title: Clip/Filter Raster serviced as WMS by geoserver
body: <p>I have imageMoasic raster layer in GeoServer. I process geotiffs from my API into the GeoServer instance data directly and from there I create the raster layer. I access the raster layer as WMS. My problem is this: my geotiffs cover large polygon which can be 5-6 States but on the client side, I want to clip the raster to show the specific State for the specific client. For example, If my Chicago clients log in into my application I don't want them to see other parts of the big polygon but only Chicago. What are the options in this case?</p>