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Half-Life: Alyx - How to Make AI Nav Work with Bootleg Tools

Written by Dynacorp   /   Apr 8, 2020    


This guide will show you how to get navigation working in Half-Life: Alyx.

Making AI Nav Work with Bootleg Tools



Step 1



Add the following line to your FGD for HL:A if it is absent:

  • @include "markup_volumes.fgd" 



Step 2



In your gameinfo.gi, in the Hammer section, set NavMarkupEntity to func_nav_markup (replace func_hlvr_nav_markup with func_nav_markup)



Step 3



In Hammer, go to the Navigation tab and select "Create Walkable Seed", draw out a small block, and hit Enter.

Step 4



Make sure NPCs are in your map, hit F9, and build the map!

End Result



The end result should look something like this:


Written by Dynacorp.