FGFS-4.1/OpenSceneGraph
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Added new osg::Projection node, and osgUtil::NewCullVisitor which are work

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in progress for the new support for controlling the projection matrix from
within the scene graph.

Also Added osg::State::getClippingVolume(), getProjectionMatrix() and
getModelViewMatrix() with allows drawables to access the current projection,
and model view matrices and the view frustum in local coords to the drawable.
This commit is contained in:
Robert Osfield
2002-03-31 16:40:44 +00:00
parent 2786e4c083
commit 3351306d80
24 changed files with 1990 additions and 144 deletions
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20
src/osgUtil/SceneView.cpp
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@@ -250,10 +250,10 @@ void SceneView::cullStage(osg::Camera* camera, osgUtil::CullVisitor* cullVisitor
cullVisitor->setRenderGraph(rendergraph);
cullVisitor->setRenderStage(renderStage);
// SandB
//now make it compute "clipping directions" needed for detailed culling
if(cullVisitor->getDetailedCulling())
cullVisitor->calcClippingDirections();//only once pre frame
// // SandB
// //now make it compute "clipping directions" needed for detailed culling
// if(cullVisitor->getDetailedCulling())
// cullVisitor->calcClippingDirections();//only once pre frame
renderStage->reset();
@@ -285,7 +285,7 @@ void SceneView::cullStage(osg::Camera* camera, osgUtil::CullVisitor* cullVisitor
if (_globalState.valid()) cullVisitor->pushStateSet(_globalState.get());
cullVisitor->pushCullViewState(modelview);
cullVisitor->pushCullViewState_ModelView(modelview);
// traverse the scene graph to generate the rendergraph.
@@ -331,13 +331,13 @@ void SceneView::cullStage(osg::Camera* camera, osgUtil::CullVisitor* cullVisitor
_far_plane *= 1.05;
_near_plane *= 0.95;
// if required clamp the near plane to prevent negative or near zero
// near planes.
if(!cullVisitor->getDetailedCulling())
{
// // if required clamp the near plane to prevent negative or near zero
// // near planes.
// if(!cullVisitor->getDetailedCulling())
// {
float min_near_plane = _far_plane*0.0005f;
if (_near_plane<min_near_plane) _near_plane=min_near_plane;
}
// }
}
else
{