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Can any one differentiate between LERP, Multiply, blend nodes ?

I am learning UE4. I want to create a multi layered material for landscape. In the process I encounter with the nodes LERP, Multiply, blend which are confusing for me. Can any one differentiate between LERP, Multiply, blend nodes with some examples ?

Maybe this youtube channel can help you

no. that channel didn’t help.

Lerp is using a grayscale input mask to blend between 2 inputs.

Multiply combines two inputs by multiply the values together.

The other blend modes are simple math equations you can find online, they are pretty standard and universal between apps like UE4 and Photoshop.