import type { Node, PassNode } from 'three/webgpu';
/** A TSL node carrying colour (vec4). Most screen-space effects take one of these as input and return another colour node. */
export type ColorNode = Node;
/** The set of texture, depth, and normal nodes a scene PassNode can expose. Geometry-aware effects (AO, SSR, SSGI, SSS, TRAA) read normal and viewZ from here. */
export interface ScenePassTargets {
    pass: PassNode;
    color: Node;
    viewZ: Node;
    normal: Node;
}
/** Generic shape for an effect factory: takes a colour input node and optional options, returns the processed colour node. Scene-space effects (outline, AO) have their own signatures. */
export type ColorEffect<Options> = (input: ColorNode, options?: Options) => Node;
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