Hi Vincent On Fri, Jan 5, 2018 at 4:39 PM, Vincent Habchi <vi...@macports.org> wrote: > > When I display a 3D view on OS X / Qt 5.10 with a reasonably recent MacBook > Pro 13" (i5-5257U CPU - integrated graphics), even when I don’t interact with > the view, the fan ramps up and top reports a CPU usage around 50% for QGis. > Other applications slow down perceptibly. > > In my experiment, I use a 25x25 m DEM as terrain model and display around > 40,000 3D vector features (extruded buildings models). > > Is this CPU load expected? Do you get a similar phenomenon on your own > hardware?
Yes it is a known issue: https://issues.qgis.org/issues/17493 Cheers Martin _______________________________________________ QGIS-Developer mailing list QGIS-Developer@lists.osgeo.org List info: https://lists.osgeo.org/mailman/listinfo/qgis-developer Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-developer