// declare the vertex shader (CG for the language)
vertex_program shadow_caster_vs cg
{
    // source file
    source shadow_caster.cg
    // will run on vertex shader 1.1+
    profiles vs_1_1 arbvp1
    // entry function
    entry_point shadow_caster_vs

    default_params
    {
        // pMat == projection matrix
        param_named_auto pMat projection_matrix
        // wvMat == world * view matrix
        param_named_auto wvMat worldview_matrix
    }
}

// declare the fragment shader (CG for the language)
fragment_program shadow_caster_ps cg
{
    // source file
    source shadow_caster.cg
    // will run on pixel shader 2.0 and up
    profiles ps_2_0 arbfp1
    // entry function
    entry_point shadow_caster_ps

    default_params
    {
        // light's range == camera far clip
        param_named_auto far far_clip_distance
    }
}