feat: add blur

.config/niri/config.kdl

@@ -308,6 +308,7 @@ hotkey-overlay {
      skip-at-startup
 }
 
+
 // Uncomment this line to ask the clients to omit their client-side decorations if possible.
 // If the client will specifically ask for CSD, the request will be honored.
 // Additionally, clients will be informed that they are tiled, removing some client-side rounded corners.
@@ -675,3 +676,36 @@ binds {
 }
 // 隐藏窗口标题栏
 prefer-no-csd
+// --- NIRI BLUR START ---
+// 顶层的blur配置，细节调整blur的效果
+blur {
+    passes 3
+    offset 3
+    noise 0.02
+    saturation 1.5
+}
+// 全局窗口规则。让所有普通窗口以xray的形式显示blur。xray仅渲染一次模糊版本的背景，然后将其以类似“壁纸”的形式显示在窗口后面，不是实时渲染模糊，所以完全没有性能消耗。
+window-rule {
+    background-effect {
+        xray true
+        blur true
+    }
+}
+// 浮动窗口禁用xray可以实时渲染模糊效果但是性能消耗高，开启xray会穿过浮动窗口底下的窗口直接透视到桌面。看个人喜好选择禁用与否吧。
+window-rule {
+    match is-floating=true
+    background-effect {
+        xray true
+        blur true
+    }
+}
+// fuzzle专属的layer规则
+layer-rule {
+    match namespace="^launcher$"
+    geometry-corner-radius 8
+    background-effect {
+        xray false
+        blur true
+    }
+}
+// --- NIRI BLUR END ---