import * as THREE from 'three';
import { type CharacterRenderer } from './renderer.js';
import { type Point, type ProjectPoint } from './svg-path.js';
type Snapshot = ReturnType<CharacterRenderer['snapshotScene']>;
type Vertex = {
    x: number;
    y: number;
    z: number;
    t: number;
};
/** Best-fit planar gradient, weighted by visible projected area. A curved 3D
 * surface is not exactly representable by one SVG linear gradient; this keeps
 * the authored colors and a compact, editable fill at every camera angle. */
export declare function fitGradient(triangles: {
    points: Vertex[];
}[]): {
    x: number;
    y: number;
    t: number;
    gx: number;
    gy: number;
};
/** Warp each facial outline through the same UV mesh as the live renderer.
 * This emits the artwork once instead of repeating it in every mesh triangle. */
export declare function faceProjector(face: Snapshot['face'], project: (point: THREE.Vector3) => Point): ProjectPoint;
export declare function snapshotSvg(snapshot: Snapshot, prefix?: string): string;
export {};
//# sourceMappingURL=svg-snapshot.d.ts.map