camera - libGDX: Get most left coordinate in a FillViewport -

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how can left coordinate in fillviewport? tried things camera.viewportwidth/50, math.abs(gamescreen.viewport.getleftgutterwidth()) when resizing game, sprite should left outside of screen. resize method:

 @override     public void resize(int width, int height) {         viewport.update(width,height, true);     }


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