FadeIn

A pure opacity fade for text. No translate, no scale, no blur — just opacity easing from 0 to 1 with the Onda house curve. The simplest possible reveal in the catalog, for moments where any other motion would say too much.

Props

Name	Type	Default	Notes
`text`	`string`	`"Onda"`	What to reveal.
`delay`	`integer ≥ 0`	`0`	Frames before the animation starts.
`duration`	`integer ≥ 1`	`DURATION.base` (18)	Frames to fully reach opacity 1.
`color`	`string`	`"#F2F2F4"`	Text color — defaults to `--onda-text`.
`fontSize`	`number`	`96`	Pixels.
`fontFamily`	`string`	`'"Clash Display", sans-serif'`	The Onda display font. Never default to Inter / Arial / system.
`fontWeight`	`number`	`600`	Font weight.
`letterSpacing`	`string`	`"normal"`	CSS letter-spacing (e.g. `"-0.02em"`, `"0.06em"`).
`lineHeight`	`number`	`1.1`	Unitless line height.
`align`	`"left" \| "center" \| "right"`	`"left"`	Text alignment.
`placement`	`Placement?`	–	Where on the canvas this sits. Region (`"center"`, `"upper-third"`, …) or `{ x, y, anchor }` in 0..1 canvas fractions. Coordinates may be negative or >1 for off-canvas.

Usage

TSX

import { Composition } from 'remotion';
import { FadeIn, fadeInSchema } from './components/onda/fade-in/FadeIn';

export const Root: React.FC = () => (
  <Composition
    id="MyFade"
    component={FadeIn}
    durationInFrames={60}
    fps={30}
    width={1080}
    height={1920}
    schema={fadeInSchema}
    defaultProps={{
      text: 'Hello',
      delay: 0,
      duration: 18,
      color: '#F2F2F4',
      fontSize: 96,
      fontFamily: '"Clash Display", sans-serif',
    }}
  />
);

Motion notes

Opacity is driven by entryFade from lib/choreography.ts, which uses SPRING_SMOOTH to drive opacity 0→1. Never raw linear for tracked motion.
Duration defaults to DURATION.base (18 frames ≈ 0.6s at 30fps).
No translate, no scale, no blur — intentionally. When the surrounding scene already carries motion, a pure fade is the right restraint.
entryFade clamps at both ends — the component is correct on frame 0 and on any frame past delay + duration.