# Materials with Transmission

You can determine if a material belongs to this category by checking for a node called Scanned Transmission. 

To adjust the opacity, simply modify the *Opaque Threshold* (see below).

<figure><img src="/files/pbigHJRr31U0a5okU5HQ" alt=""><figcaption></figcaption></figure>

If you decrease this value then the material becomes more and more see through, see below:

<figure><img src="/files/Nl2vzegxNeiVWiK0YfyR" alt=""><figcaption></figcaption></figure>

<figure><img src="/files/eCU1v1qbHeozMtzDLI6c" alt=""><figcaption></figcaption></figure>


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