/** Affine (non-perspective-correct) UV texture coordinate interpolator. */
export declare class AffineUVSampler {
    /**
     * Interpolates UV coordinates linearly along a scanline.
     * @param u1 U at start of scanline
     * @param v1 V at start of scanline
     * @param u2 U at end of scanline
     * @param v2 V at end of scanline
     * @param t Position along scanline in [0, 1]
     */
    sample(u1: number, v1: number, u2: number, v2: number, t: number): {
        u: number;
        v: number;
    };
}
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