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提示词方法论
2026-07-09 16:56

You are generating a profess...

提示词写作方法论,可作为生成/优化 Prompt 的结构化起点。

提示词方法论
6,49512 min
You are generating a professional e-commerce product asset series from a supplied reference image.

Your first priority is SKU consistency, not beauty, not redesign, not advertising creativity. The output must look like the exact same physical product photographed from a different angle or in a different use case. Do not create a similar product. Do not improve the industrial design. Do not simplify the geometry. Do not invent a new model.

PRODUCT DNA LOCK — MUST REMAIN IDENTICAL IN EVERY IMAGE:
The product is a compact ergonomic desktop palm support stand. It has a low, wide, rounded-rectangle charcoal-black molded plastic base, with a raised safety-orange soft-touch palm pad mounted on top. The overall footprint is long and horizontal, approximately 8.1 inches long, 5.4 inches wide, and 3.6 inches tall. The base is thick, stable, low-profile, and rectangular with large rounded corners and softly chamfered edges.

The top orange pad is the main color accent. It is an elongated rounded capsule shape, slightly convex, with soft rounded edges and fine rubber-like microtexture. It sits on top of the black body, following the body’s ergonomic curve. It must remain orange, soft-touch, matte to semi-matte, and slightly textured. It must not become red, yellow, glossy plastic, leather, fabric, foam, flat, square, circular, oversized, or undersized.

The black body is a satin-matte charcoal-black ABS-PC molded shell. It has a fine-grain plastic texture, soft broad highlights, and no metallic or mirror finish. The body forms the product’s most important silhouette: a distinctive ergonomic arch under the orange pad. From the front view, there is a large rounded rectangular opening centered under the palm pad. From side views, the body has a swept hook-like concave cutout, creating an open clearance space under the pad. The black side supports flow smoothly down into the rectangular base. This arch, hollow opening, side cutout, and flowing support shape are mandatory.

A thin clean parting line separates the orange TPE pad from the black molded body. The seam follows the orange pad edge and must remain narrow, precise, and consistent. Do not remove it. Do not turn it into a thick border, chrome trim, decorative stripe, or random groove.

A small white keep logo mark is located on the front-left top area of the black base, close to the front edge. It is small, understated, and white. It must not be centered, enlarged, repeated, moved to the orange pad, replaced by another brand, or turned into fake gibberish text. If exact text rendering is unstable, render only a small clean white brand-mark shape in the same position.

When the underside is visible, it must show four circular anti-slip foot pads near the four corners, molded reinforcement ribs, and a centered product-mark area. Do not add screws, ports, batteries, wheels, handles, buttons, hinges, lights, or mechanical parts.

REFERENCE-FAITHFUL GEOMETRY RULES:
Keep the product low and stable, not tall.
Keep the footprint rectangular with rounded corners, not oval.
Keep the black base thick enough to feel molded and durable, not a thin plate.
Keep the orange pad smaller than the black base footprint, centered along the long axis, not touching the outer edges.
Keep the central arch opening open and visible whenever the camera angle allows.
Keep the side cutout smooth, concave, and hook-like.
Keep the black-orange color separation exactly where it belongs: orange only on the top pad, black on the molded body and base.

MATERIAL AND LIGHTING RULES:
Use realistic product photography. The black body is satin-matte charcoal plastic with subtle fine texture and controlled soft highlights. The orange pad is soft-touch TPE with fine microtexture and gentle rubber-like surface behavior. Shadows must be physically plausible. The product must sit on a surface with real contact shadows. Avoid AI-rendered plastic shine, wet glossy reflections, metallic reflections, over-polished CGI, melted edges, and fake luxury styling.

SCENE AND CAMERA:
[INSERT THE REQUIRED ASSET TYPE HERE: front white-background main image / three-quarter hero shot / side structure shot / top-down view / bottom view / macro detail / lifestyle desk scene / packaging image / social media ad frame / video thumbnail.]

Use a physically plausible camera angle for that asset type. The product must be the dominant subject. Backgrounds, props, hands, packaging, desk items, or graphic space may change, but they must never cover or alter the product identity. Do not generate specification-sheet arrows, dimension labels, fake callouts, random technical text, or unreadable UI panels unless a labeled infographic is explicitly requested.

SKU CONSISTENCY CHECK BEFORE FINAL IMAGE:
Before finalizing the image, internally verify that the product still has:
1. low rounded-rectangle black base;
2. orange elongated capsule palm pad;
3. central ergonomic arch opening;
4. swept concave side cutout;
5. thin black-orange parting seam;
6. satin-matte black molded plastic body;
7. soft-touch textured orange TPE pad;
8. small white front-left keep logo mark or equivalent clean brand mark area;
9. correct long-low proportions;
10. no added fake functional parts.

If any of these identity points are missing, regenerate the image rather than making the wrong product look prettier.

NEGATIVE PROMPT:
different SKU, similar product, redesigned product, improved design, concept product, futuristic version, generic ergonomic stand, mouse, mouse pad, wrist rest pad, footrest, massage tool, phone stand, solid block, filled arch, missing arch opening, missing side cutout, wrong silhouette, oval base, square base, thin flat base, too tall, too narrow, too wide, wrong proportions, wrong color placement, red top pad, yellow top pad, blue-black body, gray metal body, glossy black plastic, mirror finish, metallic material, leather pad, fabric pad, foam pad, glass surface, missing parting line, thick decorative border, chrome trim, fake seams, wrong logo, centered logo, oversized logo, repeated logo, gibberish text, fake brand, logo on orange pad, extra screws, extra buttons, extra ports, extra wheels, extra handles, hinges, lights, random labels, fake dimension marks, callout arrows, specification sheet layout, warped geometry, melted plastic, uneven edges, distorted base, floating product, impossible shadows, over-polished CGI, AI plastic look, blurry, low detail, cluttered background, product hidden by props.