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Use osg::Geometry code to draw trees ourselves.
[simgear.git] / simgear / scene / tgdb / ShaderGeometry.hxx
1 /* -*-c++-*-
2  *
3  * Copyright (C) 2008 Stuart Buchanan
4  *
5  * This program is free software; you can redistribute it and/or
6  * modify it under the terms of the GNU General Public License as
7  * published by the Free Software Foundation; either version 2 of the
8  * License, or (at your option) any later version.
9  *
10  * This program is distributed in the hope that it will be useful, but
11  * WITHOUT ANY WARRANTY; without even the implied warranty of
12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
13  * General Public License for more details.
14  *
15  * You should have received a copy of the GNU General Public License
16  * along with this program; if not, write to the Free Software
17  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
18  * MA 02110-1301, USA.
19  *
20  */
21
22 #ifndef SHADER_GEOMETRY_HXX
23 #define SHADER_GEOMETRY_HXX 1
24
25 #include <vector>
26
27 #include <osg/BoundingBox>
28 #include <osg/CopyOp>
29 #include <osg/Drawable>
30 #include <osg/Geometry>
31 #include <osg/RenderInfo>
32 #include <osg/Vec3>
33 #include <osg/Vec4>
34
35 #include "TreeBin.hxx"
36
37 namespace simgear
38 {
39
40 class ShaderGeometry : public osg::Geometry
41 {
42     public:
43         ShaderGeometry() :
44           varieties(1)
45         { 
46         }
47
48         ShaderGeometry(int v) :
49           varieties(v)
50         { 
51         }
52         
53         /** Copy constructor using CopyOp to manage deep vs shallow copy.*/
54         ShaderGeometry(const ShaderGeometry& ShaderGeometry,const osg::CopyOp& copyop=osg::CopyOp::SHALLOW_COPY):
55             osg::Geometry(ShaderGeometry,copyop) {}
56
57         META_Object(flightgear, ShaderGeometry);
58
59         virtual void drawImplementation(osg::RenderInfo& renderInfo) const;
60         virtual osg::BoundingBox computeBound() const;
61         
62         void setGeometry(osg::Geometry* geometry)
63         {
64             _geometry = geometry;
65         }
66         
67         void addTree(const TreeBin::Tree& tree);
68
69         osg::ref_ptr<osg::Geometry> _geometry;
70
71         int varieties;
72
73     protected:
74     
75         virtual ~ShaderGeometry() {}
76         
77 };
78
79 }
80 #endif