UnityEditor.Unsupported.SetRenderSettingsUseFogNoDirty C# (CSharp) Method

        public static extern void SetRenderSettingsUseFogNoDirty(bool fog);
        [MethodImpl(MethodImplOptions.InternalCall)]

 private void EndPreviewInstance()
 {
     this.previewUtility.Render(false, true);
     PreviewRenderUtility.SetEnabledRecursive(this.paletteInstance, false);
     Unsupported.SetRenderSettingsUseFogNoDirty(this.m_OldFog);
 }