keep the entire yacht design exactly as it is do not modify yacht geometry hull proportions superstructure terraces yakamoz signage materials teak texture glass railings overall composition scene transformation convert the stern platform into a hydraulic submersible swim platform in operation the stern platform must be shown partially lowered hydraulically descending into the water rear edge already submerged teak surface interacting with seawater realistic water displacement and small ripples subtle foam along platform perimeter the personal submarine remains positioned on top of the stern platform submarine requirements centered along yacht longitudinal axis stable and secured generating correct weight compression on platform navy hull matching yacht transparent acrylic dome with realistic refraction marine satin finish mechanical realism visible stainless steel hydraulic pistons beneath platform articulated hinge mechanism at transom connection structural thickness of platform clearly engineered believable load bearing construction water interaction sunlight refracting through shallow water over teak soft caustics on submerged platform edge realistic sea transparency natural depth falloff lighting late afternoon golden light long soft shadows warm highlights on teak cool reflections on navy hull the scene must feel engineered cinematic technically credible luxurious photorealistic no stylistic reinterpretation no redesign of yacht only animate the stern platform mechanism and water interaction
