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#include "anaglyph.h"



scene::ICameraSceneNode* CreateAnaglyphCamera (scene::ISceneManager* smgr ,

                                    scene::ICameraSceneNode* pPlayerCamera)

{

   scene::ICameraSceneNode* pAnaglyphCamera;

   

   pAnaglyphCamera = smgr->addCameraSceneNode();

   pAnaglyphCamera->setInputReceiverEnabled(false); 

   pAnaglyphCamera->setScale( pPlayerCamera->getScale());

   pAnaglyphCamera->setNearValue( pPlayerCamera->getNearValue());

   pAnaglyphCamera->setFarValue( pPlayerCamera->getFarValue());

   pAnaglyphCamera->setAspectRatio( pPlayerCamera->getAspectRatio());

   

   return pAnaglyphCamera;

}



void RenderSceneAnaglyphMac (IrrlichtDevice* device, scene::ICameraSceneNode* pAnaglyphCamera  , video::IVideoDriver* driver, scene::ISceneManager* smgr, video::SColor backgroundColor,    float eyeDist,  bool endScene)

{

   scene::ICameraSceneNode* pCamera = smgr->getActiveCamera();

   

   // explicitly update attached camera animators

   pCamera->OnAnimate(device->getTimer()->getTime());

   pCamera->OnRegisterSceneNode();

   core::matrix4 startMatrix=pCamera->getAbsoluteTransformation(); 

   core:: vector3df focusPoint= 

   (pCamera->getTarget()-pCamera->getAbsolutePosition()).setLength(1) + pCamera->getAbsolutePosition() ; 

   

   //Left eye... 

   core::vector3df leftEye; 

   core::matrix4 leftMove; 

   leftMove.setTranslation( core::vector3df(-eyeDist,0.0f,0.0f) ); 

   leftEye=(startMatrix*leftMove).getTranslation(); 

   

   //Right eye... 

   core::vector3df rightEye; 

   core::matrix4 rightMove; 

   rightMove.setTranslation( core::vector3df(eyeDist,0.0f,0.0f) ); 

   rightEye=(startMatrix*rightMove).getTranslation(); 

   

   

   // enable secondary camera for anaglyph rendering 

   smgr->setActiveCamera(pAnaglyphCamera);

   

   // -------  RENDER LEFT EYE ----------

   driver->beginScene( true, true, backgroundColor ); 

   driver->getOverrideMaterial().Material.ColorMask= video::ECP_RED; 

   driver->getOverrideMaterial().EnableFlags=   video::EMF_COLOR_MASK; 

   driver->getOverrideMaterial().EnablePasses= scene::ESNRP_SKY_BOX+ scene::ESNRP_SOLID + 

   scene::ESNRP_TRANSPARENT+ scene::ESNRP_TRANSPARENT_EFFECT+ scene::ESNRP_SHADOW; 

   pAnaglyphCamera->setTarget( focusPoint ); 

   pAnaglyphCamera->setPosition( leftEye ); 

   pAnaglyphCamera->OnRegisterSceneNode();

   

   smgr->drawAll(); 

   

   // -------  RENDER RIGHT EYE ----------   

   driver->clearZBuffer(); 

   driver->getOverrideMaterial().Material.ColorMask= video::ECP_GREEN + video::ECP_BLUE; 

   driver->getOverrideMaterial().EnableFlags= video::EMF_COLOR_MASK; 

   driver->getOverrideMaterial().EnablePasses= scene::ESNRP_SKY_BOX+ scene::ESNRP_SOLID+ 

   scene::ESNRP_TRANSPARENT+ scene::ESNRP_TRANSPARENT_EFFECT+ scene::ESNRP_SHADOW; 

   pAnaglyphCamera->setTarget( focusPoint ); 

   pAnaglyphCamera->setPosition( rightEye ); 

   pAnaglyphCamera->OnRegisterSceneNode();   

  

   smgr->drawAll();

   

   driver->getOverrideMaterial().Material.ColorMask= video::ECP_ALL; 

   driver->getOverrideMaterial().EnableFlags=0; 

   driver->getOverrideMaterial().EnablePasses=0; 

   

   if (endScene) driver->endScene(); 

   

   // restore active camera 

   smgr->setActiveCamera(pCamera);

}