protected override void CreateFrameBuffer()
{
try {
ContextRenderingApi = EAGLRenderingAPI.OpenGLES3;
float screenScale = UIScreen.MainScreen.Scale;
CAEAGLLayer eaglLayer = (CAEAGLLayer)Layer;
Size size = new Size(
(int)Math.Round(screenScale * eaglLayer.Bounds.Size.Width),
(int)Math.Round(screenScale * eaglLayer.Bounds.Size.Height));
base.CreateFrameBuffer();
GL.GenRenderbuffers(1, out depthRenderbuffer);
GL.BindRenderbuffer(RenderbufferTarget.Renderbuffer, depthRenderbuffer);
GL.RenderbufferStorage(RenderbufferTarget.Renderbuffer, RenderbufferInternalFormat.DepthComponent16, size.Width, size.Height);
GL.FramebufferRenderbuffer(FramebufferTarget.Framebuffer, FramebufferSlot.DepthAttachment, RenderbufferTarget.Renderbuffer, depthRenderbuffer);
Console.WriteLine("using ES 3.0");
Console.WriteLine("version: {0} glsl version: {1}", GL.GetString(StringName.Version), GL.GetString(StringName.ShadingLanguageVersion));
} catch (Exception e) {
throw new Exception("Looks like OpenGL ES 3.0 not available", e);
}
if (ContextRenderingApi == EAGLRenderingAPI.OpenGLES2 || ContextRenderingApi == EAGLRenderingAPI.OpenGLES3)
{
keys.LoadShaders();
}
}
// This method is called everytime the context needs
// to be recreated. Use it to set any egl-specific settings
// prior to context creation
//
// In this particular case, we demonstrate how to set
// the graphics mode and fallback in case the device doesn't
// support the defaults
protected override void CreateFrameBuffer()
{
ContextRenderingApi = GLVersion.ES3;
// the default GraphicsMode that is set consists of (16, 16, 0, 0, 2, false)
try {
Log.Verbose("GLCube", "Loading with default settings");
// use multisample if possible
GraphicsMode = new AndroidGraphicsMode(new ColorFormat(32), 16, 0, 4, 2, false);
// if you don't call this, the context won't be created
base.CreateFrameBuffer();
} catch (Exception ex) {
Log.Verbose("GLCube", "{0}", ex);
// this is a graphics setting that sets everything to the lowest mode possible so
// the device returns a reliable graphics setting.
try {
Log.Verbose("GLCube", "Loading with custom Android settings (low mode)");
GraphicsMode = new AndroidGraphicsMode(0, 0, 0, 0, 0, false);
// if you don't call this, the context won't be created
base.CreateFrameBuffer();
} catch (Exception ex1) {
Log.Verbose("GLCube", "{0}", ex1);
throw new Exception("Can't load egl, aborting");
}
}
Console.WriteLine("OpenGL version: {0} GLSL version: {1}", GL.GetString(StringName.Version), GL.GetString(StringName.ShadingLanguageVersion));
keys.LoadShaders();
SetupProjection();
}
protected override void OnContextSet(EventArgs e)
{
base.OnContextSet(e);
Console.WriteLine("OpenGL version: {0} GLSL version: {1}", GL.GetString(StringName.Version), GL.GetString(StringName.ShadingLanguageVersion));
keys.LoadShaders();
keys.CreateTextTextures(CreateBitmapData);
keys.InitModel();
keys.Start();
}
