vtkOpenGLRenderPass.h

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/*=========================================================================
 
  Program:   Visualization Toolkit
  Module:    vtkOpenGLRenderPass.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 vtkOpenGLRenderPass_h
#define vtkOpenGLRenderPass_h
 
#include "vtkRenderPass.h"
#include "vtkRenderingOpenGL2Module.h" // For export macro
 
#include <string> // For std::string
 
class vtkAbstractMapper;
class vtkInformationObjectBaseVectorKey;
class vtkProp;
class vtkShaderProgram;
class vtkOpenGLVertexArrayObject;
 
class VTKRENDERINGOPENGL2_EXPORT vtkOpenGLRenderPass : public vtkRenderPass
{
public:
  vtkTypeMacro(vtkOpenGLRenderPass, vtkRenderPass);
  void PrintSelf(ostream& os, vtkIndent indent) override;
 
  virtual bool PreReplaceShaderValues(std::string& vertexShader, std::string& geometryShader,
    std::string& fragmentShader, vtkAbstractMapper* mapper, vtkProp* prop);
 
  virtual bool PostReplaceShaderValues(std::string& vertexShader, std::string& geometryShader,
    std::string& fragmentShader, vtkAbstractMapper* mapper, vtkProp* prop);
 
  virtual bool SetShaderParameters(vtkShaderProgram* program, vtkAbstractMapper* mapper,
    vtkProp* prop, vtkOpenGLVertexArrayObject* VAO = nullptr);
 
  virtual vtkMTimeType GetShaderStageMTime();
 
  static vtkInformationObjectBaseVectorKey* RenderPasses();
 
  vtkSetMacro(ActiveDrawBuffers, unsigned int);
  vtkGetMacro(ActiveDrawBuffers, unsigned int);
 
protected:
  vtkOpenGLRenderPass();
  ~vtkOpenGLRenderPass() override;
 
  void PreRender(const vtkRenderState* s);
 
  void PostRender(const vtkRenderState* s);
 
  unsigned int ActiveDrawBuffers = 0;
 
private:
  vtkOpenGLRenderPass(const vtkOpenGLRenderPass&) = delete;
  void operator=(const vtkOpenGLRenderPass&) = delete;
};
 
#endif // vtkOpenGLRenderPass_h