1
$\begingroup$

I searched everywhere and I can't find an answer on how to do this with Blender and Cycles:

  • I have a pre-made model with textures
  • Some materials have a Diffuse map (JPG) with a separate Alpha Map, another JPG.

What kind of texture setup do I need to make these two maps give me a texture with alpha that I can use in a Cycles material?

Thanks in advance.

$\endgroup$
  • $\begingroup$ jpegs cant have an alpha channel. My guess is that your second jpeg is a luma map (Just black and white). $\endgroup$ – Dontwalk Sep 4 '18 at 18:41
  • $\begingroup$ @Dontwalk I think he means the alpha map came as a separate image file, rather than an alpha channel in a PNG or other supported file format. That being said the setup is no different from other transparent materials. $\endgroup$ – Duarte Farrajota Ramos Sep 4 '18 at 18:46
  • $\begingroup$ @ Duarte Farrajota Ramos - He said he got two jpegs so there cant be an Alpha Channel or transparency. I'm guessing (without seeing the files) that one of the jpegs is just B&W to be used as a Mask. $\endgroup$ – Dontwalk Sep 4 '18 at 19:02
2
$\begingroup$

Actually you just need to use the output of the second texture (Alpha Map) as the alpha. For example: using it as the transparency: enter image description here

Note that the Alpha is Non-Color Data

$\endgroup$

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.