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a/editor/body_mesh/ops.py b/editor/body_mesh/ops.py index a18a405..17e1487 100644 --- a/editor/body_mesh/ops.py +++ b/editor/body_mesh/ops.py @@ -1,28 +1,58 @@ # SPDX-License-Identifier: MIT OR GPL-3.0-or-later from collections.abc import Set as AbstractSet +from dataclasses import dataclass from typing import TYPE_CHECKING, Optional import bpy from bpy.types import Context, Operator from .utils import ( + AUTO_CONVERT_MATERIALS, + PROCESSING_ORDER, MaterialInfo, find_body_mesh, + find_face_mesh, generate_unique_name, get_material_face_count, + get_target_mesh_name, + is_retained_material, + is_separable_material, is_skin_material, + isolate_material_faces, + load_edge_uv_data, + select_edges_by_uv, ) if TYPE_CHECKING: from bpy.types import Object +@dataclass +class ProcessResult: + """材质处理结果""" + material_name: str + mesh_name: str + edges_selected: int + edges_dissolved: int + success: bool + error_message: Optional[str] = None + + +@dataclass +class MergeOperationState: + """操作状态，用于错误恢复""" + original_mode: str + original_active_object: Optional["Object"] + original_selected_objects: list["Object"] + processed_materials: list[str] + + class VRM_OT_separate_non_skin_faces(Operator): """将Body网格中非皮肤材质的面分离为独立对象""" bl_idname = "vrm.separate_non_skin_faces" bl_label = "Separate Non-Skin Faces" - bl_description = "将Body网格中非皮肤材质的面分离为独立对象" + bl_description = "将Body网格中可分离材质（CLOTH和其他）的面合并分离为单个独立对象" bl_options: AbstractSet[str] = {"REGISTER", "UNDO"} @classmethod @@ -36,13 +66,13 @@ class VRM_OT_separate_non_skin_faces(Operator): if body_mesh is None: return False - # 检查是否有非皮肤材质 + # 检查是否有可分离材质（使用is_separable_material） mesh_data = body_mesh.data if mesh_data is None: return False for material in mesh_data.materials: - if material is not None and not is_skin_material(material.name): + if material is not None and is_separable_material(material.name): return True return False @@ -88,13 +118,13 @@ class VRM_OT_separate_non_skin_faces(Operator): self.report({"ERROR"}, "Body网格数据无效") return {"CANCELLED"} - # 收集非皮肤材质信息 - non_skin_materials: list[MaterialInfo] = [] + # 收集可分离材质信息（使用is_separable_material） + separable_materials: list[MaterialInfo] = [] for i, material in enumerate(mesh_data.materials): - if material is not None and not is_skin_material(material.name): + if material is not None and is_separable_material(material.name): face_count = get_material_face_count(mesh_data, i) if face_count > 0: - non_skin_materials.append( + separable_materials.append( MaterialInfo( name=material.name, index=i, @@ -103,39 +133,40 @@ class VRM_OT_separate_non_skin_faces(Operator): ) ) - if not non_skin_materials: - self.report({"INFO"}, "没有找到非皮肤材质的面") + if not separable_materials: + self.report({"INFO"}, "没有找到可分离材质的面") return {"FINISHED"} # 获取现有对象名称集合 existing_names = set(obj.name for obj in context.blend_data.objects) - # 为每个非皮肤材质执行分离 - separated_count = 0 - for mat_info in non_skin_materials: - result = self._separate_material_faces( - context, body_mesh, armature, mat_info, existing_names - ) - if result: - separated_count += 1 - existing_names.add(result.name) + # 将所有可分离材质的面合并分离为单个对象 + material_indices = [mat_info.index for mat_info in separable_materials] + new_obj = self._separate_all_material_faces( + context, body_mesh, armature, material_indices, existing_names + ) - if separated_count > 0: - self.report({"INFO"}, f"成功分离了 {separated_count} 个材质的面") + if new_obj is not None: + total_faces = sum(mat_info.face_count for mat_info in separable_materials) + material_names = [mat_info.name for mat_info in separable_materials] + self.report( + {"INFO"}, + f"成功分离了 {len(separable_materials)} 个材质的 {total_faces} 个面到 {new_obj.name}" + ) return {"FINISHED"} else: self.report({"WARNING"}, "没有成功分离任何面") return {"CANCELLED"} - def _separate_material_faces( + def _separate_all_material_faces( self, context: Context, body_obj: "Object", armature: "Object", - mat_info: MaterialInfo, + material_indices: list[int], existing_names: set[str], ) -> Optional["Object"]: - """分离指定材质的面为新对象""" + """将所有指定材质的面合并分离为单个新对象""" mesh_data = body_obj.data if mesh_data is None: return None @@ -163,9 +194,10 @@ class VRM_OT_separate_non_skin_faces(Operator): # 返回对象模式以访问网格数据 bpy.ops.object.mode_set(mode="OBJECT") - # 选择使用指定材质的面 + # 选择所有使用可分离材质的面 + material_index_set = set(material_indices) for polygon in mesh_data.polygons: - if polygon.material_index == mat_info.index: + if polygon.material_index in material_index_set: polygon.select = True # 返回编辑模式执行分离 @@ -182,8 +214,8 @@ class VRM_OT_separate_non_skin_faces(Operator): if new_obj is None: return None - # 生成唯一名称 - base_name = self._generate_object_name(mat_info.name) + # 使用固定名称"Body_Separated"，处理命名冲突 + base_name = "Body_Separated" unique_name = generate_unique_name(base_name, existing_names) new_obj.name = unique_name @@ -203,18 +235,405 @@ class VRM_OT_separate_non_skin_faces(Operator): return obj return None - def _generate_object_name(self, material_name: str) -> str: - """根据材质名称生成对象名称""" - # 简化材质名称，移除常见前缀和后缀 - simplified_name = material_name - # 移除 "(Instance)" 后缀 - if simplified_name.endswith(" (Instance)"): - simplified_name = simplified_name[:-11] - # 移除常见的VRM材质前缀 - prefixes_to_remove = ["N00_000_00_", "N00_001_00_", "N00_002_00_"] - for prefix in prefixes_to_remove: - if simplified_name.startswith(prefix): - simplified_name = simplified_name[len(prefix) :] - break - return f"Body_{simplified_name}" +class VRM_OT_merge_uv_edges(Operator): + """根据UV坐标融并边，将三角面转四边面""" + + bl_idname = "vrm.merge_uv_edges" + bl_label = "Merge UV Edges" + bl_description = "根据UV坐标选中并融并边，将三角面转换为四边面" + bl_options: AbstractSet[str] = {"REGISTER", "UNDO"} + + @classmethod + def poll(cls, context: Context) -> bool: + """ + 检查是否可以执行操作 + + Requirements 1.1, 1.2, 1.3, 1.4: + - 检测Armature对象或其子网格对象 + - 检测Body和Face网格是否存在 + - 在任意Blender模式下工作 + """ + armature = cls._get_armature(context) + if armature is None: + return False + + # Requirements 1.1, 1.2: 检查Body和Face网格是否都存在 + body_mesh = find_body_mesh(armature) + face_mesh = find_face_mesh(armature) + + return body_mesh is not None and face_mesh is not None + + @classmethod + def _get_armature(cls, context: Context) -> Optional["Object"]: + """ + 获取当前选中的Armature对象 + + Requirements 1.1: 支持选中Armature或其子网格对象 + """ + active_object = context.active_object + if active_object is None: + return None + + if active_object.type == "ARMATURE": + return active_object + + # 如果选中的是网格，检查其父对象是否为Armature + if active_object.parent is not None and active_object.parent.type == "ARMATURE": + return active_object.parent + + return None + + def execute(self, context: Context) -> set[str]: + """ + 执行边融并操作 + + Requirements 5.3, 5.4, 6.1, 6.2: + - 保存原始状态（模式、选择、活动对象） + - 按PROCESSING_ORDER遍历材质 + - 调用_process_material处理每个材质 + - 恢复状态并报告结果 + """ + # 保存原始状态 + state = self._save_state(context) + + try: + return self._execute_merge(context, state) + except Exception as e: + # 发生错误时恢复状态 + self._restore_state(context, state) + self.report({"ERROR"}, f"边融并操作失败: {str(e)}") + return {"CANCELLED"} + + def _save_state(self, context: Context) -> MergeOperationState: + """保存当前Blender状态""" + original_mode = context.object.mode if context.object else "OBJECT" + original_active = context.view_layer.objects.active + original_selected = list(context.selected_objects) + + return MergeOperationState( + original_mode=original_mode, + original_active_object=original_active, + original_selected_objects=original_selected, + processed_materials=[], + ) + + def _restore_state(self, context: Context, state: MergeOperationState) -> None: + """ + 恢复原始Blender状态 + + Requirements 7.4: 错误时恢复原始状态 + """ + try: + # 确保在对象模式 + if context.object and context.object.mode != "OBJECT": + bpy.ops.object.mode_set(mode="OBJECT") + + # 取消所有选择 + bpy.ops.object.select_all(action="DESELECT") + + # 恢复原始选择 + for obj in state.original_selected_objects: + if obj and obj.name in context.blend_data.objects: + obj.select_set(True) + + # 恢复原始活动对象 + if state.original_active_object and \ + state.original_active_object.name in context.blend_data.objects: + context.view_layer.objects.active = state.original_active_object + + # 恢复原始模式 + if context.object and state.original_mode != "OBJECT": + try: + bpy.ops.object.mode_set(mode=state.original_mode) + except RuntimeError: + pass # 某些模式可能无法恢复 + except Exception: + pass # 恢复失败时静默处理 + + def _execute_merge( + self, context: Context, state: MergeOperationState + ) -> set[str]: + """ + 执行边融并的核心逻辑 + + Requirements 6.1, 6.2: 按顺序处理材质，先Body后Face + """ + armature = self._get_armature(context) + if armature is None: + self.report({"ERROR"}, "未找到Armature对象") + return {"CANCELLED"} + + body_mesh = find_body_mesh(armature) + face_mesh = find_face_mesh(armature) + + if body_mesh is None or face_mesh is None: + self.report({"ERROR"}, "未找到Body或Face网格对象") + return {"CANCELLED"} + + # 确保在对象模式开始 + if context.object and context.object.mode != "OBJECT": + bpy.ops.object.mode_set(mode="OBJECT") + + # 处理结果统计 + results: list[ProcessResult] = [] + total_edges_dissolved = 0 + materials_processed = 0 + materials_skipped = 0 + + # 按PROCESSING_ORDER遍历材质 (Requirements 6.1, 6.2) + for material_name in PROCESSING_ORDER: + # 确定目标网格 + target_mesh_name = get_target_mesh_name(material_name) + if target_mesh_name is None: + continue + + target_mesh = body_mesh if target_mesh_name == "Body" else face_mesh + + # 处理材质 + result = self._process_material(context, target_mesh, material_name) + results.append(result) + state.processed_materials.append(material_name) + + if result.success: + materials_processed += 1 + total_edges_dissolved += result.edges_dissolved + else: + materials_skipped += 1 + if result.error_message: + self.report({"WARNING"}, result.error_message) + + # 确保返回对象模式 (Requirements 5.4) + if context.object and context.object.mode != "OBJECT": + bpy.ops.object.mode_set(mode="OBJECT") + + # 报告结果 (Requirements 6.4) + if materials_processed > 0: + self.report( + {"INFO"}, + f"处理完成: {materials_processed} 个材质, " + f"融并 {total_edges_dissolved} 条边" + ) + return {"FINISHED"} + else: + self.report({"WARNING"}, f"没有成功处理任何材质 (跳过 {materials_skipped} 个)") + return {"CANCELLED"} + + def _process_material( + self, + context: Context, + mesh_obj: "Object", + material_name: str, + ) -> ProcessResult: + """ + 处理单个材质的边融并 + + Requirements 5.1, 5.2, 6.3, 7.1, 7.2: + - 确定目标网格（Body或Face） + - 加载JSON边数据 + - 调用isolate_material_faces隔离材质 + - 调用select_edges_by_uv选择边 + - 执行dissolve_edges融并 + - 取消隐藏（Alt+H） + - 处理缺失JSON文件 (7.1) + - 处理无匹配边情况 (7.2) + """ + import bmesh + + mesh_name = mesh_obj.name if mesh_obj else "Unknown" + + # 检查是否使用自动转换（tris_convert_to_quads） + if material_name in AUTO_CONVERT_MATERIALS: + return self._process_material_auto_convert(context, mesh_obj, material_name) + + try: + # 加载JSON边数据 (Requirements 5.1, 7.1) + target_uvs = load_edge_uv_data(material_name) + if target_uvs is None: + # Requirements 7.1: 记录警告并跳过 + return ProcessResult( + material_name=material_name, + mesh_name=mesh_name, + edges_selected=0, + edges_dissolved=0, + success=False, + error_message=f"跳过: 未找到材质 {material_name} 的JSON文件", + ) + + if len(target_uvs) == 0: + return ProcessResult( + material_name=material_name, + mesh_name=mesh_name, + edges_selected=0, + edges_dissolved=0, + success=False, + error_message=f"跳过: 材质 {material_name} 的JSON文件中没有边数据", + ) + + # 隔离材质面 (Requirements 5.2) + if not isolate_material_faces(context, mesh_obj, material_name): + return ProcessResult( + material_name=material_name, + mesh_name=mesh_name, + edges_selected=0, + edges_dissolved=0, + success=False, + error_message=f"跳过: 无法隔离材质 {material_name} 的面", + ) + + # 此时应该在编辑模式，边选择模式 + # 取消所有边选择 + bpy.ops.mesh.select_all(action="DESELECT") + + # 使用BMesh选择边 + mesh_data = mesh_obj.data + bm = bmesh.from_edit_mesh(mesh_data) + + # 获取UV层 + uv_layer = bm.loops.layers.uv.active + if uv_layer is None: + # 取消隐藏并返回 + bpy.ops.mesh.reveal() + bpy.ops.object.mode_set(mode="OBJECT") + return ProcessResult( + material_name=material_name, + mesh_name=mesh_name, + edges_selected=0, + edges_dissolved=0, + success=False, + error_message=f"跳过: 网格 {mesh_name} 没有UV层", + ) + + # 选择匹配UV的边 (Requirements 5.2) + edges_selected = select_edges_by_uv(bm, uv_layer, target_uvs) + + # 更新BMesh + bmesh.update_edit_mesh(mesh_data) + + # Requirements 7.2: 处理无匹配边情况 + if edges_selected == 0: + # 取消隐藏并返回 + bpy.ops.mesh.reveal() + bpy.ops.object.mode_set(mode="OBJECT") + return ProcessResult( + material_name=material_name, + mesh_name=mesh_name, + edges_selected=0, + edges_dissolved=0, + success=False, + error_message=( + f"跳过: 材质 {material_name} 没有找到匹配的边 " + f"(目标边数: {len(target_uvs)})" + ), + ) + + # 执行边融并 (Requirements 5.1) + edges_dissolved = 0 + try: + bpy.ops.mesh.dissolve_edges() + edges_dissolved = edges_selected + except RuntimeError as e: + # 融并失败，可能是边不可融并，但不算完全失败 + self.report({"WARNING"}, f"材质 {material_name} 融并边时出现问题: {str(e)}") + + # 取消隐藏 (Alt+H equivalent) (Requirements 5.2) + bpy.ops.mesh.reveal() + + # 返回对象模式 (Requirements 6.3) + bpy.ops.object.mode_set(mode="OBJECT") + + return ProcessResult( + material_name=material_name, + mesh_name=mesh_name, + edges_selected=edges_selected, + edges_dissolved=edges_dissolved, + success=True, + error_message=None, + ) + + except Exception as e: + # Requirements 7.4: 捕获异常，尝试恢复状态 + try: + # 尝试取消隐藏 + if context.object and context.object.mode == "EDIT": + bpy.ops.mesh.reveal() + bpy.ops.object.mode_set(mode="OBJECT") + except Exception: + pass + + return ProcessResult( + material_name=material_name, + mesh_name=mesh_name, + edges_selected=0, + edges_dissolved=0, + success=False, + error_message=f"处理材质 {material_name} 时发生错误: {str(e)}", + ) + + def _process_material_auto_convert( + self, + context: Context, + mesh_obj: "Object", + material_name: str, + ) -> ProcessResult: + """ + 使用Blender自带的tris_convert_to_quads处理规律网格的材质 + + 对于网格结构规律的材质，直接使用Blender的自动转换功能， + 不需要基于UV坐标的边选择。 + """ + mesh_name = mesh_obj.name if mesh_obj else "Unknown" + + try: + # 隔离材质面 + if not isolate_material_faces(context, mesh_obj, material_name): + return ProcessResult( + material_name=material_name, + mesh_name=mesh_name, + edges_selected=0, + edges_dissolved=0, + success=False, + error_message=f"跳过: 无法隔离材质 {material_name} 的面", + ) + + # 切换到面选择模式 + bpy.ops.mesh.select_mode(type="FACE") + + # 选择所有可见的面 + bpy.ops.mesh.select_all(action="SELECT") + + # 使用Blender自带的三角面转四边面 + bpy.ops.mesh.tris_convert_to_quads() + + # 取消隐藏 + bpy.ops.mesh.reveal() + + # 返回对象模式 + bpy.ops.object.mode_set(mode="OBJECT") + + return ProcessResult( + material_name=material_name, + mesh_name=mesh_name, + edges_selected=0, + edges_dissolved=0, + success=True, + error_message=None, + ) + + except Exception as e: + # 捕获异常，尝试恢复状态 + try: + if context.object and context.object.mode == "EDIT": + bpy.ops.mesh.reveal() + bpy.ops.object.mode_set(mode="OBJECT") + except Exception: + pass + + return ProcessResult( + material_name=material_name, + mesh_name=mesh_name, + edges_selected=0, + edges_dissolved=0, + success=False, + error_message=f"处理材质 {material_name} 时发生错误: {str(e)}", + ) diff --git a/editor/body_mesh/panel.py b/editor/body_mesh/panel.py index 4a8a47a..b3df756 100644 --- a/editor/body_mesh/panel.py +++ b/editor/body_mesh/panel.py @@ -7,8 +7,9 @@ from bpy.types import Context, Panel from .utils import ( MaterialInfo, find_body_mesh, + find_face_mesh, get_material_face_count, - is_skin_material, + is_retained_material, ) if TYPE_CHECKING: @@ -69,45 +70,64 @@ class VRM_PT_body_mesh_separator(Panel): layout.label(text="Body网格数据无效", icon="ERROR") return - # 显示材质统计信息 + # 显示材质统计信息（区分保留材质和可分离材质） box = layout.box() box.label(text="材质列表", icon="MATERIAL") - # 收集材质信息 + # 收集材质信息，使用is_retained_material和is_separable_material分类 materials_info: list[MaterialInfo] = [] for i, material in enumerate(mesh_data.materials): if material is not None: face_count = get_material_face_count(mesh_data, i) - is_skin = is_skin_material(material.name) + is_retained = is_retained_material(material.name) materials_info.append( MaterialInfo( name=material.name, index=i, face_count=face_count, - is_skin=is_skin, + is_skin=is_retained, # 使用is_skin字段存储保留状态 ) ) - # 显示材质列表 - has_non_skin = False + # 显示材质列表，区分保留材质（SKIN/HAIR）和可分离材质（CLOTH和其他） + has_separable = False for mat_info in materials_info: row = box.row() - if mat_info.is_skin: - row.label(text=f"[皮肤] {mat_info.name}", icon="CHECKMARK") + if mat_info.is_skin: # is_skin字段现在表示是否为保留材质 + # 保留材质（SKIN/HAIR）标记为"[保留]" + row.label(text=f"[保留] {mat_info.name}", icon="CHECKMARK") else: - row.label(text=f"[非皮肤] {mat_info.name}", icon="MESH_DATA") - has_non_skin = True + # 可分离材质（CLOTH和其他）标记为"[分离]" + row.label(text=f"[分离] {mat_info.name}", icon="MESH_DATA") + has_separable = True row.label(text=f"{mat_info.face_count} 面") # 显示分离操作按钮 layout.separator() col = layout.column() - col.enabled = has_non_skin + col.enabled = has_separable col.operator( "vrm.separate_non_skin_faces", text="分离非皮肤面", icon="MESH_DATA", ) - if not has_non_skin: - layout.label(text="没有非皮肤材质可分离", icon="INFO") + if not has_separable: + layout.label(text="没有可分离材质", icon="INFO") + + # 显示UV边融并按钮 (Requirements 1.2, 1.3) + layout.separator() + armature = self._get_armature(context) + face_mesh = find_face_mesh(armature) if armature else None + has_vrm_structure = body_mesh is not None and face_mesh is not None + + col = layout.column() + col.enabled = has_vrm_structure + col.operator( + "vrm.merge_uv_edges", + text="根据UV转四边面", + icon="MOD_EDGESPLIT", + ) + + if not has_vrm_structure: + layout.label(text="需要Body和Face网格", icon="INFO") diff --git a/editor/body_mesh/test_utils.py b/editor/body_mesh/test_utils.py index 684db20..412cd12 100644 --- a/editor/body_mesh/test_utils.py +++ b/editor/body_mesh/test_utils.py @@ -3,11 +3,19 @@ Property-based tests for body_mesh utility functions. Feature: vrm-body-mesh-separator +Feature: vrm-uv-edge-merger """ from hypothesis import given, settings from hypothesis import strategies as st -from .utils import generate_unique_name, is_skin_material +from .utils import ( + find_body_mesh, + find_face_mesh, + generate_unique_name, + is_skin_material, + normalize_uv_pair, + select_material_faces, +) class TestIsSkinMaterial: @@ -58,3 +66,431 @@ class TestGenerateUniqueName: f"generate_unique_name('{base_name}', {existing_names}) " f"returned '{result}' which is in existing_names" ) + + + +class TestNormalizeUvPair: + """ + Property 4: UV坐标标准化对称性 + *For any* pair of UV coordinates (uv1, uv2), normalizing (uv1, uv2) SHALL produce + the same result as normalizing (uv2, uv1), ensuring order-independent matching. + **Validates: Requirements 4.5** + """ + + @given( + st.tuples( + st.floats(min_value=0.0, max_value=1.0, allow_nan=False, allow_infinity=False), + st.floats(min_value=0.0, max_value=1.0, allow_nan=False, allow_infinity=False), + ), + st.tuples( + st.floats(min_value=0.0, max_value=1.0, allow_nan=False, allow_infinity=False), + st.floats(min_value=0.0, max_value=1.0, allow_nan=False, allow_infinity=False), + ), + ) + @settings(max_examples=100) + def test_uv_normalization_symmetry_property( + self, uv1: tuple[float, float], uv2: tuple[float, float] + ) -> None: + """ + Feature: vrm-uv-edge-merger, Property 4: UV Coordinate Normalization + For any pair of UV coordinates, normalize(uv1, uv2) == normalize(uv2, uv1). + """ + result_forward = normalize_uv_pair(uv1, uv2) + result_reverse = normalize_uv_pair(uv2, uv1) + assert result_forward == result_reverse, ( + f"normalize_uv_pair({uv1}, {uv2}) = {result_forward}, " + f"but normalize_uv_pair({uv2}, {uv1}) = {result_reverse}" + ) + + +class TestUvEdgeMatchingPrecision: + """ + Property 5: UV边匹配精度 + *For any* edge with UV coordinates, the matching function SHALL correctly identify + the edge if its UV coordinates (rounded to 6 decimal places) exist in the target UV set. + **Validates: Requirements 4.2, 4.3, 4.4** + """ + + @given( + st.tuples( + st.floats(min_value=0.0, max_value=1.0, allow_nan=False, allow_infinity=False), + st.floats(min_value=0.0, max_value=1.0, allow_nan=False, allow_infinity=False), + ), + st.tuples( + st.floats(min_value=0.0, max_value=1.0, allow_nan=False, allow_infinity=False), + st.floats(min_value=0.0, max_value=1.0, allow_nan=False, allow_infinity=False), + ), + st.floats(min_value=-1e-7, max_value=1e-7, allow_nan=False, allow_infinity=False), + ) + @settings(max_examples=100) + def test_uv_matching_precision_property( + self, + uv1: tuple[float, float], + uv2: tuple[float, float], + noise: float, + ) -> None: + """ + Feature: vrm-uv-edge-merger, Property 5: UV Edge Matching Precision + For any UV coordinate pair, adding noise smaller than 6 decimal precision + should still result in a match after normalization. + """ + # Create the normalized reference UV pair + normalized_ref = normalize_uv_pair(uv1, uv2) + + # Add small noise (within 6 decimal precision tolerance) + uv1_noisy = (uv1[0] + noise, uv1[1] + noise) + uv2_noisy = (uv2[0] + noise, uv2[1] + noise) + + # Normalize the noisy pair + normalized_noisy = normalize_uv_pair(uv1_noisy, uv2_noisy) + + # Create target UV set with the reference + target_uvs = {normalized_ref} + + # The noisy normalized pair should match the reference + # because the noise is within 6 decimal precision + matches = normalized_noisy in target_uvs + + # Calculate expected match based on rounding behavior + # If noise is small enough, rounding should produce same result + expected_match = normalized_ref == normalized_noisy + + assert matches == expected_match, ( + f"UV matching inconsistency: " + f"normalized_ref={normalized_ref}, normalized_noisy={normalized_noisy}, " + f"noise={noise}, matches={matches}, expected={expected_match}" + ) + + @given( + st.tuples( + st.floats(min_value=0.0, max_value=1.0, allow_nan=False, allow_infinity=False), + st.floats(min_value=0.0, max_value=1.0, allow_nan=False, allow_infinity=False), + ), + st.tuples( + st.floats(min_value=0.0, max_value=1.0, allow_nan=False, allow_infinity=False), + st.floats(min_value=0.0, max_value=1.0, allow_nan=False, allow_infinity=False), + ), + ) + @settings(max_examples=100) + def test_uv_matching_set_membership_property( + self, + uv1: tuple[float, float], + uv2: tuple[float, float], + ) -> None: + """ + Feature: vrm-uv-edge-merger, Property 5: UV Edge Matching Precision + For any UV coordinate pair, the normalized pair should be found in a target + set containing that same normalized pair, regardless of original order. + """ + # Normalize in both orders + normalized_forward = normalize_uv_pair(uv1, uv2) + normalized_reverse = normalize_uv_pair(uv2, uv1) + + # Create target set with forward normalization + target_uvs = {normalized_forward} + + # Both should match (symmetry property ensures this) + assert normalized_forward in target_uvs, ( + f"Forward normalized pair {normalized_forward} not found in target set" + ) + assert normalized_reverse in target_uvs, ( + f"Reverse normalized pair {normalized_reverse} not found in target set " + f"(forward was {normalized_forward})" + ) + + +class MockPolygon: + """Mock polygon for testing material face selection.""" + + def __init__(self, material_index: int) -> None: + self.material_index = material_index + + +class MockMesh: + """Mock mesh data for testing material face selection.""" + + def __init__(self, polygons: list[MockPolygon]) -> None: + self.polygons = polygons + + +class MockMeshObject: + """Mock mesh object for testing material face selection.""" + + def __init__(self, mesh_data: MockMesh) -> None: + self.type = "MESH" + self.data = mesh_data + + +class TestMaterialFaceSelectionCompleteness: + """ + Property 6: Material Face Selection Completeness + *For any* mesh and material index, the face selection function SHALL select + exactly all faces that have the specified material index, and no others. + **Validates: Requirements 3.2** + """ + + @given( + st.lists( + st.integers(min_value=0, max_value=5), + min_size=1, + max_size=50, + ), + st.integers(min_value=0, max_value=5), + ) + @settings(max_examples=100) + def test_material_face_selection_completeness_property( + self, + material_indices: list[int], + target_material_index: int, + ) -> None: + """ + Feature: vrm-uv-edge-merger, Property 6: Material Face Selection Completeness + For any mesh with faces having various material indices, select_material_faces + returns exactly the set of face indices that have the specified material index. + """ + # Create mock polygons with the given material indices + polygons = [MockPolygon(idx) for idx in material_indices] + mock_mesh = MockMesh(polygons) + mock_obj = MockMeshObject(mock_mesh) + + # Call the function under test + result = select_material_faces(mock_obj, target_material_index) + + # Calculate expected result: indices of faces with the target material + expected = { + i for i, mat_idx in enumerate(material_indices) + if mat_idx == target_material_index + } + + # Verify completeness: result should contain exactly the expected faces + assert result == expected, ( + f"select_material_faces returned {result}, expected {expected}. " + f"Material indices: {material_indices}, target: {target_material_index}" + ) + + @given( + st.lists( + st.integers(min_value=0, max_value=5), + min_size=0, + max_size=50, + ), + ) + @settings(max_examples=100) + def test_material_face_selection_no_false_positives_property( + self, + material_indices: list[int], + ) -> None: + """ + Feature: vrm-uv-edge-merger, Property 6: Material Face Selection Completeness + For any mesh, selecting faces for a material index that doesn't exist + should return an empty set. + """ + # Create mock polygons + polygons = [MockPolygon(idx) for idx in material_indices] + mock_mesh = MockMesh(polygons) + mock_obj = MockMeshObject(mock_mesh) + + # Use a material index that definitely doesn't exist + non_existent_index = max(material_indices, default=-1) + 10 + + # Call the function under test + result = select_material_faces(mock_obj, non_existent_index) + + # Should return empty set for non-existent material + assert result == set(), ( + f"select_material_faces returned {result} for non-existent material " + f"index {non_existent_index}, expected empty set" + ) + + def test_material_face_selection_invalid_object(self) -> None: + """ + Feature: vrm-uv-edge-merger, Property 6: Material Face Selection Completeness + Selecting faces from None or non-mesh object should return empty set. + """ + # Test with None + result_none = select_material_faces(None, 0) + assert result_none == set(), "Expected empty set for None object" + + # Test with non-mesh object (mock with wrong type) + class NonMeshObject: + type = "ARMATURE" + data = None + + result_non_mesh = select_material_faces(NonMeshObject(), 0) + assert result_non_mesh == set(), "Expected empty set for non-mesh object" + + +class MockChild: + """Mock child object for testing VRM model detection.""" + + def __init__(self, name: str, obj_type: str = "MESH") -> None: + self.name = name + self.type = obj_type + + +class MockArmature: + """Mock armature object for testing VRM model detection.""" + + def __init__(self, children: list[MockChild]) -> None: + self.type = "ARMATURE" + self.children = children + + +class TestVRMModelDetectionCorrectness: + """ + Property 1: VRM Model Detection Correctness + *For any* Blender object hierarchy, the VRM detection function SHALL return True + if and only if the hierarchy contains an Armature with both "Body" and "Face" + mesh children, regardless of the current Blender mode. + **Validates: Requirements 1.1, 1.2, 1.3, 1.4** + """ + + @given( + st.lists( + st.tuples( + st.text(min_size=1, max_size=20).filter(lambda x: x.strip()), + st.sampled_from(["MESH", "ARMATURE", "EMPTY", "LIGHT", "CAMERA"]), + ), + min_size=0, + max_size=10, + ), + ) + @settings(max_examples=100) + def test_vrm_detection_requires_both_body_and_face( + self, + children_specs: list[tuple[str, str]], + ) -> None: + """ + Feature: vrm-uv-edge-merger, Property 1: VRM Model Detection Correctness + For any set of child objects, VRM detection returns True if and only if + both "Body" and "Face" mesh children exist. + """ + # Create mock children + children = [MockChild(name, obj_type) for name, obj_type in children_specs] + mock_armature = MockArmature(children) + + # Check if Body and Face meshes exist + has_body_mesh = any( + c.name == "Body" and c.type == "MESH" for c in children + ) + has_face_mesh = any( + c.name == "Face" and c.type == "MESH" for c in children + ) + + # Test find_body_mesh + body_result = find_body_mesh(mock_armature) + if has_body_mesh: + assert body_result is not None, ( + f"find_body_mesh should find Body mesh in {children_specs}" + ) + assert body_result.name == "Body", ( + f"find_body_mesh returned wrong object: {body_result.name}" + ) + else: + assert body_result is None, ( + f"find_body_mesh should return None for {children_specs}" + ) + + # Test find_face_mesh + face_result = find_face_mesh(mock_armature) + if has_face_mesh: + assert face_result is not None, ( + f"find_face_mesh should find Face mesh in {children_specs}" + ) + assert face_result.name == "Face", ( + f"find_face_mesh returned wrong object: {face_result.name}" + ) + else: + assert face_result is None, ( + f"find_face_mesh should return None for {children_specs}" + ) + + # VRM detection should be True only if both exist + expected_vrm_valid = has_body_mesh and has_face_mesh + actual_vrm_valid = body_result is not None and face_result is not None + assert actual_vrm_valid == expected_vrm_valid, ( + f"VRM detection mismatch: expected {expected_vrm_valid}, " + f"got {actual_vrm_valid} for {children_specs}" + ) + + def test_vrm_detection_with_valid_vrm_structure(self) -> None: + """ + Feature: vrm-uv-edge-merger, Property 1: VRM Model Detection Correctness + A valid VRM structure with both Body and Face meshes should be detected. + """ + children = [ + MockChild("Body", "MESH"), + MockChild("Face", "MESH"), + MockChild("Hair", "MESH"), + ] + mock_armature = MockArmature(children) + + body = find_body_mesh(mock_armature) + face = find_face_mesh(mock_armature) + + assert body is not None, "Body mesh should be found" + assert face is not None, "Face mesh should be found" + assert body.name == "Body" + assert face.name == "Face" + + def test_vrm_detection_with_missing_body(self) -> None: + """ + Feature: vrm-uv-edge-merger, Property 1: VRM Model Detection Correctness + Missing Body mesh should result in invalid VRM detection. + """ + children = [ + MockChild("Face", "MESH"), + MockChild("Hair", "MESH"), + ] + mock_armature = MockArmature(children) + + body = find_body_mesh(mock_armature) + face = find_face_mesh(mock_armature) + + assert body is None, "Body mesh should not be found" + assert face is not None, "Face mesh should be found" + + def test_vrm_detection_with_missing_face(self) -> None: + """ + Feature: vrm-uv-edge-merger, Property 1: VRM Model Detection Correctness + Missing Face mesh should result in invalid VRM detection. + """ + children = [ + MockChild("Body", "MESH"), + MockChild("Hair", "MESH"), + ] + mock_armature = MockArmature(children) + + body = find_body_mesh(mock_armature) + face = find_face_mesh(mock_armature) + + assert body is not None, "Body mesh should be found" + assert face is None, "Face mesh should not be found" + + def test_vrm_detection_with_non_mesh_body(self) -> None: + """ + Feature: vrm-uv-edge-merger, Property 1: VRM Model Detection Correctness + Body object that is not a MESH should not be detected as Body mesh. + """ + children = [ + MockChild("Body", "EMPTY"), # Not a mesh + MockChild("Face", "MESH"), + ] + mock_armature = MockArmature(children) + + body = find_body_mesh(mock_armature) + face = find_face_mesh(mock_armature) + + assert body is None, "Non-mesh Body should not be found" + assert face is not None, "Face mesh should be found" + + def test_vrm_detection_with_none_armature(self) -> None: + """ + Feature: vrm-uv-edge-merger, Property 1: VRM Model Detection Correctness + None armature should return None for both meshes. + """ + body = find_body_mesh(None) + face = find_face_mesh(None) + + assert body is None, "Body should be None for None armature" + assert face is None, "Face should be None for None armature" diff --git a/editor/body_mesh/utils.py b/editor/body_mesh/utils.py index 437304f..9211d24 100644 --- a/editor/body_mesh/utils.py +++ b/editor/body_mesh/utils.py @@ -1,9 +1,52 @@ # SPDX-License-Identifier: MIT OR GPL-3.0-or-later +import json +import os from dataclasses import dataclass from typing import TYPE_CHECKING, Optional if TYPE_CHECKING: - from bpy.types import Mesh, Object + from bmesh.types import BMesh, BMLayerItem + from bpy.types import Context, Mesh, Object + + +# UV坐标精度（小数位数） +UV_PRECISION = 6 + + +# 材质到网格的映射 +MATERIAL_MESH_MAPPING: dict[str, str] = { + "N00_000_00_Body_00_SKIN (Instance)": "Body", + "N00_000_00_Face_00_SKIN (Instance)": "Face", + "N00_000_00_FaceMouth_00_FACE (Instance)": "Face", + "N00_000_00_FaceEyeline_00_FACE (Instance)": "Face", + "N00_000_00_FaceEyelash_00_FACE (Instance)": "Face", + "N00_000_00_FaceBrow_00_FACE (Instance)": "Face", + "N00_000_00_hH_00_FACE (Instance)": "Face", + "N00_000_00_EyeIris_00_EYE (Instance)": "Face", + "N00_000_00_EyeWhite_00_EYE (Instance)": "Face", + "N00_000_00_EyeHighlight_00_EYE (Instance)": "Face", + "N00_000_00_HairBack_00_HAIR (Instance)": "Body", +} + +# 使用Blender自带tris_convert_to_quads的材质（网格规律，不需要UV匹配） +AUTO_CONVERT_MATERIALS: set[str] = { + "N00_000_00_FaceBrow_00_FACE (Instance)", +} + +# 处理顺序（先Body后Face） +PROCESSING_ORDER: list[str] = [ + "N00_000_00_Body_00_SKIN (Instance)", + "N00_000_00_HairBack_00_HAIR (Instance)", + "N00_000_00_Face_00_SKIN (Instance)", + "N00_000_00_FaceMouth_00_FACE (Instance)", + "N00_000_00_FaceEyeline_00_FACE (Instance)", + "N00_000_00_FaceEyelash_00_FACE (Instance)", + "N00_000_00_FaceBrow_00_FACE (Instance)", + "N00_000_00_hH_00_FACE (Instance)", + "N00_000_00_EyeIris_00_EYE (Instance)", + "N00_000_00_EyeWhite_00_EYE (Instance)", + "N00_000_00_EyeHighlight_00_EYE (Instance)", +] @dataclass @@ -35,6 +78,64 @@ def find_body_mesh(armature: "Object") -> Optional["Object"]: return None +def find_face_mesh(armature: "Object") -> Optional["Object"]: + """ + 在Armature的子对象中查找名为"Face"的网格对象 + + Args: + armature: Armature对象 + + Returns: + Face网格对象，如果不存在则返回None + """ + if armature is None: + return None + + for child in armature.children: + if child.type == "MESH" and child.name == "Face": + return child + + return None + + +def get_target_mesh_name(material_name: str) -> Optional[str]: + """ + 根据材质名称获取目标网格名称 + + Args: + material_name: 材质名称 + + Returns: + 目标网格名称（"Body"或"Face"），如果材质不在映射中返回None + """ + return MATERIAL_MESH_MAPPING.get(material_name) + + +def get_material_index(mesh_obj: "Object", material_name: str) -> Optional[int]: + """ + 获取材质在网格中的索引 + + Args: + mesh_obj: 网格对象 + material_name: 材质名称 + + Returns: + 材质索引，如果不存在返回None + """ + if mesh_obj is None or mesh_obj.type != "MESH": + return None + + for i, slot in enumerate(mesh_obj.material_slots): + if slot.material and slot.material.name == material_name: + return i + + return None + + +# 保留材质关键字常量（不分离的材质：只有SKIN和HAIR） +RETAINED_MATERIAL_KEYWORDS = ["SKIN", "HAIR"] + + def is_skin_material(material_name: str) -> bool: """ 判断材质是否为皮肤材质 @@ -48,6 +149,39 @@ def is_skin_material(material_name: str) -> bool: return "SKIN" in material_name.upper() +def is_retained_material(material_name: str) -> bool: + """ + 判断材质是否为保留材质（不分离） + + 只有SKIN和HAIR材质保留在原Body网格中。 + CLOTH和其他材质都需要分离。 + + Args: + material_name: 材质名称 + + Returns: + 如果材质名包含"SKIN"或"HAIR"则返回True（不区分大小写） + """ + upper_name = material_name.upper() + return any(keyword in upper_name for keyword in RETAINED_MATERIAL_KEYWORDS) + + +def is_separable_material(material_name: str) -> bool: + """ + 判断材质是否为可分离材质 + + 不包含"SKIN"、"HAIR"的材质都是可分离材质， + 包括CLOTH和其他所有材质。 + + Args: + material_name: 材质名称 + + Returns: + 如果材质名不包含"SKIN"、"HAIR"则返回True（包括CLOTH和其他材质） + """ + return not is_retained_material(material_name) + + def get_material_face_count(mesh: "Mesh", material_index: int) -> int: """ 获取指定材质的面数量 @@ -86,3 +220,229 @@ def generate_unique_name(base_name: str, existing_names: set[str]) -> str: if candidate not in existing_names: return candidate suffix += 1 + + +def normalize_uv_pair( + uv1: tuple[float, float], uv2: tuple[float, float] +) -> tuple[tuple[float, float], tuple[float, float]]: + """ + 标准化UV坐标对（较小的在前） + + 通过将较小的UV坐标放在前面，确保相同的边无论顶点顺序如何都能匹配。 + 使用6位小数精度进行比较和存储。 + + Args: + uv1: 第一个UV坐标 (u, v) + uv2: 第二个UV坐标 (u, v) + + Returns: + 标准化后的UV对 ((u1,v1), (u2,v2))，较小的坐标在前 + """ + # 四舍五入到指定精度 + uv1_rounded = (round(uv1[0], UV_PRECISION), round(uv1[1], UV_PRECISION)) + uv2_rounded = (round(uv2[0], UV_PRECISION), round(uv2[1], UV_PRECISION)) + + # 比较并排序，较小的在前 + if uv1_rounded <= uv2_rounded: + return (uv1_rounded, uv2_rounded) + return (uv2_rounded, uv1_rounded) + + +def load_edge_uv_data(material_name: str) -> Optional[set[tuple]]: + """ + 从JSON文件加载边UV数据 + + Args: + material_name: 材质名称（用于定位JSON文件） + + Returns: + UV边坐标集合，格式为 {((u1,v1), (u2,v2)), ...} + 如果文件不存在返回None + """ + # 获取当前模块所在目录 + current_dir = os.path.dirname(os.path.abspath(__file__)) + json_path = os.path.join(current_dir, f"{material_name}.json") + + if not os.path.exists(json_path): + return None + + try: + with open(json_path, "r", encoding="utf-8") as f: + data = json.load(f) + + edge_uvs = data.get("edge_uvs", []) + result: set[tuple] = set() + + for edge_uv in edge_uvs: + if len(edge_uv) == 2 and len(edge_uv[0]) == 2 and len(edge_uv[1]) == 2: + uv1 = (float(edge_uv[0][0]), float(edge_uv[0][1])) + uv2 = (float(edge_uv[1][0]), float(edge_uv[1][1])) + normalized = normalize_uv_pair(uv1, uv2) + result.add(normalized) + + return result + except (json.JSONDecodeError, KeyError, TypeError, ValueError): + return None + + +def select_edges_by_uv( + bm: "BMesh", + uv_layer: "BMLayerItem", + target_uvs: set[tuple], +) -> int: + """ + 根据UV坐标选中边 + + 遍历BMesh中的所有边，比较每条边的loop UV坐标与目标UV集合， + 选中匹配的边。使用6位小数精度进行匹配。 + + Args: + bm: BMesh对象 + uv_layer: UV层 + target_uvs: 目标UV坐标集合，格式为 {((u1,v1), (u2,v2)), ...} + + Returns: + 选中的边数量 + """ + selected_count = 0 + + for edge in bm.edges: + # 获取边的两个顶点关联的loop + # 每条边可能有多个关联的面，我们需要检查所有关联的loop + edge_selected = False + + for face in edge.link_faces: + # 找到这条边在当前面中的两个loop + edge_loops = [] + for loop in face.loops: + if loop.vert in edge.verts: + edge_loops.append(loop) + + if len(edge_loops) == 2: + # 获取两个loop的UV坐标 + uv1_data = edge_loops[0][uv_layer] + uv2_data = edge_loops[1][uv_layer] + + uv1 = (uv1_data.uv[0], uv1_data.uv[1]) + uv2 = (uv2_data.uv[0], uv2_data.uv[1]) + + # 标准化UV对并检查是否在目标集合中 + normalized = normalize_uv_pair(uv1, uv2) + + if normalized in target_uvs: + edge_selected = True + break + + if edge_selected: + edge.select = True + selected_count += 1 + + return selected_count + + +def isolate_material_faces( + context: "Context", + mesh_obj: "Object", + material_name: str, +) -> bool: + """ + 隔离显示指定材质的面（隐藏其他面） + + 进入编辑模式，选择指定材质的所有面，执行隐藏未选中操作， + 然后切换到边选择模式。 + + Args: + context: Blender上下文 + mesh_obj: 网格对象 + material_name: 材质名称 + + Returns: + 是否成功隔离 + + Requirements: 3.1, 3.2, 3.3, 3.4 + """ + import bpy + + if mesh_obj is None or mesh_obj.type != "MESH": + return False + + # 获取材质索引 + material_index = get_material_index(mesh_obj, material_name) + if material_index is None: + return False + + # 保存当前活动对象和选择状态 + original_active = context.view_layer.objects.active + original_mode = context.object.mode if context.object else "OBJECT" + + try: + # 确保在对象模式下开始 + if original_mode != "OBJECT": + bpy.ops.object.mode_set(mode="OBJECT") + + # 取消所有选择，选择目标网格 + bpy.ops.object.select_all(action="DESELECT") + mesh_obj.select_set(True) + context.view_layer.objects.active = mesh_obj + + # 进入编辑模式 (Requirements 3.1) + bpy.ops.object.mode_set(mode="EDIT") + + # 切换到面选择模式 + bpy.ops.mesh.select_mode(type="FACE") + + # 取消所有选择 + bpy.ops.mesh.select_all(action="DESELECT") + + # 设置活动材质索引并选择该材质的所有面 (Requirements 3.2) + mesh_obj.active_material_index = material_index + bpy.ops.object.material_slot_select() + + # 执行隐藏未选中 (Shift+H equivalent) (Requirements 3.3) + bpy.ops.mesh.hide(unselected=True) + + # 切换到边选择模式 (Requirements 3.4) + bpy.ops.mesh.select_mode(type="EDGE") + + return True + + except Exception: + # 发生错误时尝试恢复状态 + try: + if context.object and context.object.mode != "OBJECT": + bpy.ops.object.mode_set(mode="OBJECT") + if original_active: + context.view_layer.objects.active = original_active + except Exception: + pass + return False + + +def select_material_faces( + mesh_obj: "Object", + material_index: int, +) -> set[int]: + """ + 获取指定材质索引的所有面的索引集合 + + 这是一个纯函数，用于测试材质面选择的完整性。 + 不修改任何Blender状态。 + + Args: + mesh_obj: 网格对象 + material_index: 材质索引 + + Returns: + 使用该材质的面索引集合 + """ + if mesh_obj is None or mesh_obj.type != "MESH": + return set() + + mesh = mesh_obj.data + result: set[int] = set() + + for i, polygon in enumerate(mesh.polygons): + if polygon.material_index == material_index: + result.add(i) + + return result diff --git a/registration.py b/registration.py index 9c5314c..598d1ea 100644 --- a/registration.py +++ b/registration.py @@ -434,6 +434,7 @@ classes: list[ ops.VRM_OT_show_blend_file_addon_compatibility_warning, ops.VRM_OT_make_estimated_humanoid_t_pose, body_mesh_ops.VRM_OT_separate_non_skin_faces, + body_mesh_ops.VRM_OT_merge_uv_edges, validation.VrmValidationError, validation.WM_OT_vrm_validator, export_scene.WM_OT_vrm_export_human_bones_assignment, diff --git a/tests/test_uv_matching.py b/tests/test_uv_matching.py new file mode 100644 index 0000000..01565b0 --- /dev/null +++ b/tests/test_uv_matching.py @@ -0,0 +1,728 @@ +# SPDX-License-Identifier: MIT OR GPL-3.0-or-later +""" +Standalone property-based tests for UV edge matching functionality. + +Feature: vrm-uv-edge-merger +Property 5: UV Edge Matching Precision + +These tests can run without Blender dependencies. +""" +from dataclasses import dataclass +from typing import Optional + +from hypothesis import given, settings +from hypothesis import strategies as st + + +# UV坐标精度（小数位数）- copied from utils.py +UV_PRECISION = 6 + + +def normalize_uv_pair( + uv1: tuple[float, float], uv2: tuple[float, float] +) -> tuple[tuple[float, float], tuple[float, float]]: + """ + 标准化UV坐标对（较小的在前） + + 通过将较小的UV坐标放在前面，确保相同的边无论顶点顺序如何都能匹配。 + 使用6位小数精度进行比较和存储。 + + Args: + uv1: 第一个UV坐标 (u, v) + uv2: 第二个UV坐标 (u, v) + + Returns: + 标准化后的UV对 ((u1,v1), (u2,v2))，较小的坐标在前 + """ + # 四舍五入到指定精度 + uv1_rounded = (round(uv1[0], UV_PRECISION), round(uv1[1], UV_PRECISION)) + uv2_rounded = (round(uv2[0], UV_PRECISION), round(uv2[1], UV_PRECISION)) + + # 比较并排序，较小的在前 + if uv1_rounded <= uv2_rounded: + return (uv1_rounded, uv2_rounded) + return (uv2_rounded, uv1_rounded) + + +class TestUvEdgeMatchingPrecision: + """ + Property 5: UV边匹配精度 + *For any* edge with UV coordinates, the matching function SHALL correctly identify + the edge if its UV coordinates (rounded to 6 decimal places) exist in the target UV set. + **Validates: Requirements 4.2, 4.3, 4.4** + """ + + @given( + st.tuples( + st.floats(min_value=0.0, max_value=1.0, allow_nan=False, allow_infinity=False), + st.floats(min_value=0.0, max_value=1.0, allow_nan=False, allow_infinity=False), + ), + st.tuples( + st.floats(min_value=0.0, max_value=1.0, allow_nan=False, allow_infinity=False), + st.floats(min_value=0.0, max_value=1.0, allow_nan=False, allow_infinity=False), + ), + st.floats(min_value=-1e-7, max_value=1e-7, allow_nan=False, allow_infinity=False), + ) + @settings(max_examples=100) + def test_uv_matching_precision_property( + self, + uv1: tuple[float, float], + uv2: tuple[float, float], + noise: float, + ) -> None: + """ + Feature: vrm-uv-edge-merger, Property 5: UV Edge Matching Precision + For any UV coordinate pair, adding noise smaller than 6 decimal precision + should still result in a match after normalization. + """ + # Create the normalized reference UV pair + normalized_ref = normalize_uv_pair(uv1, uv2) + + # Add small noise (within 6 decimal precision tolerance) + uv1_noisy = (uv1[0] + noise, uv1[1] + noise) + uv2_noisy = (uv2[0] + noise, uv2[1] + noise) + + # Normalize the noisy pair + normalized_noisy = normalize_uv_pair(uv1_noisy, uv2_noisy) + + # Create target UV set with the reference + target_uvs = {normalized_ref} + + # The noisy normalized pair should match the reference + # because the noise is within 6 decimal precision + matches = normalized_noisy in target_uvs + + # Calculate expected match based on rounding behavior + # If noise is small enough, rounding should produce same result + expected_match = normalized_ref == normalized_noisy + + assert matches == expected_match, ( + f"UV matching inconsistency: " + f"normalized_ref={normalized_ref}, normalized_noisy={normalized_noisy}, " + f"noise={noise}, matches={matches}, expected={expected_match}" + ) + + @given( + st.tuples( + st.floats(min_value=0.0, max_value=1.0, allow_nan=False, allow_infinity=False), + st.floats(min_value=0.0, max_value=1.0, allow_nan=False, allow_infinity=False), + ), + st.tuples( + st.floats(min_value=0.0, max_value=1.0, allow_nan=False, allow_infinity=False), + st.floats(min_value=0.0, max_value=1.0, allow_nan=False, allow_infinity=False), + ), + ) + @settings(max_examples=100) + def test_uv_matching_set_membership_property( + self, + uv1: tuple[float, float], + uv2: tuple[float, float], + ) -> None: + """ + Feature: vrm-uv-edge-merger, Property 5: UV Edge Matching Precision + For any UV coordinate pair, the normalized pair should be found in a target + set containing that same normalized pair, regardless of original order. + """ + # Normalize in both orders + normalized_forward = normalize_uv_pair(uv1, uv2) + normalized_reverse = normalize_uv_pair(uv2, uv1) + + # Create target set with forward normalization + target_uvs = {normalized_forward} + + # Both should match (symmetry property ensures this) + assert normalized_forward in target_uvs, ( + f"Forward normalized pair {normalized_forward} not found in target set" + ) + assert normalized_reverse in target_uvs, ( + f"Reverse normalized pair {normalized_reverse} not found in target set " + f"(forward was {normalized_forward})" + ) + + @given( + st.tuples( + st.floats(min_value=0.0, max_value=1.0, allow_nan=False, allow_infinity=False), + st.floats(min_value=0.0, max_value=1.0, allow_nan=False, allow_infinity=False), + ), + st.tuples( + st.floats(min_value=0.0, max_value=1.0, allow_nan=False, allow_infinity=False), + st.floats(min_value=0.0, max_value=1.0, allow_nan=False, allow_infinity=False), + ), + ) + @settings(max_examples=100) + def test_uv_precision_rounding_property( + self, + uv1: tuple[float, float], + uv2: tuple[float, float], + ) -> None: + """ + Feature: vrm-uv-edge-merger, Property 5: UV Edge Matching Precision + For any UV coordinate pair, the normalized result should have coordinates + rounded to exactly 6 decimal places. + """ + normalized = normalize_uv_pair(uv1, uv2) + + # Check that all coordinates are rounded to 6 decimal places + for uv in normalized: + for coord in uv: + # Verify rounding by checking round(coord, 6) == coord + assert round(coord, UV_PRECISION) == coord, ( + f"Coordinate {coord} is not rounded to {UV_PRECISION} decimal places" + ) + + +def select_material_faces_impl( + polygons_material_indices: list[int], + material_index: int, +) -> set[int]: + """ + 获取指定材质索引的所有面的索引集合 + + 这是一个纯函数实现，用于测试材质面选择的完整性。 + + Args: + polygons_material_indices: 每个面的材质索引列表 + material_index: 目标材质索引 + + Returns: + 使用该材质的面索引集合 + """ + result: set[int] = set() + for i, mat_idx in enumerate(polygons_material_indices): + if mat_idx == material_index: + result.add(i) + return result + + +class TestMaterialFaceSelectionCompleteness: + """ + Property 6: Material Face Selection Completeness + *For any* mesh and material index, the face selection function SHALL select + exactly all faces that have the specified material index, and no others. + **Validates: Requirements 3.2** + """ + + @given( + st.lists( + st.integers(min_value=0, max_value=5), + min_size=1, + max_size=50, + ), + st.integers(min_value=0, max_value=5), + ) + @settings(max_examples=100) + def test_material_face_selection_completeness_property( + self, + material_indices: list[int], + target_material_index: int, + ) -> None: + """ + Feature: vrm-uv-edge-merger, Property 6: Material Face Selection Completeness + For any mesh with faces having various material indices, select_material_faces + returns exactly the set of face indices that have the specified material index. + """ + # Call the function under test + result = select_material_faces_impl(material_indices, target_material_index) + + # Calculate expected result: indices of faces with the target material + expected = { + i for i, mat_idx in enumerate(material_indices) + if mat_idx == target_material_index + } + + # Verify completeness: result should contain exactly the expected faces + assert result == expected, ( + f"select_material_faces returned {result}, expected {expected}. " + f"Material indices: {material_indices}, target: {target_material_index}" + ) + + @given( + st.lists( + st.integers(min_value=0, max_value=5), + min_size=0, + max_size=50, + ), + ) + @settings(max_examples=100) + def test_material_face_selection_no_false_positives_property( + self, + material_indices: list[int], + ) -> None: + """ + Feature: vrm-uv-edge-merger, Property 6: Material Face Selection Completeness + For any mesh, selecting faces for a material index that doesn't exist + should return an empty set. + """ + # Use a material index that definitely doesn't exist + non_existent_index = max(material_indices, default=-1) + 10 + + # Call the function under test + result = select_material_faces_impl(material_indices, non_existent_index) + + # Should return empty set for non-existent material + assert result == set(), ( + f"select_material_faces returned {result} for non-existent material " + f"index {non_existent_index}, expected empty set" + ) + + @given( + st.lists( + st.integers(min_value=0, max_value=5), + min_size=1, + max_size=50, + ), + st.integers(min_value=0, max_value=5), + ) + @settings(max_examples=100) + def test_material_face_selection_no_duplicates_property( + self, + material_indices: list[int], + target_material_index: int, + ) -> None: + """ + Feature: vrm-uv-edge-merger, Property 6: Material Face Selection Completeness + For any mesh, the selected face indices should be unique (no duplicates). + """ + result = select_material_faces_impl(material_indices, target_material_index) + + # Since result is a set, it inherently has no duplicates + # But we verify the count matches expected + expected_count = sum( + 1 for mat_idx in material_indices if mat_idx == target_material_index + ) + + assert len(result) == expected_count, ( + f"Expected {expected_count} faces, got {len(result)}. " + f"Material indices: {material_indices}, target: {target_material_index}" + ) + + @given( + st.lists( + st.integers(min_value=0, max_value=5), + min_size=1, + max_size=50, + ), + st.integers(min_value=0, max_value=5), + ) + @settings(max_examples=100) + def test_material_face_selection_valid_indices_property( + self, + material_indices: list[int], + target_material_index: int, + ) -> None: + """ + Feature: vrm-uv-edge-merger, Property 6: Material Face Selection Completeness + For any mesh, all returned face indices should be valid (within bounds). + """ + result = select_material_faces_impl(material_indices, target_material_index) + + # All indices should be valid + for face_idx in result: + assert 0 <= face_idx < len(material_indices), ( + f"Invalid face index {face_idx} for mesh with " + f"{len(material_indices)} faces" + ) + + +def find_body_mesh_impl(children: list[tuple[str, str]]) -> bool: + """ + 检查子对象列表中是否存在名为"Body"的MESH对象 + + Args: + children: 子对象列表，每个元素为 (name, type) 元组 + + Returns: + 如果存在名为"Body"的MESH对象返回True，否则返回False + """ + for name, obj_type in children: + if name == "Body" and obj_type == "MESH": + return True + return False + + +def find_face_mesh_impl(children: list[tuple[str, str]]) -> bool: + """ + 检查子对象列表中是否存在名为"Face"的MESH对象 + + Args: + children: 子对象列表，每个元素为 (name, type) 元组 + + Returns: + 如果存在名为"Face"的MESH对象返回True，否则返回False + """ + for name, obj_type in children: + if name == "Face" and obj_type == "MESH": + return True + return False + + +def is_valid_vrm_structure(children: list[tuple[str, str]]) -> bool: + """ + 检查子对象列表是否构成有效的VRM结构 + + Args: + children: 子对象列表，每个元素为 (name, type) 元组 + + Returns: + 如果同时存在Body和Face MESH对象返回True，否则返回False + """ + return find_body_mesh_impl(children) and find_face_mesh_impl(children) + + +class TestVRMModelDetectionCorrectness: + """ + Property 1: VRM Model Detection Correctness + *For any* Blender object hierarchy, the VRM detection function SHALL return True + if and only if the hierarchy contains an Armature with both "Body" and "Face" + mesh children, regardless of the current Blender mode. + **Validates: Requirements 1.1, 1.2, 1.3, 1.4** + """ + + @given( + st.lists( + st.tuples( + st.text(min_size=1, max_size=20).filter(lambda x: x.strip()), + st.sampled_from(["MESH", "ARMATURE", "EMPTY", "LIGHT", "CAMERA"]), + ), + min_size=0, + max_size=10, + ), + ) + @settings(max_examples=100) + def test_vrm_detection_requires_both_body_and_face( + self, + children_specs: list[tuple[str, str]], + ) -> None: + """ + Feature: vrm-uv-edge-merger, Property 1: VRM Model Detection Correctness + For any set of child objects, VRM detection returns True if and only if + both "Body" and "Face" mesh children exist. + """ + # Check if Body and Face meshes exist + has_body_mesh = any( + name == "Body" and obj_type == "MESH" + for name, obj_type in children_specs + ) + has_face_mesh = any( + name == "Face" and obj_type == "MESH" + for name, obj_type in children_specs + ) + + # Test find_body_mesh_impl + body_found = find_body_mesh_impl(children_specs) + assert body_found == has_body_mesh, ( + f"find_body_mesh_impl mismatch: expected {has_body_mesh}, " + f"got {body_found} for {children_specs}" + ) + + # Test find_face_mesh_impl + face_found = find_face_mesh_impl(children_specs) + assert face_found == has_face_mesh, ( + f"find_face_mesh_impl mismatch: expected {has_face_mesh}, " + f"got {face_found} for {children_specs}" + ) + + # VRM detection should be True only if both exist + expected_vrm_valid = has_body_mesh and has_face_mesh + actual_vrm_valid = is_valid_vrm_structure(children_specs) + assert actual_vrm_valid == expected_vrm_valid, ( + f"VRM detection mismatch: expected {expected_vrm_valid}, " + f"got {actual_vrm_valid} for {children_specs}" + ) + + def test_vrm_detection_with_valid_vrm_structure(self) -> None: + """ + Feature: vrm-uv-edge-merger, Property 1: VRM Model Detection Correctness + A valid VRM structure with both Body and Face meshes should be detected. + """ + children = [ + ("Body", "MESH"), + ("Face", "MESH"), + ("Hair", "MESH"), + ] + + assert find_body_mesh_impl(children), "Body mesh should be found" + assert find_face_mesh_impl(children), "Face mesh should be found" + assert is_valid_vrm_structure(children), "VRM structure should be valid" + + def test_vrm_detection_with_missing_body(self) -> None: + """ + Feature: vrm-uv-edge-merger, Property 1: VRM Model Detection Correctness + Missing Body mesh should result in invalid VRM detection. + """ + children = [ + ("Face", "MESH"), + ("Hair", "MESH"), + ] + + assert not find_body_mesh_impl(children), "Body mesh should not be found" + assert find_face_mesh_impl(children), "Face mesh should be found" + assert not is_valid_vrm_structure(children), "VRM structure should be invalid" + + def test_vrm_detection_with_missing_face(self) -> None: + """ + Feature: vrm-uv-edge-merger, Property 1: VRM Model Detection Correctness + Missing Face mesh should result in invalid VRM detection. + """ + children = [ + ("Body", "MESH"), + ("Hair", "MESH"), + ] + + assert find_body_mesh_impl(children), "Body mesh should be found" + assert not find_face_mesh_impl(children), "Face mesh should not be found" + assert not is_valid_vrm_structure(children), "VRM structure should be invalid" + + def test_vrm_detection_with_non_mesh_body(self) -> None: + """ + Feature: vrm-uv-edge-merger, Property 1: VRM Model Detection Correctness + Body object that is not a MESH should not be detected as Body mesh. + """ + children = [ + ("Body", "EMPTY"), # Not a mesh + ("Face", "MESH"), + ] + + assert not find_body_mesh_impl(children), "Non-mesh Body should not be found" + assert find_face_mesh_impl(children), "Face mesh should be found" + assert not is_valid_vrm_structure(children), "VRM structure should be invalid" + + def test_vrm_detection_with_non_mesh_face(self) -> None: + """ + Feature: vrm-uv-edge-merger, Property 1: VRM Model Detection Correctness + Face object that is not a MESH should not be detected as Face mesh. + """ + children = [ + ("Body", "MESH"), + ("Face", "ARMATURE"), # Not a mesh + ] + + assert find_body_mesh_impl(children), "Body mesh should be found" + assert not find_face_mesh_impl(children), "Non-mesh Face should not be found" + assert not is_valid_vrm_structure(children), "VRM structure should be invalid" + + def test_vrm_detection_with_empty_children(self) -> None: + """ + Feature: vrm-uv-edge-merger, Property 1: VRM Model Detection Correctness + Empty children list should result in invalid VRM detection. + """ + children: list[tuple[str, str]] = [] + + assert not find_body_mesh_impl(children), "Body should not be found in empty list" + assert not find_face_mesh_impl(children), "Face should not be found in empty list" + assert not is_valid_vrm_structure(children), "VRM structure should be invalid" + + +@dataclass +class MockOperationState: + """Mock operation state for testing state restoration.""" + original_mode: str + original_active_object: Optional[str] # Object name + original_selected_objects: list[str] # Object names + processed_materials: list[str] + + +def save_state_impl( + current_mode: str, + active_object_name: Optional[str], + selected_object_names: list[str], +) -> MockOperationState: + """ + 保存当前状态的纯函数实现 + + Args: + current_mode: 当前Blender模式 + active_object_name: 当前活动对象名称 + selected_object_names: 当前选中对象名称列表 + + Returns: + 保存的状态对象 + """ + return MockOperationState( + original_mode=current_mode, + original_active_object=active_object_name, + original_selected_objects=list(selected_object_names), + processed_materials=[], + ) + + +def restore_state_impl( + state: MockOperationState, + available_objects: set[str], +) -> tuple[str, Optional[str], list[str]]: + """ + 恢复状态的纯函数实现 + + Args: + state: 保存的状态 + available_objects: 当前可用的对象名称集合 + + Returns: + (恢复的模式, 恢复的活动对象, 恢复的选中对象列表) + """ + # 恢复选中对象（只恢复仍然存在的对象） + restored_selected = [ + name for name in state.original_selected_objects + if name in available_objects + ] + + # 恢复活动对象（只有在对象仍然存在时才恢复） + restored_active = None + if state.original_active_object and state.original_active_object in available_objects: + restored_active = state.original_active_object + + # 恢复模式 + restored_mode = state.original_mode + + return (restored_mode, restored_active, restored_selected) + + +class TestStateRestorationOnError: + """ + Property 7: State Restoration on Error + *For any* error during processing, the system SHALL restore the original Blender + state (mode, active object, selection) before reporting the error. + **Validates: Requirements 7.4** + """ + + @given( + st.sampled_from(["OBJECT", "EDIT", "SCULPT", "VERTEX_PAINT", "WEIGHT_PAINT"]), + st.text(min_size=1, max_size=20).filter(lambda x: x.strip()) | st.none(), + st.lists( + st.text(min_size=1, max_size=20).filter(lambda x: x.strip()), + min_size=0, + max_size=5, + ), + ) + @settings(max_examples=100) + def test_state_save_and_restore_property( + self, + original_mode: str, + active_object: Optional[str], + selected_objects: list[str], + ) -> None: + """ + Feature: vrm-uv-edge-merger, Property 7: State Restoration on Error + For any initial state, saving and then restoring should return to the + original state (assuming all objects still exist). + """ + # Save state + state = save_state_impl(original_mode, active_object, selected_objects) + + # Verify state was saved correctly + assert state.original_mode == original_mode + assert state.original_active_object == active_object + assert state.original_selected_objects == selected_objects + + # Create available objects set (all objects exist) + available_objects = set(selected_objects) + if active_object: + available_objects.add(active_object) + + # Restore state + restored_mode, restored_active, restored_selected = restore_state_impl( + state, available_objects + ) + + # Verify restoration + assert restored_mode == original_mode, ( + f"Mode not restored: expected {original_mode}, got {restored_mode}" + ) + assert restored_active == active_object, ( + f"Active object not restored: expected {active_object}, got {restored_active}" + ) + assert set(restored_selected) == set(selected_objects), ( + f"Selected objects not restored: expected {selected_objects}, " + f"got {restored_selected}" + ) + + @given( + st.sampled_from(["OBJECT", "EDIT", "SCULPT"]), + st.text(min_size=1, max_size=20).filter(lambda x: x.strip()), + st.lists( + st.text(min_size=1, max_size=20).filter(lambda x: x.strip()), + min_size=1, + max_size=5, + ), + st.sets( + st.text(min_size=1, max_size=20).filter(lambda x: x.strip()), + min_size=0, + max_size=3, + ), + ) + @settings(max_examples=100) + def test_state_restore_with_deleted_objects_property( + self, + original_mode: str, + active_object: str, + selected_objects: list[str], + deleted_objects: set[str], + ) -> None: + """ + Feature: vrm-uv-edge-merger, Property 7: State Restoration on Error + When some objects have been deleted, restoration should only restore + objects that still exist. + """ + # Save state + state = save_state_impl(original_mode, active_object, selected_objects) + + # Create available objects (some may have been deleted) + all_objects = set(selected_objects) + all_objects.add(active_object) + available_objects = all_objects - deleted_objects + + # Restore state + restored_mode, restored_active, restored_selected = restore_state_impl( + state, available_objects + ) + + # Mode should always be restored + assert restored_mode == original_mode + + # Active object should only be restored if it still exists + if active_object in deleted_objects: + assert restored_active is None, ( + f"Deleted active object should not be restored: {active_object}" + ) + else: + assert restored_active == active_object + + # Selected objects should only include those that still exist + for obj_name in restored_selected: + assert obj_name in available_objects, ( + f"Restored selected object {obj_name} should be in available objects" + ) + assert obj_name not in deleted_objects, ( + f"Deleted object {obj_name} should not be in restored selection" + ) + + def test_state_restore_with_empty_state(self) -> None: + """ + Feature: vrm-uv-edge-merger, Property 7: State Restoration on Error + Restoring an empty state should work without errors. + """ + state = save_state_impl("OBJECT", None, []) + available_objects: set[str] = set() + + restored_mode, restored_active, restored_selected = restore_state_impl( + state, available_objects + ) + + assert restored_mode == "OBJECT" + assert restored_active is None + assert restored_selected == [] + + def test_state_processed_materials_tracking(self) -> None: + """ + Feature: vrm-uv-edge-merger, Property 7: State Restoration on Error + The state should track processed materials for error reporting. + """ + state = save_state_impl("OBJECT", "Armature", ["Body", "Face"]) + + # Simulate processing materials + state.processed_materials.append("Material1") + state.processed_materials.append("Material2") + + assert len(state.processed_materials) == 2 + assert "Material1" in state.processed_materials + assert "Material2" in state.processed_materials