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Bindings - other languages => DotNet => Topic started by: Chris12 on November 11, 2012, 11:50:42 pm

Title: OpenTK and SFML
Post by: Chris12 on November 11, 2012, 11:50:42 pm

Hi there. Got SFML working with OpenTK.
I understand that me messing with the openGL context will disturb SFML in its functionality.
Thats why one should use PushGLStates / PopGLStates.
I read the tutorial and the documentation, but somehow it's still not 100% clear to me.

I have a few questions.

1.) Should I enclose my code with Push/PopGlStates, or should I enclode the SFML drawing code with it?
Is there even a difference?

2.) When should ResetGlStates be used? Can it replace the above functions?

3.) Is this the correct way to make openTK aware of SFML: ?

static void Main(string[] args)
                {
                        RenderWindow = new RenderWindow(new SFML.Window.VideoMode(800, 450), "Title", SFML.Window.Styles.Close);

                        var wi = OpenTK.Platform.Utilities.CreateWindowsWindowInfo(RenderWindow.SystemHandle);
                        var ctx = new OpenTK.Graphics.GraphicsContext(OpenTK.Graphics.GraphicsMode.Default, wi);
                        ctx.MakeCurrent(wi);
                        ctx.LoadAll();

                        ...
                }
 

Isn't there a way to get the GlContext from the "RenderWindow" class directly??

Title: Re: OpenTK and SFML
Post by: eigenbom on November 12, 2012, 05:52:42 am

1. I would keep SFML's state as the default, which means surrounding your Tk graphics calls with a push/pop.
2. Never used it, but as you should always push/pop you'll probably never need it

Title: Re: OpenTK and SFML
Post by: Laurent on November 12, 2012, 08:07:07 am

Quote

1.) Should I enclose my code with Push/PopGlStates, or should I enclode the SFML drawing code with it?
Is there even a difference?

2.) When should ResetGlStates be used? Can it replace the above functions?

Everything is explained in the API documentation. If SFML.Net's doc is not up-to-date/complete, look at SFML's doc.

Quote

Isn't there a way to get the GlContext from the "RenderWindow" class directly??

No. But in C++ (with WGL/GLX/AGL) there's a function to get the current context. I don't know if you can access this kind of function in .Net, and if you can make something useful of the returned low-level context.