export interface IGroundConfiguration { size?: number; receiveShadows?: boolean; shadowLevel?: number; shadowOnly?: boolean; // deprecated mirror?: boolean | { sizeRatio?: number; blurKernel?: number; amount?: number; fresnelWeight?: number; fallOffDistance?: number; textureType?: number; }; texture?: string; color?: { r: number, g: number, b: number }; opacity?: number; material?: { [propName: string]: any; }; }