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