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Judging by this error message I found floating around on the net, are ALL props (like prop_statics, perhaps using model collision) considered vphysics? "SOLID_VPHYSICS static prop with no vphysics model!" This implies there could be more to vphysics than just objects obeying gravity. Also, are "hull" objects those objects that uses simple boxes to calculate collisions? --Andreasen 07:48, 15 Oct 2006 (PDT)

Vphysics is the collision system found in models, which is stored in seperate files. Prop_statics use this, if they wouldn't they would either be non-solid or use the bounding box.
Solokiller 09:37, 15 Oct 2006 (PDT)
Even hull simulated objects have what's called a "VPhys Shadow". This allows the objects to impact VPhys objects. Unlike VPhys, this impact doesn't do anything to the hull object except call a callback, while the VPhys object gets knocked around. The key differance between hull and vphys is that hull's position and orientation is controlled by you (the server/client dll), while VPhys is controllod by Havok. --Kateye 11:52, 15 Oct 2006 (PDT)