human anatomy 3d model

Create a highly realistic, medically oriented 3D anatomical human male model for use in a surgical simulation game. The model must represent a realistic adult human body with anatomically plausible proportions and correct spatial relationships between structures. IMPORTANT: This must be a TRUE 3D MODEL suitable for export as GLB/GLTF/FBX/OBJ, not an image, not a sculpted render, and not a flat anatomical illustration. Build the anatomy as MODULAR, SEPARATE, IDENTIFIABLE 3D OBJECTS wherever possible so individual structures can later be hidden, revealed, manipulated, cut, damaged, or interacted with inside a Godot surgical simulator. ANATOMICAL LAYERS: 1. External skin - realistic human skin - anatomically correct body proportions - separate skin mesh - realistic thickness 2. Subcutaneous layer - subcutaneous adipose/fat tissue - superficial fascia - realistic distribution and thickness - separate mesh from skin 3. Deep fascia - deep fascial planes - connective tissue structures