"Wolfgang Draxinger" <wdraxinger@[EMAIL PROTECTED]
> schreef in bericht
news:k3aih5-alc.ln1@[EMAIL PROTECTED]
Lau wrote:
> I'm investigating the use of OpenGL on Linux and 2 screens. But
> I'm wondering if it's possible to use OpenGL on multiple
> screens and if so how?
>
> For instance glLoadIdentity() sets the current matrix to the
> identity matrix, but when you have 2 screens you have to
> specify which screen´s matrix which you cant. So is it possible
> to control 2 screens in 1 OpenGL application?
> Either do a windows spaning over both screens and set an
> apropriate view****t with glView****t / glScissor, or create two
> windows, each with it's own rendering context. Then you
>can "select" the screen, by making the desired context current.
>You can share objects (i.e. Display Lists, Textures, stuff like
>that) between contexts, by supplying the context you want to
>share with as the "shareLists" parameter of glXCreateContext.
ah I see thank you
so the render function would look like this in pseudo:
select_context(screen1)
draw_scene1()
select_context(screen2)
draw_scene2()
the screen are unrelated, different things will be rendered not one scene
over 2 screens
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