vtkPBRIrradianceTexture.h

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/*=========================================================================
 
  Program:   Visualization Toolkit
  Module:    vtkPBRIrradianceTexture.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 vtkPBRIrradianceTexture_h
#define vtkPBRIrradianceTexture_h
 
#include "vtkOpenGLTexture.h"
#include "vtkRenderingOpenGL2Module.h" // For export macro
 
class vtkOpenGLFramebufferObject;
class vtkOpenGLRenderWindow;
class vtkOpenGLTexture;
class vtkRenderWindow;
 
class VTKRENDERINGOPENGL2_EXPORT vtkPBRIrradianceTexture : public vtkOpenGLTexture
{
public:
  static vtkPBRIrradianceTexture* New();
  vtkTypeMacro(vtkPBRIrradianceTexture, vtkOpenGLTexture);
  void PrintSelf(ostream& os, vtkIndent indent) override;
 
 
  void SetInputTexture(vtkOpenGLTexture* texture);
  vtkGetObjectMacro(InputTexture, vtkOpenGLTexture);
 
  void Load(vtkRenderer*) override;
 
  void Render(vtkRenderer* ren) override { this->Load(ren); }
 
 
  vtkGetMacro(IrradianceSize, unsigned int);
  vtkSetMacro(IrradianceSize, unsigned int);
 
 
  vtkGetMacro(IrradianceStep, float);
  vtkSetMacro(IrradianceStep, float);
 
 
  vtkGetMacro(ConvertToLinear, bool);
  vtkSetMacro(ConvertToLinear, bool);
  vtkBooleanMacro(ConvertToLinear, bool);
 
  void ReleaseGraphicsResources(vtkWindow*) override;
 
protected:
  vtkPBRIrradianceTexture() = default;
  ~vtkPBRIrradianceTexture() override;
 
  float IrradianceStep = 0.04908738521; // pi / 64
  unsigned int IrradianceSize = 256;
  vtkOpenGLTexture* InputTexture = nullptr;
  bool ConvertToLinear = false;
 
private:
  vtkPBRIrradianceTexture(const vtkPBRIrradianceTexture&) = delete;
  void operator=(const vtkPBRIrradianceTexture&) = delete;
};
 
#endif