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Question Custom SubGraph default parameter

Discussion in 'Shader Graph' started by alkaitagi, Jan 15, 2020.

  1. alkaitagi

    alkaitagi

    Joined:
    Dec 8, 2016
    Posts:
    87
    I have created a subgraph that, among other ones, takes a Vector2 as a parameter meant for UV input. But quite often that parameter is left assigned to a UV0 node that I create. Is there a way to make the subgraph's parameter by default to be assigned to a UV0 the way this is done with SameplTexture2D or TilingAndOffset nodes?
     
    alkaitagi, Jan 15, 2020
    #1

  2. alkaitagi

    alkaitagi

    Joined:
    Dec 8, 2016
    Posts:
    87
    This is what I have now: upload_2020-1-15_10-47-37.png

    And this is what I would like to have:
    upload_2020-1-15_10-47-53.png
     
    alkaitagi, Jan 15, 2020
    #2

  3. alkaitagi

    alkaitagi

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    Dec 8, 2016
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    Found out it is called Port Binding but still did not get how to apply it.
     
    alkaitagi, Jan 15, 2020
    #3

  4. alexandral_unity

    alexandral_unity

    Unity Technologies

    Joined:
    Jun 18, 2018
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    This is not currently supported but it's a feature request we know about and want to work on in the future.
     
    alexandral_unity, Jan 15, 2020
    #4
    Garrafote and alkaitagi like this.

  5. Garrafote

    Garrafote

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    Jun 13, 2013
    Posts:
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    +1 for this request!

    It'd be pretty cool to be able to mark Vector2 inputs as a UV channel by default
     
    Garrafote, Jun 9, 2020
    #5

  6. Gekigengar

    Gekigengar

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    Jan 20, 2013
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    Last edited: Oct 11, 2022
    Gekigengar, Oct 11, 2022
    #6

  7. fkoehne

    fkoehne

    Joined:
    Jul 25, 2017
    Posts:
    1
    Hey, we would love to use this feature, but aren't sure how to? Is it actually released?

    Edit: Currently when building a Subgraph with a custom UV you provide as a SubGraph-Parameter the preview inside of ShaderGraph is completely unusable, because the UV is always 0,0 for every pixel.
    This makes SubGraphs really hard to debug as soon as you want to use anything but the default UV as input.
     
    Last edited: Jun 1, 2023
    fkoehne, Jun 1, 2023
    #7
    leohilbert likes this.

  8. MirzaBeig

    MirzaBeig

    Joined:
    Dec 27, 2014
    Posts:
    602
    In case it helps anyone, here's how you can set the default for an input port on a sub-graph in Shader Graph when there's nothing connected.

    The image below shows how to use the Branch On Input Connection node.
    You simply pass the input node -> both the input and Connected ports, and set NotConnected to your default.

    In my case I want the default to be centered UVs for a custom Circle SDF node.

    upload_2023-10-7_20-56-35.png

    So without anything connected to UVs it correctly shows the default centered UVs.
    The default label also displays.

    upload_2023-10-7_20-57-54.png

    If I actually connect to the uv port, we know it's now taking the non-centered UV that's connected.

    upload_2023-10-7_21-2-12.png
     
    MirzaBeig, Oct 8, 2023
    #8
    MarcAllozaAyxendri and FariAnderson like this.

  9. FariAnderson

    FariAnderson

    Joined:
    Jan 20, 2020
    Posts:
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    my input(p) node would not connect to anything

    upload_2023-11-23_18-24-13.png

    Unity 2022.3.0 - BuildInRP
     
    FariAnderson, Nov 23, 2023
    #9

  10. FariAnderson

    FariAnderson

    Joined:
    Jan 20, 2020
    Posts:
    37
    I just found that i should enable Custom Binding for the Input

    upload_2023-11-23_18-33-53.png

    obviously i didn't quite pay attention to the Mirza's post :)
     
    Last edited: Nov 23, 2023
    FariAnderson, Nov 23, 2023
    #10
    Celezt and MarcAllozaAyxendri like this.