Source: xiyu519/MotionVault@0d74e8b8948d

Author: 2026 MotionVault Contributors

Entry: src/components/effects/threeD/StackBlocks.tsx

• Converted from MotionVault (xiyu519/MotionVault, MIT, "Copyright (c) 2026 MotionVault Contributors") into a native pattern: plain HTML/CSS/JS on the design tokens, with the Web Animations API, CSS and canvas 2D as its only engines. The shipped files are the conversion; the MotionVault source files (source.paths, at source.commit) are not shipped.
• New to the library: blocks dropped on click that stack, with a tower that topples.
• Blocks are dropped one at a time by a click or the Drop block button: each falls under gravity 26 from above, lands with a small bounce (0.35) on the stack with a slightly different offset and turn, and the shadow tightens as it lands. At eight blocks the tower holds for 2.2 seconds, topples sideways and resets. Canvas 2D software 3D, no libraries. New to the library. Under reduced motion the blocks appear in place and the tower simply resets.
• Credited author: 2026 MotionVault Contributors (MotionVault, https://github.com/xiyu519/MotionVault).
• Passed the accessibility gate on 2026-10-09: hosts, render, keyboard, focus, axe, reduced, tokens, motion (scripts/ui-waves/pipeline.ts, run by scripts/motionvault/build.ts). axe-core 4: no violations at rest or after activation (WCAG 2.2 A/AA + best practice). Colour contrast is reported, not gated: passes.
• Preview recorded: previews/poster.webp, previews/preview.webm, previews/thumb.webp.

MIT License

Copyright (c) 2026 MotionVault Contributors

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

Modifications (CreativePower): converted on 2026-10-09 from xiyu519/MotionVault@0d74e8b8948d (src/components/effects/threeD/StackBlocks.tsx, src/data/effects/threeD.ts) into CreativePower's native pattern format — rewritten as plain HTML, CSS and JavaScript (no React, no animation library, no network), with its colours, fonts, spacing, corner radii and shadows on design tokens (the source's own values as fallbacks), its demo copy and icons replaced by neutral ones, and a prefers-reduced-motion rule and a visible focus style added.