From 644fd0fa3c667d0a1b7e28d261e9f1f3b4598a72 Mon Sep 17 00:00:00 2001
From: Yasutake Yohei <61961825+yasutakeyohei@users.noreply.github.com>
Date: Sun, 4 Oct 2026 18:22:54 +0900
Subject: bluebey-studio: ゴル眉画像を差し替え、まえがみを凹の形に
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更新された右側の眉画像(g13-mayu.png)を gol-right.png に反映。まえがみは中央が高くほっぺ側へ下がる（凹の）形に変更し、説明文も更新。
---
 public/bluebey-studio/src/faceArt.js | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

(limited to 'public/bluebey-studio/src/faceArt.js')

diff --git a/public/bluebey-studio/src/faceArt.js b/public/bluebey-studio/src/faceArt.js
index 671ed1d..ca23b74 100644
--- a/public/bluebey-studio/src/faceArt.js
+++ b/public/bluebey-studio/src/faceArt.js
@@ -847,8 +847,8 @@ function drawHeadCover(ctx, spec, limits) {
   const halfSpan = width / 2;
   const boundary = (x) => {
     const t = clamp((x - cx) / halfSpan, -1, 1);
-    // まえがみ: a narrow, deep V pointing down the middle (Atom / Mickey).
-    if (shape === 'fringe') return base + 175 * Math.max(0, 1 - Math.abs(t) * 1.6);
+    // まえがみ: swept down towards the cheeks, raised in the middle.
+    if (shape === 'fringe') return base - 175 * (1 - t * t);
     // はちわれ: the same V upside down - a widow's peak.
     if (shape === 'fringe-up') return base - 320 * Math.max(0, 1 - Math.abs(t) * 1.5);
     // カーブ: a plain shallow curve, higher (more hair) round the sides.
@@ -934,8 +934,9 @@ export function drawHeadCoverWrap(ctx, spec, layout) {
   const cx = layout.offsetX + span * 0.5 + clamp(spec.offsetX ?? 0, -600, 600);
   const vBound = (x) => {
     const t = clamp((x - cx) / half, -1, 1);
-    // まえがみ: a narrow, deep V pointing down the middle (Atom / Mickey).
-    if (shape === 'fringe') return base + 0.15 * Math.max(0, 1 - Math.abs(t) * 1.6);
+    // まえがみ: swept down towards the cheeks, raised in the middle - the
+    // opposite curvature to a central point (concave towards the cheeks).
+    if (shape === 'fringe') return base + 0.22 * t * t;
     // はちわれ: the same V upside down - a widow's peak.
     if (shape === 'fringe-up') return base - 0.18 * Math.max(0, 1 - Math.abs(t) * 1.5);
     // カーブ: a deep round cover - low at the sides, high in the middle, like the
-- 
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