canopy-part-title

# Canopy Part Title A dense canopy of textured leaves sweeps across the frame with shallow depth of field, then parts to uncover the first headline; a second, depth-lifted batch carries the second headline past the camera. A handful of leaves stay behind on the type and keep a light breeze. Font, weight, size, letter spacing, leaf counts, sweep speed and the retained-leaf breeze are variables. Composition id: `canopy-part-title`. Duration 12 s at 30 fps, 1920×1080. ## Files - `canopy-part-title.html` (57 KB) - `assets/leaf-surface-color.webp` (64 KB) - `assets/leaf-surface-normal.webp` (136 KB) ## Install Install with `npx hyperframes add canopy-part-title`; by default the files above land under `compositions/canopy-part-title/`. Then mount the block from the host `index.html`: ```html <div data-composition-id="canopy-part-title" data-composition-src="compositions/canopy-part-title/canopy-part-title.html" data-start="0" data-duration="12" data-track-index="1" data-width="1920" data-height="1080" ></div> ``` Render with custom values by targeting the composition file directly: ```sh npx --yes hyperframes@0.8.12 render 'compositions/canopy-part-title/canopy-part-title.html' --variables '{"headline1":"Understory","headline2":"Move slowly"}' ``` ## Variables Read at runtime via `window.__hyperframes.getVariables()`; declared on the composition root as `data-composition-variables` (single-quoted attribute, plain JSON). | id | type | default | label / range | | ---------------- | ------ | --------------- | ---------------------------------------- | | `headline1` | string | `"Understory"` | Headline 1 | | `headline2` | string | `"Move slowly"` | Headline 2 | | `font` | string | `"Helvetica"` | Headline font | | `fontWeight` | number | `900` | Font weight 100–900 step 100 | | `fontSize` | number | `1` | Font size (1 = auto-fit) 0.3–2 step 0.01 | | `letterSpacing` | number | `0.01` | Letter spacing (em) -0.2–1 step 0.01 | | `background` | color | `"#020805"` | Background | | `leafCount` | number | `170` | Leaves per sweep 40–320 step 1 | | `stayCount` | number | `5` | Leaves left behind 0–20 step 1 | | `sweepSpeed` | number | `1` | Sweep speed 0.3–3 step 0.05 | | `retainedBreeze` | number | `1` | Retained leaf breeze 0–2 step 0.05 | ## Runtime contract - One paused GSAP timeline registered as `window.__timelines["canopy-part-title"]`. - Re-syncs on the `hf-seek` CustomEvent; every frame is a closed-form function of time (seeded PRNG only, no rAF loops, no Date.now). - Renderer: three.js 0.170.0, GSAP 3.14.2, Canvas 2D, Post-processing, Seeded PRNG, Shadow maps. Budget roughly 350 MB per live instance; run one at a time. - External runtime dependencies: `https://cdn.jsdelivr.net/npm/gsap@3.14.2/dist/gsap.min.js`, `https://cdn.jsdelivr.net/npm/three@0.170.0/build/three.module.js`, `https://cdn.jsdelivr.net/npm/three@0.170.0/examples/jsm/postprocessing/EffectComposer.js`, `https://cdn.jsdelivr.net/npm/three@0.170.0/examples/jsm/postprocessing/RenderPass.js`, `https://cdn.jsdelivr.net/npm/three@0.170.0/examples/jsm/postprocessing/BokehPass.js`. - Web fonts from Google Fonts: Gelasio. ## Editing rules (from the source project) 1. Keep `data-composition-variables` a single-quoted attribute with plain `"` JSON. Never save it through Studio's Design panel. 2. Do not put `<canvas>` in static markup; create it at runtime. 3. Keep every visual state a function of t; seek-safety is what makes the block renderable.