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nurbsPatchAdapter.h
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2 // Copyright 2016 Pixar
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24 #ifndef USDIMAGING_NURBS_PATCH_ADAPTER_H
25 #define USDIMAGING_NURBS_PATCH_ADAPTER_H
26 
28 
29 #include "pxr/pxr.h"
30 #include "pxr/usdImaging/usdImaging/api.h"
31 #include "pxr/usdImaging/usdImaging/primAdapter.h"
32 #include "pxr/usdImaging/usdImaging/gprimAdapter.h"
33 
34 PXR_NAMESPACE_OPEN_SCOPE
35 
36 
42 public:
44 
47  {}
48  USDIMAGING_API
49  virtual ~UsdImagingNurbsPatchAdapter();
50 
51  USDIMAGING_API
53  UsdPrim const& prim,
54  UsdImagingIndexProxy* index,
55  UsdImagingInstancerContext const* instancerContext = nullptr) override;
56 
57  USDIMAGING_API
58  bool IsSupported(UsdImagingIndexProxy const* index) const override;
59 
60  // ---------------------------------------------------------------------- //
62  // ---------------------------------------------------------------------- //
63 
65  USDIMAGING_API
66  void TrackVariability(
67  UsdPrim const& prim,
68  SdfPath const& cachePath,
69  HdDirtyBits* timeVaryingBits,
70  UsdImagingInstancerContext const* instancerContext = nullptr)
71  const override;
72 
74  USDIMAGING_API
75  void UpdateForTime(
76  UsdPrim const& prim,
77  SdfPath const& cachePath,
78  UsdTimeCode time,
79  HdDirtyBits requestedBits,
80  UsdImagingInstancerContext const* instancerContext = nullptr)
81  const override;
82 
83  // Override the implemetation in GprimAdapter since we don't fetch the
84  // points attribute for implicit primitives.
85  USDIMAGING_API
87  UsdPrim const& prim,
88  SdfPath const& cachePath,
89  UsdTimeCode time) const override;
90 
91  USDIMAGING_API
92  static VtValue GetMeshPoints(UsdPrim const& prim,
93  UsdTimeCode time);
94 
95  USDIMAGING_API
96  static VtValue GetMeshTopology(UsdPrim const& prim,
97  UsdTimeCode time);
98 };
99 
100 
101 PXR_NAMESPACE_CLOSE_SCOPE
102 
103 #endif // USDIMAGING_NURBS_PATCH_ADAPTER_H
USDIMAGING_API bool IsSupported(UsdImagingIndexProxy const *index) const override
Returns true if the adapter can be populated into the target index.
This proxy class exposes a subset of the private Delegate API to PrimAdapters.
Definition: indexProxy.h:47
USDIMAGING_API VtValue GetPoints(UsdPrim const &prim, SdfPath const &cachePath, UsdTimeCode time) const override
Give derived classes an opportunity to override how we get points for a prim.
Delegate support for UsdGeomGrims.
Definition: gprimAdapter.h:48
USDIMAGING_API void UpdateForTime(UsdPrim const &prim, SdfPath const &cachePath, UsdTimeCode time, HdDirtyBits requestedBits, UsdImagingInstancerContext const *instancerContext=nullptr) const override
Thread Safe.
Represent a time value, which may be either numeric, holding a double value, or a sentinel value UsdT...
Definition: timeCode.h:85
USDIMAGING_API SdfPath Populate(UsdPrim const &prim, UsdImagingIndexProxy *index, UsdImagingInstancerContext const *instancerContext=nullptr) override
Called to populate the RenderIndex for this UsdPrim.
Base class for all PrimAdapters.
Definition: primAdapter.h:67
UsdPrim is the sole persistent scenegraph object on a UsdStage, and is the embodiment of a "Prim" as ...
Definition: prim.h:131
Delegate support for UsdGeomNurbsPatch.
A path value used to locate objects in layers or scenegraphs.
Definition: path.h:287
USDIMAGING_API void TrackVariability(UsdPrim const &prim, SdfPath const &cachePath, HdDirtyBits *timeVaryingBits, UsdImagingInstancerContext const *instancerContext=nullptr) const override
Thread Safe.
Object used by instancer prim adapters to pass along context about the instancer and instance prim to...
Provides a container which may hold any type, and provides introspection and iteration over array typ...
Definition: value.h:182