import "../../AbstractEngine/abstractEngine.alpha";
declare module "../../abstractEngine" {
    interface AbstractEngine {
        /**
         * Sets the current alpha mode
         * @param mode defines the mode to use (one of the Engine.ALPHA_XXX)
         * @param noDepthWriteChange defines if depth writing state should remains unchanged (false by default)
         * @see https://doc.babylonjs.com/features/featuresDeepDive/materials/advanced/transparent_rendering
         */
        setAlphaMode(mode: number, noDepthWriteChange?: boolean): void;
    }
}