Yes. I find it funny to quantify an engine. What does 3% even mean? They started with a complete engine, and modified it. It obviously isn't specific, but they didn't make it themselves.
And yes, Source is exactly a modified Quake engine.
And no, every engine isn't the same. That's ridiculous.
And yes, Source is exactly a modified Quake engine.
And no, every engine isn't the same. That's ridiculous.
