material Skybox { technique { pass { lighting off depth_write off texture_unit { texture early_morning.jpg cubic tex_address_mode clamp } } } } material Skybox/Dynamic { technique { pass { lighting off depth_write off ambient 1.0 1.0 1.0 1.0 diffuse 0.0 0.0 1.0 1.0 specular 0.0 0.0 0.0 1.0 vertex_program_ref debug_vp { } fragment_program_ref debug_fp { } } } }