Renamed osg::CameraNode to osg::Camera, cleaned up osg::View.
Added beginnings of new osgViewer::Scene,View,Viewer,CompositeViewer and GraphicsWindowProxy files.
This commit is contained in:
Robert Osfield
139
include/osg/View
139
include/osg/View
@@ -14,112 +14,43 @@
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#ifndef OSG_VIEW
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#define OSG_VIEW 1
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#include <osg/CameraNode>
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#include <osg/Camera>
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#include <OpenThreads/Mutex>
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namespace osg {
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/** View - is a subclass of Transform which encompasses all the cameras that combine to make up a single view of the scene.
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/** View - maintains a master camera view and a list of slave cameras that are relative to this master camera.
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* Note, if no slave cameras are attached to the view then the master camera does both the control and implementation of the rendering of the scene,
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* but if slave cameras are present then the master controls the view onto the scene, while the slaves implement the rendering of the scene.
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*/
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class OSG_EXPORT View : public osg::Transform, public CullSettings
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class OSG_EXPORT View : public osg::Referenced
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{
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public :
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View();
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/** Copy constructor using CopyOp to manage deep vs shallow copy.*/
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View(const View&,const CopyOp& copyop=CopyOp::SHALLOW_COPY);
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/** Set the master camera of the view. */
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void setCamera(osg::Camera* camera) { _camera = camera; }
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META_Node(osg, View);
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/** Get the master camera of the view. */
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osg::Camera* getCamera() { return _camera.get(); }
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/** Get the const master camera of the view. */
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const osg::Camera* getCamera() const { return _camera.get(); }
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/** Set the projection matrix. Can be thought of as setting the lens of a camera. */
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inline void setProjectionMatrix(const osg::Matrixf& matrix) { _projectionMatrix.set(matrix); updateCameras(); }
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/** Set the projection matrix. Can be thought of as setting the lens of a camera. */
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inline void setProjectionMatrix(const osg::Matrixd& matrix) { _projectionMatrix.set(matrix); updateCameras(); }
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/** Set to an orthographic projection. See OpenGL glOrtho for documentation further details.*/
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void setProjectionMatrixAsOrtho(double left, double right,
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double bottom, double top,
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double zNear, double zFar);
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/** Set to a 2D orthographic projection. See OpenGL glOrtho2D documentation for further details.*/
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void setProjectionMatrixAsOrtho2D(double left, double right,
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double bottom, double top);
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/** Set to a perspective projection. See OpenGL glFrustum documentation for further details.*/
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void setProjectionMatrixAsFrustum(double left, double right,
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double bottom, double top,
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double zNear, double zFar);
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/** Create a symmetrical perspective projection, See OpenGL gluPerspective documentation for further details.
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* Aspect ratio is defined as width/height.*/
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void setProjectionMatrixAsPerspective(double fovy,double aspectRatio,
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double zNear, double zFar);
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/** Get the projection matrix.*/
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osg::Matrixd& getProjectionMatrix() { return _projectionMatrix; }
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/** Get the const projection matrix.*/
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const osg::Matrixd& getProjectionMatrix() const { return _projectionMatrix; }
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/** Get the othographic settings of the orthographic projection matrix.
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* Returns false if matrix is not an orthographic matrix, where parameter values are undefined.*/
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bool getProjectionMatrixAsOrtho(double& left, double& right,
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double& bottom, double& top,
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double& zNear, double& zFar);
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/** Get the frustum setting of a perspective projection matrix.
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* Returns false if matrix is not a perspective matrix, where parameter values are undefined.*/
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bool getProjectionMatrixAsFrustum(double& left, double& right,
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double& bottom, double& top,
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double& zNear, double& zFar);
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/** Get the frustum setting of a symmetric perspective projection matrix.
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* Returns false if matrix is not a perspective matrix, where parameter values are undefined.
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* Note, if matrix is not a symmetric perspective matrix then the shear will be lost.
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* Asymmetric matrices occur when stereo, power walls, caves and reality center display are used.
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* In these configurations one should use the 'getProjectionMatrixAsFrustum' method instead.*/
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bool getProjectionMatrixAsPerspective(double& fovy,double& aspectRatio,
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double& zNear, double& zFar);
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/** Set the view matrix. Can be thought of as setting the position of the world relative to the camera in camera coordinates. */
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inline void setViewMatrix(const osg::Matrixf& matrix) { _viewMatrix.set(matrix); dirtyBound(); updateCameras(); }
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/** Set the view matrix. Can be thought of as setting the position of the world relative to the camera in camera coordinates. */
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inline void setViewMatrix(const osg::Matrixd& matrix) { _viewMatrix.set(matrix); dirtyBound(); updateCameras(); }
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/** Set to the position and orientation of view matrix, using the same convention as gluLookAt. */
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void setViewMatrixAsLookAt(const osg::Vec3& eye,const osg::Vec3& center,const osg::Vec3& up);
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/** Get the view matrix. */
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osg::Matrixd& getViewMatrix() { return _viewMatrix; }
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/** Get the const view matrix. */
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const osg::Matrixd& getViewMatrix() const { return _viewMatrix; }
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/** Get to the position and orientation of a modelview matrix, using the same convention as gluLookAt. */
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void getViewMatrixAsLookAt(osg::Vec3& eye,osg::Vec3& center,osg::Vec3& up,float lookDistance=1.0f);
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/** Get the inverse view matrix.*/
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Matrixd getInverseViewMatrix() const;
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struct CameraData
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/** Slave allows one to up a camera that follows the master with a local offset to the project and view matrices.*/
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struct Slave
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{
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CameraData() {}
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CameraData(osg::CameraNode* camera, const osg::Matrixd& projectionOffset, const osg::Matrixd& viewOffset):
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Slave() {}
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Slave(osg::Camera* camera, const osg::Matrixd& projectionOffset, const osg::Matrixd& viewOffset):
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_camera(camera), _projectionOffset(projectionOffset), _viewOffset(viewOffset) {}
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CameraData(const CameraData& rhs) :
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Slave(const Slave& rhs) :
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_camera(rhs._camera), _projectionOffset(rhs._projectionOffset), _viewOffset(rhs._viewOffset) {}
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CameraData& operator = (const CameraData& rhs)
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Slave& operator = (const Slave& rhs)
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{
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_camera = rhs._camera;
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_projectionOffset = rhs._projectionOffset;
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@@ -127,46 +58,32 @@ class OSG_EXPORT View : public osg::Transform, public CullSettings
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return *this;
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}
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osg::ref_ptr<osg::CameraNode> _camera;
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osg::ref_ptr<osg::Camera> _camera;
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osg::Matrixd _projectionOffset;
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osg::Matrixd _viewOffset;
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};
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bool addCamera(osg::CameraNode* camera) { return addCamera(camera, osg::Matrix::identity(), osg::Matrix::identity()); }
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bool addSlave(osg::Camera* camera) { return addSlave(camera, osg::Matrix::identity(), osg::Matrix::identity()); }
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bool addCamera(osg::CameraNode* camera, const osg::Matrix& projectionOffset, const osg::Matrix& viewOffse);
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bool addSlave(osg::Camera* camera, const osg::Matrix& projectionOffset, const osg::Matrix& viewOffse);
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bool removeCamera(unsigned int pos);
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bool removeSlave(unsigned int pos);
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unsigned int getNumCameras() const { return _cameras.size(); }
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CameraNode* getCamera(unsigned int pos) { return _cameras[pos]._camera.get(); }
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const CameraNode* getCamera(unsigned int pos) const { return _cameras[pos]._camera.get(); }
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CameraData& getCameraData(unsigned int pos) { return _cameras[pos]; }
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const CameraData& getCameraData(unsigned int pos) const { return _cameras[pos]; }
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public:
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/** Transform method that must be defined to provide generic interface for scene graph traversals.*/
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virtual bool computeLocalToWorldMatrix(Matrix& matrix,NodeVisitor*) const;
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/** Transform method that must be defined to provide generic interface for scene graph traversals.*/
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virtual bool computeWorldToLocalMatrix(Matrix& matrix,NodeVisitor*) const;
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unsigned int getNumSlaves() const { return _slaves.size(); }
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Slave& getSlave(unsigned int pos) { return _slaves[pos]; }
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const Slave& getSlave(unsigned int pos) const { return _slaves[pos]; }
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protected :
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virtual ~View();
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void updateCameras();
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void updateSlaves();
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Matrixd _projectionMatrix;
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Matrixd _viewMatrix;
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osg::ref_ptr<osg::Camera> _camera;
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typedef std::vector<CameraData> CameraList;
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CameraList _cameras;
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typedef std::vector<Slave> Slaves;
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Slaves _slaves;
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};
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}
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