# How to use NVIDIA Broadcast technologies with touchdesigner

Using NVIDIA background, body tracking, face tracking
When using touchdesigner as a media server with notch block
How can I use it?

The manual states that if you use disguise, you can use it by storing the Demolition-NGXCUDA.dll file anywhere.

The manual specifically states the dll needs to be placed in the C:\Program Files\Derivative\TouchDesigner\bin directory - had you placed it there and not had any success?

– Ryan

I was looking at the NVIDIA AR Body Tracker’s manual and didn’t notice it.

Thanks, Ryan, I succeeded.

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