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geomSubset.h
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2 // Copyright 2018 Pixar
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24 #ifndef PXR_IMAGING_HD_GEOM_SUBSET_H
25 #define PXR_IMAGING_HD_GEOM_SUBSET_H
26 
27 #include "pxr/pxr.h"
28 #include "pxr/imaging/hd/api.h"
29 #include "pxr/imaging/hd/version.h"
30 #include "pxr/usd/sdf/path.h"
31 #include "pxr/base/vt/array.h"
32 #include <vector>
33 
35 
36 /// \class HdGeomSubset
37 ///
38 /// Describes a subset of a piece of geometry as a set of indices.
39 ///
40 struct HdGeomSubset {
41  enum Type {
42  /// A subset of faces
44 
45  // For now, there is only one type, but this may grow in the future
46  // to accomodate edges, points, etc.
47  };
48 
49  /// The type of elements this geometry subset includes.
51  /// The path used to identify this subset in the scene.
53  /// The path used to identify this material bound to the subset.
55  /// The list of element indices contained in the subset.
56  VtIntArray indices;
57 };
58 
59 /// A group of geometry subsets.
60 typedef std::vector<HdGeomSubset> HdGeomSubsets;
61 
62 HD_API
63 bool operator==(const HdGeomSubset& lhs, const HdGeomSubset& rhs);
64 
66 
67 #endif // PXR_IMAGING_HD_GEOM_SUBSET_H
#define HD_API
Definition: api.h:40
A subset of faces.
Definition: geomSubset.h:43
VtIntArray indices
The list of element indices contained in the subset.
Definition: geomSubset.h:56
Definition: path.h:288
SdfPath id
The path used to identify this subset in the scene.
Definition: geomSubset.h:52
std::vector< HdGeomSubset > HdGeomSubsets
A group of geometry subsets.
Definition: geomSubset.h:60
PXR_NAMESPACE_CLOSE_SCOPE PXR_NAMESPACE_OPEN_SCOPE
Definition: path.h:1346
SdfPath materialId
The path used to identify this material bound to the subset.
Definition: geomSubset.h:54
#define PXR_NAMESPACE_CLOSE_SCOPE
Definition: pxr.h:91
Type type
The type of elements this geometry subset includes.
Definition: geomSubset.h:50
bool operator==(const Mat3< T0 > &m0, const Mat3< T1 > &m1)
Equality operator, does exact floating point comparisons.
Definition: Mat3.h:549