Method beginFrame

packages/fairygui/src/render/RenderBridge.ts:83–88

* Begin a new frame * 开始新帧

()

     * 开始新帧
     */
    public beginFrame(): void {
        this._currentFrame++;
        this._clipStack.length = 0;
        this._batchBuffer.length = 0;
        this._backend.beginFrame();
    }

    /**
     * End the current frame