Bleach:Zanpakutou Senshi is a totally free Total Conversation of Half-Life 1. It´s based on the japanese hit Anime Bleach.
This is an example of the effect from using the solution as described in Update #23.
The small collision boxes (which looks like dots) are placed around the front corners and one in the front centre of the model.
Here the model collided with the left corner of the middle section, the collision box is no longer rendered in that corner.
The collision detection is then acceptable precise compared to our former bounding box solution that half-life provides without modifications.