vtkToneMappingPass.h

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/*=========================================================================
 
  Program:   Visualization Toolkit
  Module:    vtkToneMappingPass.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 vtkToneMappingPass_h
#define vtkToneMappingPass_h
 
#include "vtkImageProcessingPass.h"
#include "vtkRenderingOpenGL2Module.h" // For export macro
 
class vtkOpenGLFramebufferObject;
class vtkOpenGLQuadHelper;
class vtkTextureObject;
 
class VTKRENDERINGOPENGL2_EXPORT vtkToneMappingPass : public vtkImageProcessingPass
{
public:
  static vtkToneMappingPass* New();
  vtkTypeMacro(vtkToneMappingPass, vtkImageProcessingPass);
  void PrintSelf(ostream& os, vtkIndent indent) override;
 
  void Render(const vtkRenderState* s) override;
 
  void ReleaseGraphicsResources(vtkWindow* w) override;
 
 
  void SetGenericFilmicDefaultPresets();
  void SetGenericFilmicUncharted2Presets();
 
  enum
  {
    Clamp = 0,
    Reinhard = 1,
    Exponential = 2,
    GenericFilmic = 3
  };
 
 
  vtkSetClampMacro(ToneMappingType, int, 0, 3);
  vtkGetMacro(ToneMappingType, int);
 
 
  vtkGetMacro(Exposure, float);
  vtkSetMacro(Exposure, float);
 
 
  vtkSetClampMacro(Contrast, float, 0.0001f, VTK_FLOAT_MAX);
  vtkGetMacro(Contrast, float);
 
 
  vtkSetClampMacro(Shoulder, float, 0.0001, 1.f);
  vtkGetMacro(Shoulder, float);
 
 
  vtkSetClampMacro(MidIn, float, 0.0001, 1.f);
  vtkGetMacro(MidIn, float);
 
 
  vtkSetClampMacro(MidOut, float, 0.0001, 1.f);
  vtkGetMacro(MidOut, float);
 
 
  vtkSetClampMacro(HdrMax, float, 1.f, VTK_FLOAT_MAX);
  vtkGetMacro(HdrMax, float);
 
 
  vtkSetMacro(UseACES, bool);
  vtkGetMacro(UseACES, bool);
 
protected:
  vtkToneMappingPass() = default;
  ~vtkToneMappingPass() override;
 
  vtkOpenGLFramebufferObject* FrameBufferObject = nullptr;
  vtkTextureObject* ColorTexture = nullptr;
  vtkOpenGLQuadHelper* QuadHelper = nullptr;
 
  vtkMTimeType PreComputeMTime = 0;
 
  int ToneMappingType = GenericFilmic;
  float Exposure = 1.0;
 
  float Contrast = 1.6773;
  float Shoulder = 0.9714;
  float MidIn = 0.18;
  float MidOut = 0.18;
  float HdrMax = 11.0785;
  bool UseACES = true;
 
  bool UseACESChangeValue = true;
 
  float ClippingPoint = 1.117427;
  float ToeSpeed = 0.244676;
 
  void PreComputeAnchorCurveGenericFilmic();
 
private:
  vtkToneMappingPass(const vtkToneMappingPass&) = delete;
  void operator=(const vtkToneMappingPass&) = delete;
};
 
#endif