"Fallout 4" uses Bethesda's Creation Engine, which was created for "The Elder Scrolls V: Skyrim". Just after "Fallout 3"s release, the team devised numerous design objectives to meet for "Skyrim"—which were updated for "Fallout 4"s hardware requirements. The updated Creation Engine allows for graphical improvements over Bethesda's previous efforts. For instance, the draw distance renders much farther than in previous "Fallout" games. Dynamic lighting allows shadows to be created by any structure or item in the game world. Howard stated in the E3 Press Conference that the updated Creation Engine allows for next-generation god rays and advanced volumetric lighting. The engine features a variety of visual effects not present in previous Bethesda games such as motion blur, temporal anti-aliasing, height fog, dynamic dismemberment, screen space reflections, filmic tone mapping, an updated material system—for wet textures—among numerous others. The engine allows the Bethesda team to add more dynamic lighting to every scene as well as "paint surfaces with realistic materials". Bethesda released an example on how the engine works: "When a rain storm rolls in, our new material system allows the surfaces of the world to get wet, and a new cloth simulation system makes cloth, hair, and vegetation blow in the wind." The updated Creation Engine allows for a more advanced character creation system, which uses sculpting—forgoing the series of sliders present in previous games. In detail, the new character creation system introduces a new, freeform, slider-free facial editor controlled via dynamic, real-time modeling interface. With regards to the aforementioned fluid animations, the updated engine also allows a much more open approach to conversations with NPCs—wherein the camera views can change depending on the player's preference from a first-person view to a cinematic third-person view—compared to "Fallout 3"s rigid and instanced conversation system. The protagonist features dynamic dialogue, which is context sensitive and allows players to back out of a conversation. In Howard's words, "you are free to walk away anytime if you want, or you can even shoot him in the face." On June 2, 2015, Bethesda published a countdown timer scheduled to expire on June 3, 2015, at 14:00 UTC. The game's website went live slightly ahead of schedule, revealing the game along with its box art and platforms. The site was taken down later but was put back up again at the scheduled time. The trailer was released when the countdown timer expired, and the game was confirmed to take place in Boston and its surrounding Massachusetts countryside, as suggested by earlier rumors.