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fix short-circuit of non-affine invert computation

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David Rose 2004-12-14 01:59:42 +00:00
parent 6495232f82
commit 948278ee43
1 changed files with 3 additions and 6 deletions
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9
panda/src/linmath/lmatrix4_src.I
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@ -1051,14 +1051,11 @@ transpose_in_place() {
// successfully inverted, false if the was a
// singularity.
////////////////////////////////////////////////////////////////////
// bugbug: we could optimize this for rotation/scale/translation matrices
// (transpose upper 3x3 and take negative of translation component)
INLINE_LINMATH bool FLOATNAME(LMatrix4)::
invert_from(const FLOATNAME(LMatrix4) &other) {
if (IS_NEARLY_EQUAL(other._m.m._30, 0.0f) &&
IS_NEARLY_EQUAL(other._m.m._31, 0.0f) &&
IS_NEARLY_EQUAL(other._m.m._32, 0.0f) &&
if (IS_NEARLY_EQUAL(other._m.m._03, 0.0f) &&
IS_NEARLY_EQUAL(other._m.m._13, 0.0f) &&
IS_NEARLY_EQUAL(other._m.m._23, 0.0f) &&
IS_NEARLY_EQUAL(other._m.m._33, 1.0f)) {
return invert_affine_from(other);
}