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

/** Spawn: park every filing at its home (zero offset), scattered starting angle, zero spin. */
export declare const filingsInitKernel: import('typegpu').TgpuFn<(i: d.U32) => d.Void>;
/**
 * The integrator: the nematic align-to-field torque plus the weak rest-orientation torque,
 * folded in that order, with the orientation-family integrator owning the angular drag, the
 * |ω| activity envelope, and the gentle position dynamics (field pull + spring home + clamp).
 */
export declare const filingsUpdateKernel: (i: number) => void;
export declare const makeFilingsSplatKernel: (shape: string) => (i: number) => void;
export declare const makeFilingsResolveKernel: (mode: number) => (x: number, y: number) => void;
export declare const filingsSplatKernel: (i: number) => void;
export declare const filingsResolveKernel: (x: number, y: number) => void;
export interface ComponentProps {
    /**
     * Number of iron filings
     *
     * Accepts a number between 500 and 12000.
     * @default 8000
     */
    count: number;
    /**
     * The magnetic field the filings reveal — a dipole (bar-magnet lobes that follow the cursor
     *
     * Accepts one of: `"dipole"`, `"radial"`.
     * @default "dipole"
     */
    fieldType: string;
    /**
     * How strongly the magnet grips the filings — higher snaps more of them into sharp alignment
     *
     * Accepts a number between 0 and 3.
     * @default 1.7
     */
    strength: number;
    /**
     * How briskly filings swing and settle — low is loose and floppy with a long wobble, high snaps into place quickly
     *
     * Accepts a number between 0 and 1.
     * @default 0.5
     */
    response: number;
    /**
     * How far the magnet
     *
     * Accepts a number between 0.1 and 1.
     * @default 0.6
     */
    reach: number;
    /**
     * Which way filings point where the field can
     *
     * Accepts one of: `"random"`, `"horizontal"`, `"vertical"`.
     * @default "random"
     */
    restOrientation: string;
    /**
     * How each filing is drawn — a slim streak or arrow reads as a compass needle, a box as a chunky filing, a dot or soft glow for a finer grain
     *
     * Accepts one of the predefined option values.
     * @default "dot"
     */
    shape: string;
    /**
     * Size of each filing
     *
     * Accepts a number between 0.5 and 3.
     * @default 1
     */
    size: number;
    /**
     * Color of filings resting quietly, aligned and still
     *
     * Accepts hex strings (`#ff0000`), RGB objects (`{ r, g, b }`), or CSS color names (`limegreen`).
     * @default "#be1ef9"
     */
    colorA: Parameters<typeof transformColor>[0];
    /**
     * Color filings flash toward as they swing and settle — a wave of it follows the moving magnet
     *
     * Accepts hex strings (`#ff0000`), RGB objects (`{ r, g, b }`), or CSS color names (`limegreen`).
     * @default "#6326ff"
     */
    colorB: Parameters<typeof transformColor>[0];
    /**
     * Color space for the rest→excited color ramp
     *
     * Accepts one of the predefined option values.
     * @default "oklab"
     */
    colorSpace: string;
}
export declare const componentDefinition: GpuShaderDefinition<ComponentProps>;
export default componentDefinition;
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