# Project cover prompts - bztmon.com Two covers to generate: **The Exploded Cluster** and **The Mirror (pull-through registry)**. Paste the block below the `---` for each one into Gemini / Nano Banana 2, generate ~4 variations, curate against the reject list, then process per "After generating". Aspect: **3:2 landscape** (existing covers are 1600 x 1074). --- ## House style block (already inside each prompt - do not paste separately) The site's covers are dark isometric hero renders: matte dark hardware, cyan and magenta edge light, a subtly circuit-etched ground plane, thin atmospheric haze, and generous empty space on one side so the card's title text has room. Unlike the learn-site scene plates, covers MAY have a ground plane and atmosphere - they are never sliced or animated. ## Reject checklist (per candidate, before you keep it) - [ ] any text, letters, numbers, logos or UI chrome anywhere in the frame (reject hard) - [ ] (!) THE GENERATOR WATERMARK - a small pale four-point star, usually bottom-right at roughly 88% width / 82% height. It is NOT house style; earlier covers shipped with it by mistake and had to be scrubbed. Check that corner on every candidate, and never ask a prompt for a "sparkle highlight" (that instruction produced a second, drawn-in star that sits on the artwork and cannot be cleanly removed) - [ ] subject clipped by the frame edge, or centred so tightly there is no negative space - [ ] colours drifting warm - the palette is cyan/magenta on near-black, no orange or gold - [ ] photographic realism or stock-render gloss (it should read as an illustration) - [ ] busy background competing with the subject - [ ] the two covers looking like the same object (they must be distinguishable as a pair) ## After generating 1. Keep the best of each, name them `exploded-cluster.png` / `mirror-registry.png`. 2. Convert and place (from the repo root, on the box with the site checkout): ``` # full-size cover: 1600px wide ffmpeg -y -i exploded-cluster.png -vf "scale=1600:-2" -q:v 80 public/covers/exploded-cluster.webp ffmpeg -y -i mirror-registry.png -vf "scale=1600:-2" -q:v 80 public/covers/mirror-registry.webp # card thumbnail: 640px wide ffmpeg -y -i exploded-cluster.png -vf "scale=640:-2" -q:v 80 public/covers/thumb/exploded-cluster.webp ffmpeg -y -i mirror-registry.png -vf "scale=640:-2" -q:v 80 public/covers/thumb/mirror-registry.webp ``` 3. Both project files already reference these names (`cover: "exploded-cluster"`, `cover: "mirror-registry"`), so the cards pick them up on the next build. --- # PROMPT 1 - The Exploded Cluster Dark isometric technical illustration in a cinematic sci-fi engineering style, 3:2 landscape. Near-black background, hex #070b14, with a faint dark circuit-etched ground plane beneath the subject and a thin drift of atmospheric haze in the upper right. Matte dark metal and smoked glass surfaces with glowing neon edge lighting: primary cyan #3fbaf5, secondary magenta #e879f9, cool white rim highlights. Even studio lighting, no lens flare, no depth-of-field blur. ABSOLUTELY NO text, letters, numbers, logos, labels, arrows or UI elements anywhere in the image - surface markings must be abstract geometric patterns only. The subject: a single machine caught mid-explosion, its layers separated vertically like an engineering teardown diagram, floating apart with clear gaps of void between them. From the bottom up: a heavy dark chassis base with cyan-lit vents; above it a thick slab housing rows of small identical cells; above that two thin translucent glass sheets etched with fine circuit tracery, glowing faintly cyan; and at the top, held well clear of everything else, a small bright magenta-lit cube - the smallest and most luminous part, clearly the payload the whole machine exists to carry. The parts hover in stable formation rather than flying apart violently - a considered teardown, paused for inspection. Composition sits left of centre, leaving open dark space on the right third of the frame. --- # PROMPT 2 - The Mirror (pull-through registry) Dark isometric technical illustration in a cinematic sci-fi engineering style, 3:2 landscape. Near-black background, hex #070b14, with a faint dark circuit-etched ground plane beneath the subject and a thin drift of atmospheric haze in the upper left. Matte dark metal and smoked glass surfaces with glowing neon edge lighting: primary cyan #3fbaf5, secondary magenta #e879f9, cool white rim highlights. Even studio lighting, no lens flare, no depth-of-field blur. ABSOLUTELY NO text, letters, numbers, logos, labels, arrows or UI elements anywhere in the image - surface markings must be abstract geometric patterns only. The subject: a wide, low, heavily-armoured way-station machine sitting on the ground plane, right of centre - a bunker-grade cache with a glass-fronted shelf running along its face, holding a row of small identical luminous cyan bricks in cold storage. Its face has a single broad output aperture ringed in cool white light, aimed left. Above and behind it, arranged in a loose arc receding into the haze, five small dark intake pods at clearly diminishing scale - each a compact rounded capsule with one cyan-lit aperture, each floating alone with generous void between them, none touching the main machine. They read as five distant sources feeding one local shelf. Below and left of the way-station, close to the ground plane, a single luminous cyan brick hovers in mid-transfer - small, bright, clearly in motion toward the viewer's side of the frame, the one thing the whole arrangement is delivering. Composition sits right of centre, leaving open dark space on the left third for title text.