for(int imap=0; imap<dim1; imap++)
    for(int jmap=0; jmap<dim2; jmap++)
    {

        int dist=(int)sqrt( pow(camera->getAbsolutePosition().X-(imap*20000+10000),2) + 
                            pow(camera->getAbsolutePosition().Z-(jmap*20000+10000),2));    
        scene::ITriangleSelector* selector[imap][jmap]; 
        if(dist<20000)
        {
                      
            if( bterrain[imap][jmap]==false )
            {
                
                std::string path,tmp;
                path+=itostr(imap);
                path+="-";
                path+=itostr(jmap);
                tmp="Maps/"+path+"/heightmap.bmp";

                terrain[imap][jmap] = smgr2->addTerrainSceneNode( 
                (c8*)tmp.c_str(),
                0,                                        // parent node
                -1,                                        // node id
                core::vector3df((imap*19000.f), 1800.f, (jmap*19000.f)),            // position
                core::vector3df(0.f, 0.f, 0.f),            // rotation
                core::vector3df(80,30,80),        // scale
                video::SColor ( 255, 255, 255, 255 ),    // vertexColor,
                100,                                        // maxLOD
                scene::ETPS_17//,                            // patchSize
                //10                                        // smoothFactor
                );
                terrain[imap][jmap]->setMaterialFlag(video::EMF_LIGHTING  ,false);
                    tmp="Maps/"+path+"/top.png";
                
                terrain[imap][jmap]->setMaterialTexture(0, driver2->getTexture((c8*)tmp.c_str()));
                terrain[imap][jmap]->setMaterialTexture(1, driver2->getTexture("Maps/02.png"));
                terrain[imap][jmap]->setMaterialType(video::EMT_LIGHTMAP );

                
                terrain[imap][jmap]->scaleTexture(1.0f, 100.0f);
               
                terrain[imap][jmap]->setMaterialFlag(video::EMF_FOG_ENABLE, false);
                // create triangle selector for the terrain    
                selector[imap][jmap] = smgr2->createTerrainTriangleSelector(terrain[imap][jmap], 0);
                 printf("Selector : %i \n",int(selector[imap][jmap]));   
                terrain[imap][jmap]->setTriangleSelector(selector[imap][jmap]);
               // selector[imap][jmap]->drop();
                metaSelector->addTriangleSelector(selector[imap][jmap]); // J'ajoute au meta selector mon selector de terrain chargé

               
           animSaut = new scene::CSceneNodeAnimatorJumpingCollisionResponse(smgr2,metaSelector, camera,  
               core::vector3df(40,75,40), core::vector3df(0,0,0), core::vector3df(0,50,0),0.00005f/*, time */);
               camera->addAnimator(animSaut);
               animSaut->drop();
               terrain[imap][jmap]->setVisible(true);
               bterrain[imap][jmap]=true;
               

            }
        }
        else // Si la distance est a plus de 20.000
        {
        if( bterrain[imap][jmap]==true ) // Si le terrain est chargé
        {
            
                  
            terrain[imap][jmap]->remove(); // Remove le terrain
            terrain[imap][jmap] = 0; // Pour bien "vidé" la chose
            //terrain[i][j]->drop(); Ca buggai la car impossible a drop
            
            metaSelector->removeTriangleSelector(selector[imap][jmap]); // Je supprime le selector du terrain effacé

            selector[imap][jmap]->drop();
            bterrain[imap][jmap]=false;
        }
        }
    }
        
    }