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Resolved How to get steepness of the mesh

Discussion in 'Shader Graph' started by UserNobody, Apr 21, 2021.

  1. UserNobody

    UserNobody

    Joined:
    Oct 3, 2019
    Posts:
    144
    Hello there,
    I am working on a terrain shader using Shader Graph and would like to ask how to get the steepness of the mesh?
    I want to apply rock texture where the terrain is steep enough, how could I achieve that?

    I currently have this but that doesn't work...

    upload_2021-4-21_23-34-44.png
     
    UserNobody, Apr 21, 2021
    #1

  2. Olmi

    Olmi

    Joined:
    Nov 29, 2012
    Posts:
    1,553
    Wouldn't something simple like this work - just create an up vector (0,1,0) and then get a dot product of that and the current surface normal in either object or world space, depending on your use-case.

    Here's an example graph I created:

    20210423_terrain_steepness_graph.png

    Result:
    20210423_terrain_steepness.png
     
    Olmi, Apr 23, 2021
    #2
    bratixef and UserNobody like this.