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Modified the partial ssg tree deletion algorithm so it correctly preserves

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subtrees that may be connected into the scene graph multiple times.
(i.e.  our random ground cover objects.)
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curt 2002-07-26 22:23:49 +00:00
parent f05e8f95e2
commit dc40db3b33
1 changed files with 1 additions and 1 deletions
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src/Scenery/tileentry.cxx
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@ -702,7 +702,7 @@ static int fgPartialFreeSSGtree( ssgBranch *b, int n ) {
int num_deletes = 0;
for ( int i = 0; i < b->getNumKids(); ++i ) {
ssgEntity *kid = b->getKid(i);
if ( kid->isAKindOf( ssgTypeBranch() ) ) {
if ( kid->isAKindOf( ssgTypeBranch() ) && kid->getRef() <= 1 ) {
int result = fgPartialFreeSSGtree( (ssgBranch *)kid, n );
num_deletes += result;
n -= result;