FGFS-4.1/OpenSceneGraph
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Set up new view dependent overlay technique control methods

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This commit is contained in:
Robert Osfield
2007-05-14 20:23:10 +00:00
parent 55bd6129f4
commit e41cd46da8
3 changed files with 110 additions and 12 deletions
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27
include/osgSim/OverlayNode
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@@ -28,7 +28,15 @@ namespace osgSim {
class OSGSIM_EXPORT OverlayNode : public osg::Group
{
public :
OverlayNode();
enum OverlayTechnique
{
OBJECT_DEPENDENT_WITH_ORTHOGRAPHIC_OVERLAY,
VIEW_DEPENDENT_WITH_ORTHOGRAPHIC_OVERLAY,
VIEW_DEPENDENT_WITH_PERSPECTIVE_OVERLAY,
};
OverlayNode(OverlayTechnique technique=OBJECT_DEPENDENT_WITH_ORTHOGRAPHIC_OVERLAY);
OverlayNode(const OverlayNode& es, const osg::CopyOp& copyop=osg::CopyOp::SHALLOW_COPY);
@@ -36,6 +44,11 @@ class OSGSIM_EXPORT OverlayNode : public osg::Group
virtual void traverse(osg::NodeVisitor& nv);
void setOverlayTechnique(OverlayTechnique technique);
OverlayTechnique getOverlayTechnique() { return _overlayTechnique; }
/** Set the overlay subgraph which will be rendered to texture.*/
void setOverlaySubgraph(osg::Node* node);
@@ -60,7 +73,7 @@ class OSGSIM_EXPORT OverlayNode : public osg::Group
void setOverlayClearColor(const osg::Vec4& color);
/** Get the clear color to use when rendering the overlay subgraph.*/
const osg::Vec4& getOverlayClearColor() const;
osg::Vec4 getOverlayClearColor() const;
/** Set the TexEnv mode used to combine the overlay texture with the base color/texture of the OverlayNode's decorate subgraph.*/
void setTexEnvMode(GLenum mode);
@@ -103,13 +116,23 @@ class OSGSIM_EXPORT OverlayNode : public osg::Group
virtual ~OverlayNode() {}
void init();
void init_OBJECT_DEPENDENT_WITH_ORTHOGRAPHIC_OVERLAY();
void init_VIEW_DEPENDENT_WITH_ORTHOGRAPHIC_OVERLAY();
void init_VIEW_DEPENDENT_WITH_PERSPECTIVE_OVERLAY();
void traverse_OBJECT_DEPENDENT_WITH_ORTHOGRAPHIC_OVERLAY(osg::NodeVisitor& nv);
void traverse_VIEW_DEPENDENT_WITH_ORTHOGRAPHIC_OVERLAY(osg::NodeVisitor& nv);
void traverse_VIEW_DEPENDENT_WITH_PERSPECTIVE_OVERLAY(osg::NodeVisitor& nv);
void updateMainSubgraphStateSet();
typedef osg::buffered_value< int > TextureObjectValidList;
mutable TextureObjectValidList _textureObjectValidList;
OverlayTechnique _overlayTechnique;
osg::ref_ptr<osg::Camera> _camera;
// overlay subgraph is render to a texture