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Blender 2.8 Manual at: https://docs.blender.org/manual/en/2.80/render/shader_nodes/converter/combine_separate.html shows that the combine/separate shader nodes uses RGBA and not just RGB

my install of Blender 2.8 only allows for combine/separate of RGB. Did I miss something? or do I need to hit some checkbox somewhere? or what?

BLENDER MANUAL

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Snipped from Blender 2.8 Manual

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MY INSTALL

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Snipped from my Blender 2.8 install

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  • $\begingroup$ blender.stackexchange.com/questions/61013/… $\endgroup$
    – Duarte Farrajota Ramos ♦
    Commented Sep 24, 2019 at 16:58
  • $\begingroup$ Compositor nodes, though the documentation seems to be incorrect. $\endgroup$
    – lemon
    Commented Sep 24, 2019 at 17:13
  • $\begingroup$ The documentation now states -- In the texture context only RGB color space is available. $\endgroup$
    – Allen Simpson
    Commented Jan 2, 2021 at 4:20

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