Cloud2D.h

#pragma once
#include "Scene.h"
#include <osg/Geometry>
#include <osg/Geode>
#include <osg/Texture2D>
#include <osg/Image>
#include <osgUtil/SmoothingVisitor>
#include <osgUtil/TangentSpaceGenerator>
#include <osg/BlendFunc>
#include <osgDB/ReadFile>

#define PI 3.14159265

namespace osgCloudyDay
{
        class Cloud2D
        {
        public:
                Cloud2D();
                ~Cloud2D();

                void Cloud2D::SetGeometry();
                void Cloud2D::SetGeometry(osg::Vec3 position, osg::Vec2 size);

                void Cloud2D::Create(osg::Geode* geode, osg::Image* perlinImg);
                void Create(osg::Geode* geode, osg::Image* perlinImg, osg::Image* perlinNormalImg);     
                void Create(osg::Geode* geode, osg::Image* perlinImg, osg::Image* perlinNormalImg, osg::Image* perlinHeightImg);

                osg::Image* CreateNormalMap(osg::Image* img);

                virtual void SetupGeometry(osg::Vec3 position, osg::Vec2 size, osg::Vec3Array* vertices, osg::Vec2Array* tcoords, osg::UIntArray* indices) = 0;

        public:
                osg::Geometry* geom;
                osg::Geode* geode;

                osg::Node* terrain_obj;
                bool m_tesselation;

        protected:
                osg::Vec3Array* coords;         
                osg::Vec2Array* tcoords;
                osg::UIntArray* indices;                
        };
}