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0029517: Visualization - introduce AlphaMode property defining alpha value handling options

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kgv
2018-02-20 16:32:52 +03:00
committed by bugmaster
parent ff6d145402
commit c40eb6b950
29 changed files with 371 additions and 63 deletions
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7
src/OpenGl/OpenGl_Context.hxx
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@@ -646,6 +646,12 @@ public: //! @name methods to alter or retrieve current state
//! Enable/disable writing into color buffer (wrapper for glColorMask).
Standard_EXPORT bool SetColorMask (bool theToWriteColor);
//! Return GL_SAMPLE_ALPHA_TO_COVERAGE state.
bool SampleAlphaToCoverage() const { return myAlphaToCoverage; }
//! Enable/disable GL_SAMPLE_ALPHA_TO_COVERAGE.
Standard_EXPORT bool SetSampleAlphaToCoverage (bool theToEnable);
//! Return back face culling state.
bool ToCullBackFaces() const { return myToCullBackFaces; }
@@ -929,6 +935,7 @@ private: //! @name fields tracking current state
OpenGl_DrawBuffers myDrawBuffers; //!< current draw buffers
unsigned int myDefaultVao; //!< default Vertex Array Object
Standard_Boolean myColorMask; //!< flag indicating writing into color buffer is enabled or disabled (glColorMask)
Standard_Boolean myAlphaToCoverage; //!< flag indicating GL_SAMPLE_ALPHA_TO_COVERAGE state
Standard_Boolean myIsGlDebugCtx; //!< debug context initialization state
TCollection_AsciiString myVendor; //!< Graphics Driver's vendor
TColStd_PackedMapOfInteger myFilters[6]; //!< messages suppressing filter (for sources from GL_DEBUG_SOURCE_API_ARB to GL_DEBUG_SOURCE_OTHER_ARB)