「BLOOD BAG」は FontVibe AI で作成した血のしたたるフォントの文字エフェクトです。濡れた暗赤色の表面を持つ太い深紅の文字。長い血の滴は丸い粒で終わり、横からの光を受けて真っ黒な背景に浮かびます。

Thick crimson blood saturating every surface — viscous, high-density fluid with authentic physical behavior: large tear-shaped drops suspended at each drip terminus with surface tension visible at the meniscus, connecting streams thinning as they extend downward, deep near-black pooling where blood accumulates. Material properties: subsurface scattering gives deep red glow when backlit, specular gloss on convex drip surfaces catching directional light, matte-dark at clotted pooling zones. Blood color gradient from bright arterial red (#CC0000) at active drip streams to near-black clot (#3D0000) at base pools. Gravity-driven physics — every drip pulled downward with anatomically accurate tension. Horror film practical effects quality — not painted, not stylized, photorealistic blood. 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 viscous blood fluid physics, the suspended drips and the pooling. FALLBACK MATERIAL: if the font carries no material of its own, render the letters as viscous crimson blood letters with tear-shaped drops held by surface tension, thinning connecting streams and near-black pooling. COLOR PRIORITY: keep the font's own colors if specified; otherwise arterial red (#CC0000) grading to near-black clot (#3D0000). The rendered text “BLOOD BAG” dominates a pure black clinical void, surrounded by sparse suspended micro-droplets and a faint floor-level haze. Preserve the font’s inherent letterform construction and color treatment where present, then coat every face, inner counter, edge, and lower contour with thick high-density blood. Fresh active streams show arterial crimson #CC0000, with glossy convex surfaces, wet specular highlights, and deep red subsurface scattering where a narrow cold backlight passes through thin fluid. Gravity pulls substantial drips from the lowest edges: wide saturated sources taper into stretched connecting filaments, each ending in heavy tear-shaped drops with sharply visible surface-tension menisci. Blood accumulation becomes matte near-black clot #3D0000 in recessed joins and beneath the text, forming dense uneven pools with dark brown-red coagulated margins. A few translucent fluid streaks catch the light across the letter surfaces; no paint texture, no cartoon treatment. Directional cold red side light from one side carves hard glossy reflections into the freshest drips while leaving opposite contours swallowed by black shadow. Photoreal practical-effects blood, macro material detail, ray-traced wet reflections, high contrast, deep black negative space, horror title-card finish.