[Qgis-user] Hillshade as layer property vs. Processing Toolbox GDAL hillshade

[Nicolas Cadieux]

Hi,

So the problem occurs only when creating a Hillshade, from a DEM, using the hillshade symbology?  Have you chosen the correct a factor value?  Try to use the same projection in the project and in the layer so that you have no reprojection going on.

Nicolas Cadieux
Ça va bien aller!

> Le 13 mai 2020 à 04:31, Priv.-Doz. Dr. Maria Shinoto <maria.shinoto at zaw.uni-heidelberg.de> a écrit :
> 
>  Hi, 
> 
> Today I tried making a hillshade from the raster data you helped me out today -- after filling empty pixels, everything looks great. 
> 
> Now, when trying to set the layer symbology to hillshade, I got artifacts with the default setting and the recommend bilinear with medium. Looking for a solution, I found this conservation about the same issue (I think) from about 3 years ago; it seems to be a problem still today (working with QGIS 3.12).
> 
>        https://github.com/qgis/QGIS/issues/23859
> 
> So I tried the hillshade tool from GDAL in the Processing toolbox with identical setting, and everything looks great. 
> 
> I think that the flawed hillshade in the easily accessible Symbology dialogue needs some work or a hint to the GDAL tool in the Processing toolbox. It is frustrating for someone who is new.
> 
> I add screenshots from the bad results in the Properties > Symbology dialogue and the raster image from which I started. 
> 
> Anyway, it was great to have a solution easily at hand ;-)
> 
> Best,
> Maria
> 
> 
> <Bildschirmfoto 2020-05-13 um 13.58.59.jpeg>
> 
> <Bildschirmfoto 2020-05-13 um 14.08.53.jpeg>
> 
> <Bildschirmfoto 2020-05-13 um 13.59.30.jpeg>
> 
> 
> 
> 
> 
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