Half-Life 2: Lost Coast is an optional map that Valve has made for Half-Life 2. The new map is playable but is primarily a demo of for what the new Source-engine can do. Some real eye candy and the focus is on HDR, a technology we’ve heard a lot of lately. At Bit-Tech they’ve done a sequel to its first Lost Coast article with performance tests and composed a video with the map. The latter is a real teaser for those who are waiting for Valve to release Lost Coast to the public and show off some of the effects possible with the new Source-engine. Interesting reading for those who want a preview of what to come.