vtkPanoramicProjectionPass.h

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/*=========================================================================
 
  Program:   Visualization Toolkit
  Module:    vtkPanoramicProjectionPass.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 vtkPanoramicProjectionPass_h
#define vtkPanoramicProjectionPass_h
 
#include "vtkImageProcessingPass.h"
#include "vtkRenderingOpenGL2Module.h" // For export macro
 
VTK_ABI_NAMESPACE_BEGIN
class vtkOpenGLFramebufferObject;
class vtkOpenGLQuadHelper;
class vtkTextureObject;
 
class VTKRENDERINGOPENGL2_EXPORT vtkPanoramicProjectionPass : public vtkImageProcessingPass
{
public:
  static vtkPanoramicProjectionPass* New();
  vtkTypeMacro(vtkPanoramicProjectionPass, vtkImageProcessingPass);
  void PrintSelf(ostream& os, vtkIndent indent) override;
 
  void Render(const vtkRenderState* s) override;
 
  void ReleaseGraphicsResources(vtkWindow* w) override;
 
 
  vtkGetMacro(CubeResolution, unsigned int);
  vtkSetMacro(CubeResolution, unsigned int);
 
  enum : int
  {
    Equirectangular = 1, 
    Azimuthal = 2        
  };
 
 
  vtkGetMacro(ProjectionType, int);
  vtkSetClampMacro(ProjectionType, int, Equirectangular, Azimuthal);
  void SetProjectionTypeToEquirectangular() { this->SetProjectionType(Equirectangular); }
  void SetProjectionTypeToAzimuthal() { this->SetProjectionType(Azimuthal); }
 
 
  vtkGetMacro(Angle, double);
  vtkSetClampMacro(Angle, double, 90.0, 360.0);
 
 
  vtkGetMacro(Interpolate, bool);
  vtkSetMacro(Interpolate, bool);
  vtkBooleanMacro(Interpolate, bool);
 
protected:
  vtkPanoramicProjectionPass() = default;
  ~vtkPanoramicProjectionPass() override = default;
 
  void RenderOnFace(const vtkRenderState* s, int index);
 
  void Project(vtkOpenGLRenderWindow* renWin);
 
  void InitOpenGLResources(vtkOpenGLRenderWindow* renWin);
 
  vtkOpenGLFramebufferObject* FrameBufferObject = nullptr;
  vtkTextureObject* CubeMapTexture = nullptr;
  vtkOpenGLQuadHelper* QuadHelper = nullptr;
 
  unsigned int CubeResolution = 300;
  int ProjectionType = Equirectangular;
  double Angle = 180.0;
  bool Interpolate = false;
 
private:
  vtkPanoramicProjectionPass(const vtkPanoramicProjectionPass&) = delete;
  void operator=(const vtkPanoramicProjectionPass&) = delete;
};
 
VTK_ABI_NAMESPACE_END
#endif