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DCC Bridge
Anonymous1769324242
03-11 23:18
Model Name
foldable lumbar cushion 3d model
Tags
furniture
rendering
realistic
Prompt
Photorealistic product design render of a foldable lumbar support cushion for elderly metro passengers. The product consists of two separate rigid components connected by a hinge system along one edge, functioning like a laptop opening at exactly 103 degrees. ─── COMPONENT 1 — SEAT CUSHION (bottom part) ─────────────────────── Rectangular pad, 37 cm long × 38 cm wide × 13 cm thick. Visible layered cross-section on one cut edge showing: - Bottom: thin dark rubber anti-slip layer (3 mm) - Next: hard structural ABS base plate (3 mm, dark navy) - Middle: firm dense foam layer (2 cm, light beige) - Center: a rounded rubber air bladder resembling a flat hot water bottle, slightly translucent amber color (6 cm thick), embedded flush inside the foam - Top: thin soft comfort foam layer (1 cm, cream white) - Outer surface: matte woven fabric in warm ash gray Two small brushed aluminum tubes visible on the inner spine edge of the seat cushion, protruding slightly — these are the hinge axis mounting points, circular cross-section, polished ends. ─── COMPONENT 2 — BACKREST (top part) ────────────────────────────── Rectangular panel, 38 cm wide × 35 cm tall. Rigid structure covered in the same matte ash gray fabric. Two brushed aluminum tubes on the inner spine edge, mirror image of the seat cushion tubes — connected via two small KOYO-style gear hinges in brushed silver metal with visible gear teeth on the inner side. In the lower half of the backrest front face: an integrated lumbar support pad — a softly protruding anatomical pillow, 26 cm wide × 14 cm tall, gently convex (5–6 cm projection at center). The fabric over the lumbar pad is slightly lighter in tone — warm light gray — suggesting softness and differentiation from the rigid frame. Subtle stitching border around the pad perimeter. On the rear face of the backrest: a clean circular vent opening, 5 cm diameter, with a precision-machined recessed aluminum ring framing it — showing the functional air channel behind. ─── HINGE & GAP ──────────────────────────────────────────────────── Along the entire inner spine where the two parts meet: two small gear hinges in brushed silver, spaced evenly across the 38 cm width. A deliberate 0.5 cm gap is visible between the seat cushion edge and the backrest edge along the spine — a clean shadow line separating the two halves. The TPU connecting tube (thin, translucent orange, 6 mm diameter) is visible running from the seat cushion through the hinge gap into the backrest — subtly suggesting the internal pneumatic system. ─── ELASTIC BAND ─────────────────────────────────────────────────── A flat elastic band, 4 cm wide, 3 mm thick, in deep terracotta (warm burnt orange). When folded: wraps once horizontally around the middle of the cushion, aligned directly over the hinge spine, held by its own tension — no buckle, no clip. Clean and minimal. ─── MATERIALS & FINISH ───────────────────────────────────────────── Main fabric: matte woven polyester, warm ash gray (like Muji neutral) Lumbar pad fabric: slightly lighter warm light gray, same texture Hinge hardware: brushed silver aluminum, mechanical precision look Elastic band: deep terracotta / burnt clay Air tube: thin translucent soft orange TPU Anti-slip base: dark charcoal rubber, slightly matte Stitching: tonal thread, barely visible, clean and straight ─── RENDER COMPOSITION ───────────────────────────────────────────── Show THREE views in one clean render layout on white background: VIEW 1 (main, large — left side of composition): The cushion open at 103 degrees, placed on a gray metro seat. Camera angle: 3/4 perspective from the front-right, slightly elevated. The lumbar pad protrudes toward the viewer. Soft warm studio lighting from top-left. Long soft shadow on seat. The gear hinges and 0.5 cm gap clearly visible on the spine. The thin TPU tube subtly visible at the hinge. VIEW 2 (top-right — medium size): The cushion folded flat (0 degrees), terracotta elastic band wrapped around the middle. Camera angle: isometric 3/4 top view. Showing the rear vent ring on the backrest back face. 8 cm total thickness clearly visible on the edge. VIEW 3 (bottom-right — smaller): The folded cushion held in one hand of an elderly person (only the hand and forearm visible, natural skin tone, age-visible). Shows scale — the cushion fits comfortably in one hand. Blurred metro station background, warm ambient light. ─── STYLE DIRECTION ──────────────────────────────────────────────── Japanese minimalist product design. Muji meets medical device. Architectural proportions. Every detail serves a function. No decorative elements, no logos, no text. Photorealistic. Studio product photography quality. 4K resolution. Soft natural shadows. No harsh reflections. Color palette: ash gray + warm white + terracotta + brushed silver.
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