Axel Meyer c3bb096b5b feat: add sample_animation with linear interpolation ...

Samples an animation at time t. Wraps t for loops. Finds the
keyframe segment containing t and linearly interpolates per-bone
angles. Returns frame with angles in degrees (intuitive for tests
and callers; internal storage uses radians).

Edge cases handled:
- t = 0 returns first-keyframe values
- t = duration returns last-keyframe values (no overshoot)
- t > duration with loop=true wraps via modulo
- Keyframes with disjoint bone-sets: each bone interpolated where
  available, snapped where only one side has it.

2026-05-17 19:55:32 +02:00

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