WebGLRenderer: Restore state after rendering ArrayCamera. See #11703

src/renderers/WebGLRenderer.js

@@ -1428,6 +1428,10 @@ function WebGLRenderer( parameters ) {
 
 				}
 
+				state.viewport( _currentViewport.copy( _viewport ).multiplyScalar( _pixelRatio ) );
+				state.scissor( _currentScissor.copy( _scissor ).multiplyScalar( _pixelRatio ) );
+				state.setScissorTest( _currentScissorTest );
+
 			} else {
 
 				_currentArrayCamera = null;