3D Model: 以下是针对L型沙发3D模型设计的3ds Max建模与Blender渲染的AI提示词及设计要点，兼顾专业性与软件特性： AI提示词（用于生成设计方向） "Create A Photorealistic L-shaped Sofa 3D Model With 3ds Max, Featuring Organic Curved Armrests, High-density Foam Cushions With Subtle Stitch Details, And A Wooden Frame With Chamfered Edges. Use Quad-based Topology For Smooth Subdivision, 8-12 Edge Loops Per Cushion For Natural Draping. For Blender Render: Fabric Texture With Noise Map For Weave Detail, Leather Option With Subsurface Scattering, Ambient Occlusion Lighting, Soft Shadows From Floor Lamp, Modern Living Room Environment With Concrete Walls And Large Window. 4K Resolution, Cycles Render, PBR Materials, Realistic Depth Of Field." 3ds Max建模核心要点 1. 结构拆分： ◦ 主体框架：用Box建模+Chamfer（倒角）生成木质/金属框架，分段数4-6段保证弧度平滑； ◦ 坐垫/靠背：Poly建模，通过Extrude（挤出）+Taper（锥化）模拟海绵蓬松感，每块坐垫预设8-10条Edge Loop（边循环）控制褶皱； ◦ 扶手：L型转角处用Bridge（桥接）连接，添加Turbosmooth（涡轮平滑）修改器，Iterations=2。 2. 细节处理： ◦ 缝线：用Editable Poly的Edge层级添加Chamfer，或用Splines绘制缝线路径+Bevel Profile生成立体线条； ◦ 靠垫：创建独立圆柱体/椭球体，添加Rel