SO3LightShaft.h

Go to the documentation of this file.

/*
-----------------------------------------------------------------------------
This source file is part of OpenSpace3D
For the latest info, see http://www.openspace3d.com
 
Copyright (c) 2012 I-maginer
 
This program is free software; you can redistribute it and/or modify it under
the terms of the GNU Lesser General Public License as published by the Free Software
Foundation; either version 2 of the License, or (at your option) any later
version.
 
This program is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
 
You should have received a copy of the GNU Lesser General Public License along with
this program; if not, write to the Free Software Foundation, Inc., 59 Temple
Place - Suite 330, Boston, MA 02111-1307, USA, or go to
http://www.gnu.org/copyleft/lesser.txt
 
-----------------------------------------------------------------------------
*/
 
#ifndef __SO3LIGHTSHAFT_H__
#define __SO3LIGHTSHAFT_H__
 
#include "SCOLBasic/SO3Prerequisites.h"
#include "SO3SceneGraph/SO3NodeScol.h"
 
namespace SO3
{
 
class SLightShaft : public Ogre::RenderTargetListener, public Ogre::MaterialManager::Listener
{
public:
protected:
        SScene* currentScene;
  Ogre::SceneManager* mSceneMgr;
 
private:
  std::queue<std::string> mMaterials;
  Ogre::Camera* mLightCamera;
  SNode* mParent;
  float mMinStep;
  Ogre::BillboardSet* mBillboardSet;
  Ogre::MaterialPtr mShaftMaterial;
  Ogre::MaterialPtr mDepthMaterial;
  Ogre::TexturePtr mDepthTexture;
  bool mNeedUpdate;
public:
  SLightShaft(SNode* parent, float minStep = 0.2f, float nearClip = 1.0f, float farClip = 50.0f, Ogre::Radian fov = Ogre::Degree(17.5f));
 
  ~SLightShaft();
 
  void SetMinStep(const float minStep);
  void SetCookieTexture(std::string path);
  void SetLightClipping(float nearClip, float farClip);
  void SetAttenuation(Ogre::Vector4 attenuation);
  void SetLightFov(Ogre::Radian fov);
  void SetColor(Ogre::ColourValue col);
  void Update();
 
  virtual Ogre::Technique* handleSchemeNotFound(unsigned short schemeIndex, const Ogre::String& schemeName, Ogre::Material* originalMaterial, unsigned short lodIndex, const Ogre::Renderable* rend);
 
protected:
private:
  SLightShaft();
 
        void preRenderTargetUpdate(const Ogre::RenderTargetEvent& evt);
        void postRenderTargetUpdate(const Ogre::RenderTargetEvent& evt);
 
  void UpdatePosition();
  void UpdateTextureProjectionMatrix();
  void CreateLightShafts();
  void CreateLightCameraRTT();
};
 
}
 
#endif