[osg-users] Migration from OSG 3.1.5 to 3.4.0 / Qt 4 to Qt 5

Robert Osfield robert.osfield at gmail.com
Tue Dec 15 01:16:42 PST 2015

On 15 December 2015 at 07:47, Emmanuel Pot <emmanuel.pot at bentley.com> wrote:

> I got an email from the osg users mailing list, but I cannot answer to it
> :-(.
> I was told that the osgviewerqt was working fine on someone else machine.
> On my side, I get a black background when pressing s, whereas it was
> transparent before. I have no idea what to do :-(.

Sorry to hear Qt/OSG experience has been a bit rough.  Qt has been a bit of
moving target and generally awkward to work with as it does some odd things
with event handling, threading and state.  The exact interaction of all of
this has changed over time with newer versions of Qt breaking how things
used to work, and then fixes to get things working again break how it works
with older versions.

Personally I am not a Qt user so don't have the expertise for tracking
these changes and recommending fixes, it is possible to get it working as
there are plenty of OSG/Qt users out there.  I'm guessing there are mostly
just getting on with their work and haven't spotted your request for
assistance, or perhaps they don't know enough about the specifics of the
combination of OSG/Qt you are using to comment.

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