# V97 RC16 · Pose Motion Runtime Fallback

RC16 is the first connection between the curated pose-sequence prototype and the live pass player.

## User-facing behavior

A new pass menu toggle exists:

- **Motion fallback**

When this is turned on, the pass player can show the Bildadmin pose sequence for an exercise whenever normal video playback falls through to an exercise visual fallback.

## Data source

The runtime reads:

```text
assets/data/image-admin/pose-sprite-library.json
assets/data/image-admin/exercise-pose-sequences.json
```

The service uses the same path convention as Bildadmin:

```text
assets/img/exercises/pose-sprites/library/<poseKey>.webp
```

## Current seeded sequence examples

- `linear-pogos`
- `bear-crawl`
- `push-up`
- `burpee`
- `goblet-squat`
- `single-arm-row`

## Rendering model

- fixed 16:9 media stage
- 3/4/5 slot logic from sequence layout
- shared floor baseline
- per-pose X/Y/scale transforms
- app-owned arrows as overlay
- theme background behind poses

## Not done in RC16

- no full pass runtime replacement
- no autoplay pose animation timing yet
- no runtime editor in pass screen
- no destructive pose cleanup
- no new generated images

## Next likely step

RC17 should focus on runtime polish if RC16 feels good:

- optional simple loop/step animation
- smoother fade/ghosting between poses
- compact motion fallback badge
- mobile/iPad tuning
- decide whether Motion fallback should default on for projector/YouTube-blocked mode