Panda3D
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xFileFace.cxx
00001 // Filename: xFileFace.cxx
00002 // Created by:  drose (19Jun01)
00003 //
00004 ////////////////////////////////////////////////////////////////////
00005 //
00006 // PANDA 3D SOFTWARE
00007 // Copyright (c) Carnegie Mellon University.  All rights reserved.
00008 //
00009 // All use of this software is subject to the terms of the revised BSD
00010 // license.  You should have received a copy of this license along
00011 // with this source code in a file named "LICENSE."
00012 //
00013 ////////////////////////////////////////////////////////////////////
00014 
00015 #include "xFileFace.h"
00016 #include "xFileMesh.h"
00017 #include "eggPolygon.h"
00018 
00019 ////////////////////////////////////////////////////////////////////
00020 //     Function: XFileFace::Constructor
00021 //       Access: Public
00022 //  Description:
00023 ////////////////////////////////////////////////////////////////////
00024 XFileFace::
00025 XFileFace() {
00026   _material_index = -1;
00027 }
00028 
00029 ////////////////////////////////////////////////////////////////////
00030 //     Function: XFileFace::set_from_egg
00031 //       Access: Public
00032 //  Description: Sets the structure up from the indicated egg data.
00033 ////////////////////////////////////////////////////////////////////
00034 void XFileFace::
00035 set_from_egg(XFileMesh *mesh, EggPolygon *egg_poly) {
00036   // Walk through the polygon's vertices in reverse order, to change
00037   // from Egg's counter-clockwise convention to DX's clockwise.
00038   EggPolygon::reverse_iterator vi;
00039   for (vi = egg_poly->rbegin(); vi != egg_poly->rend(); ++vi) {
00040     EggVertex *egg_vertex = (*vi);
00041     Vertex v;
00042     v._vertex_index = mesh->add_vertex(egg_vertex, egg_poly);
00043     v._normal_index = mesh->add_normal(egg_vertex, egg_poly);
00044     _vertices.push_back(v);
00045   }
00046 
00047   _material_index = mesh->add_material(egg_poly);
00048 }
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