I have a grid set up with a brick texture, and I want to have only the green mortar showing up, so I tried setting the alpha for color 1 and color 2 to 0, but the bricks are still opaque. How can I fix this? Should I even be using a brick texture for this?enter image description here


1 Answer 1


"Fac" output it is alpha value. Connect it to Alpha input

enter image description here

Note, that if you are using EEVEE, you should also select transparency mode (Blend mode) in material settings:

enter image description here

  • $\begingroup$ worked like a charm =) $\endgroup$
    – Sceptual
    May 26, 2020 at 17:49
  • 3
    $\begingroup$ Woah a light theme user, almost didn't recognize Blender there for a second $\endgroup$ May 26, 2020 at 18:36

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