Fluorescent Foam Logo Hero
A macro CGI hero image where fluorescent foam and liquid perfectly fill a brand's logo silhouette against pure black background.

Image generated by us with gpt-image-2.
Prompt
[BRAND] | [COLOR] CORE RULE: The fluid mass must take the exact shape of the [BRAND] logo — not a circle, not a blob, not an oval. The outer silhouette of the fluid IS the logo outline, identical to the canonical trademark shape. If you cover the bubble texture and look only at the silhouette, you must immediately recognize [BRAND]. This is the single most important rule and overrides everything else. Create a hero image as a macro fluid photographer and CGI art director: the brand logo formed entirely from living fluorescent foam and bubble liquid, as if poured into a logo-shaped mold on a black surface and captured at peak bubble activity. References: macro fluid photography, fluorescent paint foam art, soap bubble macro photography. PHASE 0 — LOGO GEOMETRY IS LAW: Use the 100% canonical [BRAND] logo silhouette, with every curve, angle, and proportion exactly as it would be trademarked. This silhouette acts as a rigid mold; the fluid fills its interior. The outer boundary of the fluid mass IS the logo outline, precise and hard-edged. Gaps in the logo design show pure black background. There is no container of any kind (no circle, oval, badge, or frame). Orientation must be the correct canonical upright orientation, not rotated, flipped, or tilted. There must be zero fluid, bubbles, or droplets outside the logo boundary. When fluid physics conflict with logo geometry, geometry always wins. Apply [COLOR] as the fluid foam color throughout at maximum fluorescent saturation. PHASE 1 — FLUID MATERIAL: The logo is filled with a single viscous fluid existing in two physical states simultaneously. This is not water; it is thick and surface-tension-dominant, like fluorescent soap foam or colored slime. Base color: [COLOR] at maximum fluorescent saturation, self-luminous, with a UV-reactive quality. Tonal variation stays within [COLOR] only: bubble membrane walls are 35-45% lighter and near-transparent, mid-thickness zones are pure saturated [COLOR], and deep liquid pools are 25-35% darker. The liquid surface is high gloss, wet, shiny, with a broad specular reflection. Foam membranes have lower gloss with subtle soap-film iridescence. PHASE 2 — BUBBLE ARCHITECTURE: Maintain a full size hierarchy across the foam zone only. Large anchor bubbles measure 10-18mm, with 4-8 present. Medium bubbles measure 4-9mm, with 15-25 present. Small bubbles measure 1.5-3mm, with 30-50 present. Micro bubbles measure 0.5-1mm, with 50-100+ present. Each bubble is a physically accurate air sphere inside a thin colored membrane 0.1-0.3mm thick, semi-transparent. Each dome shows a bright white crescent highlight arc in the upper-left, covering 15-20% of the dome surface, soft-edged and white. Burst holes appear as 3-8 irregular dark voids within the foam zone only, never at the logo boundary edges. PHASE 3 — DUAL-STATE CONTRAST: The left zone is in a foam state, dense and chaotic with the full bubble hierarchy, strictly contained within the logo silhouette, with no bubbles at or beyond the edge. The right zone is in a liquid state, a smooth continuous mass with bubbles absent (at most 2-3 micro bubbles at the transition edge), high gloss, with a broad soft specular highlight toward the upper-left. The transition zone is 8-15mm wide, gradual, and located at the vertical center. Both the foam and liquid sides must terminate exactly at the canonical logo outline, with a clean edge and no ragged silhouette. There must be no splatter, droplets, spray, or tendrils beyond the boundary. PHASE 4 — LIGHTING: The primary light is a large softbox positioned upper-left at 20-30 degrees from vertical, at 5500K neutral white. Left and upper-left surfaces should be brighter, with the right side relatively darker. All bubble dome highlights sit in the upper-left, and the liquid zone's specular highlight points toward the upper-left. Micro-shadows cast by bubbles fall lower-right, 0.5-1mm in size. Secondary lighting is 8-10% cool ambient light from above. There is no fill light from the right, no rim light, and no colored light. PHASE 5 — COMPOSITION: The background is absolute black with zero texture and zero noise. The aspect ratio is 1:1. The logo occupies 60-70% of the frame, centered. The camera is directly overhead, perfectly perpendicular, with zero perspective distortion and zero rotation — pure top-down macro photography. Depth of field is sharp across the entire surface. PHASE 6 — TECHNICAL SPECS: Use Houdini FLIP fluid simulation combined with Redshift or Octane rendering, or an equivalent photorealistic CGI pipeline. The fluid simulation domain is bounded by the logo silhouette and cannot escape the boundary. Each bubble should be real FLIP geometry, not a texture map. Bubble membranes use thin-shell geometry with an IOR of 1.33, transmission of 0.7-0.85, and thin-film iridescence. The liquid zone uses a smooth FLIP mesh with roughness of 0.02-0.05. The foam uses a fluorescent shader with emissive value of 0.05-0.1 and subsurface scattering of 2-4mm. The area light is 80x80cm, positioned upper-left at 20-30 degrees, at 5500K. HDRI ambient lighting is 8-10% neutral gray. Ray tracing should use 12+ bounces, with caustics enabled, sampling at 2048+, and maximum anti-aliasing. There should be no film grain and no post-processing. FINAL CHECK: (1) Does the fluid silhouette exactly match the [BRAND] logo? (2) Is it inside a container? If yes, regenerate. (3) Is there any fluid outside the boundary? If yes, regenerate. (4) Are both foam and liquid states visible? If no, regenerate.
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Editable variables
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The brand whose logo silhouette the fluorescent fluid and foam will exactly replicate.
The fluorescent base color used throughout the fluid foam and liquid mass.
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