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/*=========================================================================
Program: Visualization Toolkit
Module: $RCSfile: vtkOpenGLProjectedPolyDataRayBounder.h,v $
Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
All rights reserved.
See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notice for more information.
=========================================================================*/
// .NAME vtkOpenGLProjectedPolyDataRayBounder - Open GL ray bounder
//
// .SECTION Description
// vtkOpenGLProjectedPolyDataRayBounder is the specific Open GL
// implementation of the superclass vtkProjectedPolyDataRayBounder.
// It is responsible for building its own internal structure from the
// generic vtkPolyData structure (it builds a display list) and for rendering
// its internal structure and creating near and far depth buffers.
// It has no public methods, and should not be created directly - the
// New();
// create the correct subclass given the current VTK_RENDERER
// .SECTION see also
// vtkProjectedPolyDataRayBounder
#ifndef __vtkOpenGLProjectedPolyDataRayBounder_h
#define __vtkOpenGLProjectedPolyDataRayBounder_h
#include "vtkProjectedPolyDataRayBounder.h"
#ifndef VTK_IMPLEMENT_MESA_CXX
#ifdef __APPLE__
#include <OpenGL/gl.h> //Needed for GLUint
#else
#include <GL/gl.h> //Needed for GLUint
#endif
#endif
class vtkWindow;
class VTK_RENDERING_EXPORT vtkOpenGLProjectedPolyDataRayBounder : public vtkProjectedPolyDataRayBounder
{
public:
vtkTypeRevisionMacro(vtkOpenGLProjectedPolyDataRayBounder,vtkProjectedPolyDataRayBounder);
void PrintSelf(ostream& os, vtkIndent indent);
// Description:
// Construct a new vtkOpenGLProjectedPolyDataRayBounder. The depth range
// buffer is initially NULL and no display list has been created
static vtkOpenGLProjectedPolyDataRayBounder *New();
// Description:
// Release any graphics resources that are being consumed by this ray bounder.
// The parameter window could be used to determine which graphic
// resources to release.
void ReleaseGraphicsResources(vtkWindow *);
protected:
vtkOpenGLProjectedPolyDataRayBounder();
~vtkOpenGLProjectedPolyDataRayBounder();
GLuint DisplayList;
float *DepthRangeBuffer;
// Description:
// Create a display list from the poly data.
void Build( vtkPolyData *pdata );
// Description:
// Render the display list and create the near and far buffers
float *Draw( vtkRenderer *ren, vtkMatrix4x4 *matrix );
private:
vtkOpenGLProjectedPolyDataRayBounder(const vtkOpenGLProjectedPolyDataRayBounder&); // Not implemented.
void operator=(const vtkOpenGLProjectedPolyDataRayBounder&); // Not implemented.
};
#endif
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