FGFS-4.1/OpenSceneGraph
4
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Introduce new Matrix::invert() implementation from Ravi Mathur, with tweaks

Browse Source 
by Robert Osfield.
This commit is contained in:
Robert Osfield
2004-01-12 14:22:18 +00:00
parent c3b888c862
commit 4765c8744d
4 changed files with 209 additions and 12 deletions
Download Patch File Download Diff File Expand all files Collapse all files

13
src/osg/CullStack.cpp
View File

@@ -216,10 +216,11 @@ void CullStack::pushModelViewMatrix(RefMatrix* matrix)
pushCullingSet();
//osg::Timer timer;
#if 1
osg::Vec3 slow_eyepoint(osg::Matrix::inverse(*matrix).getTrans());
_eyePointStack.push_back(slow_eyepoint);
#else
//osg::Timer_t tick_1 = timer.tick();
// fast method for computing the eye point in local coords which doesn't require the inverse matrix.
const float x_0 = (*matrix)(0,0);
const float x_1 = (*matrix)(1,0);
@@ -272,9 +273,6 @@ void CullStack::pushModelViewMatrix(RefMatrix* matrix)
x_1*x_scale + y_1*y_scale + z_1*z_scale,
x_2*x_scale + y_2*y_scale + z_2*z_scale);
_eyePointStack.push_back(fast_eyepoint);
// std::cout<<"fast path "<<*matrix<<std::endl;
}
else
{
@@ -285,10 +283,9 @@ void CullStack::pushModelViewMatrix(RefMatrix* matrix)
osg::Vec3 slow_eyepoint(osg::Matrix::inverse(*matrix).getTrans());
_eyePointStack.push_back(slow_eyepoint);
//std::cout<<"slow path "<<*matrix<<std::endl;
}
#endif
osg::Vec3 lookVector = getLookVectorLocal();
_bbCornerFar = (lookVector.x()>=0?1:0) |