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basisCurves.h
1//
2// Copyright 2016 Pixar
3//
4// Licensed under the Apache License, Version 2.0 (the "Apache License")
5// with the following modification; you may not use this file except in
6// compliance with the Apache License and the following modification to it:
7// Section 6. Trademarks. is deleted and replaced with:
8//
9// 6. Trademarks. This License does not grant permission to use the trade
10// names, trademarks, service marks, or product names of the Licensor
11// and its affiliates, except as required to comply with Section 4(c) of
12// the License and to reproduce the content of the NOTICE file.
13//
14// You may obtain a copy of the Apache License at
15//
16// http://www.apache.org/licenses/LICENSE-2.0
17//
18// Unless required by applicable law or agreed to in writing, software
19// distributed under the Apache License with the above modification is
20// distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
21// KIND, either express or implied. See the Apache License for the specific
22// language governing permissions and limitations under the Apache License.
23//
24#ifndef PXR_IMAGING_HD_BASIS_CURVES_H
25#define PXR_IMAGING_HD_BASIS_CURVES_H
26
27#include "pxr/pxr.h"
28#include "pxr/imaging/hd/api.h"
29#include "pxr/imaging/hd/version.h"
30#include "pxr/imaging/hd/rprim.h"
31
32PXR_NAMESPACE_OPEN_SCOPE
33
34#define HD_BASISCURVES_REPR_DESC_TOKENS \
35 (surfaceShader) \
36 (surfaceShaderUnlit) \
37 (hullColor) \
38 (pointColor)
39
40TF_DECLARE_PUBLIC_TOKENS(HdBasisCurvesReprDescTokens, HD_API,
41 HD_BASISCURVES_REPR_DESC_TOKENS);
42
48{
50 HdBasisCurvesGeomStyle geomStyle = HdBasisCurvesGeomStyleInvalid,
51 TfToken shadingTerminal = HdBasisCurvesReprDescTokens->surfaceShader)
52 : geomStyle(geomStyle),
54 {}
55
56 bool IsEmpty() const {
57 return geomStyle == HdBasisCurvesGeomStyleInvalid;
58 }
59
60 HdBasisCurvesGeomStyle geomStyle;
64};
65
68class HdBasisCurves : public HdRprim
69{
70public:
71 HD_API
72 ~HdBasisCurves() override;
73
78 inline HdDisplayStyle GetDisplayStyle(HdSceneDelegate* delegate) const;
79
80 HD_API
81 TfTokenVector const & GetBuiltinPrimvarNames() const override;
82
84 HD_API
85 static void ConfigureRepr(TfToken const &reprName,
87
89 HD_API
91
92protected:
93 HD_API
94 HdBasisCurves(SdfPath const& id);
95
96 using _BasisCurvesReprConfig = _ReprDescConfigs<HdBasisCurvesReprDesc>;
97
98 HD_API
99 static _BasisCurvesReprConfig::DescArray
100 _GetReprDesc(TfToken const &reprName);
101
102private:
103 // Class can not be default constructed or copied.
104 HdBasisCurves() = delete;
105 HdBasisCurves(const HdBasisCurves &) = delete;
106 HdBasisCurves &operator =(const HdBasisCurves &) = delete;
107
108 static _BasisCurvesReprConfig _reprDescConfig;
109};
110
113{
114 return delegate->GetBasisCurvesTopology(GetId());
115}
116
117inline HdDisplayStyle
118HdBasisCurves::GetDisplayStyle(HdSceneDelegate* delegate) const
119{
120 return delegate->GetDisplayStyle(GetId());
121}
122
123
124PXR_NAMESPACE_CLOSE_SCOPE
125
126#endif // PXR_IMAGING_HD_BASIS_CURVES_H
Hydra Schema for a collection of curves using a particular basis.
Definition: basisCurves.h:69
static HD_API bool IsEnabledForceRefinedCurves()
Returns whether refinement is always on or not.
static HD_API void ConfigureRepr(TfToken const &reprName, HdBasisCurvesReprDesc desc)
Configure geometric style of drawItems for reprName.
HdBasisCurvesTopology GetBasisCurvesTopology(HdSceneDelegate *delegate) const
Topology.
Definition: basisCurves.h:112
HD_API TfTokenVector const & GetBuiltinPrimvarNames() const override
Returns the names of built-in primvars, i.e.
Topology data for basisCurves.
The render engine state for a given rprim from the scene graph.
Definition: rprim.h:55
SdfPath const & GetId() const
Returns the identifier of this Rprim.
Definition: rprim.h:163
Adapter class providing data exchange with the client scene graph.
virtual HD_API HdDisplayStyle GetDisplayStyle(SdfPath const &id)
Returns the refinement level for the given prim in the range [0,8].
virtual HD_API HdBasisCurvesTopology GetBasisCurvesTopology(SdfPath const &id)
Gets the topological curve data for a given prim.
A path value used to locate objects in layers or scenegraphs.
Definition: path.h:290
Token for efficient comparison, assignment, and hashing of known strings.
Definition: token.h:88
#define TF_DECLARE_PUBLIC_TOKENS(...)
Macro to define public tokens.
Definition: staticTokens.h:98
Descriptor to configure a drawItem for a repr.
Definition: basisCurves.h:48
TfToken shadingTerminal
Specifies how the fragment color should be computed from primvar; this can be used to render heatmap ...
Definition: basisCurves.h:63
Describes how the geometry of a prim should be displayed.
Definition: sceneDelegate.h:81
std::vector< TfToken > TfTokenVector
Convenience types.
Definition: token.h:457