Hi everybody i have a problem with raster, i have a dem that mapnik
draw only white/black but if try to see it with qgis or grass i can
see the real color table, there is a bug?

i use

<Layer name="dem" status="on">
        <StyleName>raster</StyleName>
        <Datasource>
                <Parameter name="type">gdal</Parameter>
                <Parameter name="file">/path/to/my/raster.tif</Parameter>
                <Parameter name="format">tiff</Parameter>
        </Datasource>
</Layer>

<Style name="raster">
    <Rule>
        <RasterSymbolizer>
            <CssParameter name="opacity">0.8</CssParameter>
            <CssParameter name="scaling">bilinear</CssParameter>
            <CssParameter name="mode">multiply2</CssParameter>
        </RasterSymbolizer>
    </Rule>
</Style>

thank's
Luca
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