Source Engine Collision Tools
Reviews with five stars
A completely and absolutely stellar add-on, being possibly the best piece of software sans H++ for HAMMER users trying to recreate existing maps quickly. Works like a charm even if you have very little blender understanding (like I did) and came with no errors out of the box, allowing me to turn a .obj from another editor and engine entirely into a HAMMER-readable vmf within minutes. There is hardly enough praise I can give to this addon.
PUSH ME AND THEN JUST TOUCH ME UNTIL I GET MY... COLLISSION.
This addon is literally the easiest way to create collision for Source I've ever witnessed. It's simple and effective. While also letting you get into some of the settings deeper if desired.
The creator is super helpful and will basically entertain any question no matter how stupid I am.
This Blender addon is an absolute game-changer! It makes generating and optimizing collision models for TF2, GMod, and L4D2 a breeze. The customizable settings and smart features like UV-based collisions and easy QC generation save tons of time. If you want your models to be Source Engine-ready in no time, get this addon now! Highly recommended!
Good stuff