Image processing

Stride UI Example
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using Stride.CommunityToolkit.Engine;
using Stride.CommunityToolkit.Extensions;
using Stride.CommunityToolkit.Rendering.Utilities;
using Stride.Core.Mathematics;
using Stride.Engine;
using Stride.Graphics;
using Stride.Rendering.Images;
using Stride.Rendering.Sprites;
using Stride.UI;
using Stride.UI.Controls;
using Stride.UI.Panels;
using System.Reflection;

using var game = new Game();

// The window size a Game Studio project would take from its GameSettings asset, written in code
// instead. This runs before the device exists; game.Window.SetSize(...) inside Start would resize
// an already-created window, which also works but shows a flash at the default size first.
game.UseGameSettings(settings =>
{
    var rendering = settings.GetOrCreateConfiguration<RenderingSettings>();
    rendering.DefaultBackBufferWidth = 1000;
    rendering.DefaultBackBufferHeight = 1080;
});

game.Run(start: Start);

void Start(Scene rootScene)
{
    game.SetupBase3D();

    var directory = Path.GetDirectoryName(Assembly.GetEntryAssembly()!.Location)!;
    var filePath = Path.Combine(directory, "input.png");
    using var input = File.Open(filePath, FileMode.Open);
    var texture = Texture.Load(game.GraphicsDevice, input);

    var grid = new UniformGrid
    {
        Width = 1000,
        Height = 1000,
        Columns = 9,
        Rows = 9,
        Margin = new Thickness(8, 8, 8, 8)
    };

    grid.Children.Add(CreateCard(texture));

    for (var a = 0; a < 9; a++)
    {
        var anchor = (Anchor)a;
        for (var s = 0; s < 4; s++)
        {
            var stretch = (Stretch)s;

            using (var canvas = game.CreateTextureCanvas(new Size2(1024, 1024)))
            {
                canvas.DrawTexture(texture, new Rectangle(0, 128, 256, 256), new Rectangle(128, 256, 768, 512), null, stretch, anchor, SamplingPattern.Expanded);
                var card = CreateCard(canvas.ToTexture());
                card.SetGridColumn(a);
                card.SetGridRow(s * 2 + 1);
                grid.Children.Add(card);
            }

            using (var canvas = game.CreateTextureCanvas(new Size2(1024, 1024)))
            {

                canvas.DrawTexture(texture, new Rectangle(0, 128, 256, 256), new Rectangle(256, 128, 512, 768), null, stretch, anchor);
                var card = CreateCard(canvas.ToTexture());
                card.SetGridColumn(a);
                card.SetGridRow(s * 2 + 2);
                grid.Children.Add(card);
            }
        }
    }

    var entity = new Entity { Scene = rootScene };
    entity.Add(new UIComponent { Page = new UIPage { RootElement = grid } });
}

static Border CreateCard(Texture texture)
{
    var card = new Border
    {
        BorderColor = new Color(25, 25, 25),
        BackgroundColor = new Color(120, 120, 120),
        BorderThickness = new Thickness(2, 2, 2, 2),
        Padding = new Thickness(8, 8, 8, 8),
        Margin = new Thickness(4, 4, 4, 4),
        Content = new StackPanel
        {
            Orientation = Orientation.Vertical,
            Children =
            {
                new ImageElement
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Image processing
