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120 lines
3.5 KiB
C
120 lines
3.5 KiB
C
3 weeks ago
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/*=========================================================================
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Program: Visualization Toolkit
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Module: vtkOpenGLGlyph3DMapper.h
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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 vtkOpenGLGlyph3DMapper
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* @brief vtkOpenGLGlyph3D on the GPU.
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*
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* Do the same job than vtkGlyph3D but on the GPU. For this reason, it is
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* a mapper not a vtkPolyDataAlgorithm. Also, some methods of vtkOpenGLGlyph3D
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* don't make sense in vtkOpenGLGlyph3DMapper: GeneratePointIds, old-style
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* SetSource, PointIdsName, IsPointVisible.
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*
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* @sa
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* vtkOpenGLGlyph3D
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*/
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#ifndef vtkOpenGLGlyph3DMapper_h
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#define vtkOpenGLGlyph3DMapper_h
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#include "vtkGlyph3DMapper.h"
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#include "vtkNew.h" // For vtkNew
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#include "vtkRenderingOpenGL2Module.h" // For export macro
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class vtkOpenGLGlyph3DHelper;
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class vtkBitArray;
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class VTKRENDERINGOPENGL2_EXPORT vtkOpenGLGlyph3DMapper : public vtkGlyph3DMapper
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{
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public:
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static vtkOpenGLGlyph3DMapper* New();
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vtkTypeMacro(vtkOpenGLGlyph3DMapper, vtkGlyph3DMapper);
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void PrintSelf(ostream& os, vtkIndent indent) override;
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/**
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* Method initiates the mapping process. Generally sent by the actor
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* as each frame is rendered.
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*/
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void Render(vtkRenderer* ren, vtkActor* a) override;
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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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//@{
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/**
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* Get the maximum number of LOD. OpenGL context must be bound.
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* The maximum number of LOD depends on GPU capabilities.
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*/
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vtkIdType GetMaxNumberOfLOD() override;
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/**
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* Set the number of LOD.
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*/
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void SetNumberOfLOD(vtkIdType nb) override;
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/**
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* Configure LODs. Culling must be enabled.
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* distance have to be a positive value, it is the distance to the camera scaled by
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* the instanced geometry bounding box.
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* targetReduction have to be between 0 and 1, 0 disable decimation, 1 draw a point.
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*
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* @sa vtkDecimatePro::SetTargetReduction
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*/
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virtual void SetLODDistanceAndTargetReduction(
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vtkIdType index, float distance, float targetReduction) override;
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//@}
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protected:
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vtkOpenGLGlyph3DMapper();
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~vtkOpenGLGlyph3DMapper() override;
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/**
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* Render setup
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*/
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virtual void Render(vtkRenderer*, vtkActor*, vtkDataSet*);
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/**
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* Send mapper ivars to sub-mapper.
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* \pre mapper_exists: mapper != 0
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*/
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void CopyInformationToSubMapper(vtkOpenGLGlyph3DHelper*);
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void SetupColorMapper();
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vtkMapper* ColorMapper;
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class vtkOpenGLGlyph3DMapperEntry;
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class vtkOpenGLGlyph3DMapperSubArray;
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class vtkOpenGLGlyph3DMapperArray;
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vtkOpenGLGlyph3DMapperArray* GlyphValues; // array of value for datasets
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/**
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* Build data structures associated with
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*/
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virtual void RebuildStructures(vtkOpenGLGlyph3DMapperSubArray* entry, vtkIdType numPts,
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vtkActor* actor, vtkDataSet* dataset, vtkBitArray* maskArray);
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vtkMTimeType BlockMTime; // Last time BlockAttributes was modified.
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private:
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vtkOpenGLGlyph3DMapper(const vtkOpenGLGlyph3DMapper&) = delete;
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void operator=(const vtkOpenGLGlyph3DMapper&) = delete;
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};
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#endif
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