import { GpuShaderDefinition } from '../../gpu/porters';

export interface ComponentProps {
    /**
     * Which pixel value decides how far a pixel is thrown
     *
     * Accepts one of: `"luminance"`, `"darkness"`, `"red"`, `"green"`, `"blue"`.
     * @default "luminance"
     */
    throwKey: string;
    /**
     * Maximum distance pixels can be thrown
     *
     * @default 0.25
     */
    strength: number;
    /**
     * How much the chosen value modulates throw distance (0 = all pixels thrown equally, 1 = only high-value pixels move)
     *
     * @default 0.8
     */
    keyInfluence: number;
    /**
     * Size of the cursor
     *
     * @default 0.2
     */
    radius: number;
    /**
     * How quickly thrown pixels settle back to their origin (0 = float almost forever, 1 = snap back fast)
     *
     * @default 0.3
     */
    friction: number;
    /**
     * How much the thrown flow keeps drifting and swirling after the cursor passes (fluidity)
     *
     * @default 0.5
     */
    momentum: number;
    /**
     * How to handle pixels thrown beyond the canvas edges
     *
     * Accepts one of: `"stretch"`, `"transparent"`, `"mirror"`, `"wrap"`.
     * @default "stretch"
     */
    edges: string;
}
/**
 * Bicubic B-spline tap setup for the GRID×GRID flow texture — the kit primitive, instantiated for
 * this grid size and named as it always was so the emitted WGSL is unchanged. See
 * `kit/sampling.ts` for why a low-resolution displacement field needs a C1 reconstruction (short
 * version: hardware bilinear is C0, so the field kinks at every cell border and a sharp child edge
 * dragged across it scallops).
 */
declare const PixelThrowBicubicTaps: import('typegpu/data').WgslStruct<{
    uvA: import('typegpu/data').Vec2f;
    uvB: import('typegpu/data').Vec2f;
    uvC: import('typegpu/data').Vec2f;
    uvD: import('typegpu/data').Vec2f;
    w: import('typegpu/data').Vec4f;
}>, pixelThrowBicubicSetup: import('typegpu').TgpuFn<(uv: import('typegpu/data').Vec2f) => import('typegpu/data').WgslStruct<{
    uvA: import('typegpu/data').Vec2f;
    uvB: import('typegpu/data').Vec2f;
    uvC: import('typegpu/data').Vec2f;
    uvD: import('typegpu/data').Vec2f;
    w: import('typegpu/data').Vec4f;
}>>;
export { PixelThrowBicubicTaps, pixelThrowBicubicSetup };
export declare const componentDefinition: GpuShaderDefinition<ComponentProps>;
export default componentDefinition;
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