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 namespace simgear
  36 {
  37
  38 class ShaderGeometry : public osg::Drawable
  39 {
  40     public:
  41         ShaderGeometry()
  42         {
  43           setUseDisplayList(false);
  44         }
  45
  46         /** Copy constructor using CopyOp to manage deep vs shallow copy.*/
  47         ShaderGeometry(const ShaderGeometry& ShaderGeometry,const osg::CopyOp& copyop=osg::CopyOp::SHALLOW_COPY):
  48             osg::Drawable(ShaderGeometry,copyop) {}
  49
  50         META_Object(osg,ShaderGeometry);
  51
  52         typedef std::vector<osg::Vec4> PositionSizeList;
  53
  54         virtual void drawImplementation(osg::RenderInfo& renderInfo) const;
  55         virtual osg::BoundingBox computeBound() const;
  56
  57
  58         void setGeometry(osg::Geometry* geometry)
  59         {
  60             _geometry = geometry;
  61         }
  62
  63     void addTree(const osg::Vec3& position, float scale)
  64         {
  65             _trees.push_back(osg::Vec4(position, scale));
  66         }
  67
  68         osg::ref_ptr<osg::Geometry> _geometry;
  69
  70         PositionSizeList _trees;
  71
  72     protected:
  73
  74         virtual ~ShaderGeometry() {}
  75
  76 };
  77
  78 }
  79 #endif