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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.
=========================================================================*/
/**
* @class vtkOpenGLSphereMapper
* @brief draw spheres using imposters
*
* An OpenGL mapper that uses imposters to draw spheres. Supports
* transparency and picking as well.
*/
#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);
//@{
/**
* Convenience method to set the array to scale with.
*/
vtkSetStringMacro(ScaleArray);
//@}
//@{
/**
* This value will be used for the radius is the scale
* array is not provided.
*/
vtkSetMacro(Radius, float);
vtkGetMacro(Radius, float);
/**
* This calls RenderPiece (twice when transparent)
*/
virtual void Render(vtkRenderer *ren, vtkActor *act);
protected:
vtkOpenGLSphereMapper();
~vtkOpenGLSphereMapper();
/**
* Create the basic shaders before replacement
*/
virtual void GetShaderTemplate(
std::map<vtkShader::Type, vtkShader *> shaders,
vtkRenderer *ren, vtkActor *act);
/**
* Perform string replacments on the shader templates
*/
virtual void ReplaceShaderValues(
std::map<vtkShader::Type, vtkShader *> shaders,
vtkRenderer *ren, vtkActor *act);
/**
* Set the shader parameters related to the Camera
*/
virtual void SetCameraShaderParameters(vtkOpenGLHelper &cellBO, vtkRenderer *ren, vtkActor *act);
/**
* Set the shader parameters related to the actor/mapper
*/
virtual void SetMapperShaderParameters(vtkOpenGLHelper &cellBO, vtkRenderer *ren, vtkActor *act);
const char *ScaleArray;
/**
* Does the VBO/IBO need to be rebuilt
*/
virtual bool GetNeedToRebuildBufferObjects(vtkRenderer *ren, vtkActor *act);
/**
* Update the VBO to contain point based values
*/
virtual void BuildBufferObjects(vtkRenderer *ren, vtkActor *act);
virtual void RenderPieceDraw(vtkRenderer *ren, vtkActor *act);
// used for transparency
bool Invert;
float Radius;
private:
vtkOpenGLSphereMapper(const vtkOpenGLSphereMapper&) VTK_DELETE_FUNCTION;
void operator=(const vtkOpenGLSphereMapper&) VTK_DELETE_FUNCTION;
};
#endif
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