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Source/Engine/UI/GUI/Panels/BlurPanel.cs

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+// Copyright (c) 2012-2020 Wojciech Figat. All rights reserved.
+
+namespace FlaxEngine.GUI
+{
+    /// <summary>
+    /// The blur panel that applied the Gaussian-blur to all content beneath the control.
+    /// </summary>
+    /// <seealso cref="FlaxEngine.GUI.ContainerControl" />
+    public class BlurPanel : ContainerControl
+    {
+        /// <summary>
+        /// Gets or sets the blur strength. Defines how blurry the background is. Larger numbers increase blur, resulting in a larger runtime cost on the GPU.
+        /// </summary>
+        [EditorOrder(0), Limit(0, 100, 0.1f), Tooltip("Blur strength defines how blurry the background is. Larger numbers increase blur, resulting in a larger runtime cost on the GPU.")]
+        public float BlurStrength { get; set; }
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="BlurPanel"/> class.
+        /// </summary>
+        public BlurPanel()
+        {
+        }
+
+        /// <inheritdoc />
+        public override void Draw()
+        {
+            base.Draw();
+
+            float strength = BlurStrength;
+            if (strength > Mathf.Epsilon)
+            {
+                Render2D.DrawBlur(new Rectangle(Vector2.Zero, Size), strength);
+            }
+        }
+    }
+}