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A small improvement to Subdivide multi smooth. It is not perfect yet :( but its better.

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BUT! Try doing a EdgeRing (CTRL-ALT-RMB in edge mode) select and a subdivide smooth multi...That works ok (read loopcut multi smooth)  :)
This commit is contained in:
Johnny Matthews
2005-08-05 15:08:43 +00:00
parent 324c7e9ca4
commit 46a8c11064
1 changed files with 39 additions and 58 deletions
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97
source/blender/src/editmesh_tools.c
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@@ -1102,9 +1102,9 @@ void fill_mesh(void)
#define FACENEW 2
#define EDGEINNER 4
static void alter_co(float* co,EditEdge *edge,float rad,int beauty)
static void alter_co(float* co,EditEdge *edge,float rad,int beauty,float perc)
{
float vec1[3],vec2[3],fac,vec3[3],vec4[4],len,ang;
float vec1[3],fac;
if(rad > 0.0) { /* subdivide sphere */
Normalise(co);
@@ -1121,57 +1121,40 @@ static void alter_co(float* co,EditEdge *edge,float rad,int beauty)
}
if(beauty & B_SMOOTH) {
// We are using the 2 ends of the edge vertex normals to
// determine the arc for the smooth
// This figures our smooth radius for this edge
ang = acos(MTC_dot3Float(edge->v1->no,edge->v2->no))/2;
len = VecLenf(edge->v1->co,edge->v2->co)/2;
rad = len/sin(ang);
// Now find the centerpoint of the smooth radius
// Need to calculate and add the offset.
//
// L1 = v1->co + a v1->no
// L2 = v2->co + b v2->no
//
// Assume they intersect
//
// Set equal
//
// v1->co + a v1->no = v2->co + b v2->no
//
// a v1->no = (v2->co - v1->co) + b v2->no
//
// Cross v2->no with both sides
//
// a (v1->no X v2->no) = (v2->co - v1->co) X v2->no
// a (vec1) = vec2 X v2->no
// a vec1 = vec3
// a = length(vec3) / length(vec1)
//
// Now plug a into L1 = v1->co + a v1->no, this is intersection
Crossf(vec1,edge->v1->no,edge->v2->no);
VecSubf(vec2,edge->v2->co,edge->v1->co);
Crossf(vec3,vec2,edge->v2->no);
len = VecLength(vec3)/VecLength(vec1);
float len, fac, nor[3], nor1[3], nor2[3];
float smoothperc = 0.25;
VecSubf(nor, edge->v1->co, edge->v2->co);
len= 0.5f*Normalise(nor);
VECCOPY(vec4,edge->v1->no);
VecMulf(vec4,len);
VecAddf(vec1,edge->v1->co,vec4);
// vec1 *should* be the smooth center offset.
//VecSubf(co,co,vec1);
VECCOPY(nor1, edge->v1->no);
VECCOPY(nor2, edge->v2->no);
/* cosine angle */
fac= nor[0]*nor1[0] + nor[1]*nor1[1] + nor[2]*nor1[2] ;
vec1[0]= fac*nor1[0];
vec1[1]= fac*nor1[1];
vec1[2]= fac*nor1[2];
/* cosine angle */
fac= -nor[0]*nor2[0] - nor[1]*nor2[1] - nor[2]*nor2[2] ;
vec1[0]+= fac*nor2[0];
vec1[1]+= fac*nor2[1];
vec1[2]+= fac*nor2[2];
if(perc > .5){
perc = 1-perc;
}
Normalise(co);
co[0]*= rad;
co[1]*= rad;
co[2]*= rad;
//VecAddf(co,co,vec1);
vec1[0]*= perc*len;
vec1[1]*= perc*len;
vec1[2]*= perc*len;
co[0] += vec1[0];
co[1] += vec1[1];
co[2] += vec1[2];
}
}
@@ -1937,11 +1920,10 @@ static void fill_quad_quadruple(EditFace *efa, struct GHash *gh, int numcuts,flo
temp.v2 = innerverts[i][numcuts+1];
// Call alter co for things like fractal and smooth
alter_co(co,&temp,rad,beauty);
alter_co(co,&temp,rad,beauty,j/(float)(numcuts+1));
innerverts[i][(numcuts+1)-j] = addvertlist(co);
//VECCOPY(innerverts[i][(numcuts+1)-j]->no,nor);
}
}
@@ -2045,10 +2027,9 @@ static void fill_tri_triple(EditFace *efa, struct GHash *gh, int numcuts,float r
temp.v1 = innerverts[i][0];
temp.v2 = innerverts[i][(numcuts+1)-i];
alter_co(co,&temp,rad,beauty);
alter_co(co,&temp,rad,beauty,j/(float)((numcuts+1)-i));
innerverts[i][((numcuts+1)-i)-j] = addvertlist(co);
//VECCOPY(innerverts[i][((numcuts+1)-i)-j]->no,nor);
innerverts[i][((numcuts+1)-i)-j] = addvertlist(co);
}
}
@@ -2104,7 +2085,7 @@ static EditVert *subdivideedgenum(EditEdge *edge,int curpoint,int totpoint,float
co[2] = (edge->v2->co[2]-edge->v1->co[2])*(curpoint/(float)(totpoint+1))+edge->v1->co[2];
}
alter_co(co,edge,rad,beauty);
alter_co(co,edge,rad,beauty,curpoint/(float)(totpoint+1));
ev = addvertlist(co);
ev->f = edge->v1->f;
@@ -2235,7 +2216,7 @@ void esubdivideflag(int flag, float rad, int beauty, int numcuts, int seltype)
}
}
DAG_object_flush_update(G.scene, G.obedit, OB_RECALC_DATA);
// Now for each face in the mesh we need to figure out How many edges were cut
// and which filling method to use for that face
for(ef = em->faces.first;ef;ef = ef->next){