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Question How to include/exclude specific objects/materials in a shader?

Discussion in 'Shader Graph' started by Fakkau, May 6, 2020.

  1. Fakkau

    Fakkau

    Joined:
    Mar 11, 2013
    Posts:
    22
    I have a Shader Graph that shows the overlap between a sphere and nearby geometry. Here's an image of what it looks like:

    result.png
    The red area is where the (otherwise invisible) sphere intersects with the floor/wall

    This is exactly what I want BUT I'd like to know how to apply this effect to specific objects or materials. For instance, to make it only display a red area on the floor but not the wall (even if it is also intersecting with the wall).

    I couldn't find any answers by Googling, so could anyone help? :) Here's a screenshot of the graph. (I got it from this thread with just some very small adjustments: https://forum.unity.com/threads/highlight-intersection-shader.731177/ ) shadergraph.png

    Thank you!
     
    Fakkau, May 6, 2020
    #1

  2. SergentMT

    SergentMT

    Joined:
    Mar 14, 2017
    Posts:
    11
    Great! Shader - I'm having some difficulty in deciphering how it actually works, I would like to have it work with arbitrary shapes, but I can't wrap my head around a way to do that.. Any ideas?
    And also did you ever find a way to do it with specific objects/materials/shaders? - I was going to try to apply it to static objects only.
    Thanks in advance :)
     
    SergentMT, Aug 25, 2020
    #2