# Techviz

This guide shows you how to integrate your VIOSO projection calibration into Techviz.

### 1. In VIOSO <a href="#id-2094856352-ef2so7" id="id-2094856352-ef2so7"></a>

Techviz processes VIOSO’s native export format **(.vwf)**. You can export the calibration in this format from in VIOSO from free mode or project mode

| [**Free mode**](https://docs.vioso.com/start/free-mode)                                                                                                                                                                                                                                                                                                                                                                                                                       | [**Project mode**](https://docs.vioso.com/start/project-mode)                                                                                                                                                           |
| ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| <ol><li><p>Calibrate the projectors in either in:</p><ol><li><a href="../../calibration/content-mapping/2d-warp">2D</a> (for static warping & single viewport), or</li><li><a href="../../calibration/content-mapping/3d-mapping">3D</a> (model based for dynamic warping & multi-viewports)</li></ol></li><li>From the menu bar, go to <strong>File > Export Mapping</strong></li><li>Choose the format <strong>(.vwf)</strong> and tick the 3D box if applicable.</li></ol> | <ul><li>You can either create a project with the “Generic” template and configure the export and mapping type (2D/3D) in the designer</li><li>OR pick a template that has 3D vwf exports like “Unity”</li></ul><p> </p> |

### 2. In Techviz <a href="#id-64949702-wgt3e6" id="id-64949702-wgt3e6"></a>

To enable VIOSO warping, you must first create a [VIOSO.ini](https://docs.vioso.com/integration/real-time-engines/broken-reference) file. Use the following template:

<pre class="language-ini" data-title="VIOSO.ini"><code class="lang-ini"><strong>[default]
</strong>
;; Specify the full path to your VWF file

calibFile=C:\file.vwf
;; Specify the base matrix, that may vary depending on your display setup

base=[1000,0,0,0; 0,1000,0,0; 0,0,1000,0; 0,0,0,1]



;; Specify the channel indices, for as many channels as the VWF file contains

[A_left_eye]

calibIndex=0

[A_right_eye]

calibIndex=0

[B_left_eye]

calibIndex=1

[B_right_eye]

calibIndex=1

[C_left_eye]

calibIndex=2

[C_right_eye]

calibIndex=2



;; If you want debug logs:

; logLevel=3

; logFile=C:\file.log

</code></pre>

You must then enable VIOSO warping in your Techviz configuration file. This is done by adding the following parameters:

```
## Enable VIOSO warping warping\vioso=1 

## Specify the full path to the VIOSO .ini file we just created warping\vioso\ini=C:\file.ini 

## Specify the channel name prefixes, for as many channels as the VWF file contains screen 0\warping\vioso\channel=A screen 1\warping\vioso\channel=B screen 2\warping\vioso\channel=C 

## To set the HUD position automatically to the position of the screen corresponding to the given channel name # warping\vioso\hud=B 

## For debug: 0 to disable, 1 to enable and skip warping, 2 to enable and perform warping 

## This will display the positions of the VIOSO origin (in red), TechViz origin (in blue), and overriding actuals (in green) 

# warping\vioso\debug=1 The warping will now be applied when you launch TechViz.
```

All of these parameters can be modified interactively, including the .ini file: simply click the “Read configuration file” button in Otrack to apply your changes.