Re: OpenGL on GTK


On 2 September 2014 10:43, Florian Pelz <pelzflorian googlemail com> wrote:

I'm a little confused about the state of OpenGL integration in GTK+. I want
to use a GTK+ 3 widget that allows me to draw using OpenGL in Vala. How do I
go about this?

it's currently in progress:

there are some details to work out, especially for synchronization and
portability, but 3.16 should have API to integrate with OpenGL.

gtkglarea seems to provide this and supports GTK+ 3 since the latest patch,
but it does not have Vala or Introspection support.

you'll have to write a vapi file, or you'll have to add introspection
support to gtkglarea.

Tarnyko mentions there also is a GTK+ 3 port of GTKGLExt being worked on.
I've read some things about Cairo OpenGL support. Is there a good way to get
an OpenGL context from Cairo?

no. Cairo-GL is mostly experimental, and it does not give you the
ability to draw with random GL calls; it's meant to be a way to draw
with Cairo calls on a GL rendering surface.


[ ] ebassi [ gmail com]

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