import { Engine, ModelMesh, Vector3 } from "@galacean/engine";
import { PlainColorMaterial } from "@galacean/engine-toolkit-custom-material";
export declare class Utils {
    static rotateCircleRadius: number;
    static scaleFactor: number;
    static rectFactor: number;
    static redMaterialTrans: PlainColorMaterial;
    static lightRedMaterial: PlainColorMaterial;
    static greenMaterialTrans: PlainColorMaterial;
    static lightGreenMaterial: PlainColorMaterial;
    static blueMaterialTrans: PlainColorMaterial;
    static lightBlueMaterial: PlainColorMaterial;
    static invisibleMaterialTrans: PlainColorMaterial;
    static redArcMaterial: PlainColorMaterial;
    static greenArcMaterial: PlainColorMaterial;
    static blueArcMaterial: PlainColorMaterial;
    static yellowMaterial: PlainColorMaterial;
    static rotatePlaneMaterial: PlainColorMaterial;
    static invisibleMaterialRotate: PlainColorMaterial;
    static invisibleMaterialCircle: PlainColorMaterial;
    static redMaterialScale: PlainColorMaterial;
    static greenMaterialScale: PlainColorMaterial;
    static blueMaterialScale: PlainColorMaterial;
    static greyMaterial: PlainColorMaterial;
    static lightMaterial: PlainColorMaterial;
    static invisibleMaterialScale: PlainColorMaterial;
    static visibleMaterialRect: PlainColorMaterial;
    static invisibleMaterialRect: PlainColorMaterial;
    static lineMesh: ModelMesh;
    static lineMeshShort: ModelMesh;
    static axisXTorusMesh: ModelMesh;
    static axisYTorusMesh: ModelMesh;
    static axisZTorusMesh: ModelMesh;
    static axisXYZTorusMesh: ModelMesh;
    static axisHelpertorusMesh: ModelMesh;
    static axisHelperLineMesh: ModelMesh;
    static axisHelperPlaneMesh: ModelMesh;
    static axisArrowMesh: ModelMesh;
    static axisPlaneMesh: ModelMesh;
    static axisCubeMesh: ModelMesh;
    static axisSphereMesh: ModelMesh;
    static axisEndCubeMesh: ModelMesh;
    static xAxisPositive: Vector3;
    static yAxisPositive: Vector3;
    static zAxisPositive: Vector3;
    static init(engine: Engine): void;
    private static _createPlainColorMaterial;
}