blinc_skeleton

Runtime poser for Blinc.

Consumes blinc_gltf output (GltfSkeleton, GltfAnimation), evaluates animation channels each frame, composes per-joint world transforms, and emits GPU-ready skinning matrices that feed into blinc_core::draw::SkinningData.

use blinc_gltf::load_glb;
use blinc_skeleton::Player;

let scene = load_glb(&bytes)?;
let skin = &scene.skeletons[0];
let clip = &scene.animations[0];

let mut player = Player::new(skin, clip);
player.set_looping(true);

// Each frame:
player.tick(dt);
let skinning = player.skinning_data();   // drop into MeshData::skin

For lower-level use (custom blending, procedural IK, multiple clips simultaneously), bypass Player and drive Pose directly:

use blinc_skeleton::Pose;

let mut pose = Pose::rest(&skin.skeleton);
pose.evaluate(&clip, time_seconds, skin);
let skinning = pose.skinning_data(&skin.skeleton);

What's implemented

• Pose: per-joint JointTransform (translation + quaternion + scale), world-matrix composition respecting parent links, world * inverse_bind skinning matrix computation, flatten to SkinningData { joint_matrices: Vec<[f32; 16]> }.
• Sampler: step / linear / cubic-Hermite interpolation for Vec3, Vec4 (quaternion slerp), and morph-weight scalar arrays. Cubic spline uses glTF's (in_tangent, value, out_tangent) layout.
• Player: play / pause / seek / loop / speed, per-tick pose re-evaluation, ready-to-render SkinningData.

See BACKLOG.md for blending, additive layering, IK, state machines, and morph-weight channel support.

License

Apache-2.0.