Graphics

Halo 3 utilizes a proprietary, in-house graphics engine, often referred to as the "Halo 3 Engine".As detailed on the Bungie Studios website, it employs advanced graphics technologies such as High Dynamic Range, global lighting and depth of field effects within cutscenes. Motion blurring was absent from the beta, but was added to the final game. Most of the dynamic objects in the game cast real-time shadows on themselves and the environment around them, including the game's plant life. Halo 3 uses normal, bump, and parallax mapping to give surfaces more detail without dramatically increasing the number of polygons. Players can see distances of up to ten miles (16 km) away, all fully three-dimensional. Real time reflections were written into the engine; however, they are often unused as Bungie considered it a waste of resources.

After the game was released, speculations arose that Halo 3 did not natively render at true HD resolution (at least 720 lines of vertical resolution). In a Bungie Weekly Update, it was confirmed that the game was rendered at 1152×640 resolution instead of the usual 1280×720 (HD) resolution that most Xbox 360 games use. The choice for this design was conscious on Bungie's part, due to the fact that Halo 3 uses two frame buffers instead of the usual one, and that this choice would allow Bungie to preserve as much of the dynamic range as possible for the game's lighting, as well as maintaining a smooth frame rate. The picture could be upscaled all the way up to 1080p by the Xbox 360.

Audio

As with all titles on the Xbox 360, Halo 3 fully supports 5.1 surround sound audio. In the game, there are over 50,000 pieces of audio, with nearly 40,000 of those being NPC dialogue. This is far more than in either of the preceding Halo titles; Halo 2 had over 15,000 pieces of dialogue. The AI controlling this dialogue is designed to ensure the exchanges flow naturally and convincingly. Separate recordings were made for nearby and distant gunfire to make for a more believable sound experience. Distant gunfire sounds, which may first seem like prerecorded ambient sound, may often be the result of an actual firefight happening elsewhere in the game.

Marty O'Donnell again composed the original score for the game. Some pieces of the game's music are produced with a much larger real orchestra than any pieces in the prior two games. For example, the music for the announcement trailer was recorded with a 60-piece orchestra and a 24-piece choir. Halo 3 is the first game in the series to feature custom soundtracks, allowing players to replace in-game music with their own choices. The Halo 3 Original Soundtrack was released on November 20, 2007. Included on the soundtrack is an original composition submitted by fans and judged by Nile Rodgers, Michael Ostin, and Marty O'Donnell.

COPYED FROM WIKIPEDIA

Well thats all i could find about the halo 3 graphics , nothing about system requirements sorry.

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