[Bf-blender-cvs] SVN commit: /data/svn/bf-blender [15214] branches/apricot/source/blender: Topology Mirror.

Campbell Barton ideasman42 at gmail.com
Fri Jun 13 14:34:26 CEST 2008


Revision: 15214
          http://projects.blender.org/plugins/scmsvn/viewcvs.php?view=rev&root=bf-blender&revision=15214
Author:   campbellbarton
Date:     2008-06-13 14:33:35 +0200 (Fri, 13 Jun 2008)

Log Message:
-----------
Topology Mirror. Find mirror verts based on topology, ignoring vertex location, 
Currently works with transform and weight painting.
Tested with 5 peach characters and Suzanne (without eyes), rely's on both verts being uniquely positioned in relation to the surrounding edge topology. useful when weight painting asymmetric characters.

Modified Paths:
--------------
    branches/apricot/source/blender/include/BIF_meshtools.h
    branches/apricot/source/blender/include/blendef.h
    branches/apricot/source/blender/src/buttons_editing.c
    branches/apricot/source/blender/src/editmesh.c
    branches/apricot/source/blender/src/editmesh_mods.c
    branches/apricot/source/blender/src/meshtools.c
    branches/apricot/source/blender/src/transform_conversions.c
    branches/apricot/source/blender/src/vpaint.c

Modified: branches/apricot/source/blender/include/BIF_meshtools.h
===================================================================
--- branches/apricot/source/blender/include/BIF_meshtools.h	2008-06-13 02:20:09 UTC (rev 15213)
+++ branches/apricot/source/blender/include/BIF_meshtools.h	2008-06-13 12:33:35 UTC (rev 15214)
@@ -41,8 +41,9 @@
 extern void objects_bake_render(short event, char **error_msg);
 
 extern long mesh_octree_table(struct Object *ob, float *co, char mode);
+extern long mesh_mirrtopo_table(struct Object *ob, char mode);
 extern int mesh_get_x_mirror_vert(struct Object *ob, int index);
-extern struct EditVert *editmesh_get_x_mirror_vert(struct Object *ob, float *co);
+extern struct EditVert *editmesh_get_x_mirror_vert(struct Object *ob, struct EditVert *eve);
 extern float *editmesh_get_mirror_uv(int axis, float *co, float *mirrCent, float *face_cent);
 extern int *mesh_get_x_mirror_faces(struct Object *ob);
 

Modified: branches/apricot/source/blender/include/blendef.h
===================================================================
--- branches/apricot/source/blender/include/blendef.h	2008-06-13 02:20:09 UTC (rev 15213)
+++ branches/apricot/source/blender/include/blendef.h	2008-06-13 12:33:35 UTC (rev 15214)
@@ -446,7 +446,9 @@
 #define B_JOINTRIA_VCOL		0X400
 #define B_JOINTRIA_SHARP	0X800
 #define B_JOINTRIA_MAT		0X1000
+#define B_MIRROR_TOPO		0X2000 /* Topology Mirroring, disabled by default */
 
+
 /* DISPLAYMODE */
 #define R_DISPLAYIMAGE	0
 #define R_DISPLAYWIN	1

Modified: branches/apricot/source/blender/src/buttons_editing.c
===================================================================
--- branches/apricot/source/blender/src/buttons_editing.c	2008-06-13 02:20:09 UTC (rev 15213)
+++ branches/apricot/source/blender/src/buttons_editing.c	2008-06-13 12:33:35 UTC (rev 15214)
@@ -5086,7 +5086,8 @@
 	
 	uiBlockBeginAlign(block);
 	uiDefButBitI(block, TOG, G_ALLEDGES, 0, "All Edges",			1125, 22,150,19, &G.f, 0, 0, 0, 0, "Displays all edges in object mode without optimization");
-	uiDefButBitS(block, TOG, B_MESH_X_MIRROR, B_DIFF, "X-axis mirror",1125,0,150,19, &G.scene->toolsettings->editbutflag, 0, 0, 0, 0, "While using transforms, mirrors the transformation");
+	uiDefButBitS(block, TOG, B_MESH_X_MIRROR, B_DIFF, "X-Axis Mirror",1125,0,80,19, &G.scene->toolsettings->editbutflag, 0, 0, 0, 0, "While using transforms, mirrors the transformation");
+	uiDefButBitS(block, TOG, B_MIRROR_TOPO, B_DIFF, "Topology",1125+80,0,70,19, &G.scene->toolsettings->editbutflag, 0, 0, 0, 0, "Calculate mirror from mesh topology");	
 	uiBlockEndAlign(block);
 }
 
@@ -6077,7 +6078,8 @@
 	if(ob) {
 		uiBlockBeginAlign(block);
 		uiDefButBitS(block, TOG, VP_ONLYVGROUP, REDRAWVIEW3D, "Vgroup",		10,0,100,19, &Gwp.flag, 0, 0, 0, 0, "Only paint on vertices in the selected vertex group.");
-		uiDefButBitS(block, TOG, VP_MIRROR_X, REDRAWVIEW3D, "X-Mirror",	110,0,100,19, &Gwp.flag, 0, 0, 0, 0, "Mirrored Paint, applying on mirrored Weight Group name");
+		uiDefButBitS(block, TOG, VP_MIRROR_X, REDRAWVIEW3D, "X-Mirror",	110,0,80,19, &Gwp.flag, 0, 0, 0, 0, "Mirrored Paint, applying on mirrored Weight Group name");
+		uiDefButBitS(block, TOG, B_MIRROR_TOPO, B_DIFF, "T",110+80,0,20,19, &G.scene->toolsettings->editbutflag, 0, 0, 0, 0, "Calculate mirror from mesh topology"); /* TODO - Put this in a nicer place */
 		uiDefBut(block, BUT, B_CLR_WPAINT, "Clear",					210,0,100,19, NULL, 0, 0, 0, 0, "Removes reference to this deform group from all vertices");
 		uiBlockEndAlign(block);
 	}

Modified: branches/apricot/source/blender/src/editmesh.c
===================================================================
--- branches/apricot/source/blender/src/editmesh.c	2008-06-13 02:20:09 UTC (rev 15213)
+++ branches/apricot/source/blender/src/editmesh.c	2008-06-13 12:33:35 UTC (rev 15214)
@@ -627,6 +627,7 @@
 	em->allfaces= em->curface= NULL;
 	
 	mesh_octree_table(NULL, NULL, 'e');
+	mesh_mirrtopo_table(NULL, 'e');
 	
 	G.totvert= G.totface= 0;
 

Modified: branches/apricot/source/blender/src/editmesh_mods.c
===================================================================
--- branches/apricot/source/blender/src/editmesh_mods.c	2008-06-13 02:20:09 UTC (rev 15213)
+++ branches/apricot/source/blender/src/editmesh_mods.c	2008-06-13 12:33:35 UTC (rev 15214)
@@ -120,7 +120,7 @@
 		
 		for(eve= em->verts.first; eve; eve= eve->next) {
 			if(eve->f & SELECT) {
-				v1= editmesh_get_x_mirror_vert(G.obedit, eve->co);
+				v1= editmesh_get_x_mirror_vert(G.obedit, eve);
 				if(v1) {
 					eve->f &= ~SELECT;
 					v1->f |= SELECT;
@@ -4249,7 +4249,7 @@
 			if(eve->f1) {
 				
 				if (G.scene->toolsettings->editbutflag & B_MESH_X_MIRROR) {
-					eve_mir= editmesh_get_x_mirror_vert(G.obedit, eve->co);
+					eve_mir= editmesh_get_x_mirror_vert(G.obedit, eve);
 				}
 				
 				adr = eve->tmp.p;

Modified: branches/apricot/source/blender/src/meshtools.c
===================================================================
--- branches/apricot/source/blender/src/meshtools.c	2008-06-13 02:20:09 UTC (rev 15213)
+++ branches/apricot/source/blender/src/meshtools.c	2008-06-13 12:33:35 UTC (rev 15214)
@@ -837,8 +837,192 @@
 	return 0;
 }
 
-int mesh_get_x_mirror_vert(Object *ob, int index)
+
+/* ********************* MESH VERTEX MIRR TOPO LOOKUP *************** */
+
+#define MIRRHASH_TYPE int
+
+typedef struct MirrTopoPair {
+	long hash;
+	int vIndex;
+} MirrTopoPair;
+
+/* sort faces on view axis */
+static int MirrTopo_long_sort(const void *l1, const void *l2)
+{	
+	if(			(MIRRHASH_TYPE)l1 > (MIRRHASH_TYPE)l2 ) return  1;
+	else if(	(MIRRHASH_TYPE)l1 < (MIRRHASH_TYPE)l2 ) return -1;
+	return 0;
+}
+
+static int MirrTopo_item_sort(const void *v1, const void *v2)
 {
+	if(			((MirrTopoPair *)v1)->hash > ((MirrTopoPair *)v2)->hash ) return  1;
+	else if(	((MirrTopoPair *)v1)->hash < ((MirrTopoPair *)v2)->hash ) return -1;
+	return 0;
+}
+
+static long *mesh_topo_lookup = NULL;
+static int  mesh_topo_lookup_tot = -1;
+
+/* mode is 's' start, or 'e' end, or 'u' use */
+/* if end, ob can be NULL */
+long mesh_mirrtopo_table(Object *ob, char mode)
+{
+	if(mode=='u') {		/* use table */
+		Mesh *me= ob->data;
+		if (!mesh_topo_lookup || (me->totvert != mesh_topo_lookup_tot)) {
+			mesh_mirrtopo_table(ob, 's');
+		}
+	} else if(mode=='s') { /* start table */
+		Mesh *me= ob->data;
+		MEdge *medge;
+		
+		/* editmode*/
+		EditEdge *eed;
+		
+		int a, last, totvert;
+		int totUnique= -1, totUniqueOld= -1;
+
+
+		MIRRHASH_TYPE *MirrTopoHash = NULL;
+		MIRRHASH_TYPE *MirrTopoHash_Prev = NULL;
+		MirrTopoPair *MirrTopoPairs;
+		
+		/* reallocate if needed */
+		if (mesh_topo_lookup) {
+			MEM_freeN(mesh_topo_lookup);
+			mesh_topo_lookup = NULL;
+		}
+
+		if(ob==G.obedit) {
+			EditVert *eve;
+			totvert= 0;
+			for(eve= G.editMesh->verts.first; eve; eve= eve->next) {
+				eve->tmp.l = totvert++;
+			}
+		} else {
+			totvert = me->totvert;
+		}
+		
+		MirrTopoHash = MEM_callocN( totvert * sizeof(MIRRHASH_TYPE), "TopoMirr" );
+		
+		/* Initialize the vert-edge-user counts used to detect unique topology */
+		if(ob==G.obedit) {
+			for(eed=G.editMesh->edges.first; eed; eed= eed->next) {
+				MirrTopoHash[eed->v1->tmp.l]++;
+				MirrTopoHash[eed->v2->tmp.l]++;
+			}
+		} else {
+			for(a=0, medge=me->medge; a<me->totedge; a++, medge++) {
+				MirrTopoHash[medge->v1]++;
+				MirrTopoHash[medge->v2]++;
+			}
+		}
+		
+		MirrTopoHash_Prev = MEM_dupallocN( MirrTopoHash );
+		
+		totUniqueOld = -1;
+		while(1) {
+			/* use the number of edges per vert to give verts unique topology IDs */
+			
+			if(ob==G.obedit) {
+				for(eed=G.editMesh->edges.first; eed; eed= eed->next) {
+					MirrTopoHash[eed->v1->tmp.l] += MirrTopoHash_Prev[eed->v2->tmp.l];
+					MirrTopoHash[eed->v2->tmp.l] += MirrTopoHash_Prev[eed->v1->tmp.l];
+				}
+			} else {
+				for(a=0, medge=me->medge; a<me->totedge; a++, medge++) {
+					/* This can make realy big numbers, wrapping around here is fine */
+					MirrTopoHash[medge->v1] += MirrTopoHash_Prev[medge->v2];
+					MirrTopoHash[medge->v2] += MirrTopoHash_Prev[medge->v1];
+				}
+			}
+			memcpy(MirrTopoHash_Prev, MirrTopoHash, sizeof(MIRRHASH_TYPE) * totvert);
+		
+			/* sort so we can count unique values */
+			qsort(MirrTopoHash_Prev, totvert, sizeof(MIRRHASH_TYPE), MirrTopo_long_sort);
+		
+			totUnique = 1; /* account for skiping the first value */
+			for(a=1; a<totvert; a++) {		
+				if (MirrTopoHash_Prev[a-1] != MirrTopoHash_Prev[a]) {
+					totUnique++;
+				}
+			}
+			
+			if (totUnique <= totUniqueOld) {
+				/* Finish searching for unique valus when 1 loop dosnt give a
+				 * higher number of unique values compared to the previous loop */
+				break;
+			} else {
+				totUniqueOld = totUnique;
+			}
+			/* Copy the hash calculated this iter, so we can use them next time */
+			memcpy(MirrTopoHash_Prev, MirrTopoHash, sizeof(MIRRHASH_TYPE) * totvert);
+		}
+		
+		/* Hash/Index pairs are needed for sorting to find index pairs */
+		MirrTopoPairs= MEM_callocN( sizeof(MirrTopoPair) * totvert, "MirrTopoPairs");
+		
+		/* since we are looping through verts, initialize these values here too */
+		mesh_topo_lookup = MEM_mallocN( totvert * sizeof(long), "mesh_topo_lookup" );
+		
+		if(ob==G.obedit) {
+			EM_init_index_arrays(1,0,0);
+		}
+		
+		
+		for(a=0; a<totvert; a++) {
+			MirrTopoPairs[a].hash= MirrTopoHash[a];
+			MirrTopoPairs[a].vIndex = a;
+			
+			/* initialize lookup */
+			mesh_topo_lookup[a] = -1;
+		}
+		
+		qsort(MirrTopoPairs, totvert, sizeof(MirrTopoPair), MirrTopo_item_sort);
+
+		/* Since the loop starts at 2, we must define the last index where the hash's differ */
+		last = ((totvert >= 2) && (MirrTopoPairs[0].hash == MirrTopoPairs[1].hash)) ? 0 : 1;
+		
+		/* Get the pairs out of the sorted hashes, note, totvert+1 means we can use the previous 2,
+		 * but you cant ever access the last 'a' index of MirrTopoPairs */
+		for(a=2; a < totvert+1; a++) {
+			/* printf("I %d %ld %d\n", (a-last), MirrTopoPairs[a  ].hash, MirrTopoPairs[a  ].vIndex ); */
+			if ((a==totvert) || (MirrTopoPairs[a-1].hash != MirrTopoPairs[a].hash)) {
+				if (a-last==2) {
+					if(ob==G.obedit) {
+						mesh_topo_lookup[MirrTopoPairs[a-1].vIndex] =	(long)EM_get_vert_for_index(MirrTopoPairs[a-2].vIndex);
+						mesh_topo_lookup[MirrTopoPairs[a-2].vIndex] =	(long)EM_get_vert_for_index(MirrTopoPairs[a-1].vIndex);
+					} else {
+						mesh_topo_lookup[MirrTopoPairs[a-1].vIndex] =	MirrTopoPairs[a-2].vIndex;

@@ Diff output truncated at 10240 characters. @@




More information about the Bf-blender-cvs mailing list