/**
 * Post-processing effects for Blender-quality rendering
 * Includes SSAO, tone mapping, and edge enhancement
 */
import { WebGPUDevice } from './device.js';
export interface PostProcessorOptions {
    enableContactShading?: boolean;
    contactRadius?: number;
    contactIntensity?: number;
}
export type PostProcessQuality = 'low' | 'high';
export interface ContactShadingPassOptions {
    targetView: GPUTextureView;
    depthView: GPUTextureView;
    objectIdView: GPUTextureView;
    contactQuality: PostProcessQuality;
    radius: number;
    intensity: number;
    separationQuality: PostProcessQuality;
    separationRadius: number;
    separationIntensity: number;
    enableSeparationLines: boolean;
}
/**
 * Post-processing pipeline
 * Currently implements enhanced tone mapping in shader
 * SSAO and edge enhancement can be added as separate passes
 */
export declare class PostProcessor {
    private _device;
    private options;
    private colorFormat;
    private isMultisampled;
    private uniformBuffer;
    private uniformStaging;
    private uniformF32;
    private uniformU32;
    private bindGroupLayout;
    private pipeline;
    private cachedBindGroup;
    private cachedDepthView;
    private cachedObjectIdView;
    constructor(device: WebGPUDevice, options?: PostProcessorOptions, sampleCount?: number);
    /**
     * Apply lightweight contact shading in a fullscreen overlay pass.
     */
    apply(commandEncoder: GPUCommandEncoder, options: ContactShadingPassOptions): void;
    /**
     * Update post-processing options
     */
    updateOptions(options: Partial<PostProcessorOptions>): void;
    private destroyed;
    /**
     * Destroy all GPU resources held by this post-processor.
     * After calling this method the post-processor is no longer usable.
     * Safe to call multiple times.
     */
    destroy(): void;
}
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