1 // Created on: 1993-03-31
2 // Created by: NW,JPB,CAL
3 // Copyright (c) 1993-1999 Matra Datavision
4 // Copyright (c) 1999-2014 OPEN CASCADE SAS
6 // This file is part of Open CASCADE Technology software library.
8 // This library is free software; you can redistribute it and/or modify it under
9 // the terms of the GNU Lesser General Public License version 2.1 as published
10 // by the Free Software Foundation, with special exception defined in the file
11 // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
12 // distribution for complete text of the license and disclaimer of any warranty.
14 // Alternatively, this file may be used under the terms of Open CASCADE
15 // commercial license or contractual agreement.
17 #ifndef _Graphic3d_TypeOfPrimitiveArray_HeaderFile
18 #define _Graphic3d_TypeOfPrimitiveArray_HeaderFile
20 //! The type of primitive array in a group in a structure.
21 enum Graphic3d_TypeOfPrimitiveArray
23 Graphic3d_TOPA_UNDEFINED, //!< undefined primitive type
24 // main rendering types
25 Graphic3d_TOPA_POINTS, //!< individual points
26 Graphic3d_TOPA_SEGMENTS, //!< segments array - each 2 vertexes define 1 segment
27 Graphic3d_TOPA_POLYLINES, //!< line strip - each new vertex in array defines segment with previous one
28 Graphic3d_TOPA_TRIANGLES, //!< triangle array - each 3 vertexes define 1 triangle
29 Graphic3d_TOPA_TRIANGLESTRIPS, //!< triangle strip - each new vertex in array defines triangle with 2 previous vertexes
30 Graphic3d_TOPA_TRIANGLEFANS, //!< triangle fan - each new vertex in array define triangle with the previous vertex and the very first vertex (fan center)
31 // rendering type with auxiliary adjacent info (can be accessed only within Geometry shader)
32 Graphic3d_TOPA_LINES_ADJACENCY, //!< ADVANCED - same as Graphic3d_TOPA_SEGMENTS, but each pair of vertexes defining 1 segment
33 //! is preceded by 1 extra vertex and followed by 1 extra vertex which are not actually rendered
34 Graphic3d_TOPA_LINE_STRIP_ADJACENCY, //!< ADVANCED - same as Graphic3d_TOPA_POLYLINES, but each sequence of vertexes defining 1 polyline
35 //! is preceded by 1 extra vertex and followed by 1 extra vertex which are not actually rendered
36 Graphic3d_TOPA_TRIANGLES_ADJACENCY, //!< ADVANCED - same as Graphic3d_TOPA_TRIANGLES, but each vertex defining of triangle
37 //! is followed by 1 extra adjacent vertex which is not actually rendered
38 Graphic3d_TOPA_TRIANGLE_STRIP_ADJACENCY, //!< ADVANCED - same as Graphic3d_TOPA_TRIANGLESTRIPS, but with extra adjacent vertexes
39 // deprecated types, unsupported by mobile hardware
40 Graphic3d_TOPA_QUADRANGLES, //!< DEPRECATED - triangle array should be used instead;
41 //! array of quads - each 4 vertexes define single quad
42 Graphic3d_TOPA_QUADRANGLESTRIPS, //!< DEPRECATED - triangle array should be used instead;
43 //! quad strip - each 2 new vertexes define a quad shared 2 more vertexes of previous quad
44 Graphic3d_TOPA_POLYGONS //!< DEPRECATED - triangle array should be used instead;
45 //! array defines a polygon
48 #endif // _Graphic3d_TypeOfPrimitiveArray_HeaderFile