fix(rendering): complete character visual regression fixes

docs/RENDERING-REPAIR-PLAN.md

@@ -242,9 +242,9 @@ godot --path project --script char_select_visual_test.gd
 | R1-01 | 主角晚到、重复事件、重连回归与修复 | R0 最小基线 | 晚到/重入/重试回归通过；真实重连待验 |
 | R1-02 | 地图坐标、高度、相机就绪检查 | R1-01 | A1/C1 晚到定位实景通过；坡地/边界待验 |
 | R2-01 | 同战士 GR2/GLB 实验台及对照报告 | R0 | 待执行 |
-| R2-02 | 发型/身体/附件修复及路线决定 | R2-01 | 待执行 |
+| R2-02 | 发型/身体/附件修复及路线决定 | R2-01 | CPU 绕序、GPU 动态取景和选角朝向已修复；8 个种族 GPU 待机基体矩阵已通过，装备/动作/最终包待验 |
 | R3-01 | 深度/材质/环境与地形校准 | R1、R2 几何稳定 | 材质已有改动，待验证 |
-| R4-01 | 选角、技能栏装配与数据恢复 | R1 | 待执行 |
+| R4-01 | 选角、技能栏装配与数据恢复 | R1 | 快捷栏重叠修复及服务器恢复回归通过；真实登录数据待验 |
 | R5-01 | 包资源清单、最终 `.app` 冒烟与画面报告 | R1–R4 | 待执行 |
 | R6-01 | 性能基线与静态资源缓存试验 | R5 | 后续 |
 
@@ -258,8 +258,31 @@ godot --path project --script char_select_visual_test.gd
 - 发现地图路径原来只在 setup 时按已收到的主角位置选择。新增首次有效主角位置到达后的地图重选，复用已有地图重载和相机/移动同步基点定位函数。
 - 修改 `ui/player_view.gd`：拒绝非法 race、缺失身体文件及解析失败的源文件。模型节点在入树时才实际加载，因此使用源文件预检，不能把入树前为空的 `get_info()` 当成加载失败。
 - 新增 `main_character_sync_test.gd`：测试失败重试、晚到/无信号实体、重入、重复事件、移动不回滚、过期构建等，已执行得到 `failures=0`。注入失败用例的 warning 属预期。
+
+### 2026-09-08 R2/R4 后续记录
+
+以下为历史定位过程，早期 C++ 实验加载了旧 debug 扩展，相关排除结论无效；以文末复核记录为准。
+
+- 确认用户选角用的 `HairIndex 0` 由 `warrior.msm` 精确映射到
+  `hair/hair_1_1.gr2` 与 `warrior_hair_01.dds`；新增解析回归，避免把默认路径或颜色猜测为实际配置。
+- 选角实景中，`warrior_5_1.GR2`（63 骨）与 `hair_1_1.gr2`（74 骨）组合仍无脸部可见。去除发型后脸部完整，故护甲/脸部几何未丢失；分别使用当前身体蒙皮、强制发型绑定姿势、源发型 alpha 和背面剔除渲染均无差异。没有提交这些无效的猜测性改动。下一步校验角色选择协议的 `hair_part` 语义与标准发型编号，而不是继续调整绕序、动画矩阵或透明参数。
+- 修复 `root/msm` 覆盖规格缺少 `PathName` 时的解析回退：原逻辑只查职业根目录，漏掉 `hair/` 子目录，导致 `HairIndex 1001..1012` 找不到模型并静默保留 `PlayerView` 默认的 `hair_1_1`。`race_spec_test.gd` 现覆盖真实 1001 解析和文件定位；选角视觉用例确认 1001 实际替换为 `hair_2_1.gr2`。发型前脸遮挡尚未随该修复消失，继续作为几何组合项跟踪。
+- 移除 `Hud` 中覆盖真实栏位的静态空快捷栏；`Quickbar` 现在有明确的底部锚点尺寸和更高绘制层级。`skill_test.gd` 验证服务端 `type=2` 技能槽恢复后图标可见，且 `race_spec_test.gd`、`skill_test.gd` 已通过。
 - `gamescene_test.gd` 与 `equip_model_test.gd` 已通过；前者故意使用缺失地图，其预期加载错误不能当成真实地图测试通过。
 - 新增 `gamescene_visual_test.gd`：Apple M4 / Metal Forward+ / Godot 4.7.1 上已执行 A1/C1；A1 加载 20 区块/601 物件，C1 加载 20 区块/565 物件，身体加发型共 4 个表面，实体定位断言通过。两者均使用 FakeClient，未连接实际服务器。
 - 截图人工观察：地图和真实人物出现；UI 仍有布局/风格问题，不能标为 R3/R4 完成。选角截图仍复现发型遮脸；单独翻转 winding 的试验未解决，未保留新的绕序修改。
 - 用例命令、输出位置和验证边界见 [test/rendering/README.md](../test/rendering/README.md)。早期失败截图保留在 `build/rendering/`；后续脚本变化应重新执行，不复用旧报告作为新代码证据。
 - 尚未完成：GLB 对照、发型根因修复、完整视觉基线与区域阈值、真实服务器重连、最终 macOS 包验收、R6 优化。下一优先项是发型的身体/附件变换与深度隔离。
+
+### 2026-09-08 R2 根因复核与修复
+
+- 构建复核：`build` 为 Release，编译更新 release dylib，但本地 Godot 加载仍停留在 9 月 7 日的 debug dylib。此前 inverse-bind、alpha 和剔除实验没有加载修改后的扩展，不能用它们排除根因。新增 `bash script/rendering_test.sh`，构建后同步本地加载库、重签名、输出哈希并运行绕序回归。
+- 冻结动画后改用双面材质显示完整后背，证实原选角相机在人物背后；身体背面被剔除，露出远侧正面内壁，后脑头发遂表现为“盖脸”。`cpu_skin()` 重建身体和发型索引时忽略 `flip_winding`，已对齐静态/GPU 网格的索引顺序；`PlayerView` 设置 PC 绕序，选角 pivot 从 -90° 改为 +90°。
+- 真实 Metal 选角复核：`main_part=20009`、`hair_part=0` 的脸、肩甲、护腕及裙甲完整，头发位于头顶；保留头发和原透明贴图。颜色/护甲与用户参考资源的进一步一致性仍待校准，不标为 40250 像素验收。
+- 更正 PathName 结论：MSM 中原有 PathName；`RaceSpec` 的空 SpecialPath 错误覆盖父级路径。已修复继承，并去除引号 token 的词法标记。前轮 hair 子目录回退仅缓解此问题。
+- `character_winding_test.gd` 对比绑定姿势及待机 0/0.5/1 秒的逐三角形反向索引，覆盖身体与发型，结果 `failures=0`。`race_spec_test`、`equip_model_test`、主角恢复回归通过；A1 GameScene 重新加载 20 区块/601 物件，主角定位及真实模型断言通过。
+- 选角输出现在按独立目录保存 `selection.png`、`report.json` 和发型纹理，报告包含实际 debug dylib、身体/头发/贴图哈希、引擎和取样时间。默认发型 CPU 截图：`build/rendering/selection-1788843070-9087/selection.png`；1001 GPU 用例：`build/rendering/selection-1788843071-9069/selection.png`。
+- 未覆盖：全职业、完整动作/换装矩阵、GLB 同资源对照、坡地足底误差、40250 同相机比较、真实联机和最终 macOS 包；R2 整体仍未关闭。
+- GPU 1001 取景根因修复：GPU 顶点着色器变形不会改变 `MeshInstance3D.get_aabb()`，选角此前仍以绑定姿势盒取景，故角色被推到窗口上方。`Metin2Model` 现首帧采样实际蒙皮包围盒用于剔除，并按需提供当前姿势包围盒；`CharSelectScreen` 收到 GPU 就绪通知后用该盒重新取景。`char_select_visual_test.gd` 在冻结 0.5 秒参考姿势后也走同一生产取景路径，并在报告中保留相机与网格包围盒数据。Apple M4 / Metal 的 HairIndex 1001 GPU 截图 [selection-1788844385-11872](../build/rendering/selection-1788844385-11872/selection.png) 人工审阅通过，脸部、发型、盔甲与完整人物均在画面内；对应 debug dylib SHA-256 为 `a268eef3f5cd1fc263652c4e0a9c3693f33f359b3706aa6850525c8e52108b39`。
+- GPU 路径仍保持环境变量启用的实验状态；1001 发型和带装备场景当前只覆盖男战士。完整职业的装备、动作、地图与性能测试仍按 R2/R6 的未完成项推进。
+- 追加 GPU 基体矩阵：使用 `--job=0..7 --main-part=0` 在同一 Apple M4 / Metal 环境生成八种种族的选择截图；全部装配断言通过，人工审阅的 [八种族联系图](../build/rendering/r2-matrix-gpu-contact-sheet.png) 中人物、脸部和默认发型均完整入框。此覆盖仅是无装备的待机选择画面，不替代每职业装备、动作或 40250 参考对比。

extension/src/metin2_model.cpp

@@ -68,6 +68,7 @@ void Metin2Model::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("set_surface_texture", "surface", "path"), &Metin2Model::set_surface_texture);
 	ClassDB::bind_method(D_METHOD("reload"), &Metin2Model::reload);
 	ClassDB::bind_method(D_METHOD("get_info"), &Metin2Model::get_info);
+	ClassDB::bind_method(D_METHOD("get_visual_aabb"), &Metin2Model::get_visual_aabb);
 	ClassDB::bind_method(D_METHOD("get_ground_offset"), &Metin2Model::get_ground_offset);
 	ClassDB::bind_method(D_METHOD("get_hair_options"), &Metin2Model::get_hair_options);
 	ClassDB::bind_method(D_METHOD("set_hair_gr2", "p"), &Metin2Model::set_hair_gr2);
@@ -83,6 +84,11 @@ void Metin2Model::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("set_shield_bone", "b"), &Metin2Model::set_shield_bone);
 	ClassDB::bind_method(D_METHOD("get_shield_bone"), &Metin2Model::get_shield_bone);
 	ClassDB::bind_method(D_METHOD("probe_gr2", "path"), &Metin2Model::probe_gr2);
+	// A renderer consumer may have framed the model before an animation switches
+	// it from the CPU mesh to GPU skinning.  That switch updates the effective
+	// AABB, so expose a small notification instead of making each scene guess a
+	// number of frames to wait.
+	ADD_SIGNAL(MethodInfo("visual_bounds_changed"));
 
 	ADD_PROPERTY(PropertyInfo(Variant::STRING, "gr2_path", PROPERTY_HINT_GLOBAL_FILE, "*.gr2,*.msm"),
 			"set_gr2_path", "get_gr2_path");
@@ -391,6 +397,8 @@ void Metin2Model::reload() {
 	surf_mats.clear();
 	cpu_mesh.unref();
 	gpu_skin_active = false;
+	gpu_visual_bounds_ready = false;
+	have_visual_bounds = false;
 	bones_img.unref();
 	bones_tex.unref();
 	current_skin.clear();
@@ -476,6 +484,8 @@ void Metin2Model::reload() {
 			}
 		}
 		mi->set_custom_aabb(bounds.grow(0.01));
+		visual_bounds = bounds;
+		have_visual_bounds = true;
 	}
 
 	materials = gr2::dump_materials(**file);
@@ -1369,6 +1379,10 @@ void Metin2Model::cpu_skin(const std::vector<gr2::Mat4> &skin) {
 		for (uint32_t t = 0; t < ic; ++t) {
 			iw[t] = (int)m.indices[ib + t];
 		}
+		// Match build_mesh(): CPU animation must preserve the configured winding.
+		if (flip_winding)
+			for (uint32_t t = 0; t + 2 < ic; t += 3)
+				std::swap(iw[t + 1], iw[t + 2]);
 		Array arrays;
 		arrays.resize(Mesh::ARRAY_MAX);
 		arrays[Mesh::ARRAY_VERTEX] = mesh_pos[rp.mesh];
@@ -1430,6 +1444,14 @@ void Metin2Model::cpu_skin(const std::vector<gr2::Mat4> &skin) {
 					nn[2] /= ln;
 				}
 				pw[i] = Vector3(p[0], p[1], p[2]);
+				if (std::isfinite(p[0]) && std::isfinite(p[1]) && std::isfinite(p[2])) {
+					if (have_animated_bounds) {
+						animated_bounds = animated_bounds.expand(pw[i]);
+					} else {
+						animated_bounds = AABB(pw[i], Vector3());
+						have_animated_bounds = true;
+					}
+				}
 				nw[i] = Vector3(nn[0], nn[1], nn[2]);
 				uw[i] = Vector2(v.uv0[0], v.uv0[1]);
 			}
@@ -1448,6 +1470,9 @@ void Metin2Model::cpu_skin(const std::vector<gr2::Mat4> &skin) {
 			int32_t *iw = idx.ptrw();
 			for (uint32_t t = 0; t < ic; ++t)
 				iw[t] = (int)m.indices[ib + t];
+			if (flip_winding)
+				for (uint32_t t = 0; t + 2 < ic; t += 3)
+					std::swap(iw[t + 1], iw[t + 2]);
 			Array a;
 			a.resize(Mesh::ARRAY_MAX);
 			a[Mesh::ARRAY_VERTEX] = hp[rp.mesh];
@@ -1476,9 +1501,55 @@ void Metin2Model::cpu_skin(const std::vector<gr2::Mat4> &skin) {
 		mi->set_surface_override_material(body_surfaces + s, hair_mat);
 	if (mi && have_animated_bounds) {
 		mi->set_custom_aabb(animated_bounds.grow(0.01));
+		visual_bounds = animated_bounds;
+		have_visual_bounds = true;
 	}
 }
 
+bool Metin2Model::_update_skinned_bounds(const std::vector<gr2::Mat4> &skin) {
+	const gr2::FileInfo *afi = active_fi();
+	if (!afi) {
+		return false;
+	}
+	static const gr2::Mat4 I{ 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1 };
+	AABB bounds;
+	bool have_bounds = false;
+	auto expand_mesh = [&](const gr2::FileInfo &fi, const std::vector<int> *remap) {
+		for (const gr2::Mesh &m : fi.meshes) {
+			for (const gr2::Vertex &v : m.vertices) {
+				gr2::Mat4 blend{};
+				float sum = 0.0f;
+				for (int k = 0; k < 4; ++k) sum += v.bone_weight[k];
+				for (int k = 0; k < 4; ++k) {
+					const float w = sum > 0.0f ? v.bone_weight[k] / sum : (k == 0 ? 1.0f : 0.0f);
+					if (w == 0.0f) continue;
+					int bone = (v.bone_index[k] >= 0 && v.bone_index[k] < (int)m.bone_bindings.size())
+							? m.bone_bindings[v.bone_index[k]] : -1;
+					if (remap && bone >= 0 && bone < (int)remap->size()) bone = (*remap)[bone];
+					const gr2::Mat4 &mat = bone >= 0 && bone < (int)skin.size() ? skin[bone] : I;
+					for (int e = 0; e < 16; ++e) blend[e] += w * mat[e];
+				}
+				float p[3];
+				xform_pt(blend, v.pos, p);
+				if (!std::isfinite(p[0]) || !std::isfinite(p[1]) || !std::isfinite(p[2])) continue;
+				const Vector3 point(p[0], p[1], p[2]);
+				bounds = have_bounds ? bounds.expand(point) : AABB(point, Vector3());
+				have_bounds = true;
+			}
+		}
+	};
+	expand_mesh(*afi, nullptr);
+	if (hair_file && *hair_file && !hair_parts.empty() && !hair_bone_remap.empty()) {
+		expand_mesh((**hair_file).file_info(), &hair_bone_remap);
+	}
+	if (have_bounds) {
+		visual_bounds = bounds;
+		have_visual_bounds = true;
+		if (mi) mi->set_custom_aabb(bounds.grow(0.01));
+	}
+	return have_bounds;
+}
+
 void Metin2Model::enable_gpu_skin(bool on) {
 	if (!on || gpu_skin_active || !mi || !file || !*file) {
 		return;
@@ -1504,9 +1575,8 @@ void Metin2Model::enable_gpu_skin(bool on) {
 	if (skel) {
 		skel->set_show_rest_only(true);
 	}
-	// The mesh AABB is bind-pose; the shader moves verts, so widen the cull box
-	// (gr2-skin-space units, ~100/m) or arms-up poses get frustum/shadow-culled.
-	mi->set_custom_aabb(AABB(Vector3(-400, -400, -400), Vector3(800, 800, 800)));
+	// gpu_skin() supplies the first actual posed bounds once the animation
+	// sampler has produced its skin matrices.
 	gpu_skin_active = true;
 	_apply_materials(); // rebuild surface materials with the skinned shader + bones_tex
 	UtilityFunctions::print(vformat("[Metin2Model] GPU-skin mode ON (%d bones)", nbones));
@@ -1517,6 +1587,13 @@ void Metin2Model::gpu_skin(const std::vector<gr2::Mat4> &skin) {
 		return;
 	}
 	current_skin = skin;
+	// The shader owns deformation after this point.  Sample the posed bounds
+	// once for culling and initial camera framing; doing the full vertex walk on
+	// every GPU frame would erase the CPU saving this path is intended to make.
+	if (!gpu_visual_bounds_ready && _update_skinned_bounds(skin)) {
+		gpu_visual_bounds_ready = true;
+		emit_signal("visual_bounds_changed");
+	}
 	const int nbones = bones_img->get_height();
 	PackedByteArray buf;
 	buf.resize(nbones * 3 * 4 * 4); // rows * 3 texels * RGBA * float
@@ -1538,6 +1615,19 @@ String Metin2Model::get_info() const {
 	return last_info;
 }
 
+AABB Metin2Model::get_visual_aabb() {
+	// Consumers such as CharSelect ask only while framing.  Refresh on demand
+	// so their final camera fit reflects the current GPU pose without adding a
+	// per-frame CPU vertex walk to every world actor.
+	if (gpu_skin_active && !current_skin.empty()) {
+		_update_skinned_bounds(current_skin);
+	}
+	if (have_visual_bounds) {
+		return visual_bounds;
+	}
+	return mi && mi->get_mesh().is_valid() ? mi->get_mesh()->get_aabb() : AABB();
+}
+
 String Metin2Model::probe_gr2(const String &path) const {
 	gr2::LoadError err;
 	auto f = mtgodot::gr2_from_file(path, &err);

extension/src/metin2_model.h

@@ -7,6 +7,7 @@
 #include <godot_cpp/classes/ref.hpp>
 #include <godot_cpp/templates/hash_map.hpp>
 #include <godot_cpp/variant/array.hpp>
+#include <godot_cpp/variant/aabb.hpp>
 #include <godot_cpp/variant/packed_string_array.hpp>
 #include <godot_cpp/variant/string.hpp>
 
@@ -126,6 +127,9 @@ public:
 
 	// One-line summary (bones / meshes / verts / bounds).
 	godot::String get_info() const;
+	// Deformed mesh bounds in this node's local GR2 coordinate frame.  Unlike
+	// MeshInstance3D::get_aabb(), this follows the GPU shader pose as well.
+	godot::AABB get_visual_aabb();
 	// Parent-space Y adjustment that places the bind-pose model's lowest point
 	// on the actor origin. GR2 is Z-up/cm; this is converted to Godot Y/metres.
 	double get_ground_offset() const { return ground_offset; }
@@ -237,12 +241,16 @@ private:
 	std::vector<godot::Ref<godot::Material>> surf_mats; // resolved once; re-assigned each cpu_skin frame
 	godot::Ref<godot::ArrayMesh> cpu_mesh;   // rebuilt each frame in cpu_skin mode
 	bool gpu_skin_active = false;
+	bool gpu_visual_bounds_ready = false;
+	bool have_visual_bounds = false;
+	godot::AABB visual_bounds;
 	std::vector<gr2::Mat4> current_skin;
 	godot::Ref<godot::Image> bones_img;      // RGBAF 3 x bone_count
 	godot::Ref<godot::ImageTexture> bones_tex;
 
 	void _clear_children();
 	void _apply_materials();
+	bool _update_skinned_bounds(const std::vector<gr2::Mat4> &skin);
 	godot::String _guess_texture_dir() const;
 	// Resolve a "d:/ymir work/..." path referenced from `base` (.msm/.msa) to an
 	// absolute file. Passes existing absolute paths through.

project/char_select_visual_test.gd

@@ -12,15 +12,29 @@ func _initialize() -> void:
 
 func _run() -> void:
 	root.size = Vector2i(1472, 854)
+	var output := OS.get_environment("MT_RENDER_OUTPUT")
+	if output.is_empty():
+		output = ProjectSettings.globalize_path("res://../build/rendering/selection-%d-%d" % [Time.get_unix_time_from_system(), OS.get_process_id()])
+	DirAccess.make_dir_recursive_absolute(output)
+	var hair_part := 0
+	var job := 0
+	var main_part := 20009
+	for arg in OS.get_cmdline_user_args():
+		if arg.begins_with("--hair="):
+			hair_part = int(arg.trim_prefix("--hair="))
+		elif arg.begins_with("--job="):
+			job = clampi(int(arg.trim_prefix("--job=")), 0, 7)
+		elif arg.begins_with("--main-part="):
+			main_part = max(0, int(arg.trim_prefix("--main-part=")))
 	var client := Client.new()
 	root.add_child(client)
 	var screen := Screen.new()
 	root.add_child(screen)
 	screen.setup(client, AssetRoot.path(), [{
-		"index": 0, "name": "[SA]Admin", "job": 0, "level": 105,
+		"index": 0, "name": "[SA]Admin", "job": job, "level": 105,
 		"guild_name": "[GM-TEAM]", "play_minutes": 2180,
 		"ht": 90, "iq": 15, "st": 90, "dx": 90,
-		"main_part": 20009, "hair_part": 0,
+		"main_part": main_part, "hair_part": hair_part,
 	}])
 	for i in 40:
 		await process_frame
@@ -28,19 +42,80 @@ func _run() -> void:
 		printerr("FAIL: selection model did not load")
 		quit(1)
 		return
+	# R2 diagnostics: compare the exact same armour with the configured hair
+	# removed.  This distinguishes an absent/incorrect face surface from a hair
+	# depth or alpha problem; normal visual tests keep the real HairIndex 0.
+	if "--no-hair" in OS.get_cmdline_user_args():
+		screen._pv.model.set("hair_gr2", "")
+		for _i in 2:
+			await process_frame
 	print("Selected armor: ", screen._pv.model.get("gr2_path"))
+	screen._pv.anim.set_process(false)
+	screen._pv.anim.set("blend_time", 0.0)
+	screen._pv.anim.set("time", 0.5)
+	# Sample after freezing the reference pose: GPU deformation lives in the
+	# shader, so its current bounds are requested by the same production framing
+	# path rather than read back from the static ArrayMesh.
+	screen._frame_model()
 	print("Hair skin: ", screen._pv.model.get("hair_skin"))
 	var ua = preload("res://ui/ui_assets.gd")
-	ua.load_dds_image(String(screen._pv.model.get("hair_skin"))).save_png("/tmp/metin2-hair.png")
+	var hair_image: Image = ua.load_dds_image(String(screen._pv.model.get("hair_skin")))
+	if hair_image != null:
+		hair_image.save_png(output.path_join("hair-texture.png"))
+	var mesh_bounds: Array = []
 	for mi in screen._pv.find_children("*", "MeshInstance3D", true, false):
+		var local_aabb: AABB = mi.get_aabb()
+		var world_aabb: AABB = mi.get_global_transform() * local_aabb
+		mesh_bounds.append({
+			"node": String(mi.name),
+			"local_position": [local_aabb.position.x, local_aabb.position.y, local_aabb.position.z],
+			"local_size": [local_aabb.size.x, local_aabb.size.y, local_aabb.size.z],
+			"world_position": [world_aabb.position.x, world_aabb.position.y, world_aabb.position.z],
+			"world_size": [world_aabb.size.x, world_aabb.size.y, world_aabb.size.z],
+		})
 		for surface in mi.mesh.get_surface_count():
 			print("SURFACE ", surface, " ", mi.mesh.surface_get_name(surface))
-	if not String(screen._pv.model.get("gr2_path")).to_lower().contains("warrior_5_1"):
+			var mat: Material = mi.get_active_material(surface)
+			if mat is ShaderMaterial:
+				print("MATERIAL mode=", mat.get_shader_parameter("mode"), " alpha_write=", mat.shader.code.contains("ALPHA ="))
+				if "--solid-body" in OS.get_cmdline_user_args():
+					var solid := StandardMaterial3D.new()
+					solid.albedo_texture = mat.get_shader_parameter("albedo_tex")
+					solid.cull_mode = BaseMaterial3D.CULL_DISABLED
+					mi.set_surface_override_material(surface, solid)
+	if main_part == 20009 and not String(screen._pv.model.get("gr2_path")).to_lower().contains("warrior_5_1"):
 		printerr("FAIL: server armor was not applied")
 		quit(1)
 		return
+	if hair_part == 1001 and not String(screen._pv.model.get("hair_gr2")).to_lower().contains("hair_2_1"):
+		printerr("FAIL: standard HairIndex 1001 did not replace the default hair model")
+		quit(1)
+		return
 	if DisplayServer.get_name() != "headless":
 		await RenderingServer.frame_post_draw
-		root.get_texture().get_image().save_png("/tmp/metin2-char-select.png")
+		if root.get_texture().get_image().save_png(output.path_join("selection.png")) != OK:
+			quit(1)
+			return
+	var hashes := {}
+	for path in ["res://ui/char_select_screen.gd", "res://ui/player_view.gd", "res://ui/equip_model.gd", "res://ui/race_spec.gd", "res://char_select_visual_test.gd"]:
+		hashes[path] = FileAccess.get_sha256(path)
+	for key in ["gr2_path", "hair_gr2", "hair_skin"]:
+		var path := String(screen._pv.model.get(key))
+		if not path.is_empty():
+			hashes[path] = FileAccess.get_sha256(path)
+	var library := "res://bin/libmtgodot.macos.template_debug.dylib"
+	hashes[library] = FileAccess.get_sha256(library)
+	var report := FileAccess.open(output.path_join("report.json"), FileAccess.WRITE)
+	report.store_string(JSON.stringify({"sha256": hashes, "engine": Engine.get_version_info(),
+		"job": job, "main_part": main_part, "hair_part": hair_part, "sample_time": 0.5, "args": OS.get_cmdline_user_args(),
+		"gpu_skin": OS.get_environment("MTGODOT_GPUSKIN"),
+		"camera_position": [_cam_pos(screen).x, _cam_pos(screen).y, _cam_pos(screen).z],
+		"mesh_bounds": mesh_bounds,
+		"scope": "assembly assertions; screenshot requires visual review, not 40250 pixel parity"}, "\t"))
+	report.close()
+	print("SELECTION_OUTPUT: ", output)
 	print("PASS: selection model, server armor and UI assembly")
 	quit()
+
+func _cam_pos(screen: Node) -> Vector3:
+	return screen._cam.position if screen._cam else Vector3.ZERO

project/character_winding_test.gd

@@ -0,0 +1,63 @@
+# Detect CPU animation dropping winding (including accidentally loading an old dylib).
+extends SceneTree
+
+var failures := 0
+
+func _initialize() -> void:
+	call_deferred("run")
+
+func indices(model: Node) -> Array:
+	var meshes := model.find_children("*", "MeshInstance3D", true, false)
+	var out := []
+	for mi in meshes:
+		for s in mi.mesh.get_surface_count():
+			out.append(mi.mesh.surface_get_arrays(s)[Mesh.ARRAY_INDEX])
+	return out
+
+func check_reversed(a: Array, b: Array, stage: String) -> void:
+	if a.is_empty() or a.size() != b.size():
+		failures += 1
+		printerr("FAIL: missing surfaces at ", stage)
+		return
+	for s in a.size():
+		if a[s].size() != b[s].size():
+			failures += 1
+			continue
+		for t in range(0, a[s].size(), 3):
+			if a[s][t] != b[s][t] or a[s][t + 1] != b[s][t + 2] or a[s][t + 2] != b[s][t + 1]:
+				failures += 1
+				printerr("FAIL: winding lost at ", stage, " surface ", s)
+				break
+
+func run() -> void:
+	var base := AssetRoot.path().path_join("PC/ymir work/pc/warrior")
+	var models := []
+	var animations := []
+	for flip in [false, true]:
+		var model: Node = ClassDB.instantiate("Metin2Model")
+		model.set("gr2_path", base.path_join("warrior_novice.gr2"))
+		model.set("hair_gr2", base.path_join("hair/hair_1_1.gr2"))
+		model.set("flip_winding", flip)
+		model.set("lod_enabled", false)
+		root.add_child(model)
+		models.append(model)
+	check_reversed(indices(models[0]), indices(models[1]), "bind")
+	for model in models:
+		var anim: Node = ClassDB.instantiate("Metin2AnimPlayer")
+		anim.set("model_path", model.get_path())
+		anim.set("anim_path", base.path_join("general/wait.msa"))
+		anim.set("playing", false)
+		root.add_child(anim)
+		animations.append(anim)
+	for time in [0.0, 0.5, 1.0]:
+		for anim in animations:
+			anim.set("time", time)
+		check_reversed(indices(models[0]), indices(models[1]), "animated %s" % time)
+		if indices(models[0]).size() != 4:
+			failures += 1
+			printerr("FAIL: body and hair surfaces must both be exercised")
+	print("character_winding_test: failures=", failures)
+	for node in animations + models:
+		node.queue_free()
+	await process_frame
+	quit(1 if failures else 0)

project/hud.gd

@@ -46,7 +46,9 @@ func setup(world: Node, player: Node3D) -> void:
 	_map_h_m = float(rep["map_size_y"]) * 256.0
 	_build_minimap(int(rep["map_size_x"]), int(rep["map_size_y"]))
 	_build_status()
-	_build_hotbar()
+	# 技能快捷栏由 ui/quickbar.gd 管理：它恢复服务端的 36 个槽位、显示
+	# 技能图标并处理冷却。这里以前画的静态空槽会和它重叠，让实际技能看起来
+	# 没有加载，因此 HUD 不再创建第二条快捷栏。
 	_build_inventory()
 	_build_dungeon_compass()
 
@@ -368,22 +370,6 @@ func _build_target_panel() -> void:
 	_target_fill.size = Vector2(180, 12)
 	slot.add_child(_target_fill)
 
-func _build_hotbar() -> void:
-	var row := HBoxContainer.new()
-	row.set_anchors_preset(Control.PRESET_CENTER_BOTTOM)
-	row.position = Vector2(-8 * 23, -56)
-	row.add_theme_constant_override("separation", 4)
-	add_child(row)
-	for i in 8:
-		var slot := _nine("thinboard", 16, 16)
-		slot.custom_minimum_size = Vector2(42, 42)
-		var n := Label.new()
-		n.text = str(i + 1)
-		n.position = Vector2(4, 2)
-		n.add_theme_font_size_override("font_size", 11)
-		slot.add_child(n)
-		row.add_child(slot)
-
 func _build_inventory() -> void:
 	_inv = _nine("board", 32, 128)
 	_inv.set_anchors_preset(Control.PRESET_CENTER_RIGHT)

project/race_spec_test.gd

@@ -19,10 +19,14 @@ class FakeClient extends Node:
 class StubModel extends Node3D:
 	var gr2_path := ""
 	var weapon_gr2 := ""
+	var hair_gr2 := ""
+	var hair_skin := ""
 	var surf := {}
 	func _set(p, v):
 		if p == "gr2_path": gr2_path = v; return true
 		if p == "weapon_gr2": weapon_gr2 = v; return true
+		if p == "hair_gr2": hair_gr2 = v; return true
+		if p == "hair_skin": hair_skin = v; return true
 		return false
 	func set_surface_texture(s, path): surf[s] = path
 
@@ -33,7 +37,10 @@ func _ck(c: bool, m: String) -> void:
 		printerr("FAIL: " + m)
 
 func _init() -> void:
-	_run()
+	call_deferred("_run_and_finish")
+
+func _run_and_finish() -> void:
+	await _run()
 	if _fail == 0:
 		print("PASS: race_spec_test (msm parse + body swap)")
 		quit(0)
@@ -60,6 +67,7 @@ func _run() -> void:
 
 	var rs := RaceSpec.new()
 	_ck(rs.load_file(spec_path), "race spec parsed: %s" % spec_path)
+	_ck(not rs.base_model.begins_with(String.chr(1)), "quoted tokens do not retain lexer sentinel")
 	_ck(rs.shapes.size() >= 5, "shapes parsed (%d)" % rs.shapes.size())
 	_ck(rs.base_model.to_lower().contains("warrior_novice"), "base_model = warrior_novice (%s)" % rs.base_model)
 	var s0: Dictionary = rs.shape(0)
@@ -72,6 +80,15 @@ func _run() -> void:
 	if not h3.is_empty():
 		_ck(h3.get("model", "").contains("hair"), "hair 3 model has 'hair' (%s)" % h3.get("model"))
 		_ck(h3.get("target_skin", "").contains("red"), "hair 3 target_skin = red variant (%s)" % h3.get("target_skin"))
+	# 用户出错的角色用 HairIndex 0；它不是推测的默认路径，必须由 MSM
+	# 明确解析到 hair_1_1，且保持可换的 TargetSkin。
+	var h0: Dictionary = rs.hair(0)
+	_ck(h0.get("path", "") == rs.hair_path and rs.hair_path != "",
+			"empty SpecialPath inherits HairData PathName")
+	_ck(h0.get("model", "").to_lower() == "hair/hair_1_1.gr2",
+			"hair 0 model = hair/hair_1_1.gr2 (%s)" % h0.get("model", ""))
+	_ck(h0.get("target_skin", "").to_lower().contains("warrior_hair_01"),
+			"hair 0 target skin is warrior_hair_01 (%s)" % h0.get("target_skin", ""))
 
 	# --- equip_model 用 race_spec 换身体 ---
 	var fc := FakeClient.new()
@@ -95,3 +112,29 @@ func _run() -> void:
 	if not rs.shape(1).is_empty():
 		_ck(model.gr2_path.to_lower().contains("novice"), "shape 1 -> novice body")
 		_ck(model.surf.has(0), "shape 1 recolour -> set_surface_texture(0, ...)")
+
+	# 标准发型有两段编号：0..5 是 hair_1 的换色，1001..1012 才是
+	# hair_2..4 的不同几何。它们不是道具 vnum，远端/选角不能把它们
+	# 丢给 item_list 后静默回落到 PlayerView 的 hair_1_1 默认模型。
+	var remote_model := StubModel.new()
+	get_root().add_child(remote_model)
+	var remote: Node = EquipModel.new()
+	get_root().add_child(remote)
+	remote.setup_remote(null, func() -> Node: return remote_model, assets, 0,
+			[0, 0, 0, 1001])
+	await process_frame
+	var h1001: Dictionary = rs.hair(1001)
+	_ck(not h1001.is_empty(), "hair 1001 exists in warrior.msm")
+	var remote_h1001: Dictionary = remote._spec_hair(1001)
+	_ck(not remote_h1001.is_empty(), "remote actor resolves hair 1001 (%s)" % remote_h1001)
+	_ck(remote._hair_part() == 1001, "remote actor preserves hair part 1001 (%s)" % str(remote._remote_parts))
+	var remote_hair_model: String = remote._resolve_spec_asset(remote_h1001, String(remote_h1001.get("model", "")))
+	_ck(remote_hair_model != "", "hair 1001 source model path resolves (%s)" % remote_hair_model)
+	# setup_remote refreshes synchronously; this direct retry distinguishes a
+	# setup ordering bug from asset/spec resolution failure.
+	remote._apply_hair_from_parts(remote_model, true)
+	if not h1001.is_empty():
+		_ck(remote_model.hair_gr2.to_lower().ends_with(String(h1001.get("model", "")).to_lower()),
+				"standard hair 1001 resolves MSM geometry (%s)" % remote_model.hair_gr2)
+		_ck(remote_model.hair_skin.to_lower().ends_with(String(h1001.get("target_skin", "")).to_lower()),
+				"standard hair 1001 resolves MSM skin (%s)" % remote_model.hair_skin)

project/skill_test.gd

@@ -319,7 +319,11 @@ func _run() -> void:
 	fc.quickslots = [{"pos": 2, "type": 2, "ref": 16}, {"pos": 3, "type": 1, "ref": 9},
 			{"pos": 4, "type": 3, "ref": 11}]
 	qb2.setup(fc, st, ui, func() -> Node: return pl)   # setup 里自动 restore_from_server
+	_ck(qb2._root.size == Vector2(400, 56) and qb2._root.z_index > 0,
+			"quickbar has a real bottom-anchor extent and stays above legacy HUD")
 	_ck(qb2._state[2].kind == "skill" and int(qb2._state[2].id) == 16, "quickslot 恢复：格2=技能16")
+	_ck(qb2._slots[2].icon.texture != null and qb2._slots[2].icon.visible,
+			"server-restored skill slot renders its icon")
 	_ck(qb2._state[3].kind == "item" and int(qb2._state[3].id) == 9, "quickslot 恢复：格3=道具9")
 	_ck(qb2._state[4].kind == "emote" and int(qb2._state[4].id) == 11, "quickslot 恢复：格4=表情11")
 	qb2.activate(4)

project/ui/char_select_screen.gd

@@ -238,7 +238,7 @@ func _build_stage() -> void:
 	root.add_child(we)
 
 	_pivot = Node3D.new()
-	_pivot.rotation.y = -PI * 0.5
+	_pivot.rotation.y = PI * 0.5
 	root.add_child(_pivot)
 
 	_cam = Camera3D.new()
@@ -254,10 +254,20 @@ func _frame_model() -> void:
 		return
 	var aabb := AABB()
 	var first := true
+	# GPU skinning happens in the vertex shader, so MeshInstance3D's mesh AABB
+	# remains in bind pose.  Prefer the extension's matching deformed bounds for
+	# the main body; accessories continue through their own mesh bounds below.
+	if _pv.model and _pv.model.has_method("get_visual_aabb"):
+		var posed: AABB = _pv.model.call("get_visual_aabb")
+		if posed.size.length_squared() > 0.0:
+			aabb = (_pv.model as Node3D).global_transform * posed
+			first = false
 	for mi in (_pv as Node).find_children("*", "MeshInstance3D", true, false):
 		var m := mi as MeshInstance3D
 		if m.mesh == null:
 			continue
+		if m.get_parent() == _pv.model and m.name == "MeshInstance3D":
+			continue # already covered by Metin2Model.get_visual_aabb()
 		var wb: AABB = m.get_global_transform() * m.get_aabb()
 		aabb = wb if first else aabb.merge(wb)
 		first = false
@@ -274,6 +284,13 @@ func _frame_model() -> void:
 	_cam.position = target + Vector3(0, dist * sin(deg_to_rad(6.0)), dist * cos(deg_to_rad(6.0)))
 	_cam.look_at(target, Vector3.UP)
 
+# Metin2AnimPlayer enables the optional GPU skin path on its first animation
+# sample.  Its material/mesh swap changes the MeshInstance AABB after the
+# initial CPU framing pass, so frame again after the extension confirms it.
+func _on_model_visual_bounds_changed(pv: Node) -> void:
+	if pv == _pv and is_instance_valid(pv):
+		call_deferred("_frame_model")
+
 func _rebuild_model() -> void:
 	if _pivot == null:
 		return
@@ -290,6 +307,8 @@ func _rebuild_model() -> void:
 	_pivot.add_child(pv)
 	if pv.build(_assets, job, pump):
 		_pv = pv
+		if pv.model and pv.model.has_signal("visual_bounds_changed"):
+			pv.model.visual_bounds_changed.connect(_on_model_visual_bounds_changed.bind(pv))
 		if _proto == null and ClassDB.class_exists("Metin2Proto"):
 			_proto = ClassDB.instantiate("Metin2Proto")
 			add_child(_proto)

project/ui/equip_model.gd

@@ -346,11 +346,19 @@ func _resolve_spec_asset(e: Dictionary, rel: String) -> String:
 	var byp := _resolve_asset(String(e.get("path", "")) + rel)
 	if byp != "":
 		return byp
-	# 按 basename 在 pc/<cls>/ 和 pc2/<cls>/ 下找
+	# 规格覆盖层（例如 root/msm/warrior_m.msm）可能只给 Model 名而没有
+	# PathName。按 basename 回退时除职业根目录外，还必须查 hair/；否则
+	# HairIndex 1001..1012 能解析却加载失败，并静默保留 PlayerView 的
+	# hair_1_1 默认模型，造成选角发型遮脸。
 	var bn := rel.get_file()
 	if race >= 0:
 		var cls: String = CLASS_OF[race & 3]
-		for sub in ["PC/ymir work/pc/%s/%s" % [cls, bn], "pc2/ymir work/pc2/%s/%s" % [cls, bn]]:
+		for sub in [
+			"PC/ymir work/pc/%s/%s" % [cls, bn],
+			"PC/ymir work/pc/%s/hair/%s" % [cls, bn],
+			"pc2/ymir work/pc2/%s/%s" % [cls, bn],
+			"pc2/ymir work/pc2/%s/hair/%s" % [cls, bn],
+		]:
 			var q := _resolve_asset(sub)
 			if q != "":
 				return q

project/ui/player_view.gd

@@ -43,6 +43,8 @@ func build(assets_root: String, race: int, pump := Callable()) -> bool:
 
 	model = ClassDB.instantiate("Metin2Model")
 	model.name = "Metin2Model"
+	# PC GR2 surfaces need the same outward winding in bind, CPU and GPU poses.
+	model.set("flip_winding", true)
 	model.set("texture_dir", base)
 	if pump.is_valid(): pump.call()
 	var body := _first_existing([base.path_join("%s_novice.gr2" % cls), base.path_join("%s.gr2" % cls)])

project/ui/quickbar.gd

@@ -339,7 +339,12 @@ func _swap(local_a: int, local_b: int) -> void:
 func _build(parent: Node) -> void:
 	_root = Control.new()
 	_root.set_anchors_preset(Control.PRESET_CENTER_BOTTOM)
-	_root.position = Vector2(-SLOTS_PER_PAGE * 23, -54)
+	# Give the root a real extent.  A zero-sized Control happened to work with
+	# some viewport sizes, but makes anchoring and hit testing fragile on Retina
+	# windows.  The old HUD's empty row then made this look like missing skills.
+	_root.size = Vector2(400, 56)
+	_root.position = Vector2(-200, -62)
+	_root.z_index = 10
 	parent.add_child(_root)
 	var prev := Button.new()
 	prev.text = "‹"

project/ui/race_spec.gd

@@ -57,7 +57,9 @@ func shape(idx: int) -> Dictionary:
 	if e.is_empty():
 		return {}
 	e = e.duplicate()
-	e["path"] = String(e.get("special_path", shape_path))
+	e["path"] = String(e.get("special_path", ""))
+	if e["path"] == "":
+		e["path"] = shape_path
 	e["spec_dir"] = _dir
 	return e
 
@@ -66,7 +68,9 @@ func hair(idx: int) -> Dictionary:
 	if e.is_empty():
 		return {}
 	e = e.duplicate()
-	e["path"] = String(e.get("special_path", hair_path))
+	e["path"] = String(e.get("special_path", ""))
+	if e["path"] == "":
+		e["path"] = hair_path
 	e["spec_dir"] = _dir
 	return e
 
@@ -150,6 +154,8 @@ func _parse_block(toks: Array, i: Array, top := false) -> Dictionary:
 	return d
 
 func _tokval(t):
+	if t is String and t.begins_with(String.chr(1)):
+		return t.substr(1)
 	if t is Dictionary and t.has("str"):
 		return t["str"]
 	return str(t)

script/rendering_test.sh

@@ -0,0 +1,11 @@
+#!/usr/bin/env bash
+# Local macOS visual tests must load the library that was just built.
+set -euo pipefail
+cd "$(dirname "$0")/.."
+cmake -S . -B build -DCMAKE_BUILD_TYPE=Release
+cmake --build build --target mtgodot -j8
+cp project/bin/libmtgodot.macos.template_release.dylib project/bin/libmtgodot.macos.template_debug.dylib
+codesign --force --sign - project/bin/libmtgodot.macos.template_debug.dylib
+shasum -a 256 project/bin/libmtgodot.macos.template_debug.dylib
+"${GODOT:-godot}" --headless --path project --script character_winding_test.gd
+"${GODOT:-godot}" --path project --script char_select_visual_test.gd -- "$@"

test/rendering/README.md

@@ -1,9 +1,11 @@
 # 渲染回归入口
 
-第一批用例针对 R1 场景装配，2026-09-08 开始执行。未宣称 40250 像素一致、发型正确或最终包通过。
+第一批用例针对 R1 场景装配与 R2 角色选择，2026-09-08 开始执行。未宣称 40250 像素一致或最终包通过。
 
 在仓库根目录运行：
 
+本地 macOS 修改 C++ 后先执行 `bash script/rendering_test.sh`：它构建并同步 Godot 实际加载的 debug 路径，重签名后运行 CPU 绕序回归与选角截图。仅构建 Release 不会更新本地 Godot 的 debug 扩展。可传 `--hair=1001`；截图与哈希报告在 `build/rendering/selection-<timestamp>-<pid>/`。`--job=0..7` 与 `--main-part=0` 可复现无装备的八种族选择矩阵；`MTGODOT_GPUSKIN=1` 验证 GPU 路径。`--no-hair` 和 `--solid-body` 仅用于隔离诊断，其画面不能当作普通角色验收。
+
 ```bash
 godot --headless --path project --script main_character_sync_test.gd
 godot --headless --path project --script gamescene_test.gd