https://issues.qgis.org/https://issues.qgis.org/favicon.ico2018-10-14T09:10:23ZQGIS Issue TrackingQGIS Application - Feature request #20102: Pre-render canvas outside of visible areahttps://issues.qgis.org/issues/20102?journal_id=942802018-10-14T09:10:23ZSaber Razmjooeisaber.razmjooei@lutraconsulting.co.uk
<ul><li><strong>Category</strong> changed from <i>GUI</i> to <i>Map Canvas</i></li></ul> QGIS Application - Feature request #20102: Pre-render canvas outside of visible areahttps://issues.qgis.org/issues/20102?journal_id=942822018-10-14T09:13:49ZSaber Razmjooeisaber.razmjooei@lutraconsulting.co.uk
<ul><li><strong>Subject</strong> changed from <i>Prender canvas outside of visible area</i> to <i>Pre-render canvas outside of visible area</i></li></ul> QGIS Application - Feature request #20102: Pre-render canvas outside of visible areahttps://issues.qgis.org/issues/20102?journal_id=942982018-10-14T20:24:52ZGiovanni Manghigiovanni.manghi@gmail.com
<ul><li><strong>Status</strong> changed from <i>Open</i> to <i>Feedback</i></li><li><strong>Subject</strong> changed from <i>Pre-render canvas outside of visible area</i> to <i>Prender canvas outside of visible area</i></li><li><strong>Category</strong> changed from <i>Map Canvas</i> to <i>GUI</i></li></ul><p>Tried to enable multi-core rendering?</p> QGIS Application - Feature request #20102: Pre-render canvas outside of visible areahttps://issues.qgis.org/issues/20102?journal_id=943232018-10-15T07:53:35ZAlexey Txeenych@gmail.com
<ul></ul><p>Yes.<br />I have 8-core CPU. Tried to disable and to enable multi-core rendering with 2,4,8 cores. It doesn't help much</p> QGIS Application - Feature request #20102: Pre-render canvas outside of visible areahttps://issues.qgis.org/issues/20102?journal_id=943272018-10-15T07:59:32ZGiovanni Manghigiovanni.manghi@gmail.com
<ul><li><strong>Subject</strong> changed from <i>Prender canvas outside of visible area</i> to <i>Pre-render canvas outside of visible area</i></li><li><strong>Status</strong> changed from <i>Feedback</i> to <i>Open</i></li></ul> QGIS Application - Feature request #20102: Pre-render canvas outside of visible areahttps://issues.qgis.org/issues/20102?journal_id=943832018-10-17T09:40:38ZMartin Dobiaswonder.sk@gmail.com
<ul><li><strong>Status</strong> changed from <i>Open</i> to <i>Feedback</i></li></ul><p>"Prerender some buffer area outside of canvas to make scrolling smoother"</p>
<p>We already do it (turned on by default but you can check "qgis/main_canvas_preview_jobs" advanced setting in options dialog).</p>
<p>"When zooming show resampled image of current canvas and then change it to rendered image."</p>
<p>We do that as well... when you zoom with mouse wheel, it zooms the most recently rendered map in/out - afterwards it starts real map rendering.</p> QGIS Application - Feature request #20102: Pre-render canvas outside of visible areahttps://issues.qgis.org/issues/20102?journal_id=944982018-10-19T16:24:45ZAlexey Txeenych@gmail.com
<ul></ul><p>This screenshot is taken while scrolling canvas in QGis 3.2.3</p>
<p>qgis/main_canvas_preview_jobs is set to true</p>
<p>"When zooming show resampled image of current canvas and then change it to rendered image." <br />Yes it is, but without buffer area</p> QGIS Application - Feature request #20102: Pre-render canvas outside of visible areahttps://issues.qgis.org/issues/20102?journal_id=944992018-10-19T16:26:50ZAlexey Txeenych@gmail.com
<ul><li><strong>File</strong> <a href="/attachments/download/13544/test.jpg">test.jpg</a> added</li></ul>