From 76630ab6eef1fd863ced957a6e757e9c32af3d7c Mon Sep 17 00:00:00 2001
From: kion <kion@dashgl.com>
Date: Fri, 27 Sep 2024 11:22:46 +0900
Subject: [PATCH] flat shading for vertex colors

---
 src/ST03.ts   | 8 ++++++++
 src/ST0305.ts | 8 ++++++++
 2 files changed, 16 insertions(+)

diff --git a/src/ST03.ts b/src/ST03.ts
index 7afec20..dd45821 100644
--- a/src/ST03.ts
+++ b/src/ST03.ts
@@ -303,6 +303,14 @@ const updateSceneModel = () => {
   packMesh(buffer, "miku/apron/09_RIGHT_HAND_PLATE.obj", 0x1c0, meta); // 017
   packMesh(buffer, "miku/apron/06_LEFT_HAND_PAN.obj", 0x1d0, meta); // 018
 
+  // Update Vertex Colors
+  for (let ofs = 0x1e70; ofs < 0x2524; ofs += 4) {
+    buffer[ofs + 0] = 0x7f;
+    buffer[ofs + 1] = 0x7f;
+    buffer[ofs + 2] = 0x7f;
+    buffer[ofs + 3] = 0;
+  }
+
   const content = Buffer.from(buffer.subarray(0, meta.contentEnd));
   const [bitField, updatedScene] = compressScene(content);
 
diff --git a/src/ST0305.ts b/src/ST0305.ts
index 5fa5b83..0f90667 100644
--- a/src/ST0305.ts
+++ b/src/ST0305.ts
@@ -607,6 +607,14 @@ const encodeApronMegaman = () => {
   packMesh(buffer, "miku/apron/09_RIGHT_HAND_PLATE.obj", 0x1d0, meta); // 017
   packMesh(buffer, "miku/apron/06_LEFT_HAND_PAN.obj", 0x1e0, meta); // 018
 
+  // Update Vertex Colors
+  for (let ofs = 0x1e80; ofs < 0x2534; ofs += 4) {
+    buffer[ofs + 0] = 0x7f;
+    buffer[ofs + 1] = 0x7f;
+    buffer[ofs + 2] = 0x7f;
+    buffer[ofs + 3] = 0;
+  }
+
   // Update the content length to read
   file.writeUInt32LE(meta.contentEnd, 0x04);
   // file.writeUInt32LE(0x1d, 0x08);