On Thu, 16 Nov 2023, 2:40 am Thomas Larsen Wessel via QGIS-User, < [email protected]> wrote:
> This screen capture demonstrates much better than words: > https://imgur.com/5LSEsiY. > > Is there any way I can make it prerender the raster data as well? > > What I have already tried: > * setting almost infinite cache size > * all the relevant QGIS options/settings I could find > * both local (gpkg) and remote WMS raster data > * both Windows and Linux > * QGIS 3.22 and 3.30 > * different CRS for layer > > Some of my tests did make the rendering speed up, but no matter what it > always renders the raster data only for the canvas inside the view port, > and does not render anything outside of the view port, whereas vector data > is always rendered for an area that extends outside the view port. > There's a few parts to the logic defining whether a layer will be included in the outside-visible-extent preview: - WMS layers are **never** included. This is by design, to reduce unnecessary server load - when a layer is drawn the time taken to render it is recorded. If this time exceeds a certain threshold, then the layer is marked as too expensive to render in these optional out-of-canvas areas. (You can check the new renderer profile option available in the F12 debugging tools panel in 3.34 for more detailed information about layer render times) Nyall > Sincerely, Thomas > _______________________________________________ > QGIS-User mailing list > [email protected] > List info: https://lists.osgeo.org/mailman/listinfo/qgis-user > Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user >
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