Fake OpenGL program for tracking FFP state in the way consistent to programmable pipeline.
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Public Types inherited from Standard_Transient |
typedef void | base_type |
| Returns a type descriptor about this object.
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| OpenGl_ShaderProgram (const Handle< Graphic3d_ShaderProgram > &theProxy=NULL, const TCollection_AsciiString &theId="") |
| Creates uninitialized shader program.
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virtual | ~OpenGl_ShaderProgram () |
| Releases resources of shader program.
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Standard_Boolean | Create (const Handle< OpenGl_Context > &theCtx) |
| Creates new empty shader program of specified type.
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virtual void | Release (OpenGl_Context *theCtx) override |
| Destroys shader program.
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virtual Standard_Size | EstimatedDataSize () const override |
| Returns estimated GPU memory usage - cannot be easily estimated.
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Standard_Boolean | AttachShader (const Handle< OpenGl_Context > &theCtx, const Handle< OpenGl_ShaderObject > &theShader) |
| Attaches shader object to the program object.
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Standard_Boolean | DetachShader (const Handle< OpenGl_Context > &theCtx, const Handle< OpenGl_ShaderObject > &theShader) |
| Detaches shader object to the program object.
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Standard_Boolean | Initialize (const Handle< OpenGl_Context > &theCtx, const Graphic3d_ShaderObjectList &theShaders) |
| Initializes program object with the list of shader objects.
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Standard_Boolean | Link (const Handle< OpenGl_Context > &theCtx, bool theIsVerbose=true) |
| Links the program object.
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Standard_Boolean | FetchInfoLog (const Handle< OpenGl_Context > &theCtx, TCollection_AsciiString &theLog) |
| Fetches information log of the last link operation.
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Standard_Boolean | ApplyVariables (const Handle< OpenGl_Context > &theCtx) |
| Fetches uniform variables from proxy shader program.
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const Handle< Graphic3d_ShaderProgram > & | Proxy () const |
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bool | IsValid () const |
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GLuint | ProgramId () const |
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Standard_Boolean | HasTessellationStage () const |
| Return TRUE if program defines tessellation stage.
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Standard_Integer | NbLightsMax () const |
| Return the length of array of light sources (THE_MAX_LIGHTS), to be used for initialization occLightSources (OpenGl_OCC_LIGHT_SOURCE_PARAMS).
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Standard_Integer | NbShadowMaps () const |
| Return the length of array of shadow maps (THE_NB_SHADOWMAPS); 0 by default.
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Standard_Integer | NbClipPlanesMax () const |
| Return the length of array of clipping planes (THE_MAX_CLIP_PLANES), to be used for initialization occClipPlaneEquations (OpenGl_OCC_CLIP_PLANE_EQUATIONS) and occClipPlaneChains (OpenGl_OCC_CLIP_PLANE_CHAINS).
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Standard_Integer | NbFragmentOutputs () const |
| Return the length of array of Fragment Shader outputs (THE_NB_FRAG_OUTPUTS), to be used for initialization occFragColorArray/occFragColorN.
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Standard_Boolean | HasAlphaTest () const |
| Return true if Fragment Shader should perform alpha test; FALSE by default.
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Graphic3d_RenderTransparentMethod | OitOutput () const |
| Return if Fragment Shader color should output the OIT values; OFF by default.
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Standard_Integer | TextureSetBits () const |
| Return texture units declared within the program,.
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OpenGl_ShaderUniformLocation | GetUniformLocation (const Handle< OpenGl_Context > &theCtx, const GLchar *theName) const |
| Returns location of the specific uniform variable.
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GLint | GetAttributeLocation (const Handle< OpenGl_Context > &theCtx, const GLchar *theName) const |
| Returns index of the generic vertex attribute by variable name.
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const OpenGl_ShaderUniformLocation & | GetStateLocation (OpenGl_StateVariable theVariable) const |
| Returns location of the OCCT state uniform variable.
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template<typename ValueType > |
bool | GetUniform (const Handle< OpenGl_Context > &theCtx, const GLchar *theName, ValueType &theValue) const |
| Returns the value of the uniform variable from given name.
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Standard_Boolean | GetUniform (const Handle< OpenGl_Context > &theCtx, GLint theLocation, OpenGl_Vec4i &theValue) const |
| Returns the value of the integer uniform variable. Wrapper for glGetUniformiv()
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Standard_Boolean | GetUniform (const Handle< OpenGl_Context > &theCtx, GLint theLocation, OpenGl_Vec4 &theValue) const |
| Returns the value of the float uniform variable. Wrapper for glGetUniformfv()
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template<typename ValueType > |
bool | GetAttribute (const Handle< OpenGl_Context > &theCtx, const GLchar *theName, ValueType &theValue) const |
| Returns the vertex attribute from given name.
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Standard_Boolean | GetAttribute (const Handle< OpenGl_Context > &theCtx, GLint theIndex, OpenGl_Vec4i &theValue) const |
| Returns the integer vertex attribute. Wrapper for glGetVertexAttribiv()
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Standard_Boolean | GetAttribute (const Handle< OpenGl_Context > &theCtx, GLint theIndex, OpenGl_Vec4 &theValue) const |
| Returns the float vertex attribute. Wrapper for glGetVertexAttribfv()
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Standard_Boolean | SetAttributeName (const Handle< OpenGl_Context > &theCtx, GLint theIndex, const GLchar *theName) |
| Wrapper for glBindAttribLocation()
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template<typename ValueType > |
bool | SetAttribute (const Handle< OpenGl_Context > &theCtx, const GLchar *theName, const ValueType &theValue) |
| Wrapper for glVertexAttrib*() for attribute with the given name.
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Standard_Boolean | SetAttribute (const Handle< OpenGl_Context > &theCtx, GLint theIndex, GLfloat theValue) |
| Wrapper for glVertexAttrib1f()
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Standard_Boolean | SetAttribute (const Handle< OpenGl_Context > &theCtx, GLint theIndex, const OpenGl_Vec2 &theValue) |
| Wrapper for glVertexAttrib2fv()
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Standard_Boolean | SetAttribute (const Handle< OpenGl_Context > &theCtx, GLint theIndex, const OpenGl_Vec3 &theValue) |
| Wrapper for glVertexAttrib3fv()
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Standard_Boolean | SetAttribute (const Handle< OpenGl_Context > &theCtx, GLint theIndex, const OpenGl_Vec4 &theValue) |
| Wrapper for glVertexAttrib4fv()
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template<typename ValueType > |
bool | SetUniform (const Handle< OpenGl_Context > &theCtx, const GLchar *theName, const ValueType &theValue) |
| Specifies the value of the uniform variable with given name.
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Standard_Boolean | SetUniform (const Handle< OpenGl_Context > &theCtx, GLint theLocation, GLint theValue) |
| Specifies the value of the integer uniform variable. Wrapper for glUniform1i()
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Standard_Boolean | SetUniform (const Handle< OpenGl_Context > &theCtx, GLint theLocation, const OpenGl_Vec2i &theValue) |
| Specifies the value of the integer uniform 2D vector. Wrapper for glUniform2iv()
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Standard_Boolean | SetUniform (const Handle< OpenGl_Context > &theCtx, GLint theLocation, const OpenGl_Vec3i &theValue) |
| Specifies the value of the integer uniform 3D vector. Wrapper for glUniform3iv()
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Standard_Boolean | SetUniform (const Handle< OpenGl_Context > &theCtx, GLint theLocation, const OpenGl_Vec4i &theValue) |
| Specifies the value of the integer uniform 4D vector. Wrapper for glUniform4iv()
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Standard_Boolean | SetUniform (const Handle< OpenGl_Context > &theCtx, GLint theLocation, const OpenGl_Vec2u &theValue) |
| Specifies the value of the unsigned integer uniform 2D vector (uvec2). Wrapper for glUniform2uiv()
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Standard_Boolean | SetUniform (const Handle< OpenGl_Context > &theCtx, const GLchar *theName, const GLsizei theCount, const OpenGl_Vec2u *theValue) |
| Specifies the value of the uvec2 uniform array Wrapper for glUniform2uiv()
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Standard_Boolean | SetUniform (const Handle< OpenGl_Context > &theCtx, GLint theLocation, const GLsizei theCount, const OpenGl_Vec2u *theValue) |
| Specifies the value of the uvec2 uniform array Wrapper for glUniform2uiv()
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Standard_Boolean | SetUniform (const Handle< OpenGl_Context > &theCtx, GLint theLocation, GLfloat theValue) |
| Specifies the value of the float uniform variable. Wrapper for glUniform1f()
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Standard_Boolean | SetUniform (const Handle< OpenGl_Context > &theCtx, GLint theLocation, const OpenGl_Vec2 &theValue) |
| Specifies the value of the float uniform 2D vector. Wrapper for glUniform2fv()
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Standard_Boolean | SetUniform (const Handle< OpenGl_Context > &theCtx, GLint theLocation, const OpenGl_Vec3 &theValue) |
| Specifies the value of the float uniform 3D vector. Wrapper for glUniform3fv()
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Standard_Boolean | SetUniform (const Handle< OpenGl_Context > &theCtx, GLint theLocation, const OpenGl_Vec4 &theValue) |
| Specifies the value of the float uniform 4D vector. Wrapper for glUniform4fv()
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Standard_Boolean | SetUniform (const Handle< OpenGl_Context > &theCtx, GLint theLocation, GLuint theCount, const NCollection_Mat3< float > *theData) |
| Specifies the value of the array of float uniform 3x3 matrices. Wrapper over glUniformMatrix3fv().
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bool | SetUniform (const Handle< OpenGl_Context > &theCtx, const GLchar *theName, const OpenGl_Mat4 &theValue, GLboolean theTranspose=GL_FALSE) |
| Specifies the value of the float uniform 4x4 matrix. Wrapper for glUniformMatrix4fv()
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Standard_Boolean | SetUniform (const Handle< OpenGl_Context > &theCtx, GLint theLocation, const OpenGl_Mat4 &theValue, GLboolean theTranspose=GL_FALSE) |
| Specifies the value of the float uniform 4x4 matrix. Wrapper for glUniformMatrix4fv()
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Standard_Boolean | SetUniform (const Handle< OpenGl_Context > &theCtx, GLint theLocation, GLuint theCount, const OpenGl_Mat4 *theData) |
| Specifies the value of the array of float uniform 4x4 matrices. Wrapper over glUniformMatrix4fv().
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Standard_Boolean | SetUniform (const Handle< OpenGl_Context > &theCtx, GLint theLocation, GLuint theCount, const Standard_ShortReal *theData) |
| Specifies the value of the float uniform array Wrapper over glUniform1fv()
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Standard_Boolean | SetUniform (const Handle< OpenGl_Context > &theCtx, GLint theLocation, GLuint theCount, const OpenGl_Vec2 *theData) |
| Specifies the value of the float2 uniform array Wrapper over glUniform2fv()
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Standard_Boolean | SetUniform (const Handle< OpenGl_Context > &theCtx, GLint theLocation, GLuint theCount, const OpenGl_Vec3 *theData) |
| Specifies the value of the float3 uniform array Wrapper over glUniform3fv()
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Standard_Boolean | SetUniform (const Handle< OpenGl_Context > &theCtx, GLint theLocation, GLuint theCount, const OpenGl_Vec4 *theData) |
| Specifies the value of the float4 uniform array Wrapper over glUniform4fv()
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Standard_Boolean | SetUniform (const Handle< OpenGl_Context > &theCtx, GLint theLocation, GLuint theCount, const Standard_Integer *theData) |
| Specifies the value of the integer uniform array Wrapper over glUniform1iv()
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Standard_Boolean | SetUniform (const Handle< OpenGl_Context > &theCtx, GLint theLocation, GLuint theCount, const OpenGl_Vec2i *theData) |
| Specifies the value of the int2 uniform array Wrapper over glUniform2iv()
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Standard_Boolean | SetUniform (const Handle< OpenGl_Context > &theCtx, GLint theLocation, GLuint theCount, const OpenGl_Vec3i *theData) |
| Specifies the value of the int3 uniform array Wrapper over glUniform3iv()
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Standard_Boolean | SetUniform (const Handle< OpenGl_Context > &theCtx, GLint theLocation, GLuint theCount, const OpenGl_Vec4i *theData) |
| Specifies the value of the int4 uniform array Wrapper over glUniform4iv()
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bool | SetSampler (const Handle< OpenGl_Context > &theCtx, const GLchar *theName, const Graphic3d_TextureUnit theTextureUnit) |
| Specifies the value of the sampler uniform variable.
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Standard_Boolean | SetSampler (const Handle< OpenGl_Context > &theCtx, GLint theLocation, const Graphic3d_TextureUnit theTextureUnit) |
| Specifies the value of the sampler uniform variable.
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Standard_Boolean | UpdateDebugDump (const Handle< OpenGl_Context > &theCtx, const TCollection_AsciiString &theFolder="", Standard_Boolean theToBeautify=Standard_False, Standard_Boolean theToReset=Standard_False) |
| Update the shader program from external files (per shader stage) in the following way: 1) If external file does not exist, then it will be created (current source code will be dumped, no recompilation) and FALSE will be returned. 2) If external file exists and it has the same timestamp as myDumpDate, nothing will be done and FALSE will be returned. 3) If external file exists and it has newer timestamp than myDumpDate, shader will be recompiled and relinked and TRUE will be returned.
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| OpenGl_NamedResource (const TCollection_AsciiString &theId) |
| Empty constructor.
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const TCollection_AsciiString & | ResourceId () const |
| Return resource name.
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| OpenGl_Resource () |
| Empty constructor.
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virtual | ~OpenGl_Resource () |
| Destructor. Inheritors should call Clean (NULL) within it.
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virtual void | DumpJson (Standard_OStream &theOStream, Standard_Integer theDepth=-1) const |
| Dumps the content of me into the stream.
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Public Member Functions inherited from Standard_Transient |
| Standard_Transient () |
| Empty constructor.
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| Standard_Transient (const Standard_Transient &) |
| Copy constructor – does nothing.
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Standard_Transient & | operator= (const Standard_Transient &) |
| Assignment operator, needed to avoid copying reference counter.
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virtual | ~Standard_Transient () |
| Destructor must be virtual.
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virtual const opencascade::handle< Standard_Type > & | DynamicType () const |
| Returns a type descriptor about this object.
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Standard_Boolean | IsInstance (const opencascade::handle< Standard_Type > &theType) const |
| Returns a true value if this is an instance of Type.
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Standard_Boolean | IsInstance (const Standard_CString theTypeName) const |
| Returns a true value if this is an instance of TypeName.
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Standard_Boolean | IsKind (const opencascade::handle< Standard_Type > &theType) const |
| Returns true if this is an instance of Type or an instance of any class that inherits from Type. Note that multiple inheritance is not supported by OCCT RTTI mechanism.
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Standard_Boolean | IsKind (const Standard_CString theTypeName) const |
| Returns true if this is an instance of TypeName or an instance of any class that inherits from TypeName. Note that multiple inheritance is not supported by OCCT RTTI mechanism.
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Standard_Transient * | This () const |
| Returns non-const pointer to this object (like const_cast). For protection against creating handle to objects allocated in stack or call from constructor, it will raise exception Standard_ProgramError if reference counter is zero.
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Standard_Integer | GetRefCount () const noexcept |
| Get the reference counter of this object.
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void | IncrementRefCounter () noexcept |
| Increments the reference counter of this object.
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Standard_Integer | DecrementRefCounter () noexcept |
| Decrements the reference counter of this object; returns the decremented value.
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virtual void | Delete () const |
| Memory deallocator for transient classes.
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static bool | compileShaderVerbose (const Handle< OpenGl_Context > &theCtx, const Handle< OpenGl_ShaderObject > &theShader, const TCollection_AsciiString &theSource, bool theToPrintSource=true) |
| Wrapper for compiling shader object with verbose printing on error.
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Static Public Member Functions inherited from Standard_Transient |
static constexpr const char * | get_type_name () |
| Returns a type descriptor about this object.
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static const opencascade::handle< Standard_Type > & | get_type_descriptor () |
| Returns type descriptor of Standard_Transient class.
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static const GLuint | NO_PROGRAM = 0 |
| Non-valid shader name.
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static const GLint | INVALID_LOCATION = -1 |
| Invalid location of uniform/attribute variable.
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static Standard_CString | PredefinedKeywords [OpenGl_OCCT_NUMBER_OF_STATE_VARIABLES] |
| List of pre-defined OCCT state uniform variables.
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GLuint | myProgramID |
| Handle of OpenGL shader program.
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OpenGl_ShaderList | myShaderObjects |
| List of attached shader objects.
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Handle< Graphic3d_ShaderProgram > | myProxy |
| Proxy shader program (from application layer)
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Standard_Integer | myShareCount |
| program users count, initialized with 1 (already shared by one user)
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Standard_Integer | myNbLightsMax |
| length of array of light sources (THE_MAX_LIGHTS)
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Standard_Integer | myNbShadowMaps |
| length of array of shadow maps (THE_NB_SHADOWMAPS)
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Standard_Integer | myNbClipPlanesMax |
| length of array of clipping planes (THE_MAX_CLIP_PLANES)
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Standard_Integer | myNbFragOutputs |
| length of array of Fragment Shader outputs (THE_NB_FRAG_OUTPUTS)
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Standard_Integer | myTextureSetBits |
| texture units declared within the program,
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Graphic3d_RenderTransparentMethod | myOitOutput |
| flag indicating that Fragment Shader includes OIT outputs
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Standard_Boolean | myHasAlphaTest |
| flag indicating that Fragment Shader should perform alpha-test
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Standard_Boolean | myHasTessShader |
| flag indicating that program defines tessellation stage
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Standard_Size | myCurrentState [OpenGl_UniformStateType_NB] |
| defines last modification for variables of each state type
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OpenGl_ShaderUniformLocation | myStateLocations [OpenGl_OCCT_NUMBER_OF_STATE_VARIABLES] |
| Stores locations of OCCT state uniform variables.
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TCollection_AsciiString | myResourceId |
| resource name
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static OpenGl_VariableSetterSelector | mySetterSelector |
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