nanobanana 金属标志浮雕材质CG艺术渲染

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纳米香蕉品牌金属色调标志浮雕效果AI图像

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[BRAND NAME] + [METAL COLOR] Act as a Senior CGI Artist and Brand Identity Director specializing in premium logo materializations. Your reference aesthetic: a logo mark that appears to have been pushed outward from behind a metallic or matte surface — like a relief stamp pressed from the reverse side of a metal sheet, a hallmark embossed on luxury packaging, or a raised seal on official documents. The logo does not exist as a separate standing object placed on a surface. It exists as a raised relief, a bulge, an outward protrusion that is part of the surface itself. BRAND INTELLIGENCE SYSTEM Before executing any phase, resolve these parameters: (1) LOGO GEOMETRY — identify [BRAND NAME]'s primary icon mark in its simplest most reduced form — the mark that works at any scale, (2) COLOR PALETTE — based on [COLOR], build the full tonal system from the lightest specular highlight to the deepest shadow tone, determine if the overall mood reads warm, cool, or neutral, (3) SURFACE MATERIAL — based on [COLOR] determine the surface character: silver or grey becomes brushed or circular-grain steel, gold or champagne becomes warm brushed metal with radial grain, black becomes anodized aluminum or matte carbon fiber, white becomes matte ceramic or chalk plaster, any saturated hue becomes anodized colored metal holding the hue in lit areas and desaturating toward black in deepest shadows, (4) LIGHT DIRECTION — determine the most flattering single light angle to reveal the emboss topography — where highlights land on the raised ridge peaks and where shadows fall on the descending walls. PHASE 1: SURFACE & ATMOSPHERE The entire image is one single continuous material surface — not a background with an object placed on it, but one unified physical plane filling the entire canvas. This surface is made of the SURFACE MATERIAL resolved above. The surface has a subtle radial gradient in its lighting — brighter near the center where the embossed logo sits, gradually darkening toward all four edges as the light falls off naturally. If the material is brushed metal, the grain direction is radial or concentric — circular polishing marks emanating from the center, catching the light differently at each angle. Apply fine uniform grain texture across the entire surface at ISO 800 equivalent — this gives tactility, depth, and prevents any digital flatness. The surface must feel physical and touchable — like a metal plate, a luxury tin lid, or a premium embossed card stock you could run your finger across and feel the texture. PHASE 2: THE EMBOSS — CRITICAL The [BRAND NAME] logo mark is rendered as a full bas-relief — think of a coin, a commemorative medal, or a luxury brand stamp where the ENTIRE logo shape rises as one unified solid mass from the surface. Not just the outline. Not just the stroke path. The complete filled silhouette of the logo pushes outward from the surface as a single continuous raised form — like the head on a coin pressed from a die. The interior of the logo is NOT hollow or open. The entire logo shape — every filled area, every curve, every solid region — rises together as one piece, at a uniform height above the surrounding flat surface. The top face of this raised form is slightly convex — gently domed, not perfectly flat — so it catches the key light across its full width and creates a smooth highlight gradient from the lit side to the shadow side. The transition from the flat surrounding surface up to the raised logo form follows a smooth beveled wall — curved, not sharp — like the edge of a coin. This beveled wall catches the key light on the lit side and falls into shadow on the opposite side, creating the dimensional separation between the raised form and the flat background. Any negative spaces WITHIN the logo — such as the bite in the Apple, the interior counters of letterforms — are recessed BACK to the level of the flat surface or slightly below, creating clean negative voids within the overall raised form. These recessed areas have their own small beveled walls descending inward, catching light in reverse. The overall raised height must feel substantial — like a thick coin or a heavy embossed seal — not a shallow bump. The logo geometry must be completely faithful to [BRAND NAME]'s actual mark in correct proportions and correct silhouette. PHASE 3: LIGHTING One primary soft area light from upper-left at approximately 10 to 11 o'clock position — broad and diffused, wrapping around the curved walls of the raised ridge to create the characteristic highlight peak at the top and gradual shadow descent on the far wall. Color temperature is determined by [COLOR]: cool white light for silver, grey, and blue tones — warm amber light for gold, copper, and earth tones — neutral daylight for white and black. One very subtle fill light from lower-right at 10 to 15 percent intensity of the key — just enough to retain material detail in the deepest shadow areas of the ridge walls without lifting them enough to flatten the form. No hard shadows anywhere on the surface. No spotlight pools. No rim light. The lighting exists entirely to reveal the three-dimensional topography of the emboss — every curve, every height transition, every subtle variation in the surface. PHASE 4: TYPOGRAPHY In the lower portion of the canvas, below the embossed logo, on the same continuous surface — a minimal typographic lockup. The typography is either very subtly embossed in the same material as the surface using the same raised-ridge technique at much smaller scale, or rendered as clean flat text in the lightest tone of [COLOR] sitting just at the surface level. Element 1: [BRAND NAME]'s flat logo mark at small scale — approximately 3 to 4 percent of canvas width — as a simple flat mark, not embossed. Element 2: [BRAND NAME] wordmark in clean geometric sans-serif spaced capitals directly below the icon mark. Element 3: one short italic or light-weight descriptor line significantly smaller than the wordmark — autonomously generate a relevant subtitle for [BRAND NAME] such as a founding year, a product category, a brand division, or a core tagline. All three elements stacked vertically, centered, with generous spacing. No decorative elements. No lines or rules. Pure typographic restraint. TECH SPECS The single most important instruction in this entire prompt: the logo must read as PUSHED OUTWARD FROM the surface, rising toward the viewer, proud and raised. If the result looks like a 3D logo object floating above a background it is wrong. If the result looks like a depression or hole cut into the surface it is wrong. The correct result looks like you are holding a sheet of metal that someone pressed a die stamp against from the back — and you are looking at the front where the relief has formed. Ray Tracing enabled for accurate self-shadowing — the raised ridge must cast a real shadow onto the flat surrounding surface. No Depth of Field — the entire surface is in perfect sharp focus from edge to edge. Tone mapping: preserve highlight detail — the brightest specular on the ridge peak should be brilliant and tight but never blown out or featureless. Film grain applied uniformly across the full final render. No chromatic aberration. No lens distortion. No added vignette beyond what the surface lighting gradient naturally creates. Anti-aliasing maximum — the ridge edges must be perfectly clean. Mood: a maker's hallmark, a foundry seal, a luxury embossed cover — the quiet confidence of a brand that lets its materiality speak.