แนวทางเรนเดอร์ผิวหนังมนุษย์แบบสมจริงขั้นสูง

[Close-up portrait of a 30-year-old person with a neutral expression]. Biological skin topography with raw, authentic texture and no smoothing or airbrushing. Dermal physics with stochastic, non-uniform pore structure, coarse skin grain, and fine vellus peach fuzz along the jawline and forehead catching sharp directional rim light. Subsurface scattering featuring natural melanin variance, subtle solar lentigines, hyper-pigmentation, faint blue and green subdermal veins visible at the temples and under-eye area, and slight erythema around the nostrils. T-zone exhibits natural uneven sebaceous sheen contrasting against matte skin zones. Eyes display deep fibrous iris striations, crystalline refraction, delicate scleral vascular mapping, and pooled tear film along the lower waterline. Lips show natural vertical fissures, micro-texture, and broken specular highlights. Organic facial asymmetry and subtle topographical imperfections throughout.