gl3 inky particles edge detection quick ?

    Dec 06 2019 | 6:21 pm
    Hello. In an effort to try to understand shaders and gl3 more I am trying to understand how this patch could be translated to gl3. To keep things simple I am just trying to get an idea of where to start. My question:
    How does the edge detection occur? Would it be added to the shader via texture, or through some other means like a matrix into one of the Mesh inlets.
    thanks for any help