/**
 * Stable public entry point for the Transmission product block.
 * @module three-blocks/transmission
 */
import type * as THREE from 'three/webgpu';
import type { MeshTransmissionDitherAnchor as MeshTransmissionDitherAnchorImplementation, MeshTransmissionNodeMaterialParameters, MeshTransmissionRefractionMode as MeshTransmissionRefractionModeImplementation, MeshTransmissionViewportBufferNode as MeshTransmissionViewportBufferNodeImplementation } from './Materials/MeshTransmissionNodeMaterial.cjs';
/** Post-exit refraction model used when the backdrop has a non-zero distance. */
export type MeshTransmissionRefractionMode = MeshTransmissionRefractionModeImplementation;
/** Coordinate domain used to anchor stochastic transmission sampling. */
export type MeshTransmissionDitherAnchor = MeshTransmissionDitherAnchorImplementation;
/** Sampleable mip-aware TSL source accepted as a custom transmission backdrop. */
export type MeshTransmissionViewportBufferNode = MeshTransmissionViewportBufferNodeImplementation;
/**
 * Physical-material parameters plus the intentional transmission controls accepted at
 * construction. A custom viewport buffer is borrowed and is never disposed by the material.
 */
export type MeshTransmissionNodeMaterialOptions = MeshTransmissionNodeMaterialParameters;
/**
 * Intentional stable surface for the transmission material.
 *
 * This interface inherits the normal Three.js `MeshPhysicalNodeMaterial` contract so the value
 * remains usable anywhere Three.js expects a material. Structural controls rebuild the shader;
 * set them before a render when possible. The default shared viewport buffer is package-owned.
 */
export interface MeshTransmissionNodeMaterial extends THREE.MeshPhysicalNodeMaterial {
    /** Runtime type guard that is always `true` for this material. */
    readonly isMeshTransmissionNodeMaterial: true;
    /** Artistic per-channel dispersion strength. */
    chromaticAberration: number;
    /** Directional blur strength along the refraction flow. */
    anisotropicBlur: number;
    /** Offset added to the internal clock used by temporal distortion. */
    time: number;
    /** Noise displacement applied to the refraction normal. */
    distortion: number;
    /** Noise displacement applied to the shading normal. */
    surfaceDistortion: number;
    /** World-space scale of the distortion noise. */
    distortionScale: number;
    /** Animation strength for time-varying distortion. */
    temporalDistortion: number;
    /** Stochastic sampling jitter strength. */
    ditherStrength: number;
    /** Tiling frequency of the stochastic sampling pattern. */
    ditherScale: number;
    /** Normalized viewport-border width used to fade refraction offsets. */
    edgeFade: number;
    /** Artistic multiplier applied to the physically scaled blur footprint. */
    blurScale: number;
    /** Assumed world-space distance from the exit surface to the sampled backdrop. */
    backdropDistance: number;
    /** Stochastic gather taps per colour channel; changing this recompiles the material. */
    samples: number;
    /** Post-exit ray model; changing this recompiles the material. */
    refractionMode: MeshTransmissionRefractionMode;
    /** Dither coordinate domain; changing this recompiles the material. */
    ditherAnchor: MeshTransmissionDitherAnchor;
    /**
     * Borrowed viewport source sampled by the refraction graph. Assigning `null` restores the
     * package-owned shared viewport snapshot; changing the source recompiles the material.
     */
    viewportBuffer: MeshTransmissionViewportBufferNode | null;
    /**
     * Release Three.js material resources. The operation is safe to repeat; it does not dispose a
     * custom viewport buffer supplied by the caller.
     */
    dispose(): void;
}
interface MeshTransmissionNodeMaterialConstructor {
    readonly prototype: MeshTransmissionNodeMaterial;
    /** Create a physical transmission material with optional stable transmission controls. */
    new (options?: MeshTransmissionNodeMaterialOptions): MeshTransmissionNodeMaterial;
}
/**
 * Construct a transmission material without wrapping or replacing its Three.js identity.
 * Construction can throw when a supplied viewport source is not a sampleable TSL node.
 */
export declare const MeshTransmissionNodeMaterial: MeshTransmissionNodeMaterialConstructor;
export {};