/**
 * RenderPass.ts
 *
 * Render pass pipeline: ordering, dependencies, framebuffer
 * attachments, clear ops, and compositing.
 *
 * @module rendering
 */
export type AttachmentFormat = 'rgba8' | 'rgba16f' | 'rgba32f' | 'depth24' | 'depth32f' | 'stencil8';
export type ClearOp = 'clear' | 'load' | 'discard';
export interface FramebufferAttachment {
    name: string;
    format: AttachmentFormat;
    width: number;
    height: number;
    clearOp: ClearOp;
    clearColor?: [number, number, number, number];
}
export interface RenderPassConfig {
    id: string;
    name: string;
    order: number;
    enabled: boolean;
    dependencies: string[];
    attachments: FramebufferAttachment[];
    inputs: string[];
    viewport?: {
        x: number;
        y: number;
        w: number;
        h: number;
    };
}
export declare class RenderPass {
    private passes;
    private sortedOrder;
    addPass(config: RenderPassConfig): void;
    removePass(id: string): void;
    getPass(id: string): RenderPassConfig | undefined;
    enablePass(id: string, enabled: boolean): void;
    private rebuildOrder;
    getExecutionOrder(): RenderPassConfig[];
    validate(): string[];
    private hasCycle;
    getPassCount(): number;
    getAllPasses(): RenderPassConfig[];
}
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