Problem 1494 - Antialiasing in Qt/OpenGL makes objects invisible
Summary: Antialiasing in Qt/OpenGL makes objects invisible
Status: RESOLVED INVALID
Alias: None
Product: Geant4
Classification: Unclassified
Component: visualization (show other problems)
Version: 9.6
Hardware: Apple Mac OS X
: P5 trivial
Assignee: garnier
URL:
: 1496 (view as problem list)
Depends on:
Blocks:
 
Reported: 2013-07-16 18:35 CEST by Mojca Miklavec
Modified: 2014-07-02 23:50 CEST (History)
0 users

See Also:

Attachments
Solids disappear when antialiasing is switched on (124.47 KB, image/png)
2013-07-16 18:35 CEST, Mojca Miklavec 		Details
With antialiasing off, everything is displayed properly (112.93 KB, image/png)
2013-07-16 18:36 CEST, Mojca Miklavec 		Details
Axes missing in stored PNG (from Gate) (15.80 KB, image/png)
2013-07-16 18:37 CEST, Mojca Miklavec 		Details
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Description Mojca Miklavec 2013-07-16 18:35:06 CEST 
Created attachment 229 [details]
Solids disappear when antialiasing is switched on

If I turn antialiasing on (Qt with OpenGL on Mac OS X), a lot of objects disappear, mostly solid ones (wireframes usually stay). The objects are visible in the stored PNG though. (On the contrary, in Gate the axes are visible, but they disappear in the stored PNG.)

I'm attaching screenshots from example B1, but I experience the same problems in others.

There are other problems/examples of weird behaviour. For example, if I switch antialiasing on and then off, then save the image, the antialias is turned on again without my explicit request.

Independent of antialiasing setting, the objects (solids) in PNG don't seem to be antialiased at all.
Comment 1 Mojca Miklavec 2013-07-16 18:36:17 CEST 
Created attachment 230 [details]
With antialiasing off, everything is displayed properly
Comment 2 Mojca Miklavec 2013-07-16 18:37:32 CEST 
Created attachment 231 [details]
Axes missing in stored PNG (from Gate)
Comment 3 Mojca Miklavec 2013-07-17 05:10:43 CEST 
*** Problem 1496 has been marked as a duplicate of this problem. ***
Comment 4 garnier 2014-07-02 23:50:19 CEST 
Unable to reproduce that bug. 
Mark as invalid for the moment