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allow scales to zero for BoundingLines

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David Rose 2001-07-09 23:14:14 +00:00
parent fdda2ae7b6
commit a16f99c74c
1 changed files with 5 additions and 1 deletions
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6
panda/src/mathutil/boundingLine.cxx
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@ -43,7 +43,11 @@ xform(const LMatrix4f &mat) {
if (!is_empty() && !is_infinite()) { if (!is_empty() && !is_infinite()) {
_origin = _origin * mat; _origin = _origin * mat;
_vector = _vector * mat; _vector = _vector * mat;
_vector.normalize(); if (!_vector.normalize()) {
// If we just scaled the line down to nothing, it becomes an
// empty volume.
_flags |= F_empty;
}
} }
} }