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1a7ece8f23
OpenGl_Structure::Render() now checks if structure is entirely clipped to skip rendering at all, or entirely NOT clipped to disable clipping / capping plane. OpenGl_ShaderManager now defines dedicated GLSL programs for one and two clipping planes to optimize rendering on slow hardware.
64 lines
2.2 KiB
C++
64 lines
2.2 KiB
C++
// Created on: 2014-10-08
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// Created by: Kirill Gavrilov
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// Copyright (c) 2014 OPEN CASCADE SAS
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//
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// This file is part of Open CASCADE Technology software library.
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//
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// This library is free software; you can redistribute it and/or modify it under
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// the terms of the GNU Lesser General Public License version 2.1 as published
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// by the Free Software Foundation, with special exception defined in the file
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// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
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// distribution for complete text of the license and disclaimer of any warranty.
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//
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// Alternatively, this file may be used under the terms of Open CASCADE
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// commercial license or contractual agreement.
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#ifndef _OpenGl_SetOfShaderPrograms_HeaderFile
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#define _OpenGl_SetOfShaderPrograms_HeaderFile
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#include <NCollection_DataMap.hxx>
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#include <OpenGl_ShaderProgram.hxx>
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//! Standard GLSL program combination bits.
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enum OpenGl_ProgramOptions
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{
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OpenGl_PO_Point = 0x001, //!< point marker
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OpenGl_PO_VertColor = 0x002, //!< per-vertex color
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OpenGl_PO_TextureRGB = 0x004, //!< handle RGB texturing
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OpenGl_PO_TextureA = 0x008, //!< handle Alpha texturing
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OpenGl_PO_TextureEnv = 0x010, //!< handle environment map
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OpenGl_PO_StippleLine = 0x020, //!< stipple line
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OpenGl_PO_ClipPlanes1 = 0x040, //!< handle 1 clipping plane
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OpenGl_PO_ClipPlanes2 = 0x080, //!< handle 2 clipping planes
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OpenGl_PO_ClipPlanesN = 0x100, //!< handle N clipping planes
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OpenGl_PO_NB = 0x200 //!< overall number of combinations
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};
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//! Alias to programs array of predefined length
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class OpenGl_SetOfShaderPrograms : public Standard_Transient
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{
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public:
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//! Empty constructor
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OpenGl_SetOfShaderPrograms() {}
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//! Access program by index
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Handle(OpenGl_ShaderProgram)& ChangeValue (const Standard_Integer theIndex) { return myPrograms[theIndex]; }
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protected:
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Handle(OpenGl_ShaderProgram) myPrograms[OpenGl_PO_NB]; //!< programs array
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public:
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DEFINE_STANDARD_RTTI_INLINE(OpenGl_SetOfShaderPrograms,Standard_Transient)
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};
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DEFINE_STANDARD_HANDLE(OpenGl_SetOfShaderPrograms, Standard_Transient)
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typedef NCollection_DataMap<TCollection_AsciiString, Handle(OpenGl_SetOfShaderPrograms)> OpenGl_MapOfShaderPrograms;
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#endif // _OpenGl_SetOfShaderPrograms_HeaderFile
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