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hi,i have a few questions about some of the sockets of certain nodes

Forum Archive › hi,i have a few questions about some of the sockets of certain nodes

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  • October 4, 2020 at 4:29 am #12809
    dedd26
    Participant

      hello. i was wondering what the ‘alpha’ node does on the colour ramp node, does it have something to do with transparency? my other question is if every single grey output socket will only output a value between 0-1. Thank you.

      October 4, 2020 at 8:21 am #60551
      spikeyxxx
      Participant

        Hi, good questions.

        The colors in the Colorramp can have an Alpha set to less than 1, (although I have never seen this done..) so you can create a greyscale Alpha map if you’d want (but there are easier ways to do that):

        Not every grey output socket gives a value between 0 and 1, trivial example:

        the output of the Multiply Node can obviously get bigger than 1

        or:

        The X, Y, and Z Locations can be anything. The Object and Material Index are non-negative integers. 

        A Musgrave Texture outputs values with an average of 0, so positive and negative numbers (possibly exceeding  the -1 to 1 range:

        October 4, 2020 at 8:31 pm #60552
        dedd26
        Participant

          hi, thanks for the detailed answers! 

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