Re: [Qgis-user] Canvas larger than viewport is rendered/drawn for vector layers, but not for raster layers
I have tried out version 3.34 with the rendering profiler. However, I misunderstood your response and thought that it was a feature that would let me set a rendering profille, ie let me choose to have some raster layers prerendered outside the visible extent. Anyway, the profiler feature is quite cool feature, and interesting to watch :) Lets say I have a some locally stored raster data, e.g. xyz tiles or geopackage. What would it take if I wanted those to be prerendered outside the visible extent? I think my PC should be able to handle that. Would I need to dig into the C++ code and make my own build with my own preferences? Are there any articles out there that I should have a look at? I suspect I am not the first one who is looking to have raster layers prerendered :) Sincerely On Sat, Dec 16, 2023 at 2:49 PM Thomas Larsen Wessel wrote: > Thanks :) I am looking forward to testing that new feature out :) > > On Mon, Dec 11, 2023 at 10:47 AM Nyall Dawson > wrote: > >> >> >> On Thu, 16 Nov 2023, 2:40 am Thomas Larsen Wessel via QGIS-User, < >> qgis-user@lists.osgeo.org> 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 >>> QGIS-User@lists.osgeo.org >>> List info: https://lists.osgeo.org/mailman/listinfo/qgis-user >>> Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user >>> >> ___ QGIS-User mailing list QGIS-User@lists.osgeo.org List info: https://lists.osgeo.org/mailman/listinfo/qgis-user Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] Canvas larger than viewport is rendered/drawn for vector layers, but not for raster layers
Thanks :) I am looking forward to testing that new feature out :) On Mon, Dec 11, 2023 at 10:47 AM Nyall Dawson wrote: > > > On Thu, 16 Nov 2023, 2:40 am Thomas Larsen Wessel via QGIS-User, < > qgis-user@lists.osgeo.org> 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 >> QGIS-User@lists.osgeo.org >> List info: https://lists.osgeo.org/mailman/listinfo/qgis-user >> Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user >> > ___ QGIS-User mailing list QGIS-User@lists.osgeo.org List info: https://lists.osgeo.org/mailman/listinfo/qgis-user Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] Canvas larger than viewport is rendered/drawn for vector layers, but not for raster layers
On Thu, 16 Nov 2023, 2:40 am Thomas Larsen Wessel via QGIS-User, < qgis-user@lists.osgeo.org> 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 > QGIS-User@lists.osgeo.org > List info: https://lists.osgeo.org/mailman/listinfo/qgis-user > Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user > ___ QGIS-User mailing list QGIS-User@lists.osgeo.org List info: https://lists.osgeo.org/mailman/listinfo/qgis-user Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] Canvas larger than viewport is rendered/drawn for vector layers, but not for raster layers
Anyone? :) So if I had to guess: Prerendering raster outside the viewport is disabled because for any remote raster source (most are remote) it would overall require QGIS to download much more raster data than otherwise. For users with low bandwidth prerendering/predownloading raster outside the viewport would end up feeling even more sluggish than what I am experiencing. Could that be the reason? On Wed, Nov 15, 2023 at 5:40 PM Thomas Larsen Wessel 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. > > Sincerely, Thomas > ___ QGIS-User mailing list QGIS-User@lists.osgeo.org List info: https://lists.osgeo.org/mailman/listinfo/qgis-user Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
[Qgis-user] Canvas larger than viewport is rendered/drawn for vector layers, but not for raster layers
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. Sincerely, Thomas ___ QGIS-User mailing list QGIS-User@lists.osgeo.org List info: https://lists.osgeo.org/mailman/listinfo/qgis-user Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
