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Can often copy instead of multiply matrix in CTriangleSelector

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If we already know we start with an identity matrix (which is usually the case) then copy will do.
Also unifying code to create matrix of different CTriangleSelector::getTriangles functions


git-svn-id: svn://svn.code.sf.net/p/irrlicht/code/trunk@6578 dfc29bdd-3216-0410-991c-e03cc46cb475
This commit is contained in:
cutealien
2023-12-13 15:05:08 +00:00
parent 66d189ce63
commit 70b2e3a255
2 changed files with 16 additions and 6 deletions
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20
source/Irrlicht/CTriangleSelector.cpp
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@ -272,11 +272,17 @@ void CTriangleSelector::getTriangles(core::triangle3df* triangles,
if (cnt > (u32)arraySize)
cnt = (u32)arraySize;
core::matrix4 mat;
core::matrix4 mat(core::matrix4::EM4CONST_NOTHING);
if (transform)
{
mat = *transform;
if (SceneNode&&useNodeTransform)
mat *= SceneNode->getAbsoluteTransformation();
if (SceneNode && useNodeTransform)
mat *= SceneNode->getAbsoluteTransformation();
}
else if (SceneNode && useNodeTransform)
mat = SceneNode->getAbsoluteTransformation();
else
mat.makeIdentity();
for (u32 i=0; i<cnt; ++i)
{
@ -338,11 +344,15 @@ void CTriangleSelector::getTriangles(core::triangle3df* triangles,
core::matrix4 mat(core::matrix4::EM4CONST_NOTHING);
if (transform)
{
mat = *transform;
if (SceneNode && useNodeTransform)
mat *= SceneNode->getAbsoluteTransformation();
}
else if (SceneNode && useNodeTransform)
mat = SceneNode->getAbsoluteTransformation();
else
mat.makeIdentity();
if (SceneNode && useNodeTransform)
mat *= SceneNode->getAbsoluteTransformation();
core::aabbox3df tBox(box);
core::matrix4 invMat(core::matrix4::EM4CONST_NOTHING);