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110 lines
3.1 KiB
C
110 lines
3.1 KiB
C
3 weeks ago
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/*=========================================================================
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Program: Visualization Toolkit
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Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
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All rights reserved.
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See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
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This software is distributed WITHOUT ANY WARRANTY; without even
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the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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PURPOSE. See the above copyright notice for more information.
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=========================================================================*/
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/**
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* @class vtkOpenGLSphereMapper
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* @brief draw spheres using imposters
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*
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* An OpenGL mapper that uses imposters to draw spheres. Supports
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* transparency and picking as well.
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*/
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#ifndef vtkOpenGLSphereMapper_h
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#define vtkOpenGLSphereMapper_h
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#include "vtkOpenGLPolyDataMapper.h"
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#include "vtkRenderingOpenGL2Module.h" // For export macro
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class VTKRENDERINGOPENGL2_EXPORT vtkOpenGLSphereMapper : public vtkOpenGLPolyDataMapper
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{
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public:
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static vtkOpenGLSphereMapper* New();
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vtkTypeMacro(vtkOpenGLSphereMapper, vtkOpenGLPolyDataMapper);
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void PrintSelf(ostream& os, vtkIndent indent) override;
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//@{
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/**
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* Convenience method to set the array to scale with.
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*/
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vtkSetStringMacro(ScaleArray);
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//@}
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//@{
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/**
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* This value will be used for the radius is the scale
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* array is not provided.
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*/
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vtkSetMacro(Radius, float);
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vtkGetMacro(Radius, float);
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/**
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* This calls RenderPiece (twice when transparent)
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*/
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void Render(vtkRenderer* ren, vtkActor* act) override;
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/**
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* allows a mapper to update a selections color buffers
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* Called from a prop which in turn is called from the selector
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*/
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// void ProcessSelectorPixelBuffers(vtkHardwareSelector *sel,
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// int propid, vtkProp *prop) override;
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protected:
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vtkOpenGLSphereMapper();
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~vtkOpenGLSphereMapper() override;
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/**
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* Create the basic shaders before replacement
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*/
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void GetShaderTemplate(
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std::map<vtkShader::Type, vtkShader*> shaders, vtkRenderer* ren, vtkActor* act) override;
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/**
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* Perform string replacements on the shader templates
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*/
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void ReplaceShaderValues(
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std::map<vtkShader::Type, vtkShader*> shaders, vtkRenderer* ren, vtkActor* act) override;
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/**
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* Set the shader parameters related to the Camera
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*/
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void SetCameraShaderParameters(vtkOpenGLHelper& cellBO, vtkRenderer* ren, vtkActor* act) override;
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/**
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* Set the shader parameters related to the actor/mapper
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*/
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void SetMapperShaderParameters(vtkOpenGLHelper& cellBO, vtkRenderer* ren, vtkActor* act) override;
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const char* ScaleArray;
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/**
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* Update the VBO to contain point based values
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*/
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void BuildBufferObjects(vtkRenderer* ren, vtkActor* act) override;
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void RenderPieceDraw(vtkRenderer* ren, vtkActor* act) override;
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virtual void CreateVBO(vtkPolyData* poly, vtkIdType numPts, unsigned char* colors,
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int colorComponents, vtkIdType nc, float* sizes, vtkIdType ns, vtkRenderer* ren);
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// used for transparency
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bool Invert;
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float Radius;
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private:
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vtkOpenGLSphereMapper(const vtkOpenGLSphereMapper&) = delete;
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void operator=(const vtkOpenGLSphereMapper&) = delete;
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};
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#endif
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