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29 lines
1.6 KiB
C++
29 lines
1.6 KiB
C++
// Copyright (c) 2018 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 _Graphic3d_AlphaMode_HeaderFile
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#define _Graphic3d_AlphaMode_HeaderFile
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//! Defines how alpha value of base color / texture should be treated.
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enum Graphic3d_AlphaMode
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{
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Graphic3d_AlphaMode_Opaque = 0, //!< rendered output is fully opaque and alpha value is ignored
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Graphic3d_AlphaMode_Mask, //!< rendered output is either fully opaque or fully transparent depending on the alpha value and the alpha cutoff value
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Graphic3d_AlphaMode_Blend, //!< rendered output is combined with the background
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Graphic3d_AlphaMode_BlendAuto = -1, //!< special value defined for backward compatibility - it is equal to Graphic3d_AlphaMode_Blend when Material transparency is not zero and Graphic3d_AlphaMode_Opaque otherwise;
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// since this check ignores possible transparency defined by per-vertex colors and textures - NOT recommended to use!
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};
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#endif // _Graphic3d_AlphaModeHeaderFile
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