Qt, maybe? Has tight OpenGL support, and can even draw resizable widgets into the same layer as OpenGL.

Quote:Original post by superoptimo
CEGUI is the most mature and feature-complete GUI library for OpenGL games

[citation needed]

Quote:Original post by phresnel

Quote:Original post by superoptimo
CEGUI is the most mature and feature-complete GUI library for OpenGL games

[citation needed]

[me and really anyone else who's ever used an in-game GUI library]

Quote:Original post by nullsquared

Quote:Original post by phresnel

Quote:Original post by superoptimo
CEGUI is the most mature and feature-complete GUI library for OpenGL games

[citation needed]

[me and really anyone else who's ever used an in-game GUI library]

[Incomplete and unclosed theorem from your side: Only because you have used CEGUI, it doesn't mean you know about every other widget toolkit. You can only know if you have evaluated multiple or all of the other toolkits, or if you've found a serious comparison or some articles in which you believe.

But neither did you state you have tested more than CEGUI only, nor did you cite serious resources.]

Quote:Original Post by superoptimo
Do you know a better alternative to CEGUI?

I don't but Qt, where you can pipe every widget (including webkit components, e.g.) into a QGraphicsView, which can happen to be an OpenGL view. Admittedly, stretching, if needed, can be ugly, plus I am not sure how accelerated, if any, those widgets are. But if you need a full GUI inside an OpenGL screen, I can only recommend it, I can only guess that Qt supports way more and flexible widgets than CEGUI does. One big feature is the support of cascading style sheets for widgets, which make the whole thing extremely (runtime-)customizable.

Finally: It generally smells if someone claims that some entity X is the best or most mature or (insert superlative of your choice) thing on earth. Imho (and in the opinion of many others), such claims need citations, e.g. a link to a serious comparison.

[Edited by - phresnel on August 24, 2009 3:48:15 AM]

Quote:Original post by phresnel
[Incomplete and unclosed theorem from your side: Only because you have used CEGUI, it doesn't mean you know about every other widget toolkit. You can only know if you have evaluated multiple or all of the other toolkits, or if you've found a serious comparison or some articles in which you believe.

But neither did you state you have tested more than CEGUI only, nor did you cite serious resources.]

I've tested CEGUI, Qt, native win32 controls, as well as Ogre specific GUI's BetaGUI, QuickGUI, MyGUI, and Ogre's own overlay system. I ended up writing my own GUI as none of the above were implemented as per-se my application design required. Considering I'm the last person who would write his own solution when many others exist, I can assure that I've evaluated most of the competition. Feature and maturity wise, as per superoptimo's post, CEGUI wins hands down for an in-game GUI. Qt can indeed render directly to an OpenGL window, but the benefits are questionable and one cannot render the Qt widgets to an OpenGL texture for other than on-screen use (unlike CEGUI).

Quote:
But tell me more about Qt, does it support rendering widgets to an offscreen texture? does it use the Framebuffer Object extension?

See above: no, it's not possible - by default. If you'd like to write your own painting device for Qt (which is a pain), then it would be possible. However considering I chose writing my own GUI over writing a custom Qt painting engine, I can assure it's not a fun process.