import { LayeredMaterial } from "../LayeredMaterial";
import { LayerConfig, LayeredMaterialOptions } from "../types";
/**
 * UniformDynamicMaterial with real-time property transitions
 *
 * Uses TSL uniforms for roughness, metalness, and color tint,
 * allowing real-time transitions WITHOUT shader recompilation.
 *
 * Performance: 60fps smooth transitions vs. shader rebuild stuttering
 */
export declare class UniformDynamicMaterial extends LayeredMaterial {
    private _roughnessUniform;
    private _metalnessUniform;
    private _colorTintRUniform;
    private _colorTintGUniform;
    private _colorTintBUniform;
    private _sourceLayers;
    private _targetLayers;
    private _transitionFactor;
    constructor(options?: LayeredMaterialOptions);
    /**
     * Override the material setup to use uniform nodes
     */
    private _setupWithUniforms;
    /**
     * Set transition target and factor (0-1) WITHOUT shader rebuild
     * This only updates uniform values, which is GPU-fast
     */
    setTransitionFast(targetLayers: LayerConfig[], factor: number): void;
    /**
     * Complete transition and update source layers
     */
    completeTransition(): void;
    /**
     * Get current transition progress
     */
    getTransitionProgress(): number;
    /**
     * Get current roughness value
     */
    getRoughness(): number;
    /**
     * Get current metalness value
     */
    getMetalness(): number;
    /**
     * Get current color tint
     */
    getColorTint(): {
        r: number;
        g: number;
        b: number;
    };
    private _lerp;
}
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