Visualization Library 2.0.0-b3

A lightweight C++ OpenGL middleware for 2D/3D graphics

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PatchParameter.hpp
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31 
32 #ifndef PatchParameter_INCLUDE_ONCE
33 #define PatchParameter_INCLUDE_ONCE
34 
35 #include <vlCore/Object.hpp>
36 
37 namespace vl
38 {
39  //------------------------------------------------------------------------------
40  // PatchParameter
41  //------------------------------------------------------------------------------
44  class PatchParameter: public Object
45  {
47 
48  public:
51  {
52  VL_DEBUG_SET_OBJECT_NAME()
53  }
54 
56  void apply() const
57  {
58  VL_CHECK(Has_GL_ARB_tessellation_shader||Has_GL_Version_4_0);
59  if (Has_GL_ARB_tessellation_shader||Has_GL_Version_4_0)
60  {
61  glPatchParameteri(GL_PATCH_VERTICES, mPatchVertices); VL_CHECK_OGL();
62  glPatchParameterfv(GL_PATCH_DEFAULT_OUTER_LEVEL, mPatchDefaultOuterLevel.ptr()); VL_CHECK_OGL();
63  glPatchParameterfv(GL_PATCH_DEFAULT_INNER_LEVEL, mPatchDefaultInnerLevel.ptr()); VL_CHECK_OGL();
64  }
65  }
66 
73  void setPatchVertices(int vertices) { mPatchVertices = vertices; }
74 
76  int patchVertices() const { return mPatchVertices; }
77 
81 
85 
89 
93 
94  protected:
98  };
99 }
100 
101 #endif
bool Has_GL_Version_4_0
Definition: OpenGL.cpp:60
#define VL_INSTRUMENT_CLASS(ClassName, BaseClass)
Definition: TypeInfo.hpp:122
void setPatchVertices(int vertices)
Specifies the number of vertices that will be used to make up a single patch primitive.
void setPatchDefaultInnerLevel(const fvec2 &level)
The two floating-point values corresponding to the tow inner tessellation levels for each subsequent ...
Visualization Library main namespace.
T_Scalar * ptr()
Definition: Vector2.hpp:129
void apply() const
Applies the glPatchParameter values.
The base class for all the reference counted objects.
Definition: Object.hpp:158
void setPatchDefaultOuterLevel(const fvec4 &level)
The four floating-point values corresponding to the four outer tessellation levels for each subsequen...
int patchVertices() const
Returns the number of vertices that will be used to make up a single patch primitive.
PatchParameter()
Constructor.
#define VL_CHECK_OGL()
Definition: OpenGL.hpp:156
T_Scalar * ptr()
Definition: Vector4.hpp:98
const fvec2 & patchDefaultInnerLevel() const
The two floating-point values corresponding to the tow inner tessellation levels for each subsequent ...
#define VL_CHECK(expr)
Definition: checks.hpp:73
const fvec4 & patchDefaultOuterLevel() const
The four floating-point values corresponding to the four outer tessellation levels for each subsequen...
Wrapper of glPatchParameter(), specifies the parameters for patch primitives, used by vl::DrawCall::s...