system example_004
{
    category                                    Examples_1_10
    technique 
    {
        visual_particle_quota                   100
        material                                ParticleUniverse/Star
        default_particle_width                  0.6
        default_particle_height                 0.6
        renderer                                Billboard
        {
        }
        emitter                                 SphereSurface 
        {
            emission_rate                       60
            time_to_live                        1.8
            velocity                            0
            direction                           0 0 0
            radius                              3
        }
        affector                                Colour 
        {
            time_colour                         0    1 1 0 1
            time_colour                         1    1 0 0 0
        }
        affector                                Gravity 
        {
            mass_affector                       0.03
            gravity                             150
        }
    }
}