<!--
osgEarth Sample

This example demonstrates a floating cloud layer. Use this together with another .earth file,
e.g.: osgviewer tiff.earth clouds.earth
-->

<map name="Clouds" type="geocentric" version="2">     
        
    <options>
        <!-- create an ellipsoid that's slightly larger than the earth -->
        <profile>
            <srs>+proj=latlong +a=6610000 +b=6600000</srs>
        </profile>
        <lighting>false</lighting>
        <terrain>
            <!-- don't want a terrain skirt on the clouds -->
            <skirt_ratio>0</skirt_ratio>
            <sample_ratio>0.5</sample_ratio>
            <compositor>multipass</compositor>
        </terrain>
    </options>
    
    <!-- the OSG driver allows us to use non-geoferenced data -->
    <image name="test" driver="osg">
        <url>../data/clouds.jpg</url>
        <profile>global-geodetic</profile>
        <luminance_to_rgba>true</luminance_to_rgba>
    </image>
         
</map>
