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Hello everyone,
I succeeded in integrating transparent windows as well on Windows
platform than on Linux X11. The only problem remaining is that I
wanted to be able to modify the transparency color in a coherent
way with the clearColor of the main camera. Is there a way to
access the window handler during the (pre)render stage ? I don't
want to integrate some platform specific code to the render stage
code, but maybe there is a way to register a call to a method of
osgViewer::GraphicsWindow implementation ?
Once I've treated this problem I will propose it on the submission
list with a complete example for Linux and Windows.
Thanks for your help,
Christian
Le 29/07/2015 11:05, Christian Schulte a écrit :
Hello everyone,
I'm currently integrating in osgViewer the transparency an I'm
looking for some advices.
I started with the code published by Chris Hidden on the mailing
list, and modified it a little bit in order to be able to choose
between color transparency (LWA_COLORKEY), or alpha transparency
(LWA_ALPHA) or both. The probleme is that it is, for the moment,
done during the window creation. What I wanted is to be able to
adapt the LWA_COLORKEY whenever the user wants, same for
LWA_ALPHA. My questions to the community :
- Where would be the right place to make these changes (as I
need to be able to recover the window handle) ?
- Do you think that it could be interesting to be able to
switch from transparent to non transparent during execution ?
- Should the color, alpha and activation boolean be added to
the traits and be modified through GraphicsWindow class ?
- Has someone already implemented the transparency for another
OS / Windowing System, and if yes could we try to unify the
way it is done ?
Sorry for all these questions, but as it is my first
contribution try, I want to be sure to make no mistake !
Cheers,
Christian
--
SCHULTE Christian
Ingénieur Recherche
Responsable du Laboratoire de Simulation
ONERA - DCSD/PSEV
Département Commande des Systèmes et Dynamique du Vol
ONERA - Centre de Salon de Provence
BA 701
13661 SALON AIR Cedex - France
Tel :04.90.17.01.45
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--
SCHULTE Christian
Ingénieur Recherche
Responsable du Laboratoire de Simulation
ONERA - DCSD/PSEV
Département Commande des Systèmes et Dynamique du Vol
ONERA - Centre de Salon de Provence
BA 701
13661 SALON AIR Cedex - France
Tel :04.90.17.01.45
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