import type { DataArrayTexture } from 'three/webgpu';
import type { TSLFloatInput, TSLFloatNode, TSLUniformNode, TSLVec2Node, TSLVec3Node, TSLVec4Node } from '../types/tsl.js';
import type { BakedMotionFrameSample } from '../BakedMotion/BakedMotionManifest.js';
type BakedMotionLayerNodes = [
    TSLUniformNode<'int', number>,
    TSLUniformNode<'int', number>,
    TSLUniformNode<'int', number>,
    TSLUniformNode<'int', number>
];
type BakedMotionWeightNodes = [
    TSLUniformNode<'float', number>,
    TSLUniformNode<'float', number>,
    TSLUniformNode<'float', number>,
    TSLUniformNode<'float', number>
];
/**
 * Four-tap GPU sampler for preloaded Baked Motion texture arrays. The temporal codec is
 * decoded once at load; interaction then changes eight tiny uniforms (four layers/weights).
 *
 * @class BakedMotionNode
 * @category TSL
 */
export declare class BakedMotionNode {
    albedoTexture: DataArrayTexture | null;
    depthTexture: DataArrayTexture | null;
    layers: BakedMotionLayerNodes;
    weights: BakedMotionWeightNodes;
    blendNode: TSLFloatNode;
    node: TSLVec4Node;
    rgb: TSLVec3Node;
    alphaNode: TSLFloatNode;
    r: TSLFloatNode;
    constructor(albedoTexture: DataArrayTexture, depthTexture?: DataArrayTexture | null);
    /** Bilinearly blend four array layers at an arbitrary UV node. */
    sample(arrayTexture: DataArrayTexture | null, uvNode: TSLVec2Node): TSLVec4Node;
    sampleColor(uvNode: TSLVec2Node): TSLVec4Node;
    /** Sample one of the four currently assigned physical taps without its blend weight. */
    sampleSlot(arrayTexture: DataArrayTexture | null, slot: number, uvNode: TSLVec2Node): TSLVec4Node;
    sampleColorSlot(slot: number, uvNode: TSLVec2Node): TSLVec4Node;
    sampleDepth(uvNode: TSLVec2Node): TSLFloatNode | null;
    sampleDepthSlot(slot: number, uvNode: TSLVec2Node): TSLFloatNode | null;
    /** Reuse the repository POM raymarch with the four-tap depth signal as its height source. */
    parallax(uvNode?: TSLVec2Node, scale?: TSLFloatInput): TSLVec3Node | null;
    /** Apply a result from `paramToFrame` (one-dimensional or four-corner). */
    setSample(sample: BakedMotionFrameSample): this;
    dispose(): void;
}
export {};