[DllImport("fccore")] public static extern Bool fcExrEndImage(fcExrContext ctx);
[DllImport("fccore")] public static extern Bool fcExrBeginImage(fcExrContext ctx, string path, int width, int height);
[DllImport("fccore")] public static extern Bool fcExrAddLayerPixels(fcExrContext ctx, byte[] pixels, fcPixelFormat fmt, int ch, string name);
[DllImport("fccore")] private static extern void fcExrDestroyContext(fcExrContext ctx);