Rising embers

Glowing orange sparks that float upward from the bottom of the frame and pulse as they go. Fire, forge, campfire and dramatic action moments.

Apply this to my video: "Rising embers" from the 24fps video editor library.
Preset JSON: https://24fps.dev/video-editor/effects/embers-rise-orange-cae1/preset.json (pass its "preset" to the engine).
Engine (MIT, no dependencies, ES module): https://24fps.dev/editor/engine.js. Download the engine next to your page (curl -O) rather than importing cross-origin, then import { mount } from "./engine.js" in a <script type="module"> served over http.
Wiring: root = a position:relative box at the video's size. media = { main }: main is a wrapper holding my video, filling the root. Then const fx = mount(root, { kind: "effect", preset, media }) and call fx.render(seconds) every frame. It is seek-safe: drive it from the GSAP timeline in HyperFrames or call render(frame / fps) in Remotion. Before capturing frames, await (fx.ready ?? document.fonts.ready).
Field reference: https://24fps.dev/video-editor/llms.txt. Keep sizes as fractions of the frame height so it works at any resolution. Credit: 24fps.dev/video-editor

Same idea: Also called: Rise in Ember
Technique: Recreated from a popular video editor's effect panel
Footage: Man talking to camera, Pexels

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