v2.5.1

Bindings

• Fixed missing default parameters in JS bindings, #843 (@elalish)

Bug Fixes

• Various smoothing fixes, #842, #844, #845 (@elalish)

Build/CI Updates

• Fix PyPI push, #836, #837 (@elalish)
• Fix compiler warning, #841 (@starseeker)

v2.5.0

New Features

• Added MinGap, #765 (@mleleszi)
• Added CalculateNormals and SmoothOut, #771 (@elalish)
• Added SmoothByNormals, #776 (@elalish)
• Smoothing now works on quads too, #793 (@elalish)

Bindings

• Added context object to C-bindings for SetProperties and Warp, #795 (@harmanpa)
• Fixed JS bindings for split, splitByPlane, and rotate, #811 (@errendir)
• Added Merge to C-bindings, #820 (@harmanpa)

Bug Fixes

• Fixed lost properties in Decompose, #794 (@harmanpa)
• Various smoothing improvements and fixes, #796, #801, #821, #828, #835 (@elalish)
• Pulled in upstream fixes in Clipper, #817 (@pca006132)
• Triangulator fixes & tests, #824, #832, #834 (@kintel, @elalish)

Performance Improvements

• Added convex polygon triangulation fast path, #829 (@elalish)
• Triangulator O(n^2) => O(nlogn) via collider, #830 (@elalish)

Build/CI Updates

• Fixed GLM install, #782 (@pca006132)
• Split up test files, #792, #800, #826 (@dasoya, @elalish)
• Fixed Clipper import for Windows, #815 (@imciner2)
• Update CI to include GCC 14, #816 (@cjmayo)
• Update GLM to 1.0.1, #819 (@cjmayo)
• Include submodules in release package, #825 (@cjmayo)

Documentation

• Pointer to Java bindings in README, #769 (@cartesian-theatrics)
• Updated web examples to TS and convert our Three example to show material mapping, #805, #806, #807 (@elalish)

ManifoldCAD.org

• Refactor so testing doesn't require a worker, #822 (@hi-ogawa)

v2.4.5

Fixing publishing and deployment - no library changes.

v2.4.0

New Features

• Added RefineToLength, #741 (@elalish)

Bindings

• Updated Python bindings, #692, #700, #707 (@briansturgill)
• Fixed nanobind, #699 (@pca006132)
• Added Merge to Python bindings, #739 (@wrongbad)

Bug Fixes

• Fixed crash on objects near float max dimensions, #714 (@elalish)
• Fix GLM for 1.0, #721 (@cjmayo)
• Fixed 2D hull, #730, #732 (@briansturgill)
• 64-bit indexing of collider pairs, #742 (@pca006132)

Performance Improvements

• Faster Cube constructor, #717 (@pca006132)
• Faster triangulation on some compilers, #718, #722 (@pca006132)

Build/CI Updates

• Separate CMake modules, Clipper2 can be system-supplied, #696, #709, #716, #747 (@pca006132)
• Allow local Python package build/install, #704, #725 (@cjmayo)
• Fix gen-docs warnings, #724 (@cjmayo)
• Install headers into manifold subdirectory, #729 (@cjmayo)
• Test windows Python build on CI, #743 (@pca006132)

Documentation

• Fixed Doxygen link, #746 (@pca006132)
• Added Manifold docs about the use of vert properties and mesh relations, #755 (@elalish)

ManifoldCAD.org

• Added undo, redo, format, and share buttons, #733, #735, #736 (@elalish)

v2.3.1

Fixed model-viewer example, #686 (@elalish)
Fix PyPI and npm publishing. #688, #689 (@elalish)

v2.3.0

New Features

• Added Project function for 3D -> 2D. #638 (@elalish)
• Added Slice function for 3D -> 2D. #644 (@elalish)

Bindings

• Add missing parameters to Python bindings. #646, #647 (@wrongbad)
• Updated Python bindings to use numpy universally. #650, #656 (@wrongbad)

Bug Fixes

• Spec-compliant 3MF output for ManifoldCAD.org. #626, #627 (@pca006132)
• Fixed a couple of triangulator errors. #633 (@elalish)
• Improved our precision calculations, fixed collider. #635 (@elalish)
• Switched the order of rotation and scale in Extrude to match OpenSCAD. #642 (@pca006132)
• Make Warp no longer simplify. #677 (@elalish)
• Fixed Revolve. #682, #684 (@elalish)

Performance Improvements

• Added WarpBatch for better binding efficiency. #651 (@wrongbad)

Build/CI Updates

• Cleanup warnings, improved Tracy support. #640 (@pca006132)
• Added a formatting script. #660 (@pca006132)
• Build Python docs automatically. #665 (@wrongbad)

Examples

• Updated tetrahedron puzzle example. #625 (@elalish)
• Added a Python Colab Example, functionally akin to ManifoldCAD.org. #648 (@elalish)

ManifoldCAD.org

• Added glTF animation support. #624, #637 (@elalish)
• Updated glTF export for official EXT_mesh_manifold extension. #630 (@elalish)
• Enable hash params to point a URL directly to a particular example. #643 (@pca006132)

v2.2.2

Bug Fixes

• Fixed CMake problems. #591, #595 (@pca006132)
• Fixed Python split binding. #593 (@zalo)
• Fixed JS GLB validator errors. #596 (@elalish)
• Allow skipping degenerate triangle removal, to handle zero-volume meshes. #603 (@ramcdona)
• Fixed triangulator bug. #608, #609, #610 (@starseeker, @elalish)
• Fixed JS GLB I/O for mixed properties. #612 (@elalish)
• Fixed Python smooth binding and added calculate_curvature. #615 (@elalish, @pca006132, @zalo)
• Added level_set to Python bindings. #616 (@zalo)
• Check python format in CI. #618 (@pca006132)
• Fixed performance regression with properties. #621 (@pca006132, @stephomi)

v2.2.1

This is another significant update, bringing 2D support, lossless roundtrip of Manifolds through glTF, Python bindings published on PyPI, and a whole new triangulator that fixes lots of geometric edge cases in the Boolean. And of course many bug fixes and performance improvements - a huge thank you to all the contributors!

New Features

• New 2D subsystem, CrossSection, powered by Clipper2. #341, #376 (@geoffder)
• Added Mirror transform. #354 (@geoffder)
• Improved input error handling. #385 (@geoffder)
• Added a Merge helper to turn nearly-manifold input meshes into Manifolds. #394, #481 (@elalish)
• Added SetProperties for computing arbitrary vertex properties. #433 (@elalish)
• Replaced GetCurvature with CalculateCurvature (breaking change). #448 (@elalish)
• Allow partial revolutions. #455 (@cartesian-theatrics)
• Added convex hull ops. #486, #489 (@geoffder)

Bindings

• Updated C bindings. #353, #382, #434 (@geoffder)
• Fix Vite build. #371 (@jirihon)
• Updated JS bindings. #375, #393, #440 (@elalish, @jirihon, @geoffder)
• Added Python bindings. #378, #445, #459, #488, #492, #558 (@pca006132, @johnnybigert, @axel-angel, @elalish, @zalo)
• Built a glTF manifold extension with JS I/O. #420 (@elalish)
• Thread-safety for SDF C-binding. #427 (@harmanpa)
• Switch to nanobind for python - API now requires numpy. #537 (@pca006132)

Bug Fixes

• Make cache thread-safe. #357 (@pca006132)
• Fix flipped triangles in Compose. #404 (@pca006132)
• Added global coplanarity check. #408 (@elalish)
• Fixed Warp simplification. #416 (@elalish)
• Fixed Compose index error. #430 (@pca006132)
• Fixed decimator seg-fault. #447 (@elalish, @Loosetooth)
• Workaround for Assimp 3MF export. #454 (@geoffder)
• Fixed WASM seg-fault. #474 (@elalish)
• Fixed conflicting numbers of properties. #480 (@elalish)
• Fixed a crash on a particular self-intersected model. #501 (@stephomi)
• Fixed precision calculation. #508 (@elalish)
• Fixed decimator odd number of halfedges. #534 (@pca006132)
• Fixed aliasing in SparseIndices. #540 (@pca006132)
• Improved determinism. #550 (@pca006132)
• Fixed incorrect properties output from Boolean. #587 (@elalish)
• Fixed NaN halfedge tangents. #588 (@elalish)
• Fixed a variety of geometrically incorrect complex Boolean results. This all comes down to our polygon triangulator, which had grown increasingly complex. I finally decided to pull the plug and start over with a new algorithm. It is now simpler and significantly more robust. The test suite was also expanded considerably. Developing this new algorithm was the main driver pushing this release to be a few months later than intended. #564 (@elalish)

Performance Improvements

• Lazy transformations for CrossSection. #355 (@geoffder)
• Early simplification of op tree. #368 (@ochafik)
• Parallelize some CSG ops. #381 (@pca006132)
• Doubled the speed of some ops by using hash tables. #484 (@stephomi)
• Improve decimator loops. #483 (@pca006132)
• Optimize sorting. #493, #494 (@stephomi)
• Improved parallelization. #503, #522 (@pca006132)
• Removed OMP and CUDA backends to focus on TBB. #525, #531 (@pca006132)
• Replaced graphlite with union-find. #569 (@pca006132)

Build/CI Updates

• Formatting checks for more languages. #441 (@elalish)
• Improved dependency resolution. #523, #559 (@pca006132)
• Allow macOS 10.13 building. #577 (@pca006132)

Examples

• Added a convertFile utility. #407 (@elalish)
• Built make-manifold page to test Merge and EXT_manifold. #428 (@elalish)
• Fixed CGAL perf test. #575 (@sloriot)

ManifoldCAD.org

• Added GLTFNode and GLTFMaterial for scene hierarchy, vertex property, and material output. #438 (@elalish)
• Made robust to library crashes. #442 (@elalish)
• Added 3MF export. #500, #505, #517 (@pca006132, @elalish)

v2.1.0

This is a significant update, primarily centered on replacing MeshRelation with MeshGL, which accomplishes the goal of maintaining material properties across operations much better and with a simpler, more performant API. I'm not considering this a breaking change, as MeshRelation turned out to be broken enough that I doubt it was getting much use anyway. For the WASM build on npm, this is definitely a breaking change as we've updated its API more significantly and switched to an ES6 module. This brings us up from v1.0 to v2.1 to keep a consistent version from now on.

New Features

• Added MeshGL. #269 (@stewartoallen, @elalish)
• Handle arbitrary properties in MeshGL. #290 (@elalish)
• Added transform relations to MeshGL. #315 (@elalish)
• Added normals update to GetMeshGL. #317 (@elalish)
• Simplified Polygons type. #343 (@elalish)

WASM bindings

• Added missing declarations. #267, #320 (@jirihon, @rafern)
• Update declarations for ES6. #342, #346 (@rafern)
• Refactored bindings. #268 (@rafern)
• Added JS Mesh class. #272 (@elalish)
• Updated to ES6 Module. #322 (@elalish)
• Accept Mat4 in transform. #329 (@pca006132)

Build/CI Updates

• Added Node.js tests. #262 (@elalish)
• Added C bindings. #292, #295, #303, #306, #310, #311, #313 (@geoffder)
• Updated CI to CUDA 12. #319 (@elalish)
• Added maze benchmark to Python run. #333 (@pca006132)

Bug Fixes

• Fixed memory leak. #280 (@pca006132)
• Fixed mirroring scale. #298 (@elalish)
• Made robust to overlaps by default. #299 (@elalish)
• Fixed Python binding bug. #307 (@pca006132)
• Changed enum case to avoid macros. #325 (@elalish)
• Hash table OMP fix. #331 (@pca006132)

Examples

• Created multi-material example. #309 (@elalish)

ManifoldCAD.org

• Fixed first run problem. #281 (@elalish)
• Fixed CSS. #296 (@pca006132)
• Switched from three.js GLTFExporter to gltf-transform. #322 (@elalish)
• Added show() and only() functions for visual debug. #330, #334 (@elalish)
• Added gl-matrix to editor for vector functions. #332 (@elalish)
• Made into a fully installable PWA. #336 (@elalish)
• Fixed module interface. #348 (@elalish)

v2.0.0

Thanks to all our collaborators, we've made enormous progress on this library, including some significant updates to the API that make this worthy of a v2.0 release. Following is a non-exhaustive list of changes.

New Feature

• Added Signed-Distance Function (SDF) support. #187 (@elalish)

API Changes

• Updated API to functional style. #131, #171 (@pca006132)
• Exceptions now optional, #170 (@elalish)
• Reduced dependencies #92, #189, #190, #194 (@elalish)
• Updated MeshRelation API, #184 (@elalish)

Build/CI Updates

• Windows compatibility. #88 (@yetigit)
• Godot compatibility. #93 (@fire)
• Cross-platform CI. #103, #111, #229 (@pca006132)
• Python binding. #113, #214 (@pca006132)
• Reorganized directories, #157 (@elalish)
• Added code coverage, formatting. #132, #140, #142, #195 (@pca006132, @elalish)
• WASM build. #155, #201, #221, #224 (@makc, @pca006132, @elalish)
• Now available on npm as manifold-3d.

Bug Fixes

• Make thread-safe. #125 (@pca006132)
• Fixed degenerate removal. #137, #179 (@elalish)
• Fixed triangulator. #154, #165, #180, #182 (@elalish)

Performance Improvements

• CGAL comparison. #84 (@ochafik)
• Optimizations. #106, #150, #235 (@pca006132)
• Managed memory. #121 (@pca006132)
• Dynamic parallel backend. #126 (@pca006132)

ManifoldCAD.org

• A new CAD app is born by using <model-viewer>, #198, and monaco, #208. (@elalish, @pca006132)
• UX design. #210, #212, #222, #230 (@elalish)
• Memory management. #213 (@pca006132)
• Operations off main thread and cancelable. #239 (@elalish)
• Examples. #231, #244, #249, #251 (@elalish)