I need a highly realistic 3D tween animation of a swimmer covering a full lap in a standard pool environment. The final motion must read as authentic—fluid shoulder rotation, proper kick timing, and natural buoyancy shifts—so that viewers instantly recognize real-world biomechanics. Scope • Primary stroke: freestyle, but once that loop is approved I may add breaststroke or butterfly in a follow-up pass. • Setting: a clean, textured swimming-pool lane with subtle caustics and surface ripples; I only need enough environmental detail to sell reflections and refractions around the character. • Length: a seamless 8-10 s loop suitable for continuous playback. Deliverables 1. High-quality final animation in FBX or Alembic, ready for import into Unity/Unreal. 2. Original scene files (Blender, Maya, or 3ds Max) with non-destructive rigs and keyframes intact. 3. One playblast or hardware preview showing timing before final render. Acceptance criteria • Joint rotations stay within anatomical limits; no mesh deformation or interpenetration. • Stroke cycle loops perfectly when placed back-to-back. • Pool water interaction—splashes, wake, and light caustics—matches the swimmer’s timing without visible popping. If anything here needs clarification, let me know before you begin so we can keep revisions minimal and stay on schedule.