Laplacian Filter for PostProcess linework in UE5/UE4

/*

* This code comes from Visual Tech Art's video tutorial

* You can find it here: https://youtu.be/Ptuw9mxekh0

* Follow-up video: https://youtu.be/UWQonxtG10g

* VTA YouTube Channel: https://www.youtube.com/c/VisualTechArt

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*/