vtkMultiBlockVolumeMapper.h

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

#include <vector> // For DataBlocks

#include "vtkNew.h"                          // for ivar
#include "vtkRenderingVolumeOpenGL2Module.h" // For export macro
#include "vtkVolumeMapper.h"
#include "vtkWrappingHints.h" // For VTK_MARSHALAUTO

VTK_ABI_NAMESPACE_BEGIN
class vtkDataObjectTree;
class vtkDataSet;
class vtkImageData;
class vtkMatrix4x4;
class vtkMultiBlockDataSet;
class vtkRenderWindow;
class vtkSmartVolumeMapper;

class VTKRENDERINGVOLUMEOPENGL2_EXPORT VTK_MARSHALAUTO vtkMultiBlockVolumeMapper
  : public vtkVolumeMapper
{
public:
  static vtkMultiBlockVolumeMapper* New();
  vtkTypeMacro(vtkMultiBlockVolumeMapper, vtkVolumeMapper);
  void PrintSelf(ostream& os, vtkIndent indent) override;


  double* GetBounds() override;
  using vtkAbstractVolumeMapper::GetBounds;

  void SelectScalarArray(int arrayNum) override;
  void SelectScalarArray(char const* arrayName) override;
  void SetScalarMode(int ScalarMode) override;
  void SetArrayAccessMode(int accessMode) override;

  void Render(vtkRenderer* ren, vtkVolume* vol) override;

  void ReleaseGraphicsResources(vtkWindow* window) override;


  void SetVectorMode(int mode);
  vtkGetMacro(VectorMode, int);
  void SetVectorComponent(int component);
  vtkGetMacro(VectorComponent, int);


  void SetBlendMode(int mode) override;


  void SetComputeNormalFromOpacity(bool val) override;


  void SetGlobalIlluminationReach(float val);
  vtkGetMacro(GlobalIlluminationReach, float);


  void SetVolumetricScatteringBlending(float val);
  vtkGetMacro(VolumetricScatteringBlending, float);


  void SetCropping(vtkTypeBool mode) override;

  void SetCroppingRegionPlanes(
    double arg1, double arg2, double arg3, double arg4, double arg5, double arg6) override;
  void SetCroppingRegionPlanes(const double* planes) override;

  void SetCroppingRegionFlags(int mode) override;


  void SetRequestedRenderMode(int);


  void SetTransfer2DYAxisArray(const char* a);

protected:
  vtkMultiBlockVolumeMapper();
  ~vtkMultiBlockVolumeMapper() override;

  int FillInputPortInformation(int port, vtkInformation* info) override;

  vtkRenderWindow* DebugWin;
  vtkRenderer* DebugRen;

  vtkNew<vtkMatrix4x4> TempMatrix4x4;

private:
  void LoadDataSet(vtkRenderer* ren, vtkVolume* vol);

  void CreateMappers(vtkDataObjectTree* input, vtkRenderer* ren, vtkVolume* vol);

  vtkDataObjectTree* GetDataObjectTreeInput();

  void ComputeBounds();

  void SortMappers(vtkRenderer* ren, vtkMatrix4x4* volumeMat);

  void ClearMappers();

  vtkSmartVolumeMapper* CreateMapper();

  vtkMultiBlockVolumeMapper(const vtkMultiBlockVolumeMapper&) = delete;
  void operator=(const vtkMultiBlockVolumeMapper&) = delete;


  typedef std::vector<vtkSmartVolumeMapper*> MapperVec;
  MapperVec Mappers;
  vtkSmartVolumeMapper* FallBackMapper;

  vtkMTimeType BlockLoadingTime;
  vtkMTimeType BoundsComputeTime;

  int VectorMode;
  int VectorComponent;
  int RequestedRenderMode;

  float GlobalIlluminationReach = 0.0;

  float VolumetricScatteringBlending = 0.0;

  char* Transfer2DYAxisArray;
};
VTK_ABI_NAMESPACE_END
#endif