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vtkOpenGLGlyph3DHelper.h
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vtkOpenGLGlyph3DHelper.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.
=========================================================================*/
/**
* @class vtkOpenGLGlyph3DHelper
* @brief PolyDataMapper using OpenGL to render.
*
* PolyDataMapper that uses a OpenGL to do the actual rendering.
*/
#ifndef vtkOpenGLGlyph3DHelper_h
#define vtkOpenGLGlyph3DHelper_h
#include "vtkNew.h" // For vtkNew
#include "vtkOpenGLBufferObject.h" // For vtkOpenGLBufferObject
#include "vtkOpenGLHelper.h" // For vtkOpenGLHelper
#include "vtkOpenGLInstanceCulling.h" // For vtkOpenGLInstanceCulling
#include "vtkOpenGLPolyDataMapper.h"
#include "vtkRenderingOpenGL2Module.h" // For export macro
class vtkBitArray;
class VTKRENDERINGOPENGL2_EXPORT vtkOpenGLGlyph3DHelper : public vtkOpenGLPolyDataMapper
{
public:
static vtkOpenGLGlyph3DHelper* New();
vtkTypeMacro(vtkOpenGLGlyph3DHelper, vtkOpenGLPolyDataMapper);
void PrintSelf(ostream& os, vtkIndent indent) override;
/**
* Fast path for rendering glyphs comprised of only one type of primitive
* Must set this->CurrentInput explicitly before calling.
*/
void GlyphRender(vtkRenderer* ren, vtkActor* actor, vtkIdType numPts,
std::vector<unsigned char>& colors, std::vector<float>& matrices,
std::vector<float>& normalMatrices, std::vector<vtkIdType>& pickIds, vtkMTimeType pointMTime,
bool culling);
void SetLODs(std::vector<std::pair<float, float>>& lods);
void SetLODColoring(bool val);
/**
* Release any graphics resources that are being consumed by this mapper.
* The parameter window could be used to determine which graphic
* resources to release.
*/
void ReleaseGraphicsResources(vtkWindow* window) override;
protected:
vtkOpenGLGlyph3DHelper();
~vtkOpenGLGlyph3DHelper() override = default;
// special opengl 32 version that uses instances
void GlyphRenderInstances(vtkRenderer* ren, vtkActor* actor, vtkIdType numPts,
std::vector<unsigned char>& colors, std::vector<float>& matrices,
std::vector<float>& normalMatrices, vtkMTimeType pointMTime, bool culling);
/**
* Create the basic shaders before replacement
*/
void GetShaderTemplate(
std::map<vtkShader::Type, vtkShader*> shaders, vtkRenderer* ren, vtkActor* act) override;
///@{
/**
* Perform string replacements on the shader templates
*/
void ReplaceShaderPicking(
std::map<vtkShader::Type, vtkShader*> shaders, vtkRenderer* ren, vtkActor* act) override;
void ReplaceShaderColor(
std::map<vtkShader::Type, vtkShader*> shaders, vtkRenderer* ren, vtkActor* act) override;
void ReplaceShaderNormal(
std::map<vtkShader::Type, vtkShader*> shaders, vtkRenderer* ren, vtkActor* act) override;
void ReplaceShaderClip(
std::map<vtkShader::Type, vtkShader*> shaders, vtkRenderer* ren, vtkActor* act) override;
void ReplaceShaderPositionVC(
std::map<vtkShader::Type, vtkShader*> shaders, vtkRenderer* ren, vtkActor* act) override;
///@}
/**
* Set the shader parameteres related to the actor/mapper
*/
void SetMapperShaderParameters(vtkOpenGLHelper& cellBO, vtkRenderer* ren, vtkActor* act) override;
void BuildCullingShaders(vtkRenderer* ren, vtkActor* actor, vtkIdType numPts, bool withNormals);
bool UsingInstancing;
vtkNew<vtkOpenGLBufferObject> NormalMatrixBuffer;
vtkNew<vtkOpenGLBufferObject> MatrixBuffer;
vtkNew<vtkOpenGLBufferObject> ColorBuffer;
vtkTimeStamp InstanceBuffersBuildTime;
vtkTimeStamp InstanceBuffersLoadTime;
std::vector<std::pair<float, float>> LODs;
vtkNew<vtkOpenGLInstanceCulling> InstanceCulling;
private:
vtkOpenGLGlyph3DHelper(const vtkOpenGLGlyph3DHelper&) = delete;
void operator=(const vtkOpenGLGlyph3DHelper&) = delete;
};
#endif