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OpenScad 2014.03 - Segmentation Fault

S
Spindoctor
Mon, Nov 30, 2015 9:33 PM

Hi again!

Ok, I tried both.

First I tried render(convexity=3) at the first argument of my differences. I
opened the file with OpenSCAD 2015.03 (the stable version) and I can confirm
that this had an impact on the preview speed. Everything was a bit faster,
but still too slow to reasonably work with it.

In the mean time the Qt4 version was finished with compiling. I opened the
same file (still with render(convexity=3)) and I have to say this was a
big difference. The preview speed is still not "snappy" - it's more like
an old stop-motion film, but I would say I could live with that speed.

To also test the final combination, I removed render(convexity=3) again and
opened it with both versions again. Still the Qt4 version is much faster but
still too slow to work with it.

When I drag the model around it looks like the Qt5-version tries to display
all steps to the final position. This sometimes takes several minutes.

The Qt4 version instead just displays the first and the last position - no
(or just few) steps in between. This makes the Qt4 version much faster.

What do you think? This issue doesn't really "feel" resolved. Still I maybe
found a way I can continue my work on the model.

Thanks,

Marcel

--
View this message in context: http://forum.openscad.org/OpenScad-2014-03-Segmentation-Fault-tp14800p14843.html
Sent from the OpenSCAD mailing list archive at Nabble.com.

Hi again! Ok, I tried both. First I tried render(convexity=3) at the first argument of my differences. I opened the file with OpenSCAD 2015.03 (the stable version) and I can confirm that this had an impact on the preview speed. Everything was a bit faster, but still too slow to reasonably work with it. In the mean time the Qt4 version was finished with compiling. I opened the same file (still with render(convexity=3)) and I have to say this was a *big* difference. The preview speed is still not "snappy" - it's more like an old stop-motion film, but I would say I could live with that speed. To also test the final combination, I removed render(convexity=3) again and opened it with both versions again. Still the Qt4 version is much faster but still too slow to work with it. When I drag the model around it looks like the Qt5-version tries to display all steps to the final position. This sometimes takes several minutes. The Qt4 version instead just displays the first and the last position - no (or just few) steps in between. This makes the Qt4 version much faster. What do you think? This issue doesn't really "feel" resolved. Still I maybe found a way I can continue my work on the model. Thanks, Marcel -- View this message in context: http://forum.openscad.org/OpenScad-2014-03-Segmentation-Fault-tp14800p14843.html Sent from the OpenSCAD mailing list archive at Nabble.com.
MK
Marius Kintel
Tue, Dec 1, 2015 3:32 AM

When I drag the model around it looks like the Qt5-version tries to display
all steps to the final position. This sometimes takes several minutes.

This is the Qt5 problem that’s been discussed in various places. We haven’t really tracked down the cause of that one yet. The Qt4 behaviour is the correct one.

-Marius

> > When I drag the model around it looks like the Qt5-version tries to display > all steps to the final position. This sometimes takes several minutes. > This is the Qt5 problem that’s been discussed in various places. We haven’t really tracked down the cause of that one yet. The Qt4 behaviour is the correct one. -Marius
S
Spindoctor
Tue, Dec 1, 2015 6:01 PM

I see!

In this case, I hope you can fix it soon. Until then I guess I need to
compile against Qt4 myself, right?

By the way, kintel, I think I might know you from Metalab :)

Thank you all for your help!

Marcel

--
View this message in context: http://forum.openscad.org/OpenScad-2014-03-Segmentation-Fault-tp14800p14878.html
Sent from the OpenSCAD mailing list archive at Nabble.com.

I see! In this case, I hope you can fix it soon. Until then I guess I need to compile against Qt4 myself, right? By the way, kintel, I think I might know you from Metalab :) Thank you all for your help! Marcel -- View this message in context: http://forum.openscad.org/OpenScad-2014-03-Segmentation-Fault-tp14800p14878.html Sent from the OpenSCAD mailing list archive at Nabble.com.
MK
Marius Kintel
Tue, Dec 1, 2015 6:40 PM

On Dec 1, 2015, at 13:01 PM, Spindoctor spindoc@roundtray.yeara.net wrote:

By the way, kintel, I think I might know you from Metalab :)

Very probable :)

-Marius

On Dec 1, 2015, at 13:01 PM, Spindoctor <spindoc@roundtray.yeara.net> wrote: > By the way, kintel, I think I might know you from Metalab :) > Very probable :) -Marius