public boolean removePreView(ViewPort view) {
        return preViewPorts.remove(view);
    }
Removes the specified pre ViewPort.

@param view The pre ViewPort to remove
@return True if the ViewPort was removed successfully.

@see #createPreView(java.lang.String, com.jme3.renderer.Camera)
jme3-core/src/main/java/com/jme3/renderer/RenderManager.java