The lerp and blend nodes are broken when used with material functions. When alpha equals to 1, the node returns the input “A” instead of the input “B”.
1 - Steps to Reproduce
In a new project (4.25 ONLY), create a two material function that return two different color (ex: one for red and one for green). Drag and drop these 2 material functions in a new material. Attach a lerp node (ex: green on “A”, red on “B”) and set the “Alpha” to 1.
2 - Results
With an alpha equals to 1, the lerp node returns the color of the material function connected to the input “A”.
3 - Expected
With an alpha equals to 1, the lerp node should return the color of the material function connected to the input “B”.
ok, I found what I did wrong: I forgot changing the parameter name! They were all called baseColor, so the Blueprint system used the first value. The second blue node was an illusion, it was never used! Pretty dumb, I’m new to Blueprint
I copy/paste the color node without changing the name, thus BP system takes them as one variable and never uses the other node. Therefore, Lerp 2 inputs are actually the same value. That’s my problem.
Thanks anyway.
