public void BlurVertically(DeviceContextHolder holder, ShaderResourceView view) {
holder.DeviceContext.OutputMerger.BlendState = null;
holder.QuadBuffers.Prepare(holder.DeviceContext, _effect.LayoutPT);
_effect.FxInputMap.SetResource(view);
_effect.TechPpVerticalBlur.DrawAllPasses(holder.DeviceContext, 6);
}