vtkPBRPrefilterTexture.h

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// SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
// SPDX-License-Identifier: BSD-3-Clause
#ifndef vtkPBRPrefilterTexture_h
#define vtkPBRPrefilterTexture_h

#include "vtkOpenGLTexture.h"
#include "vtkRenderingOpenGL2Module.h" // For export macro
#include "vtkWrappingHints.h"          // For VTK_MARSHALAUTO

VTK_ABI_NAMESPACE_BEGIN
class vtkOpenGLFramebufferObject;
class vtkOpenGLRenderWindow;
class vtkOpenGLTexture;
class vtkRenderWindow;

class VTKRENDERINGOPENGL2_EXPORT VTK_MARSHALAUTO vtkPBRPrefilterTexture : public vtkOpenGLTexture
{
public:
  static vtkPBRPrefilterTexture* New();
  vtkTypeMacro(vtkPBRPrefilterTexture, vtkOpenGLTexture);
  void PrintSelf(ostream& os, vtkIndent indent) override;


  void SetInputTexture(vtkOpenGLTexture*);
  vtkGetObjectMacro(InputTexture, vtkOpenGLTexture);

  void Load(vtkRenderer*) override;

  void Render(vtkRenderer* ren) override { this->Load(ren); }


  vtkGetMacro(PrefilterSize, unsigned int);


  vtkGetMacro(PrefilterLevels, unsigned int);
  vtkSetMacro(PrefilterLevels, unsigned int);


  vtkGetMacro(PrefilterMaxSamples, unsigned int);
  vtkSetMacro(PrefilterMaxSamples, unsigned int);


  vtkGetMacro(ConvertToLinear, bool);
  vtkSetMacro(ConvertToLinear, bool);
  vtkBooleanMacro(ConvertToLinear, bool);


  vtkGetMacro(HalfPrecision, bool);
  vtkSetMacro(HalfPrecision, bool);
  vtkBooleanMacro(HalfPrecision, bool);

  void ReleaseGraphicsResources(vtkWindow*) override;

protected:
  vtkPBRPrefilterTexture() = default;
  ~vtkPBRPrefilterTexture() override;

  unsigned int PrefilterSize;
  unsigned int PrefilterLevels = 5;
  unsigned int PrefilterMaxSamples = 512;
  vtkOpenGLTexture* InputTexture = nullptr;
  bool ConvertToLinear = false;
  bool HalfPrecision = true;

private:
  vtkPBRPrefilterTexture(const vtkPBRPrefilterTexture&) = delete;
  void operator=(const vtkPBRPrefilterTexture&) = delete;
};

VTK_ABI_NAMESPACE_END
#endif