vtkCompositeZPass.h

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/*=========================================================================
 
  Program:   Visualization Toolkit
  Module:    vtkCompositeZPass.h
 
  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.
 
=========================================================================*/
#ifndef vtkCompositeZPass_h
#define vtkCompositeZPass_h
 
#include "vtkRenderingParallelModule.h" // For export macro
#include "vtkRenderPass.h"
 
class vtkMultiProcessController;
 
class vtkPixelBufferObject;
class vtkTextureObject;
class vtkOpenGLRenderWindow;
#ifdef VTK_OPENGL2
class vtkOpenGLHelper;
#else
class vtkShaderProgram2;
#endif
 
class VTKRENDERINGPARALLEL_EXPORT vtkCompositeZPass : public vtkRenderPass
{
public:
  static vtkCompositeZPass *New();
  vtkTypeMacro(vtkCompositeZPass,vtkRenderPass);
  void PrintSelf(ostream& os, vtkIndent indent);
 
  virtual void Render(const vtkRenderState *s);
 
  void ReleaseGraphicsResources(vtkWindow *w);
 
 
  vtkGetObjectMacro(Controller,vtkMultiProcessController);
  virtual void SetController(vtkMultiProcessController *controller);
 
  bool IsSupported(vtkOpenGLRenderWindow *context);
 
 protected:
  vtkCompositeZPass();
 
  virtual ~vtkCompositeZPass();
 
  void CreateProgram(vtkOpenGLRenderWindow *context);
 
  vtkMultiProcessController *Controller;
 
  vtkPixelBufferObject *PBO;
  vtkTextureObject *ZTexture;
#ifdef VTK_OPENGL2
  vtkOpenGLHelper *Program;
#else
  vtkShaderProgram2 *Program;
#endif
  float *RawZBuffer;
  size_t RawZBufferSize;
 
 private:
  vtkCompositeZPass(const vtkCompositeZPass&);  // Not implemented.
  void operator=(const vtkCompositeZPass&);  // Not implemented.
};
 
#endif