How can i make additive shader in amplify shader(ase)

I made this but the texture with transparent background doesn’t work
how do i fix it?

You have to connect alpha to opacity

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It doesn’t work

You can also make float parameter and connect it to opacity mask and them change value. It will be definitely something connected with those 2 nodes

Does your texture even have an alpha channel? If not, use one of the color channels (if it is grayscale only).
Having a separate parameter that controls the opacity instead of using the color parameter (as Manus suggests) is favorable for better control.
Also keep in mind, that you have to select the correct alpha mode in the texture settings, if the texture does not have an alpha channel filled.