diff --git a/src-tauri/src/models.rs b/src-tauri/src/models.rs
index a6660e4..0bcee76 100644
--- a/src-tauri/src/models.rs
+++ b/src-tauri/src/models.rs
@@ -512,6 +512,7 @@ pub enum FadePosition {
     Top,
     Bottom,
     None,
+    Both,
 }
 
 /// 이미지 맞춤 설정 (CSS object-fit과 동일)
diff --git a/src/renderer/components/main/Modal/content/NoteSetting.jsx b/src/renderer/components/main/Modal/content/NoteSetting.jsx
index bb5f814..47f9f7b 100644
--- a/src/renderer/components/main/Modal/content/NoteSetting.jsx
+++ b/src/renderer/components/main/Modal/content/NoteSetting.jsx
@@ -94,11 +94,12 @@ export default function NoteSetting({ onClose, settings, onSave }) {
   const tabContentRef = useRef(null);
   const [tabContentHeight, setTabContentHeight] = useState(null);
   const [disableHeightTransition, setDisableHeightTransition] = useState(true);
+  const [isAnimating, setIsAnimating] = useState(false);
 
   const updateTabContentHeight = useCallback(() => {
     const element = tabContentRef.current;
     if (!element) return;
-    const nextHeight = element.scrollHeight;
+    const nextHeight = element.offsetHeight;
     setTabContentHeight((prev) => (prev === nextHeight ? prev : nextHeight));
   }, []);
 
@@ -106,6 +107,7 @@ export default function NoteSetting({ onClose, settings, onSave }) {
     { label: t("noteSetting.auto"), value: "auto" },
     { label: t("noteSetting.top"), value: "top" },
     { label: t("noteSetting.bottom"), value: "bottom" },
+    { label: t("noteSetting.both"), value: "both" },
     { label: t("noteSetting.none"), value: "none" },
   ];
 
@@ -150,6 +152,20 @@ export default function NoteSetting({ onClose, settings, onSave }) {
     return () => cancelAnimationFrame(rafId);
   }, []);
 
+  // transitionend 미발화 시 (높이 동일, 트랜지션 비활성 등) 안전 해제
+  useEffect(() => {
+    if (!isAnimating) return;
+    const timer = setTimeout(() => setIsAnimating(false), 150);
+    return () => clearTimeout(timer);
+  }, [isAnimating]);
+
+  // overflow-hidden 제거 후 BFC 변경으로 인한 높이 차이 보정
+  useEffect(() => {
+    if (!isAnimating && !disableHeightTransition) {
+      requestAnimationFrame(() => updateTabContentHeight());
+    }
+  }, [isAnimating, disableHeightTransition, updateTabContentHeight]);
+
   const handleSave = async () => {
     const normalized = {
       ...settings,
@@ -331,15 +347,25 @@ export default function NoteSetting({ onClose, settings, onSave }) {
         className="flex flex-col bg-[#1A191E] rounded-[13px] border-[1px] border-[#2A2A30] p-[20px]"
         onClick={(e) => e.stopPropagation()}
       >
-        <TabSwitch activeTab={activeTab} onTabChange={setActiveTab} />
+        <TabSwitch activeTab={activeTab} onTabChange={(tab) => {
+          if (tab !== activeTab) {
+            setIsAnimating(true);
+            setActiveTab(tab);
+          }
+        }} />
 
         <div
-          className={`overflow-hidden ${
+          className={`${isAnimating ? "overflow-hidden" : ""} ${
             disableHeightTransition ? "" : "transition-[height] duration-100 ease-in-out"
           }`}
           style={{
             height: tabContentHeight !== null ? `${tabContentHeight}px` : "auto",
           }}
+          onTransitionEnd={(e) => {
+            if (e.propertyName === "height") {
+              setIsAnimating(false);
+            }
+          }}
         >
           <div ref={tabContentRef}>
             {activeTab === NOTE_TAB ? renderNoteTab() : renderAdvancedTab()}
diff --git a/src/renderer/components/main/common/Dropdown.tsx b/src/renderer/components/main/common/Dropdown.tsx
index 713b6ca..e47cf68 100644
--- a/src/renderer/components/main/common/Dropdown.tsx
+++ b/src/renderer/components/main/common/Dropdown.tsx
@@ -27,7 +27,6 @@ const Dropdown: React.FC<DropdownProps> = ({
   const [openUpward, setOpenUpward] = useState(false);
   const ref = useRef<HTMLDivElement>(null);
   const buttonRef = useRef<HTMLButtonElement>(null);
-  const menuRef = useRef<HTMLDivElement>(null);
 
   // 드롭다운 열릴 때 위치 계산
   useEffect(() => {
@@ -97,9 +96,8 @@ const Dropdown: React.FC<DropdownProps> = ({
         </svg>
       </button>
       {open && (
-        <div 
-          ref={menuRef}
-          className={`absolute left-0 flex flex-col justify-center items-center p-[1px] bg-[#2A2A31] border-[1px] border-[#3A3944] rounded-[7px] z-20 overflow-hidden gap-[2px] max-h-[200px] overflow-y-auto ${fullWidth ? "right-0" : ""} ${
+        <div
+          className={`absolute left-0 flex flex-col justify-center items-center p-[1px] bg-[#2A2A31] border-[1px] border-[#3A3944] rounded-[7px] z-20 overflow-x-hidden overflow-y-auto gap-[2px] max-h-[200px] ${fullWidth ? "right-0" : ""} ${
             openUpward ? "bottom-[25px]" : "top-[25px]"
           }`}
         >
diff --git a/src/renderer/components/overlay/WebGLTracks.jsx b/src/renderer/components/overlay/WebGLTracks.jsx
index 9f1c2a5..2015d93 100644
--- a/src/renderer/components/overlay/WebGLTracks.jsx
+++ b/src/renderer/components/overlay/WebGLTracks.jsx
@@ -14,6 +14,7 @@ import {
   SRGBColorSpace,
 } from "three";
 import { animationScheduler } from "../../utils/animationScheduler";
+import { fadePositionToUniform } from "../../../types/noteSettings";
 
 const MAX_NOTES = 2048; // 씬에서 동시에 렌더링할 수 있는 최대 노트 수
 
@@ -235,16 +236,19 @@ const fragmentShader = `
     float trackRelativeY = gradientRatio;
 
     float fadePosFlag = uFadePosition;
-    bool fadeDisabled = fadePosFlag > 2.5;
+    bool fadeDisabled = abs(fadePosFlag - 3.0) < 0.1;
+    bool fadeBoth = fadePosFlag > 3.5;
     bool invertForFade = false;
-    if (!fadeDisabled && fadePosFlag < 0.5) {
-      invertForFade = (vReverse > 0.5);
-    } else if (!fadeDisabled && abs(fadePosFlag - 1.0) < 0.1) {
-      invertForFade = false;
-    } else if (!fadeDisabled) {
-      invertForFade = true;
+    if (!fadeDisabled && !fadeBoth) {
+      if (fadePosFlag < 0.5) {
+        invertForFade = (vReverse > 0.5);
+      } else if (abs(fadePosFlag - 1.0) < 0.1) {
+        invertForFade = false;
+      } else if (abs(fadePosFlag - 2.0) < 0.1) {
+        invertForFade = true;
+      }
     }
-    if (!fadeDisabled && invertForFade) {
+    if (!fadeDisabled && !fadeBoth && invertForFade) {
       trackRelativeY = 1.0 - trackRelativeY;
     }
 
@@ -267,8 +271,12 @@ const fragmentShader = `
       alpha *= smoothAlpha;
     }
 
-    // 트랙 페이드 영역 적용 (상단 또는 하단)
-    if (!fadeDisabled && trackRelativeY < fadeRatio) {
+    // 트랙 페이드 영역 적용
+    if (fadeBoth) {
+      float topFade = clamp(trackRelativeY / fadeRatio, 0.0, 1.0);
+      float bottomFade = clamp((1.0 - trackRelativeY) / fadeRatio, 0.0, 1.0);
+      alpha *= min(topFade, bottomFade);
+    } else if (!fadeDisabled && trackRelativeY < fadeRatio) {
       alpha *= clamp(trackRelativeY / fadeRatio, 0.0, 1.0);
     }
 
@@ -350,16 +358,8 @@ export const WebGLTracks = memo(
           uDelayEnabled: {
             value: noteSettings.delayedNoteEnabled ? 1.0 : 0.0,
           },
-          // fadePosition: 'auto' | 'top' | 'bottom' | 'none' -> 0 | 1 | 2 | 3
           uFadePosition: {
-            value:
-              noteSettings.fadePosition === "top"
-                ? 1.0
-                : noteSettings.fadePosition === "bottom"
-                ? 2.0
-                : noteSettings.fadePosition === "none"
-                ? 3.0
-                : 0.0,
+            value: fadePositionToUniform(noteSettings.fadePosition),
           },
         },
         vertexShader,
@@ -700,13 +700,7 @@ export const WebGLTracks = memo(
         materialRef.current.uniforms.uDelayEnabled.value =
           noteSettings.delayedNoteEnabled ? 1.0 : 0.0;
         materialRef.current.uniforms.uFadePosition.value =
-          noteSettings.fadePosition === "top"
-            ? 1.0
-            : noteSettings.fadePosition === "bottom"
-            ? 2.0
-            : noteSettings.fadePosition === "none"
-            ? 3.0
-            : 0.0;
+          fadePositionToUniform(noteSettings.fadePosition);
       }
     }, [
       noteSettings.speed,
diff --git a/src/renderer/components/overlay/WebGLTracksOGL.jsx b/src/renderer/components/overlay/WebGLTracksOGL.jsx
index b7f5327..3ad48b3 100644
--- a/src/renderer/components/overlay/WebGLTracksOGL.jsx
+++ b/src/renderer/components/overlay/WebGLTracksOGL.jsx
@@ -1,6 +1,7 @@
 import React, { memo, useEffect, useRef } from "react";
 import { Renderer, Camera, Transform, Program, Geometry, Mesh } from "ogl";
 import { animationScheduler } from "../../utils/animationScheduler";
+import { fadePositionToUniform } from "../../../types/noteSettings";
 import { MAX_NOTES } from "@stores/noteBuffer";
 import { isMac } from "@utils/platform";
 
@@ -167,16 +168,19 @@ const fragmentShader = `
     float trackRelativeY = gradientRatio;
 
     float fadePosFlag = uFadePosition;
-    bool fadeDisabled = fadePosFlag > 2.5;
+    bool fadeDisabled = abs(fadePosFlag - 3.0) < 0.1;
+    bool fadeBoth = fadePosFlag > 3.5;
     bool invertForFade = false;
-    if (!fadeDisabled && fadePosFlag < 0.5) {
-      invertForFade = (vReverse > 0.5);
-    } else if (!fadeDisabled && abs(fadePosFlag - 1.0) < 0.1) {
-      invertForFade = false;
-    } else if (!fadeDisabled) {
-      invertForFade = true;
+    if (!fadeDisabled && !fadeBoth) {
+      if (fadePosFlag < 0.5) {
+        invertForFade = (vReverse > 0.5);
+      } else if (abs(fadePosFlag - 1.0) < 0.1) {
+        invertForFade = false;
+      } else if (abs(fadePosFlag - 2.0) < 0.1) {
+        invertForFade = true;
+      }
     }
-    if (!fadeDisabled && invertForFade) {
+    if (!fadeDisabled && !fadeBoth && invertForFade) {
       trackRelativeY = 1.0 - trackRelativeY;
     }
 
@@ -202,7 +206,11 @@ const fragmentShader = `
     }
 
     float fadeMask = 1.0;
-    if (!fadeDisabled && trackRelativeY < fadeRatio) {
+    if (fadeBoth) {
+      float topFade = clamp(trackRelativeY / fadeRatio, 0.0, 1.0);
+      float bottomFade = clamp((1.0 - trackRelativeY) / fadeRatio, 0.0, 1.0);
+      fadeMask = min(topFade, bottomFade);
+    } else if (!fadeDisabled && trackRelativeY < fadeRatio) {
       fadeMask = clamp(trackRelativeY / fadeRatio, 0.0, 1.0);
     }
     bodyAlpha *= fadeMask;
@@ -435,14 +443,7 @@ export const WebGLTracksOGL = memo(
           uTrackHeight: { value: noteSettings.trackHeight || 150 },
           uReverse: { value: noteSettings.reverse ? 1.0 : 0.0 },
           uFadePosition: {
-            value:
-              noteSettings.fadePosition === "top"
-                ? 1.0
-                : noteSettings.fadePosition === "bottom"
-                ? 2.0
-                : noteSettings.fadePosition === "none"
-                ? 3.0
-                : 0.0,
+            value: fadePositionToUniform(noteSettings.fadePosition),
           },
         },
       });
@@ -657,13 +658,7 @@ export const WebGLTracksOGL = memo(
       uniforms.uTrackHeight.value = noteSettings.trackHeight || 150;
       uniforms.uReverse.value = noteSettings.reverse ? 1.0 : 0.0;
       uniforms.uFadePosition.value =
-        noteSettings.fadePosition === "top"
-          ? 1.0
-          : noteSettings.fadePosition === "bottom"
-          ? 2.0
-          : noteSettings.fadePosition === "none"
-          ? 3.0
-          : 0.0;
+        fadePositionToUniform(noteSettings.fadePosition);
     }, [noteSettings]);
 
     return (
diff --git a/src/renderer/locales/en.json b/src/renderer/locales/en.json
index a3b8e7f..454bf21 100644
--- a/src/renderer/locales/en.json
+++ b/src/renderer/locales/en.json
@@ -156,6 +156,7 @@
     "top": "Top",
     "bottom": "Bottom",
     "none": "None",
+    "both": "Full",
     "reverseEffect": "Reverse Effect",
     "save": "Apply",
     "cancel": "Cancel"
diff --git a/src/renderer/locales/ko.json b/src/renderer/locales/ko.json
index 18ccd56..6cbe2a9 100644
--- a/src/renderer/locales/ko.json
+++ b/src/renderer/locales/ko.json
@@ -156,6 +156,7 @@
     "top": "상단",
     "bottom": "하단",
     "none": "없음",
+    "both": "전체",
     "reverseEffect": "리버스 효과",
     "save": "저장",
     "cancel": "취소"
diff --git a/src/renderer/locales/ru.json b/src/renderer/locales/ru.json
index a334aba..785badd 100644
--- a/src/renderer/locales/ru.json
+++ b/src/renderer/locales/ru.json
@@ -156,6 +156,7 @@
     "top": "Сверху",
     "bottom": "Снизу",
     "none": "Нет",
+    "both": "Полный",
     "reverseEffect": "Обратный эффект",
     "save": "Применить",
     "cancel": "Отмена"
diff --git a/src/renderer/locales/zh-Hant.json b/src/renderer/locales/zh-Hant.json
index 56a802e..744fd98 100644
--- a/src/renderer/locales/zh-Hant.json
+++ b/src/renderer/locales/zh-Hant.json
@@ -156,6 +156,7 @@
     "top": "頂部",
     "bottom": "底部",
     "none": "無",
+    "both": "全部",
     "reverseEffect": "反向鍵雨",
     "save": "應用",
     "cancel": "取消"
diff --git a/src/renderer/locales/zh-cn.json b/src/renderer/locales/zh-cn.json
index 88f6625..4fdeb48 100644
--- a/src/renderer/locales/zh-cn.json
+++ b/src/renderer/locales/zh-cn.json
@@ -156,6 +156,7 @@
     "top": "顶部",
     "bottom": "底部",
     "none": "无",
+    "both": "全部",
     "reverseEffect": "反向键雨",
     "save": "应用",
     "cancel": "取消"
diff --git a/src/types/noteSettings.ts b/src/types/noteSettings.ts
index 5f57bd3..e5cc503 100644
--- a/src/types/noteSettings.ts
+++ b/src/types/noteSettings.ts
@@ -6,6 +6,7 @@ export const fadePositionSchema = z.union([
   z.literal("top"),
   z.literal("bottom"),
   z.literal("none"),
+  z.literal("both"),
 ]);
 
 export const noteSettingsSchema = z.object({
@@ -58,6 +59,19 @@ export const NOTE_SETTINGS_DEFAULTS: NoteSettings = Object.freeze({
   keyDisplayDelayMs: NOTE_SETTINGS_CONSTRAINTS.keyDisplayDelayMs.default,
 });
 
+/** fadePosition 문자열을 셰이더 uniform 값으로 변환 */
+const FADE_POSITION_UNIFORM: Record<string, number> = {
+  auto: 0.0,
+  top: 1.0,
+  bottom: 2.0,
+  none: 3.0,
+  both: 4.0,
+};
+
+export function fadePositionToUniform(pos: string): number {
+  return FADE_POSITION_UNIFORM[pos] ?? 0.0;
+}
+
 export function normalizeNoteSettings(raw: unknown): NoteSettings {
   const parsed = noteSettingsSchema.safeParse({
     ...NOTE_SETTINGS_DEFAULTS,