//Save photon data in photon map
 void savePhotonHitData(int type, int id, float[] location, float[] direction, float[] energy)
 {
     photonMap.setPhotonData(type, id, photonMap.photonsPerObject [type] [id], 0, location);
     photonMap.setPhotonData(type, id, photonMap.photonsPerObject [type] [id], 1, direction);
     photonMap.setPhotonData(type, id, photonMap.photonsPerObject [type] [id], 2, energy);
     photonMap.photonsPerObject [type] [id]++;
 }