Hello,
So i have to create a vertex blend function.
I created a 4-way texture blend that work with the doc and i need to put it in a function.
My inputs needs to be materials attributes and i’m missing something, how can i make this work :
set the four inputs you have to “texture object” (I’m not at computer to check the name) and plug those into the “Tex” input of the texture samples.
that should do it 
yes that do work for texture but i need vertex paint materials attributes and not textures, thats why material attributes !
I do have a snow, a rock and 2 others attributes, and i need to create a vertex blend betwin them
sorry, did not have my coffee yet when answering 
Replace the lerp with a “MatLayerBlend_Standard”
No need for the texture samples.
i’ll try that asap ! thanks
You can also make not only blending by channel but by color. For eg. blend red only if its red non zero and other two zero. Then you blend yellow when green and red are non zero but blue is zero. So you can double amount of “blend colors”. A bit harder to paint (blue cannot overlap with yellow)