public override void DrawInCGLContext(MonoMac.OpenGL.CGLContext glContext, CGLPixelFormat pixelFormat, double timeInterval, CVTimeStamp timeStamp)
{
GL.ClearColor(NSColor.Clear.UsingColorSpace(NSColorSpace.CalibratedRGB));
GL.Clear(ClearBufferMask.ColorBufferBit | ClearBufferMask.DepthBufferBit);
GL.Enable(EnableCap.DepthTest);
GL.Hint(HintTarget.LineSmoothHint, HintMode.Nicest);
GL.Hint(HintTarget.PolygonSmoothHint, HintMode.Nicest);
if (previousTime == 0)
{
previousTime = timeInterval;
}
rotation += 15.0 * (timeInterval - previousTime);
GL.LoadIdentity();
double comp = 1 / Math.Sqrt(3.0);
GL.Rotate(rotation, comp, comp, comp);
drawCube();
GL.Flush();
previousTime = timeInterval;
GL.Disable(EnableCap.DepthTest);
GL.Hint(HintTarget.LineSmoothHint, HintMode.DontCare);
GL.Hint(HintTarget.PolygonSmoothHint, HintMode.DontCare);
}
private void SetupDisplayLink()
{
if (displayLink != null)
{
return;
}
// Create a display link capable of being used with all active displays
displayLink = new CVDisplayLink();
// Set the renderer output callback function
displayLink.SetOutputCallback(MyDisplayLinkOutputCallback);
// Set the display link for the current renderer
CGLContext cglContext = openGLContext.CGLContext;
CGLPixelFormat cglPixelFormat = PixelFormat.CGLPixelFormat;
displayLink.SetCurrentDisplay(cglContext, cglPixelFormat);
}
public override bool CanDrawInCGLContext (CGLContext glContext, CGLPixelFormat pixelFormat, double timeInterval, ref CVTimeStamp timeStamp)
{
if (!animate)
previousTime = 0.0;
return animate;
}
public CVReturn SetCurrentDisplay (CGLContext cglContext, CGLPixelFormat cglPixelFormat)
{
return CVDisplayLinkSetCurrentCGDisplayFromOpenGLContext (this.handle, cglContext.Handle, cglPixelFormat.Handle);
}