Effecectivement il manquai qq parametre :p Merci

code final pour les interesse :

irr::scene::IParticleAnimatedMeshSceneNodeEmitter* emitter =
    particleSystem->createAnimatedMeshSceneNodeEmitter(ninja,                                                                                    
                                                       true,
                                                       irr::core::vector3df(0.0f,0.05f,0.0f),                   
                                                       100.0f,
                                                       -1,
                                                       false,
                                                       80,
                                                       100,                                               
                                                       irr::video::SColor(0,255,255,255),                   
                                                       irr::video::SColor(0,255,255,255),                   
                                                       600, 1200,                                                       
                                                       0,                                                 
                                                       irr::core::dimension2df(8.0f,8.0f),                            
                                                       irr::core::dimension2df(14.0f,14.0f));