<div dir="auto">Thank you so much for this Martin!<div dir="auto"><br></div><div dir="auto">Anita maybe we can assemble the other grant reports and put them on the blog? Happy to help with that.... </div><div dir="auto"><br></div><div dir="auto">Regards </div><div dir="auto"><br></div><div dir="auto">Tim </div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">A sexta, 17 de jan de 2020, 11:45, Martin Dobias <<a href="mailto:wonder.sk@gmail.com">wonder.sk@gmail.com</a>> escreveu:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hi all<br>
<br>
I am pleased to announce that my 2019 grant proposal "Fix problems in<br>
larger 3D scenes" has been finally implemented and merged in time for<br>
3.12 release.<br>
<br>
To summarize the work, the focus was on two issues within 3D map<br>
views. The first one was that map tiles were only being prepared using<br>
a single CPU core - this is now fixed and we may use multiple CPUs to<br>
load tiles of 3D scenes faster. The other (and greater) problem was<br>
that data from vector layers (when they have 3D renderer assigned)<br>
were all being prepared at once for the whole layer in the main<br>
thread. That resulted in possibly long freeze of the whole user<br>
interface while data were being loaded. This is now resolved as well<br>
and data from vector layers are being loaded in smaller tiles in<br>
background threads (and using multiple CPU cores). As a result, the<br>
overall user experience is now much smoother.<br>
<br>
Many thanks for supporting this proposal and also big thanks to<br>
everyone who helped with reviews, testing and provided feedback. I<br>
believe this is one of the things that take us from the point where 3D<br>
map view is just a toy that works with small scenes to the point where<br>
the 3D view may be used for serious work with larger amounts of data.<br>
<br>
Relevant pull requests:<br>
- <a href="https://github.com/qgis/QGIS/pull/32737" rel="noreferrer noreferrer" target="_blank">https://github.com/qgis/QGIS/pull/32737</a><br>
- <a href="https://github.com/qgis/QGIS/pull/33480" rel="noreferrer noreferrer" target="_blank">https://github.com/qgis/QGIS/pull/33480</a><br>
<br>
Regards<br>
Martin<br>
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