# Cylinder Example rendered window doesn't show anything (Windows, Visual Studio, C++)

**URL:** https://discourse.vtk.org/t/cylinder-example-rendered-window-doesnt-show-anything-windows-visual-studio-c/13593
**Category:** Development
**Created:** [March 20, 2024, 2:44pm UTC](https://discourse.vtk.org/t/cylinder-example-rendered-window-doesnt-show-anything-windows-visual-studio-c/13593 "2024-03-20T14:44:03Z")
**Posts on this page:** 2
**Page:** 1

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### Author: ![eyalweisz](https://discourse.vtk.org/user_avatar/discourse.vtk.org/eyalweisz/32/8651_2.png) [@eyalweisz](https://discourse.vtk.org/u/eyalweisz)
#### Post date: [March 20, 2024, 2:44pm UTC](https://discourse.vtk.org/t/cylinder-example-rendered-window-doesnt-show-anything-windows-visual-studio-c/13593/1 "2024-03-20T14:44:03Z")

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Hi friends, I’m new to VTK.  
Built VTK and tried the “Hello World” Cylindar Example.  
After configuring and generating it using CMake,  
I opened it in Visual Studio and set the CylinderExample project as the startup project.  
I Built and ran it, the rendered window is showing but it doesn’t show anything, not the background color nor the cylinder.  
I don’t see any errors.  
In case it helps, during runtime, the output mentions that the VTK modules are built without symbols (which as far as I understand suppose to help with debugging).  
How can I solve this?

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<div class="post-metadata">

### Author: ![eyalweisz](https://discourse.vtk.org/user_avatar/discourse.vtk.org/eyalweisz/32/8651_2.png) [@eyalweisz](https://discourse.vtk.org/u/eyalweisz)
#### Post date: [March 21, 2024, 4:35pm UTC](https://discourse.vtk.org/t/cylinder-example-rendered-window-doesnt-show-anything-windows-visual-studio-c/13593/2 "2024-03-21T16:35:42Z")

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I solved it.  
Answering here in case it will help others.  
My VTK build works in Release and I built the code in Visual Studio in Debug.  
Changing it in Visual Studio to Release has done the trick.  
It works.