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particleWriter.h
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2 // Copyright 2018 Pixar
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24 #ifndef PXRUSDTRANSLATORS_PARTICLE_WRITER_H
25 #define PXRUSDTRANSLATORS_PARTICLE_WRITER_H
26 
28 
29 #include "pxr/pxr.h"
31 
33 
34 #include "pxr/base/tf/token.h"
35 #include "pxr/usd/sdf/path.h"
36 #include "pxr/usd/usd/timeCode.h"
37 #include "pxr/usd/usdGeom/points.h"
38 
39 #include <maya/MFnDependencyNode.h>
40 #include <maya/MString.h>
41 
42 #include <utility>
43 #include <vector>
44 
45 
46 PXR_NAMESPACE_OPEN_SCOPE
47 
48 
49 class PxrUsdTranslators_ParticleWriter : public UsdMayaTransformWriter
50 {
51 public:
52  PxrUsdTranslators_ParticleWriter(
53  const MFnDependencyNode& depNodeFn,
54  const SdfPath& usdPath,
55  UsdMayaWriteJobContext& jobCtx);
56 
57  void Write(const UsdTimeCode& usdTime) override;
58 
59 private:
60  void writeParams(const UsdTimeCode& usdTime, UsdGeomPoints& points);
61 
62  enum ParticleType {
63  PER_PARTICLE_INT,
64  PER_PARTICLE_DOUBLE,
65  PER_PARTICLE_VECTOR
66  };
67 
68  std::vector<std::tuple<TfToken, MString, ParticleType>> mUserAttributes;
69  bool mInitialFrameDone;
70 
71  void initializeUserAttributes();
72 };
73 
74 
75 PXR_NAMESPACE_CLOSE_SCOPE
76 
77 
78 #endif
Points are analogous to the RiPoints spec.
Definition: points.h:66
Provides basic functionality and access to shared data for UsdMayaPrimWriters.
PXRUSDMAYA_API void Write(const UsdTimeCode &usdTime) override
Main export function that runs when the traversal hits the node.
Represent a time value, which may be either numeric, holding a double value, or a sentinel value UsdT...
Definition: timeCode.h:85
A path value used to locate objects in layers or scenegraphs.
Definition: path.h:287
Writes transforms and serves as the base class for custom transform writers.