[BRAND NAME = ______________]
[BACKGROUND COLOR = _____]
Cre
GPT Image 2品牌与Logo

[BRAND NAME = ______________] [BACKGROUND COLOR = _____] Create a square 1:1 experimenta…

GPT Image 2 提示词与真实图片案例

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提示词
[BRAND NAME = ______________] [BACKGROUND COLOR = _____] Create a square 1:1 experimental studio CGI visualization of the authentic official symbol of [BRAND NAME], translated into a shallow tensioned-metal membrane: a continuously warped blackened mirror-metal surface defined by asymmetric convex peaks, deep concave valleys, saddle-like junctions, pinched reflective ridges and sparse razor-bright specular ribbons. BRAND ACCURACY Automatically identify the most recognizable authentic official standalone symbol of [BRAND NAME]. Preserve its canonical silhouette, proportions, stroke relationships, curves, intersections, counterforms, internal negative spaces and component spacing. Do not redesign, simplify, combine or reinterpret the identity. If the official mark contains separated components, preserve their authentic structure and placement. Use the official wordmark only when no recognizable standalone symbol exists. Ignore native brand colors. Apply the fixed form and material system below. CORE TRANSFORMATION Do not treat the logo as a flat graphic that has simply been extruded, beveled or coated in chrome. Treat the authentic 2D boundaries of the logo as structural constraints for a continuous metallic deformation field. Transform the interior geometry into a shallow tensioned membrane whose surface is locally pulled toward and away from the camera. The original logo must remain immediately recognizable from its silhouette and internal topology, but its surface should behave like thin rigid metal subjected to controlled tension: stretched, pinched, swollen and drawn inward at selected structural regions. Keep overall physical depth shallow, approximately 8–15% of the average local stroke width. Strong dimensionality must come from surface-normal variation rather than thick extrusion. There must be no single uniform cross-section. Different regions should transition between: — broad shallow convex areas; — narrow raised specular ridges; — deep smooth concave channels; — hyperbolic saddle surfaces; — stretched valleys; — pinched junctions; — compressed cusps; — locally flattened tension zones. These changes must arise from the authentic geometry of the mark. Do not add arbitrary decorative geometry. DEFORMATION FIELD This is the defining feature of the image. Within each stroke, enclosed region or structural junction, create a smooth but uneven tension field. Avoid making every stroke into a rounded tube. Allow the highest ridge to drift away from the geometric centerline. One side of a stroke may remain broad and shallow while the opposite side drops rapidly into a dark concavity. At intersections, overlaps and close structural relationships, let adjacent curvature fields interact. Surfaces should flow into one another through saddle-shaped transitions rather than appearing as independent extruded parts. Important intersections may form concentrated stretched nodes where several curved surfaces converge into one bright pinched ridge surrounded by darker concave areas. For solid logo shapes, treat the entire silhouette as one stretched metallic skin rather than one inflated blob. For linear logos, preserve individual authentic strokes but deform their internal cross-sections asymmetrically. For wordmarks, preserve canonical typography exactly while applying the deformation field inside each authentic letterform. For complex illustrative symbols, preserve the authentic visible topology and transform its existing masses and lines into the same continuous tension system; do not invent a simplified substitute symbol. CROSS-SECTION AND EDGE ARCHITECTURE Do not construct the object from a recognizable front face, bevel and sidewall. There should be no visible conventional extrusion topology. No identifiable bevel band. No uniform chamfer. No separate flat face. No obvious vertical sidewall. Instead use one continuous warped cross-section: compressed outer edge → steep curved descent or rise → asymmetric interior ridge or valley → opposing curved transition → compressed edge. The perimeter may locally become extremely thin and optically sharp, but it must remain part of the same continuous surface. Where curvature fields naturally converge, allow selected regions to terminate in extremely narrow cusps or pinched ridges. These sharp regions must result from surface tension, not decorative spikes. Some contours may produce hairline reflections while adjacent sections almost disappear into darkness. CONTROLLED GEOMETRIC IRREGULARITY The object must not feel mathematically uniform or conventionally CAD-beveled. Introduce restrained asymmetry in the deformation: — unequal curvature between neighboring regions; — off-center ridges; — varying compression along one contour; — localized stretched surfaces; — subtle differences in apparent thickness; — irregular but smooth tension around intersections. The surface itself remains perfectly polished and clean. No surface damage, noise or rough sculpting. All irregularity comes from geometry. MATERIAL Use blackened mirror-polished nickel-chrome / smoked silver metal. The underlying material must appear predominantly charcoal, graphite and near-black. Do not make the object visually bright silver overall. Approximate visual balance across the object: 60–75% deep black / graphite reflection; 15–30% dark-to-middle silver; 5–10% intense near-white specular reflection. Metallic response: fully metallic. Primary roughness approximately 0.025–0.06 on highly polished regions, with restrained local variation up to approximately 0.10 inside selected dark curved areas. Use physically accurate Fresnel behavior and strong grazing-angle reflections. No brushed grain. No machining marks. No scratches. No hammered texture. No fingerprints. No surface bump. No glitter. No pearlescence. The surface should feel dense, cold, rigid and perfectly smooth. Its tactile richness comes entirely from changing curvature and reflected light. SHADING Do not rely on diffuse shading to describe the object. The metal should receive extremely little visible diffuse illumination. Form must be revealed primarily by the interaction between curved surface normals and the reflection environment. Convex or tilted areas may catch silver-white reflections. Surfaces turning away from the reflection cards should fall rapidly into charcoal or almost pure black. Concave regions should frequently become darker than surrounding surfaces. At selected tension nodes, bright reflections may compress into concentrated white knots or narrow streaks. Avoid smooth evenly distributed chrome gradients. The transition between reflection states should often be abrupt: near-white → silver → graphite → near-black. LIGHTING AND REFLECTION CHAMBER Treat the scene as a dark controlled reflection chamber rather than a normally illuminated product studio. The visible appearance of the sculpture must be generated mostly by black reflection cards and a very small number of precisely shaped white sources. Use one large elongated neutral-white strip source positioned above and slightly forward of the object. Its main purpose is to create one or several long flowing white reflection ribbons across selected upward-facing curvature. Add a second narrower elongated white source from upper-left or left, positioned to create another isolated curved highlight along selected outer surfaces. Optionally use one extremely narrow weak strip from an opposing angle to generate occasional hairline specular edges. Keep direct frontal illumination extremely low. Surround the object outside the camera frame with extensive matte-black flags. Most directions reflected by the metal should therefore appear black. The reflection system should produce: — large near-black areas; — isolated broad silver bands; — narrow high-energy white ribbons; — hairline white edge reflections; — dark concave channels; — occasional concentrated specular nodes. Do not illuminate every edge. Do not create a continuous luminous p
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