include/opencascade/RWGltf_GltfAlphaMode.hxx

0001 // Author: Kirill Gavrilov
0002 // Copyright (c) 2019 OPEN CASCADE SAS
0003 //
0004 // This file is part of Open CASCADE Technology software library.
0005 //
0006 // This library is free software; you can redistribute it and/or modify it under
0007 // the terms of the GNU Lesser General Public License version 2.1 as published
0008 // by the Free Software Foundation, with special exception defined in the file
0009 // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
0010 // distribution for complete text of the license and disclaimer of any warranty.
0011 //
0012 // Alternatively, this file may be used under the terms of Open CASCADE
0013 // commercial license or contractual agreement.
0014
0015 #ifndef _RWGltf_GltfAlphaMode_HeaderFile
0016 #define _RWGltf_GltfAlphaMode_HeaderFile
0017
0018 #include <Standard_CString.hxx>
0019
0020 //! Low-level glTF enumeration defining Alpha Mode.
0021 enum RWGltf_GltfAlphaMode
0022 {
0023   RWGltf_GltfAlphaMode_Opaque, //!< alpha value is ignored and the rendered output is fully opaque
0024   RWGltf_GltfAlphaMode_Mask,   //!< rendered output is either fully opaque or fully transparent depending on the alpha value and the specified alpha cutoff value
0025   RWGltf_GltfAlphaMode_Blend,  //!< alpha value is used to composite the source and destination areas
0026 };
0027
0028 //! Parse RWGltf_GltfAlphaMode from string.
0029 inline RWGltf_GltfAlphaMode RWGltf_GltfParseAlphaMode (const char* theType)
0030 {
0031   if (IsEqual ("OPAQUE", theType))
0032   {
0033     return RWGltf_GltfAlphaMode_Opaque;
0034   }
0035   else if (IsEqual ("MASK", theType))
0036   {
0037     return RWGltf_GltfAlphaMode_Mask;
0038   }
0039   else if (IsEqual ("BLEND", theType))
0040   {
0041     return RWGltf_GltfAlphaMode_Blend;
0042   }
0043   return RWGltf_GltfAlphaMode_Opaque;
0044 }
0045
0046 #endif // _RWGltf_GltfAlphaMode_HeaderFile