athletic male 3d model

[Task: Ultra-High Fidelity 3D Character Generation] [Prompt: A professional-grade, photorealistic 3D model of a lean, athletic adult human male, designed for high-end military role-play. The character is in a clean, symmetrical **A-pose** (arms at 45 degrees, fingers slightly curled, legs straight), optimized for precise Mixamo humanoid rigging. Features idealized **8-head proportions** with detailed anatomical muscle definition. The skin is a high-fidelity **PBR (Physically Based Rendering)** material, showcasing realistic skin micro-textures, subtle pores, and natural subsurface scattering. He is wearing a neutral, tight-fitting charcoal grey tactical compression base-layer (shirt and shorts) that defines the body shape without obscuring joints. The face is symmetrical with calm, lifelike features and high-detail eyes. The mesh is a clean, manifold geometry, optimized for real-time web performance in Three.js. Cinematic lighting, 8k resolution textures, masterpiece quality.]