Skia how-to

[sonicsmooth]

Hi, is there a summary or basic example of how to interact with skia in avalonia? I'm high-level interested to learn about:

1. creating, drawing to, manipulating bitmaps and memory off-screen
2. layers
3. how the various transforms affect everything
4. What's going on inside Render with its drawing context
   etc.

I'm under the impression that I can get access to a skia surface from the Render drawing context, and then presumably follow skia docs from there. However navigating the Avalonia.Media.DrawingContext from inside Render using debugger I don't see anything that leads to a skia object. If I create a Avalonia.Skia.DrawingContext using CreateDrawingContext separately, however, I do see some skia stuff via the debugger exploration: canvas, surface, etc.

[ahopper]

Have you seen this https://github.com/AvaloniaUI/Avalonia/blob/master/samples/RenderDemo/Pages/CustomSkiaPage.cs