vtkOpenGLSphereMapper.h

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/*=========================================================================

  Program:   Visualization Toolkit

  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 vtkOpenGLSphereMapper_h
#define vtkOpenGLSphereMapper_h

#include "vtkRenderingOpenGL2Module.h" // For export macro
#include "vtkOpenGLPolyDataMapper.h"

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


  vtkSetStringMacro(ScaleArray);


   vtkSetMacro(Radius, float);
   vtkGetMacro(Radius, float);

  void Render(vtkRenderer *ren, vtkActor *act) override;

  // void ProcessSelectorPixelBuffers(vtkHardwareSelector *sel,
  //   int propid, vtkProp *prop) override;

protected:
  vtkOpenGLSphereMapper();
  ~vtkOpenGLSphereMapper() override;

  void GetShaderTemplate(
    std::map<vtkShader::Type, vtkShader *> shaders,
    vtkRenderer *ren, vtkActor *act) override;

  void ReplaceShaderValues(
    std::map<vtkShader::Type, vtkShader *> shaders,
    vtkRenderer *ren, vtkActor *act) override;

  void SetCameraShaderParameters(vtkOpenGLHelper &cellBO, vtkRenderer *ren, vtkActor *act) override;

  void SetMapperShaderParameters(vtkOpenGLHelper &cellBO, vtkRenderer *ren, vtkActor *act) override;

  const char *ScaleArray;

  void BuildBufferObjects(vtkRenderer *ren, vtkActor *act) override;

  void RenderPieceDraw(vtkRenderer *ren, vtkActor *act) override;

  virtual void CreateVBO(
    vtkPolyData *poly, vtkIdType numPts,
    unsigned char *colors, int colorComponents,
    vtkIdType nc,
    float *sizes, vtkIdType ns, vtkRenderer *ren);

  // used for transparency
  bool Invert;
  float Radius;

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

#endif