Cortex  10.0.0-a4
PointsPrimitive.h
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34 
35 #ifndef IECOREGL_POINTSPRIMITIVE_H
36 #define IECOREGL_POINTSPRIMITIVE_H
37 
38 #include "IECoreGL/Export.h"
39 #include "IECoreGL/Primitive.h"
40 
41 #include "IECore/VectorTypedData.h"
42 
43 namespace IECoreGL
44 {
45 
46 class IECOREGL_API PointsPrimitive : public Primitive
47 {
48 
49  public :
50 
51  IE_CORE_DECLARERUNTIMETYPEDEXTENSION( IECoreGL::PointsPrimitive, PointsPrimitiveTypeId, Primitive );
52 
55  enum Type {
56  Point, // GL_POINTS
57  Disk, // camera facing disks
58  Quad, // camera facing quads
59  Sphere, // spheres
60  };
61 
62  PointsPrimitive( Type type );
63  ~PointsPrimitive() override;
64 
65  Imath::Box3f bound() const override;
66 
67  void addPrimitiveVariable( const std::string &name, const IECore::PrimitiveVariable &primVar ) override;
68  const Shader::Setup *shaderSetup( const Shader *shader, State *state ) const override;
69  void render( const State *currentState, IECore::TypeId style ) const override;
70  void renderInstances( size_t numInstances = 1 ) const override;
71 
76 
77  typedef TypedStateComponent<GLPointsUsage, PointsPrimitiveUseGLPointsTypeId> UseGLPoints;
80  IE_CORE_DECLAREPTR( UseGLPoints );
82  typedef TypedStateComponent<float, PointsPrimitiveGLPointWidthTypeId> GLPointWidth;
83  IE_CORE_DECLAREPTR( GLPointWidth );
85 
86  private :
87 
88  template<typename T>
89  static const T *dataAndStride( const IECore::Data *data, const T *defaultValue, unsigned int &stride );
90  void updateBounds() const;
91 
92  Type effectiveType( const State *state ) const;
93 
94  static std::string &instancingVertexSource();
95 
96  void depthSort() const;
97 
98  IE_CORE_FORWARDDECLARE( MemberData );
99 
100  MemberDataPtr m_memberData;
101 
102 };
103 
104 IE_CORE_DECLAREPTR( PointsPrimitive );
105 
106 } // namespace IECoreGL
107 
108 #endif // IECOREGL_POINTSPRIMITIVE_H
The namespace within which all CoreGL functionality is defined.
Definition: AlphaTexture.h:41
Definition: Data.h:46
Definition: PrimitiveVariable.h:47
TypeId
Definition: TypeIds.h:46