> For the complete documentation index, see [llms.txt](https://apertus.gitbook.io/vr/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://apertus.gitbook.io/vr/tutorials/introduction-how-to-visualize-cad-models.md).

# Introduction

Please read [what is ApertusVR](https://apertus.gitbook.io/vr/)

In this tutorial we'll guide you to how to visualize CAD models by an VR application which was made by the libraries of ApertusVR. This VR application is including the following libraries of ApertusVR regaring the above mentioned software architecture.

1. [ApertusCore](https://github.com/MTASZTAKI/ApertusVR/tree/develop/core) for sharing the virtual reality scene over Internet
2. [ApertusOgreRenderPlugin](https://github.com/MTASZTAKI/ApertusVR/tree/develop/plugins/ogreRender) for visualizing the virtual reality scene
3. [ApertusOisUserInputPlugin](https://github.com/MTASZTAKI/ApertusVR/tree/develop/plugins/oisUserInput) for controlling the virtual realty scene by keyboard and mouse.
4. [ApertusAssimpAssetLoaderPlugin](https://github.com/MTASZTAKI/ApertusVR/tree/develop/plugins/assimpAssetLoader) for importing any CAD or 3D model into the virtual reality scene.

The following steps are describe how to use this VR application which was made by the libraries of ApertusVR to see the following virtual reality scene:

![CAD model visualized by an VR application which was made by the libraries of ApertusVR  ](/files/-Lg2C-3RBlGFBt62zSv4)

1. Install [vcredist](https://aka.ms/vs/15/release/vc_redist.x64.exe) into your computer.
2. Download and unzip somewhere the [VR application which was made by the libraries of ApertusVR](http://srv.mvv.sztaki.hu/apertusVLFT/ApertusCore_SDK.zip).
3. Run the \ApertusCore\_SDK\bin\release\apeCoreTester.exe
4. You could modify the content of the virtual reality scene by the \ApertusCore\_SDK\bin\release\apeAssimpAssetLoaderPlugin.json. [Samples for the configuration](https://github.com/MTASZTAKI/ApertusVR/blob/develop/samples/polimi/configs/local_monitor/ApeAssimpAssetLoaderPlugin.json)
5. You could modify the content of the virtual reality scene by the ApertusCore\_SDK\samples\apeCoreTester\apeCoreTester.cpp if you have [Visual Studio 2017](https://my.visualstudio.com/Downloads?q=visual%20studio%202017\&wt.mc_id=o~msft~vscom~older-downloads)


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