Add OBJ file format support (#5)#80
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- STACK.md - Technologies and dependencies - ARCHITECTURE.md - System design and patterns - STRUCTURE.md - Directory layout - CONVENTIONS.md - Code style and patterns - TESTING.md - Test structure - INTEGRATIONS.md - External services - CONCERNS.md - Technical debt and issues
- Add ObjParser for parsing Wavefront OBJ files - Create unified MeshImporter that handles STL and OBJ formats - Update Constants to support multiple file patterns (*.stl, *.obj) - Update IFileSystem/FolderFileSystem to support multiple patterns - Update Library and ViewPort to use new MeshImporter OBJ parser supports: - Vertex positions (v) - Vertex normals (vn) - Face definitions with various formats (f v, f v/vt, f v/vt/vn, f v//vn) - Polygon triangulation (fan triangulation for n-gons) - Coordinate system conversion (right-handed to Unity's left-handed) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
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Summary
MeshImporterthat automatically detects file type by extensionChanges
Assets/Scripts/Util/Mesh/ObjParser.cs- Parses OBJ file formatAssets/Scripts/Util/Mesh/MeshImporter.cs- Unified importer for STL/OBJConstants.cs- AddedSupportedFilePatternsarray for multiple formatsIFileSystem.cs/FolderFileSystem.cs- Support multiple file patternsImportFolder.cs- Use new patterns arrayLibrary.cs/ViewPort.cs- Use newMeshImporterOBJ Parser Features
v x y z)vn x y z)f v,f v/vt,f v/vt/vn,f v//vnTest plan
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