<image name="nyc_inset" driver="gdal">
        <url>../data/nyc-inset-wgs84.tif</url>
        <shader>
          <![CDATA[
            #version 330
            #pragma vp_entryPoint lift
            #pragma vp_location vertex_model
            vec3 vp_Normal;
            void lift(inout vec4 vertex)
            {
                const float alt = 10000.0;
                vertex.xyz += alt * vp_Normal;
            }
          ]]>
        </shader>
    </image>