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This commit prevents the loopcut tool from selecting a starting edge which isn't part of any visible faces. Since the tool requires at least 1 face to cut, this does not limit tool functionality and prevents blender from crashing.

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Fixes bug #1331
This commit is contained in:
Johnny Matthews 2004-07-24 05:32:08 +00:00
parent 2b2d794533
commit bdd615b682
1 changed files with 19 additions and 9 deletions
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28
source/blender/src/editmesh.c
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@ -2299,25 +2299,35 @@ void loopoperations(char mode)
start=findnearestvisibleedge();
/* If the edge doesn't belong to a face, it's not a valid starting edge */
/* and only accept starting edge if it is part of at least one visible face */
if(start){
start->f |= 16;
evl=em->faces.first;
while(evl){
if(evl->e1->f & 16){
noface=0;
evl->e1->f &= ~16;
if(evl->e1->f & 16){
/* since this edge is on the face, check if the face has any hidden verts */
if( !evl->v1->h && !evl->v2->h && !evl->v3->h && (evl->v4 && !evl->v4->h) ){
noface=0;
evl->e1->f &= ~16;
}
}
else if(evl->e2->f & 16){
noface=0;
evl->e2->f &= ~16;
if( !evl->v1->h && !evl->v2->h && !evl->v3->h && (evl->v4 && !evl->v4->h) ){
noface=0;
evl->e2->f &= ~16;
}
}
else if(evl->e3->f & 16){
noface=0;
evl->e3->f &= ~16;
if( !evl->v1->h && !evl->v2->h && !evl->v3->h && (evl->v4 && !evl->v4->h) ){
noface=0;
evl->e3->f &= ~16;
}
}
else if(evl->e4 && (evl->e4->f & 16)){
noface=0;
evl->e4->f &= ~16;
if( !evl->v1->h && !evl->v2->h && !evl->v3->h && (evl->v4 && !evl->v4->h) ){
noface=0;
evl->e4->f &= ~16;
}
}
evl=evl->next;