import type { GPUVegaCanvasContext } from '../types/context.js';
import type { SceneGradient } from '../types/scene.js';
export interface GradientResources {
    device: GPUDevice;
    /** Stop ramps keyed by gradient id (or serialized stops). */
    ramps: Map<string, GPUTexture>;
}
export declare function getGradientResources(device: GPUDevice, ctx: GPUVegaCanvasContext): GradientResources;
/** Creates the per-draw gradient bind group (params + ramp + sampler). */
export declare function createGradientBindGroup(res: GradientResources, pipeline: GPURenderPipeline, gradient: SceneGradient, bounds: [x: number, y: number, w: number, h: number]): GPUBindGroup;