# encoding: utf-8 # module vtkmodules.vtkRenderingOpenGL2 # from C:\Users\xukai\Downloads\发票2\venv\Lib\site-packages\vtkmodules\vtkRenderingOpenGL2.cp311-win_amd64.pyd # by generator 1.147 # no doc # imports import vtkmodules.vtkCommonCore as __vtkmodules_vtkCommonCore import vtkmodules.vtkRenderingCore as __vtkmodules_vtkRenderingCore import vtkmodules.vtkRenderingHyperTreeGrid as __vtkmodules_vtkRenderingHyperTreeGrid class vtkOpenGLInstanceCulling(__vtkmodules_vtkCommonCore.vtkObject): """ vtkOpenGLInstanceCulling - Frustum culling and LOD management. Superclass: vtkObject This class is used to cull instances based on their transformation matrix. It was designed to improve performances when there is large number of instances in vtkOpenGLGlyph3DMapper. Each instance is tested on the GPU through vertex shader to know if it is inside of the frustum view. If it is, the distance to the camera is computed to select and send to the geometry shader the corresponding LOD index. The geometry shader register the instance to the corresponding vertex stream and therefore the corresponding transform feedback buffer in video memory. @warning GL_ARB_gpu_shader5 extension is required. {.cpp} vtkNewculling; vtkIdType nbInstances = 1000000; // buffer of size 16*nbInstances containing transform matrices. vtkOpenGLBufferObject* bufferMatrix = ...; // buffer of size 4*nbInstances containing color buffer to pass through. vtkOpenGLBufferObject* bufferColor = ...; // Initialize LODs culling->InitLOD(polydata); // LOD0 : full geometry culling->AddLOD(2.0, 0.5); // LOD1 : after 2.0, 50% triangles culling->AddLOD(5.0, 0.99); // LOD2 : after 5.0, 1% triangles // Build shader and binds culling->BuildCullingShaders(ren, actor, nbInstances); culling->RunCullingShaders(nbInstances, bufferMatrix, bufferColor); // Get number of instances in LOD 0 int nbInstInLOD0 = culling->GetLOD(0).NumberOfInstances; // Get VBO and IBO of LOD 1 vtkOpenGLBufferObject* VBO1 = culling->GetLOD(1).PositionVBO; vtkOpenGLBufferObject* IBO1 = culling->GetLOD(1).IBO; // Get instances buffer of LOD 2 // buffer is interleaved [ transformMatrix0 color0 transformMatrix1 color1 ... ] vtkOpenGLBufferObject* buffer2 = culling->GetLODBuffer(2); """ def AddLOD(self, distance, targetReduction): # real signature unknown; restored from __doc__ """ AddLOD(self, distance:float, targetReduction:float) -> None C++: void AddLOD(float distance, float targetReduction) Add a level of detail. distance is the distance after which LOD is enabled targetReduction is the reduction factor applied on polydata (vtkDecimatePro is used) @sa vtkDecimatePro::SetTargetReduction """ pass def BuildCullingShaders(self, cache, numInstances, withNormals): # real signature unknown; restored from __doc__ """ BuildCullingShaders(self, cache:vtkOpenGLShaderCache, numInstances:int, withNormals:bool) -> None C++: void BuildCullingShaders(vtkOpenGLShaderCache *cache, vtkIdType numInstances, bool withNormals) Build culling shader program (if not created yet) and binds it. """ pass def GetColorLOD(self): # real signature unknown; restored from __doc__ """ GetColorLOD(self) -> bool C++: virtual bool GetColorLOD() """ return False def GetHelper(self): # real signature unknown; restored from __doc__ """ GetHelper(self) -> vtkOpenGLHelper C++: vtkOpenGLHelper &GetHelper() Get helper structure. """ return vtkOpenGLHelper def GetLODBuffer(self, index): # real signature unknown; restored from __doc__ """ GetLODBuffer(self, index:int) -> vtkOpenGLBufferObject C++: vtkOpenGLBufferObject *GetLODBuffer(vtkIdType index) Get the transform feedback buffer generated by the culling program. """ return vtkOpenGLBufferObject def GetNumberOfGenerationsFromBase(self, type): # real signature unknown; restored from __doc__ """ GetNumberOfGenerationsFromBase(self, type:str) -> int C++: vtkIdType GetNumberOfGenerationsFromBase(const char *type) override; Given the name of a base class of this class type, return the distance of inheritance between this class type and the named class (how many generations of inheritance are there between this class and the named class). If the named class is not in this class's inheritance tree, return a negative value. Valid responses will always be nonnegative. This method works in combination with vtkTypeMacro found in vtkSetGet.h. """ return 0 def GetNumberOfGenerationsFromBaseType(self, type): # real signature unknown; restored from __doc__ """ GetNumberOfGenerationsFromBaseType(type:str) -> int C++: static vtkIdType GetNumberOfGenerationsFromBaseType( const char *type) Given a the name of a base class of this class type, return the distance of inheritance between this class type and the named class (how many generations of inheritance are there between this class and the named class). If the named class is not in this class's inheritance tree, return a negative value. Valid responses will always be nonnegative. This method works in combination with vtkTypeMacro found in vtkSetGet.h. """ return 0 def GetNumberOfLOD(self): # real signature unknown; restored from __doc__ """ GetNumberOfLOD(self) -> int C++: vtkIdType GetNumberOfLOD() Get number of LOD currently declared. """ return 0 def InitLOD(self, pd): # real signature unknown; restored from __doc__ """ InitLOD(self, pd:vtkPolyData) -> None C++: void InitLOD(vtkPolyData *pd) Initialize LOD with a polydata """ pass def IsA(self, type): # real signature unknown; restored from __doc__ """ IsA(self, type:str) -> int C++: vtkTypeBool IsA(const char *type) override; Return 1 if this class is the same type of (or a subclass of) the named class. Returns 0 otherwise. This method works in combination with vtkTypeMacro found in vtkSetGet.h. """ return 0 def IsTypeOf(self, type): # real signature unknown; restored from __doc__ """ IsTypeOf(type:str) -> int C++: static vtkTypeBool IsTypeOf(const char *type) Return 1 if this class type is the same type of (or a subclass of) the named class. Returns 0 otherwise. This method works in combination with vtkTypeMacro found in vtkSetGet.h. """ return 0 def NewInstance(self): # real signature unknown; restored from __doc__ """ NewInstance(self) -> vtkOpenGLInstanceCulling C++: vtkOpenGLInstanceCulling *NewInstance() """ return vtkOpenGLInstanceCulling def RunCullingShaders(self, numInstances, matrixBuffer, colorBuffer, normalBuffer): # real signature unknown; restored from __doc__ """ RunCullingShaders(self, numInstances:int, matrixBuffer:vtkOpenGLBufferObject, colorBuffer:vtkOpenGLBufferObject, normalBuffer:vtkOpenGLBufferObject) -> None C++: void RunCullingShaders(vtkIdType numInstances, vtkOpenGLBufferObject *matrixBuffer, vtkOpenGLBufferObject *colorBuffer, vtkOpenGLBufferObject *normalBuffer) Run the culling program and generate LOD buffers. """ pass def SafeDownCast(self, o): # real signature unknown; restored from __doc__ """ SafeDownCast(o:vtkObjectBase) -> vtkOpenGLInstanceCulling C++: static vtkOpenGLInstanceCulling *SafeDownCast( vtkObjectBase *o) """ return vtkOpenGLInstanceCulling def SetColorLOD(self, _arg): # real signature unknown; restored from __doc__ """ SetColorLOD(self, _arg:bool) -> None C++: virtual void SetColorLOD(bool _arg) Overload color with unique color per LOD. """ pass def __delattr__(self, *args, **kwargs): # real signature unknown """ Implement delattr(self, name). """ pass def __getattribute__(self, *args, **kwargs): # real signature unknown """ Return getattr(self, name). """ pass def __init__(self, *args, **kwargs): # real signature unknown pass @staticmethod # known case of __new__ def __new__(*args, **kwargs): # real signature unknown """ Create and return a new object. See help(type) for accurate signature. """ pass def __repr__(self, *args, **kwargs): # real signature unknown """ Return repr(self). """ pass def __setattr__(self, *args, **kwargs): # real signature unknown """ Implement setattr(self, name, value). """ pass def __str__(self, *args, **kwargs): # real signature unknown """ Return str(self). """ pass __this__ = property(lambda self: object(), lambda self, v: None, lambda self: None) # default """Pointer to the C++ object.""" __dict__ = None # (!) real value is "mappingproxy({'__vtkname__': 'vtkOpenGLInstanceCulling', 'IsTypeOf': , 'IsA': , 'SafeDownCast': , 'NewInstance': , 'GetNumberOfGenerationsFromBaseType': , 'GetNumberOfGenerationsFromBase': , 'InitLOD': , 'AddLOD': , 'BuildCullingShaders': , 'GetHelper': , 'GetNumberOfLOD': , 'GetLODBuffer': , 'RunCullingShaders': , 'SetColorLOD': , 'GetColorLOD': , '__new__': , '__repr__': , '__str__': , '__getattribute__': , '__setattr__': , '__delattr__': , '__dict__': , '__this__': , '__doc__': 'vtkOpenGLInstanceCulling - Frustum culling and LOD management.\\n\\nSuperclass: vtkObject\\n\\nThis class is used to cull instances based on their transformation\\nmatrix. It was designed to improve performances when there is large\\nnumber of instances in vtkOpenGLGlyph3DMapper.\\n\\nEach instance is tested on the GPU through vertex shader to know if\\nit is inside of the frustum view. If it is, the distance to the\\ncamera is computed to select and send to the geometry shader the\\ncorresponding LOD index. The geometry shader register the instance to\\nthe corresponding vertex stream and therefore the corresponding\\ntransform feedback buffer in video memory.\\n\\n@warning GL_ARB_gpu_shader5 extension is required.\\n\\n{.cpp}\\n\\nvtkNewculling; vtkIdType nbInstances = 1000000;\\n\\n// buffer of size 16*nbInstances containing transform matrices.\\nvtkOpenGLBufferObject* bufferMatrix = ...;\\n\\n// buffer of size 4*nbInstances containing color buffer to pass\\nthrough. vtkOpenGLBufferObject* bufferColor = ...;\\n\\n// Initialize LODs culling->InitLOD(polydata); // LOD0 : full\\ngeometry culling->AddLOD(2.0, 0.5); // LOD1 : after 2.0, 50%\\ntriangles culling->AddLOD(5.0, 0.99); // LOD2 : after 5.0, 1%\\ntriangles\\n\\n// Build shader and binds culling->BuildCullingShaders(ren, actor,\\nnbInstances); culling->RunCullingShaders(nbInstances, bufferMatrix,\\nbufferColor);\\n\\n// Get number of instances in LOD 0 int nbInstInLOD0 =\\nculling->GetLOD(0).NumberOfInstances;\\n\\n// Get VBO and IBO of LOD 1 vtkOpenGLBufferObject* VBO1 =\\nculling->GetLOD(1).PositionVBO; vtkOpenGLBufferObject* IBO1 =\\nculling->GetLOD(1).IBO;\\n\\n// Get instances buffer of LOD 2 // buffer is interleaved [\\ntransformMatrix0 color0 transformMatrix1 color1 ... ]\\nvtkOpenGLBufferObject* buffer2 = culling->GetLODBuffer(2);\\n\\n'})" __vtkname__ = 'vtkOpenGLInstanceCulling'