CODEWITHSUNDEEP
openglbackgroundtransparentxlibglx
Adam Cigánek
Adam Cigánek

Reputation: 23

How to create OpenGL-enabled window with transparent background using xlib and glx

I'd like to create a window with transparent background and then render something onto it using OpenGL. I don't want to use the trick where whatever is behind the window is captured and then painted as a background - I want real transparency (I have composition manager running). I'm not using any GUI library (GTK, QT, ...), just raw xlib and glx.

Anyone knows how to do it?

Upvotes: 2

Views: 1571

Answers (1)

genpfault
genpfault

Reputation: 52084

Take a look at these patches to Neverball and SDL. They seem to be based on NVidia's driver documentation.

I haven't tried it, but it looks as if you just select the correct GLX config (GLX_RGBA_BIT), clear your window appropriately, and have a compositor running, it should Just Work™.

Upvotes: 1

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