *BME_bevel_edge(BME_Mesh *bm, BME_Loop *l, float value, int opti
 		if (kl->v == kv) {
 			BME_split_face(bm,kl->f,kl->prev->v,kl->next->v,&nl,kl->prev->e);
 			BME_JFKE(bm,((BME_Loop*)kl->prev->radial.next->data)->f,kl->f,kl->prev->e);
-			BME_JEKV(bm,kl->e,kv);
+			BME_collapse_vert(bm, kl->e, kv, 1.0);
+			//BME_JEKV(bm,kl->e,kv);
+			
 		}
 		else {
 			BME_split_face(bm,kl->f,kl->next->next->v,kl->v,&nl,kl->next->e);
 			BME_JFKE(bm,((BME_Loop*)kl->next->radial.next->data)->f,kl->f,kl->next->e);
-			BME_JEKV(bm,kl->e,kv);
+			BME_collapse_vert(bm, kl->e, kv, 1.0);
+			//BME_JEKV(bm,kl->e,kv);
 		}
 		l = l->prev;
 	}
@@ -620,12 +687,14 @@ static BME_Loop *BME_bevel_edge(BME_Mesh *bm, BME_Loop *l, float value, int opti
 		if (kl->v == kv) {
 			BME_split_face(bm,kl->f,kl->prev->v,kl->next->v,&nl,kl->prev->e);
 			BME_JFKE(bm,((BME_Loop*)kl->prev->radial.next->data)->f,kl->f,kl->prev->e);
-			BME_JEKV(bm,kl->e,kv);
+			BME_collapse_vert(bm, kl->e, kv, 1.0);
+			//BME_JEKV(bm,kl->e,kv);
 		}
 		else {
 			BME_split_face(bm,kl->f,kl->next->next->v,kl->v,&nl,kl->next->e);
 			BME_JFKE(bm,((BME_Loop*)kl->next->radial.next->data)->f,kl->f,kl->next->e);
-			BME_JEKV(bm,kl->e,kv);
+			BME_collapse_vert(bm, kl->e, kv, 1.0);
+			//BME_JEKV(bm,kl->e,kv);
 		}
 	}
 
@@ -1092,7 +1161,8 @@ static void bmesh_dissolve_disk(BME_Mesh *bm, BME_Vert *v){
 				e = BME_disk_nextedge(e,v);
 			}while(e != v->edge);
 		}
-		BME_JEKV(bm,v->edge,v);
+		BME_collapse_vert(bm, v->edge, v, 1.0);
+		//BME_JEKV(bm,v->edge,v);
 	}
 }
 static BME_Mesh *BME_bevel_mesh(BME_Mesh *bm, float value, int res, int options, int defgrp_index, BME_TransData_Head *td) {
diff --git a/source/blender/blenkernel/intern/customdata.c b/source/blender/blenkernel/intern/customdata.c
index 4880a246e1c..d79dcb14f37 100644
--- a/source/blender/blenkernel/intern/customdata.c
+++ b/source/blender/blenkernel/intern/customdata.c
@@ -360,8 +360,80 @@ static void layerDefault_origspace_face(void *data, int count)
 }
 /* --------- */
 
+static void layerDefault_mloopcol(void *data, int count)
+{
+	static MLoopCol default_mloopcol = {255,255,255,255};
+	MLoopCol *mlcol = (MLoopCol*)data;
+	int i;
+	for(i = 0; i < count; i++)
+		mlcol[i] = default_mloopcol;
 
+}
 
+static void layerInterp_mloopcol(void **sources, float *weights,
+				float *sub_weights, int count, void *dest)
+{
+	MLoopCol *mc = dest;
+	int i;
+	float *sub_weight;
+	struct {
+		float a;
+		float r;
+		float g;
+		float b;
+	} col;
+	col.a = col.r = col.g = col.b = 0;
+
+	sub_weight = sub_weights;
+	for(i = 0; i < count; ++i){
+		float weight = weights ? weights[i] : 1;
+		MLoopCol *src = sources[i];
+		if(sub_weights){
+			col.a += src->a * (*sub_weight) * weight;
+			col.r += src->r * (*sub_weight) * weight;
+			col.g += src->g * (*sub_weight) * weight;
+			col.b += src->b * (*sub_weight) * weight;
+			sub_weight++;		
+		} else {
+			col.a += src->a * weight;
+			col.r += src->r * weight;
+			col.g += src->g * weight;
+			col.b += src->b * weight;
+		}
+	}
+	mc->a = (int)col.a;
+	mc->r = (int)col.r;
+	mc->g = (int)col.g;
+	mc->b = (int)col.b;
+}
+static void layerInterp_mloopuv(void **sources, float *weights,
+				float *sub_weights, int count, void *dest)
+{
+	MLoopUV *mluv = dest;
+	int i;
+	float *sub_weight;
+	struct {
+		float u;
+		float v;
+	}uv;
+	uv.u = uv.v = 0.0;
+
+	sub_weight = sub_weights;
+	for(i = 0; i < count; ++i){
+		float weight = weights ? weights[i] : 1;
+		MLoopUV *src = sources[i];
+		if(sub_weights){
+			uv.u += src->uv[0] * (*sub_weight) * weight;
+			uv.v += src->uv[1] * (*sub_weight) * weight;
+			sub_weight++;		
+		} else {
+			uv.u += src->uv[0] * weight;
+			uv.v += src->uv[1] * weight;
+		}
+	}
+	mluv->uv[0] = uv.u;
+	mluv->uv[1] = uv.v;
+}
 
 static void layerInterp_mcol(void **sources, float *weights,
                              float *sub_weights, int count, void *dest)
@@ -433,6 +505,8 @@ static void layerDefault_mcol(void *data, int count)
 		mcol[i] = default_mcol;
 }
 
+
+
 const LayerTypeInfo LAYERTYPEINFO[CD_NUMTYPES] = {
 	{sizeof(MVert), "MVert", 1, NULL, NULL, NULL, NULL, NULL, NULL},
 	{sizeof(MSticky), "MSticky", 1, NULL, NULL, NULL, layerInterp_msticky, NULL,
@@ -457,8 +531,8 @@ const LayerTypeInfo LAYERTYPEINFO[CD_NUMTYPES] = {
 	 layerInterp_origspace_face, layerSwap_origspace_face, layerDefault_origspace_face},
 	{sizeof(float)*3, "", 0, NULL, NULL, NULL, NULL, NULL, NULL},
 	{sizeof(MTexPoly), "MTexPoly", 1, "Face Texture", NULL, NULL, NULL, NULL, NULL},
-	{sizeof(MLoopUV), "MLoopUV", 1, "UV coord", NULL, NULL, NULL, NULL, NULL},
-	{sizeof(MLoopCol), "MLoopCol", 1, "Col", NULL, NULL, NULL, NULL, NULL} 
+	{sizeof(MLoopUV), "MLoopUV", 1, "UV coord", NULL, NULL, layerInterp_mloopuv, NULL, NULL},
+	{sizeof(MLoopCol), "MLoopCol", 1, "Col", NULL, NULL, layerInterp_mloopcol, NULL, layerDefault_mloopcol} 
 };
 
 const char *LAYERTYPENAMES[CD_NUMTYPES] = {
@@ -480,7 +554,11 @@ const CustomDataMask CD_MASK_DERIVEDMESH =
 	CD_MASK_MCOL | CD_MASK_ORIGINDEX | CD_MASK_PROP_FLT | CD_MASK_PROP_INT |
 	CD_MASK_PROP_STR | CD_MASK_ORIGSPACE | CD_MASK_ORCO;
 const CustomDataMask CD_MASK_BMESH = 
-	CD_MASK_MDEFORMVERT | CD_MASK_MTFACE | CD_MASK_MCOL;
+	CD_MASK_MSTICKY | CD_MASK_MDEFORMVERT | CD_MASK_PROP_FLT | CD_MASK_PROP_INT | CD_MASK_PROP_STR;
+const CustomDataMask CD_MASK_FACECORNERS =
+	CD_MASK_MTFACE | CD_MASK_MCOL | CD_MASK_MTEXPOLY | CD_MASK_MLOOPUV |
+	CD_MASK_MLOOPCOL;
+
 
 static const LayerTypeInfo *layerType_getInfo(int type)
 {
@@ -1456,6 +1534,36 @@ void CustomData_from_em_block(const CustomData *source, CustomData *dest,
 }
 
 /*Bmesh functions*/
+
+void CustomData_to_bmeshpoly(CustomData *fdata, CustomData *pdata, CustomData *ldata)
+{
+	int i;
+	for(i=0; i < fdata->totlayer; i++){
+		if(fdata->layers[i].type == CD_MTFACE){
+			CustomData_add_layer(pdata, CD_MTEXPOLY, CD_CALLOC, &(fdata->layers[i].name), 0);
+			CustomData_add_layer(ldata, CD_MLOOPUV, CD_CALLOC, &(fdata->layers[i].name), 0);
+		}
+		else if(fdata->layers[i].type == CD_MCOL)
+			CustomData_add_layer(ldata, CD_MLOOPCOL, CD_CALLOC, &(fdata->layers[i].name), 0);
+	}		
+}
+void CustomData_from_bmeshpoly(CustomData *fdata, CustomData *pdata, CustomData *ldata){
+	int i;
+	for(i=0; i < pdata->totlayer; i++){
+		if(pdata->layers[i].type == CD_MTEXPOLY)
+			CustomData_add_layer(fdata, CD_MTFACE, CD_CALLOC, &(pdata->layers[i].name), 0);
+	}
+	for(i=0; i < ldata->totlayer; i++){
+		if(ldata->layers[i].type == CD_MLOOPCOL)
+			CustomData_add_layer(fdata, CD_MCOL, CD_CALLOC, &(ldata->layers[i].name), 0);
+	}
+}
+
+
+void CustomData_bmesh_init_pool(CustomData *data, int allocsize){
+	if(data->totlayer)data->pool = BLI_mempool_create(data->totsize, allocsize, allocsize);
+}
+
 void CustomData_bmesh_free_block(CustomData *data, void **block)
 {
     const LayerTypeInfo *typeInfo;
@@ -1484,7 +1592,7 @@ static void CustomData_bmesh_alloc_block(CustomData *data, void **block)
 		CustomData_bmesh_free_block(data, block);
 
 	if (data->totsize > 0)
-		*block = BLI_mempool_alloc(data->pool);
+		*block = BLI_mempool_calloc(data->pool);
 	else
 		*block = NULL;
 }
@@ -1601,7 +1709,6 @@ void CustomData_bmesh_interp(CustomData *data, void **src_blocks, float *weights
 	for(i = 0; i < data->totlayer; ++i) {
 		CustomDataLayer *layer = &data->layers[i];
 		const LayerTypeInfo *typeInfo = layerType_getInfo(layer->type);
-
 		if(typeInfo->interp) {
 			for(j = 0; j < count; ++j)
 				sources[j] = (char *)src_blocks[j] + layer->offset;
diff --git a/source/blender/blenlib/BLI_mempool.h b/source/blender/blenlib/BLI_mempool.h
index a706e5f3874..8b31459dd38 100644
--- a/source/blender/blenlib/BLI_mempool.h
+++ b/source/blender/blenlib/BLI_mempool.h
@@ -36,7 +36,9 @@ typedef struct BLI_mempool BLI_mempool;
 
 BLI_mempool *BLI_mempool_create(int esize, int tote, int pchunk);
 void *BLI_mempool_alloc(BLI_mempool *pool);
+void *BLI_mempool_calloc(BLI_mempool *pool);
 void BLI_mempool_free(BLI_mempool *pool, void *addr);
 void BLI_mempool_destroy(BLI_mempool *pool);
 
-#endif
\ No newline at end of file
+
+#endif
diff --git a/source/blender/blenlib/intern/BLI_mempool.c b/source/blender/blenlib/intern/BLI_mempool.c
index 7bbf0c4732e..7ac7b8b1791 100644
--- a/source/blender/blenlib/intern/BLI_mempool.c
+++ b/source/blender/blenlib/intern/BLI_mempool.c
@@ -89,7 +89,6 @@ BLI_mempool *BLI_mempool_create(int esize, int tote, int pchunk)
 	curnode->next = NULL;
 	return pool;
 }
-
 void *BLI_mempool_alloc(BLI_mempool *pool){
 	void *retval=NULL;
 	BLI_freenode *curnode=NULL;
@@ -117,6 +116,16 @@ void *BLI_mempool_alloc(BLI_mempool *pool){
 	//memset(retval, 0, pool->esize);
 	return retval;
 }
+
+void *BLI_mempool_calloc(BLI_mempool *pool){
+	void *retval=NULL;
+	retval = BLI_mempool_alloc(pool);
+	memset(retval, 0, pool->esize);
+	return retval;
+}
+
+
+
 void BLI_mempool_free(BLI_mempool *pool, void *addr){ //doesnt protect against double frees, dont be stupid!
 	BLI_freenode *newhead = addr;
 	newhead->next = pool->free;
@@ -128,4 +137,4 @@ void BLI_mempool_destroy(BLI_mempool *pool)
 	for(mpchunk = pool->chunks.first; mpchunk; mpchunk = mpchunk->next) MEM_freeN(mpchunk->data);
 	BLI_freelistN(&(pool->chunks));
 	MEM_freeN(pool);
-}
\ No newline at end of file
+}