Compatibility & requirements

Verified playback environments

The frozen 0.1.0 r2 package was imported into four clean projects. Compilation, builds and visible 256-instance Crowd playback passed on Windows x64 / Direct3D11. These exact checks do not certify every patch, device or graphics API.

Conversion evidence

Optional adapters are supplied for Spine 4.1, 4.2 and 4.3. Install one matching official Runtime separately and obtain the applicable license. 4.1/4.2 have limited historical Built-in region-baking, numerical sampling and save/reload evidence. The included original 4.3 input completed final-package conversion and playback in Unity2022.3 Built-in. No complete version × Unity × pipeline conversion matrix is claimed.

Supported conversion scope

Fixed setup skin and attachments; one atlas texture/material; normal blending; up to four influences per vertex. Region and mesh paths are implemented, but verify your own weighted meshes visually. Static colors and alpha are captured. Bone-matrix interpolation between baked samples approximates poses and can shrink rotations.

Not preserved: deform, clipping, physics, animated attachments/draw order/slot colors/sequences, two-color tint, multiple atlas materials and non-normal blending. No runtime skin switching, event replay, animation blending or transitions. IK/transform/path results require input-specific verification.

Rendering scope

Renderer2D, Deferred, 2D Light, Lit shading, shadows and HDRP are outside scope. Mobile, WebGL, consoles, XR and other graphics APIs are unvalidated. Crowd batching does not guarantee arbitrary transparent overlap. The separately measured Built-in D3D12 performance example does not add other platform or URP performance guarantees.