stk-code/data/shaders/sps_11_verticalMapping.xml

<spshader>
    <shader-info name="verticalMapping" fallback-shader="solid" use-tangents="Y"/>
    <first-pass vertex-shader="sp_pass.vert"
        fragment-shader="sp_vertical_mapping.frag">
    </first-pass>
    <shadow-pass vertex-shader="sp_shadow.vert"
        fragment-shader="white.frag">
    </shadow-pass>
    <uniform-assigners>
        <uniform-assigner name="layer"
        function="shadowCascadeUniformAssigner"/>
    </uniform-assigners>
</spshader>