public int SubmitRenderTargets(RenderTarget2D rtLeft, RenderTarget2D rtRight, int frame = 0)
{
IntPtr dxTexLeft = rtLeft.GetNativeDxResource();
IntPtr dxTexRight = rtRight.GetNativeDxResource();
return(NativeRift.SubmitRenderTargets(dxTexLeft, dxTexRight, frame));
}