shader_set clouds_vertex
{   
    source clouds.shader
    type vertex
    profiles_cg vs_2_0 arbvp1
    profiles_hlsl vs_2_0
}

shader_set clouds_fragment
{
    source clouds.shader
    type fragment
    profiles_cg ps_2_x ps_2_0 ps arbfp1
    profiles_hlsl ps_2_0
}