「Winter Spirit Week」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. Portrait 3:4. Render the exact text “Winter Spirit Week” as the central hero composition, arranged across three balanced lines with Winter dominant, Spirit slightly smaller, Week poised beneath. The lettering is sculpted from pure, high-clarity transparent optical glass, with a delicate liquid-pulled tension along terminals and curves while retaining the externally chosen letter shapes. Cool daylight passes through the thick glass bodies, creating deep internal optical depth, crisp refracted distortions, and needle-fine white specular glints along every thickness transition. A pale lavender-blue winter sky gradient fills the background, fading into near-white at the horizon. Behind the text, out-of-focus crystalline snowflakes and faint icy window patterns drift softly without competing with the words. Below, a matte snow surface receives brilliant fractured caustic pools, prismatic ice-blue arcs, and subtle overlapping light ripples cast individually by the letters. Keep all letterforms completely clear and colorless, allowing the lavender sky and snowy atmosphere to remain visible through them with elegant optical warping. Soft diffused backlight creates a serene seasonal glow; a low side light catches glass edges and makes the composition feel crisp, celebratory, and quietly magical. Generous clean negative space surrounds the title.