v1.4.0

Highlights

• Added a new VertexMedian split strategy and --split-strategy parameter for more balanced mesh tiling (#92).
• Improved the mesh simplification algorithm for better LOD generation (#91, #23).
• Added --local parameter and fixed coordinate scaling issues (#92, #73).

Added / Changed

• Added new VertexMedian split strategy that partitions meshes based on vertex median position, producing more evenly distributed tiles (#92).
• Added --split-strategy parameter to select the mesh splitting method at runtime (#92).
• Added --local parameter to support local (non-georeferenced) coordinate systems (#92).
• Updated the mesh simplification algorithm with improved vertex decimation and refactored options (#91, #23).
• Removed dead code and cleaned up internal structure (#91).
• Updated README documentation.
• Expanded test suite for the new split strategies and simplification logic.

Fixed

• Fixed coordinate scaling issues that caused incorrect tile placement (#92, #73).
• Fixed a recursion bug in the mesh splitting pipeline (#92).
• Fixed a bug in the split strategy logic that could produce incorrect partitions (#91).

Merged PRs

• Updated simplification algorithm by @HeDo88TH in #91
• New mesh split strategy and fixes by @HeDo88TH in #92

Full Changelog: v1.3.0...v1.4.0

v1.3.0

Highlights

• Fixed tiles generating without textures/colors for materials with only diffuse color (Kd) and no texture map.
• Added support for quad and n-gon faces via fan triangulation.
• OBJ files with line elements (l) are now processed without errors.
• Negative/out-of-range UV coordinates are now wrapped instead of throwing an exception.
• Fixed crash caused by orphan usemtl directives with no subsequent faces.

Added / Changed

• Added fan triangulation for quad and n-gon faces (f with 4+ vertices) in the splitting-stage OBJ parser (MeshUtils.LoadMesh), resolving issues with models exported from Blender and other tools (#60).
• UV coordinates outside the [0, 1] range are now wrapped via modulo instead of throwing an "Invalid texture coordinates" exception (#35).
• Line elements (l) are now gracefully skipped instead of throwing NotSupportedException (#64).
• The default material inserted by ObjParser now carries Name = "default" so that GetMaterialIndexOrDefault resolves it correctly in the glTF converter.
• Material lookup in the glTF converter (Converter.cs) now searches by name instead of relying solely on the index, which could diverge when the default material is inserted at index 0 (#36).
• Fixed the vn (vertex normals) parser branch that incorrectly required segs.Length == 3 instead of >= 4.
• Bumped assembly/file version to 1.3.0.
• Improved nullable annotations across ObjMesh, CommonUtils, MeshT, Material, and other classes to eliminate compiler warnings.
• Significantly expanded the test suite with new test classes: ObjParsingTests, MtlParsingTests, BoundsTests, SplitMultiAxisTests, RecurseSplitTests, ObjMeshParsingTests, ObjParserGltfTests, and corresponding test data files.
• Updated publish profiles.

Fixed

• Fixed tiles generating without texture when the OBJ material uses only Kd (diffuse color) without a map_Kd (texture map) — the glTF output was incorrectly falling back to a grey default material (#36).
• Fixed "Invalid texture coordinates" exception when UV coordinates are negative or exceed 1.0, common with 3ds Max exports and UDIM workflows (#35).
• Fixed "Element not supported: 'l ...'" exception when OBJ files exported from Blender contain line elements (#64).
• Fixed first LOD level not writing tiles during the splitting stage when quads/n-gons were present in the OBJ file (#60).
• Fixed "The number of sub-mesh material names does not match the count of sub-mesh index arrays" crash caused by trailing usemtl directives without subsequent faces (#54).
• Fixed orphan usemtl entries in ObjMesh.ReadFile that caused a mismatch between SubMeshMaterials and SubMeshIndices, crashing WriteFile.
• Fixed various nullable reference warnings throughout the codebase.

Full Changelog: v1.2.0...v1.3.0

v1.2.0

What's Changed

• Repacking textures with bleed ring. by @dknezevic in #85
• Added support for vertex colors by @HeDo88TH in #88
• Upgraded to .NET 10 — All projects, CI workflows, and publish profiles now target .NET 10.0.

Full Changelog: v1.1.0...v1.2.0

v1.1.0

What's Changed

• Taking into account missing tiles on lower LODs by @dknezevic in #78
• fixed exception when loading obj with texture coordinates but no material assigned by @tgdflav in #74
• Fix copy file behavior: Using trimmed line to get file path in Utils.cs by @EzioHelios in #58
• Ensure GLB data is padded to 8-byte alignment so that validation checks pass by @dknezevic in #80
• Housekeeping by @HeDo88TH in #83

New Contributors

• @dknezevic made their first contribution in #78
• @tgdflav made their first contribution in #74

Full Changelog: v1.0.13...v1.1.0

v1.0.13

What's Changed

• Changes to support coordinate system that use units other than meters. by @andreiveselov in #52
• added support for meshes with diffuse AND normal map by @charly-perspectives in #51
• Minor improvements by @HeDo88TH in #56
• Consider remapping uv range [0, 1] to image pixel range [0, w-1] (or [0, h-1]) in MeshT.BinPackTextures by @EzioHelios in #57
• Y up translation by @dashenxian in #63
• Support texture coordinates greater than1 by @dashenxian in #62
• Target .NET 8.0 by @amiuhle in #70
• Minor improvements, refactor and cleanup by @HeDo88TH in #71
• Update linux-arm.pubxml to build arm ELF in 64bit by @cjgarson in #72

New Contributors

• @andreiveselov made their first contribution in #52
• @charly-perspectives made their first contribution in #51
• @EzioHelios made their first contribution in #57
• @dashenxian made their first contribution in #63
• @amiuhle made their first contribution in #70
• @cjgarson made their first contribution in #72

Full Changelog: v1.0.12...v1.0.13

v1.0.12

Update publish .net version

v1.0.11

Fixed bug in texture packing

v1.0.10

Version bump to v1.0.10

v1.0.9

Version bump to v1.0.9

v1.0.8

Merge pull request #13 from HeDo88TH/master

Various fixes and improvements