import { GpuShaderDefinition } from '../../gpu/porters';
import { transformColor } from '../../utilities/transformations';

/**
 * KeyFrames — a real MOTION TRACKER, the After Effects sibling of ObjectTracker. Trackers latch
 * onto content (bright / dark / colored / opaque features) and PURSUE it as it moves, dropping
 * keyframe diamonds behind them along their motion paths.
 *
 * The whole shader is two std recipes: the kit's tracker-pursuit sim (a feature-grid scoring
 * pass + a per-tracker mean-shift pursuit kernel over the feedback-trail scaffold) feeding the
 * motionTrackerHud fragment (the runtime tracker loop with per-tracker AABB culling, trail-ring
 * stamps and the bracket gizmo over the shared overlay vocabulary).
 */
export interface ComponentProps {
    /**
     * Number of simultaneous trackers.
     *
     * @default 12
     */
    trackers: number;
    /**
     * What the trackers hunt for.
     *
     * Accepts one of: `"bright"`, `"dark"`, `"alpha"`, `"red"`, `"green"`, `"blue"`.
     * @default "bright"
     */
    detect: string;
    /**
     * Feature floor — content scoring below this doesn
     *
     * Accepts a number between 0 and 0.9.
     * @default 0.15
     */
    threshold: number;
    /**
     * Spread of tracker preferences — 0 hunts only the strongest features, 1 distributes trackers across the whole brightness range.
     *
     * @default 0.8
     */
    variance: number;
    /**
     * How fast trackers travel and how wide they search.
     *
     * @default 0.5
     */
    agility: number;
    /**
     * Seconds a tracker follows its target before retiring and reacquiring elsewhere. 0 = track forever.
     *
     * @default 6
     */
    lifespan: number;
    /**
     * Visibility of the keyframe trail each tracker leaves behind.
     *
     * @default 1
     */
    trail: number;
    /**
     * Tracker gizmo size in pixels.
     *
     * Accepts a number between 8 and 80.
     * @default 28
     */
    markerSize: number;
    /**
     * Stroke width in pixels.
     *
     * Accepts a number between 0.5 and 6.
     * @default 1.5
     */
    lineWidth: number;
    /**
     * Tracker gizmo color.
     *
     * Accepts hex strings (`#ff0000`), RGB objects (`{ r, g, b }`), or CSS color names (`limegreen`).
     * @default "#54d66b"
     */
    markerColor: Parameters<typeof transformColor>[0];
    /**
     * Keyframe diamond color.
     *
     * Accepts hex strings (`#ff0000`), RGB objects (`{ r, g, b }`), or CSS color names (`limegreen`).
     * @default "#ffcf33"
     */
    keyframeColor: Parameters<typeof transformColor>[0];
    /**
     * Motion path color.
     *
     * Accepts hex strings (`#ff0000`), RGB objects (`{ r, g, b }`), or CSS color names (`limegreen`).
     * @default "#ffffffb8"
     */
    pathColor: Parameters<typeof transformColor>[0];
}
export declare const componentDefinition: GpuShaderDefinition<ComponentProps>;
export default componentDefinition;
//# sourceMappingURL=index.d.ts.map