Contents User Forum Source Index APIs by Task APIs by Level Data G3D::VAR Class Reference A pointer to an array of vertices, colors, or normals in video memory. More... #include <VAR.h> List of all members. Public Member Functions size_t  maxSize () const template<class T> void  set (int index, const T &value) template<class T> void  update (const Array< T > &source) template<class T> void  update (const T *sourcePtr, int _numElements) bool  valid () const template<class T>   VAR (const Array< T > &source, VARAreaRef _area) template<class T>   VAR (const T *sourcePtr, int _numElements, VARAreaRef _area)   VAR () Friends class  RenderDevice Detailed Description A pointer to an array of vertices, colors, or normals in video memory. It is safe to copy these (the pointer will be copied, not the video memory). There is no destructor because the memory referenced is freed when the parent VARArea is reset or freed. Constructor & Destructor Documentation G3D::VAR::VAR (  )  Creates an invalid VAR. template<class T> G3D::VAR::VAR ( const T *  sourcePtr, int  _numElements, VARAreaRef  _area   ) [inline] Uploads the memory. The element type is inferred from the pointer type by the preprocessor. Sample usage: Once at the beginning of the program VARAreaRef area = VARArea::create(1024 * 1024); ---------- Store data in main memory Array<Vector3> vertex; Array<int> index; ... fill out vertex & index arrays ------------ Upload to graphics card every frame area.reset(); VAR varray(vertex, area); renderDevice->beginIndexedPrimitives(); renderDevice->setVertexArray(varray); renderDevice->sendIndices(RenderDevice::TRIANGLES, index); renderDevice->endIndexedPrimitives(); See GLG3D_Demo for examples. template<class T> G3D::VAR::VAR ( const Array< T > &  source, VARAreaRef  _area   ) [inline] Member Function Documentation size_t G3D::VAR::maxSize (  )  const [inline] Maximum size that can be loaded via update into this VAR. template<class T> void G3D::VAR::set ( int  index, const T &  value   ) [inline] Overwrites a single element of an existing array without changing the number of elements. This is faster than calling update for large arrays, but slow if many set calls are made. Typically used to change a few key vertices, e.g., the single dark cap point of a directional light's shadow volume. template<class T> void G3D::VAR::update ( const Array< T > &  source  )  [inline] Overwrites existing data with data of the same size or smaller. Convenient for changing part of a G3D::VARArea without reseting the area (and thereby deallocating the other G3D::VAR arrays in it). template<class T> void G3D::VAR::update ( const T *  sourcePtr, int  _numElements   ) [inline] bool G3D::VAR::valid (  )  const Returns true if this VAR can be used for rendering (i.e. contains data and the parent VARArea has not been reset). Friends And Related Function Documentation friend class RenderDevice [friend] The documentation for this class was generated from the following file: VAR.h Hosted by