draw

public void draw(GameScene activeStage, float delta) {

        Gdx.gl.glClear(GL20.GL_COLOR_BUFFER_BIT | GL20.GL_DEPTH_BUFFER_BIT);
        Gdx.gl.glClearColor(1, 1, 1, 1);

        CommonApp.postProcessor.capture();
        CommonApp.glPrimitiveRenderer.begin(getCameraController().getCamera().combined, GL20.GL_LINES);
        CommonApp.modelBatch.begin(getCameraController().getCamera());

        if (activeStage != null) {
            activeStage.draw();
        }

        CommonApp.glPrimitiveRenderer.end();

        CommonApp.decalBatchCommon.flush();
        CommonApp.modelBatch.end();
        CommonApp.decalBatchTransparentLayer.flush();
        CommonApp.postProcessor.render();

        clientUi.stageGUI.draw();
    }