However, after the warm reception of Return to Castle Wolfenstein (which was originally a remake of Wolfenstein 3D) and the latest improvements in rendering technology, most of the employees agreed that a remake was the right idea and confronted Kevin and Adrian with an ultimatum: "Allow us to remake Doom or fire us" (including John Carmack).
After the reasonably painless confrontation (although artist Paul Steed, one of the instigators, was fired in retaliation), the agreement to work on Doom 3 was made. In 2001, it was first shown to the public at Macworld Conference & Expo in Tokyo during the unveiling of Nvidia's Ge Force 3, with Apple CEO Steve Jobs introducing John Carmack on stage, who showed off a few new screenshots of id Tech 4, including some from the Doom 3. It was later demonstrated at E3 in 2002 using an ATI Radeon 9700, where a 15-minute gameplay demo was shown in a small theater. It won awards at E3 that year. Betruger (with spectacles) pushing his way past a couple security guard to initiate a test run.
However, computer systems starting going haywire and evil spirits were released from a portal.One guard is possessed by the spirit and briefly lifted into the air, with his skin shriveling up and his goggles/visor exploding as he is transformed into a mindless zombie.A disadvantage of id Tech 4 was that it needed a high-end graphics processing unit (GPU), which was at least Direct X 8.0 compliant with fully programmable vertex and pixel shaders, such as the Nvidia Ge Force 3 or ATI Radeon 8500, with 64 MB of VRAM.By E3 2002, the recommended GPU was the Radeon 9700; while its Direct X 9.0 features are not necessary to render the game, its advanced architecture, 256-bit memory bus, and efficiency were needed to run Doom 3 at high detail and playable speed. id Tech 4 resulted in the obsolescence of Direct X 7.0 graphics chips such as the widespread Ge Force 2 and Radeon 7200, as well as Direct X 6.0 chipsets such as RIVA TNT2 and Rage 128, and software rendering (with an integrated Intel GMA).After a brief vision of hell, the movie cuts to a nameless marine, taking the player's first-person shooter view.
The player kills various zombies, imps, and commandos, before running out of ammo and being killed by a Hell Knight, who then rips off the player's head (the camera view) and eats it. One memorable scene is when a Pinky Demon is eating the intestines of a Fat Zombie in the bathroom. At the same time of the E3 2002 demo showing, a downloadable film made by Fountainhead Entertainment was released, called Doom III: The Legacy, which contrasted Doom/Doom II with the new Doom III and featured interviews with key id Software staff.
However, from 2001-2003, Direct X 8.0 capable video cards were extremely expensive, never spawning a mass market version like their Direct X 7.0 predecessors, putting them out of the range of all but the most hardcore gamers.
For instance, the Ge Force 3 and Ge Force 4 Ti lines never spawned mainstream versions, while the Radeon 8500's mass-market derivative in the Radeon 9000 did not have the best performance.
As well as dynamic lighting and shadows, the Doom 3 engine was id Software's first to make extensive use of bump mapping.
To create a more movie-like atmosphere, id interspersed the gameplay with many in-game animated sequences of monsters ambushing the player or just lurking around.
This allowed an in-game computer terminal to perform more than one function, such as a readily apparent door-unlocking button, combined with a more obscure function allowing an astute player to unlock a nearby weapons locker.