title: VS2017: Unsupported shader model specified
body: <p>So I'm just trying to build this already completed open source file (a CRT filter) in VS2017, but it refuses to build and every time I get the same error: Unsupported shader model specified "fx_4_0_level_9_3"</p>
  
  <p>Anyone have any idea for a fix or work around, I've very new to VS and am just trying to change something very simple and this error is all that's standing in my way. When I change the shader model it causes the code to throw errors, and I really can't understand why this old shader model isn't supported, is it something I need to download?</p>
  
  <p>I'm trying to change the CRTSimSource file located here: <a href="https://piratehearts.itch.io/supercrt" rel="nofollow noreferrer">https://piratehearts.itch.io/supercrt</a></p>