# Simple: forcing refresh after async model loading

**URL:** https://discourse.paraview.org/t/simple-forcing-refresh-after-async-model-loading/9468
**Category:** Web Support
**Tags:** python
**Created:** [April 20, 2022, 7:34am UTC](https://discourse.paraview.org/t/simple-forcing-refresh-after-async-model-loading/9468 "2022-04-20T07:34:41Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![eino](https://discourse.paraview.org/user_avatar/discourse.paraview.org/eino/32/8977_2.png) [@eino](https://discourse.paraview.org/u/eino)
#### Post date: [April 20, 2022, 7:34am UTC](https://discourse.paraview.org/t/simple-forcing-refresh-after-async-model-loading/9468/1 "2022-04-20T07:34:41Z")

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Hi,

So I have a `paraview.simple` server that loads a vtp model, and displays it via `simple.Show(polydata)`. So far all worked fine.  
I need to load it asynchronously, so I moved this code to a protocol, in a function decorated with `@exportRPC("file.load")`.  
The issue is that even though the model is loaded, it is not immediately visible. It becomes only visible when the user forces render, for instance by moving the model with the mouse or resizes the window.

So I guess it’s just a missing “refresh” call, but I can’t find what it is.  
I call `simple.Render()`, and also tried `simple.GetRenderView().Update()`, but neither is sufficient.

Does someone know what I’m missing?

Thanks in advance

Edit: actually the issue may be client-side: a call to `view.resize();` (`view` being the `vtkRemoteView`) after the RPC method fixes the issue. A simple `view.render()` is not enough. Still a call to resize (or `resetCamera` works also) feels a bit hackish; I wonder if there is a more appropriate call?