Сглаживание 3D: MSAA, FXAA, SMAA и TAA

using Reckfell;

public static class QualityPreset
{
    public enum Mode { Native, Msaa4, Fxaa, Smaa, Taa, HalfBilinear, HalfNearest, DoubleBilinear, FsrHalf, Fsr2Half }

    public static bool Apply(Viewport viewport, Mode mode)
    {
        if (!System.Enum.IsDefined(mode)) return false;
        string renderer = RenderingServer.GetCurrentRenderingMethod();
        bool forward = renderer == "forward_plus";
        if ((mode == Mode.Fxaa || mode == Mode.Smaa) && renderer == "gl_compatibility") return false;
        if ((mode == Mode.Taa || mode == Mode.FsrHalf || mode == Mode.Fsr2Half) && !forward) return false;
        viewport.Msaa3D = Viewport.Msaa.Disabled;
        viewport.ScreenSpaceAA = Viewport.ScreenSpaceAAEnum.Disabled;
        if (forward) viewport.UseTaa = false;
        viewport.Scaling3DMode = Viewport.Scaling3DModeEnum.Bilinear;
        viewport.Scaling3DScale = 1;
        switch (mode)
        {
            case Mode.Msaa4: viewport.Msaa3D = Viewport.Msaa.Msaa4X; break;
            case Mode.Fxaa: viewport.ScreenSpaceAA = Viewport.ScreenSpaceAAEnum.Fxaa; break;
            case Mode.Smaa: viewport.ScreenSpaceAA = Viewport.ScreenSpaceAAEnum.Smaa; break;
            case Mode.Taa: viewport.UseTaa = true; break;
            case Mode.HalfBilinear: viewport.Scaling3DScale = 0.5f; break;
            case Mode.HalfNearest:
                viewport.Scaling3DMode = Viewport.Scaling3DModeEnum.Nearest;
                viewport.Scaling3DScale = 0.5f;
                break;
            case Mode.DoubleBilinear: viewport.Scaling3DScale = 2; break;
            case Mode.FsrHalf:
                viewport.Scaling3DMode = Viewport.Scaling3DModeEnum.Fsr;
                viewport.Scaling3DScale = 0.5f;
                break;
            case Mode.Fsr2Half:
                viewport.Scaling3DMode = Viewport.Scaling3DModeEnum.Fsr2;
                viewport.Scaling3DScale = 0.5f;
                break;
        }
        return true;
    }
}

using Reckfell;

public partial class QualityLab3D : Entity3D
{
    [Export] public QualityPreset.Mode Preset { get; set; } = QualityPreset.Mode.Native;
    public Entity3D Geometry { get; private set; } = null!;
    public Camera3D Camera { get; private set; } = null!;
    public override void _Ready()
    {
        Geometry = new Entity3D();AddChild(Geometry);
        var white = new StandardMaterial3D
        {
            AlbedoColor = Colors.White,
            ShadingMode = BaseMaterial3D.ShadingModeEnum.Unshaded
        };
        for (int i = 0; i < 7; i++)
            Geometry.AddChild(new MeshInstance3D
            {
                Mesh = new BoxMesh { Size = new Vector3(0.035f + i * 0.025f, 3.5f, 0.1f) },
                Position = new Vector3(-2.1f + i * 0.7f, 0, 0),
                RotationDegrees = new Vector3(0, 0, 25),
                MaterialOverride = white
            });
        AddChild(new WorldEnvironment
        {
            Environment = new Reckfell.Environment
            {
                BackgroundMode = Reckfell.Environment.BGMode.Color,
                BackgroundColor = Colors.Black,
                AmbientLightSource = Reckfell.Environment.AmbientSource.Disabled,
                ReflectedLightSource = Reckfell.Environment.ReflectionSource.Disabled
            }
        });
        Camera = new Camera3D
        {
            Current = true,
            Projection = Camera3D.ProjectionType.Orthogonal,
            Size = 6,
            Position = new Vector3(0, 0, 5)
        };
        AddChild(Camera);
        var canvas = new CanvasLayer();AddChild(canvas);
        canvas.AddChild(new ColorRect
        {
            Position = new Vector2(8, 8), Size = new Vector2(80, 20),
            Color = new Color(0.08f, 0.25f, 1), MouseFilter = Control.MouseFilterEnum.Ignore
        });
        if (!QualityPreset.Apply(GetViewport(), Preset))
            ReckfellApi.PushWarning("The selected quality preset is unavailable in this renderer; viewport settings were preserved.");
    }
}