declare shader
    color "ward" (
        color  "ambient"       default 0 0 0,
        color  "diffuse"       default 1 1 1,
	color  "glossy"        default 0 0 0,
	scalar "shiny_u_coeff" default 10,
	scalar "shiny_v_coeff" default 10,
        array light "lights"
    )
    version 1
    apply material
end declare