「15-LECIE POLONII」は FontVibe AI で作成したガラスの文字エフェクトです。光を屈折させる透明な光学ガラスの大文字。明るい縁のハイライトとコースティクスが、緑青のオーロラの空の下、暗い面に映り込みます。

sculpted from high-clarity optical glass — letters cast from pure transparent glass with intense light refraction through the material body. Brilliant caustic light patterns projected below each letter. Sharp specular highlights trace the letter edges where glass thickness transitions. Slight organic surface tension gives letterforms a subtle liquid-pulled quality at terminals and curves. Deep internal optical depth visible through the glass. Purely transparent — no frosting, no color tinting, no opacity. LETTERFORM PRIORITY: when the chosen font carries its own treatment, that font's letterform shapes take priority and own the letters; this style governs the optical-glass material, the refraction and the caustics. FALLBACK MATERIAL: if the font carries no material of its own, render the letters as high-clarity transparent optical glass with intense refraction, sharp edge specular highlights and bright caustic patterns cast below. COLOR PRIORITY: keep the font's own colors if specified; otherwise pure clear glass with no tint. Render the exact text “15-LECIE POLONII” as a commemorative optical-glass title, with “15” carrying dominant scale and “-LECIE POLONII” following in a measured secondary rhythm. Each character is cast from pure high-clarity transparent glass, with deep visible optical thickness, crisp polished planes, subtly liquid-pulled transitions at curves and terminals, and no pigment, frosting, metallic coating, or opacity. A pale lavender-to-cornflower-blue studio gradient passes visibly through the glass bodies, bending and slightly magnifying behind each stroke. Broad diffused backlight reveals internal refraction; narrow white specular lines trace every thickness change and outer edge. Bright ray-traced caustic pools, fractured light ribbons, and soft prismatic highlights spread across a clean glossy acrylic surface beneath the title. Include restrained ceremonial atmosphere through ample clean negative space, immaculate exhibition-grade surface finish, and a faint translucent glass halo produced only by refracted light. Use physically accurate optical rendering, high-resolution product-photography detail, soft ambient fill, controlled reflections, and no additional words, symbols, flags, dates, or decorative objects.