FixedMathSharp for Unity v7.0.0

This major release upgrades both Unity package variants to FixedMathSharp 7.0.0 and expands the Unity adapter layer with clearer, deterministic math, geometry, bounds, transform, frustum, and curve interop.

Highlights

• Added Unity camera and projection-matrix conversion to FixedBoundFrustum, including caller-owned plane buffers for allocation-conscious workflows.
• Added exact Unity AnimationCurve → FixedCurve conversion, explicit sampled baking for unsupported curves, and FixedCurve export back to Unity.
• Expanded interop for Vector4d, rays, planes, rectangles, bounds, matrices, and FixedTransform hierarchies.
• Corrected matrix conversion between Unity's column-vector convention and FixedMathSharp's row-vector convention.
• Added atomic Try* conversions and transform application that safely reject semantic loss or leave targets unchanged.
• Improved Unity serialization coverage for non-zero Fixed64, Vector2d, Vector3d, and Vector4d values in ScriptableObjects and prefabs.
• Published a searchable DocFX API reference and package changelog.

Breaking changes

• Vector and bounds projections now use explicit XY/XZ names such as ToVector2dXY, ToVector3dXZ, and ToFixedBoundAreaXZ.
• Transform factory methods now use CreateTransform*; removed 3×3 rotation-scale transform helpers are replaced by FixedTransform components or strict Fixed4x4 application.
• Fixed-to-Unity rays and matrix/transform application now reject non-unit directions, shear, perspective, singular matrices, and unrepresentable hierarchy conversions instead of silently normalizing or partially mutating state.
• Matrix conversions now transpose elements to preserve transform semantics. Audit code that depended on the previous direct-copy layout.
• FixedMathSharp 7.0.0 contains additional core breaking changes; review the migration guide before upgrading.

Upgrade resources

• FixedMathSharp v6 → v7 migration guide
• Unity API documentation
• Package changelog

Full Changelog: v6.0.0...v7.0.0