FGFS-4.1/OpenSceneGraph
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Improved view dependent camera positioning

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This commit is contained in:
Robert Osfield
2007-05-17 15:39:33 +00:00
parent 9ba424e8b2
commit 851df77673
1 changed files with 13 additions and 2 deletions
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15
src/osgSim/OverlayNode.cpp
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@@ -544,9 +544,19 @@ void OverlayNode::traverse_VIEW_DEPENDENT_WITH_ORTHOGRAPHIC_OVERLAY(osg::NodeVis
double bs_far = bs_center+bs.radius();
osg::notify(osg::NOTICE)<<" bs_near="<<bs_near<<" bs_far="<<bs_far<<std::endl;
osg::notify(osg::NOTICE)<<" bs.radius()="<<bs.radius()<<std::endl;
#if 0
camera->setProjectionMatrixAsOrtho(min_side,max_side,min_up,max_up,bs_near+bs.center().length(),bs_far+bs.center().length());
camera->setViewMatrixAsLookAt(osg::Vec3d(0.0f,0.0f,0.0f), bs.center(), upVector);
#else
camera->setProjectionMatrixAsOrtho(-bs.radius(),bs.radius(),-bs.radius(),bs.radius(),-bs.radius(),bs.radius());
camera->setViewMatrixAsLookAt(bs.center(), osg::Vec3d(0.0f,0.0f,0.0f), osg::Vec3(0.0,0.0,1.0));
#endif
camera->setProjectionMatrixAsOrtho(min_side,max_side,min_up,max_up,bs_near,bs_far);
camera->setViewMatrixAsLookAt(center, center+lookVector, upVector);
// compute the matrix which takes a vertex from local coords into tex coords
// will use this later to specify osg::TexGen..
@@ -556,6 +566,7 @@ void OverlayNode::traverse_VIEW_DEPENDENT_WITH_ORTHOGRAPHIC_OVERLAY(osg::NodeVis
osg::Matrix::translate(1.0,1.0,1.0) *
osg::Matrix::scale(0.5,0.5,0.5);
//overlayData._texgenNode->setReferenceFrame(osg::TexGenNode::ABSOLUTE_RF);
overlayData._texgenNode->getTexGen()->setMode(osg::TexGen::EYE_LINEAR);
overlayData._texgenNode->getTexGen()->setPlanesFromMatrix(MVPT);