I have a material with two different textures: One is the “main texture” in b/w, and one is a lookup gradient with two colors. Using a Param2D for each texture, it’s as simple as connecting the red from the main texture to the UV of the gradient texture to colorize the main texture.
However, now I am using texture arrays for both the main texture and the gradient texture, as they need to be swapped at runtime from a blueprint. Now I can’t figure out how to connect the two textures, since the uv in from the gradient texture is blocked, and I haven’t figured how to maybe combine the TexCoord and the main texture?