Namco · 1993 · 1993 – 1999
CPU: Motorola 68020 @ 24.8 MHz + 2× TI TMS32025 DSP @ 49.152 MHz
The first arcade board to feature texture mapping, System 22 gave the world Ridge Racer — the first arcade game with texture-mapped 3D graphics — and set the visual standard that the entire industry then chased.
Namco's System 22 debuted in Japan in 1992 with Sim Drive and reached the world in 1993 with Ridge Racer, and it holds a genuine first: it was the first arcade system board to feature texture mapping. Where Sega's Model 1 and Namco's own System 21 had rendered 3D worlds from flat-shaded polygons — geometric, striking, but plainly artificial — System 22 could paint bitmap images onto polygon surfaces, and the difference was transformative. The board was designed by Namco with assistance from Evans & Sutherland, a company whose expertise lay in professional flight simulation and computer graphics rather than games. Where the earlier System 21 had used a bank of DSP chips to perform 3D calculations under the direction of the main CPU, System 22 handed much of the graphics work to Evans & Sutherland's TR3 chipset — a texture-mapping, real-time rendering system whose provenance in simulation hardware shows in the quality of what it produced. The capabilities were remarkable for 1993. Beyond texture mapping, the board could perform Gouraud shading, transparency and translucency effects, depth cueing and fog, Z-buffering, and anti-aliasing, and it could handle transform, clipping, and lighting in hardware. Two Texas Instruments TMS32025 DSPs running at 49.152 MHz drove the geometry, and the system could push more than 240,000 quad polygons per second with texture mapping and Gouraud shading applied — figures that made contemporary home hardware look prehistoric. Ridge Racer was the showcase, and its impact is difficult to overstate. As the first arcade game with texture-mapped 3D graphics, it presented a racing world with surfaces that looked like surfaces — asphalt, grass, signage, rock — rather than coloured facets, and its drifting handling model became as influential as its visuals. The game became the definitive symbol of Namco's arcade prowess, and its rapid conversion to the launch line-up of the PlayStation in 1994 did more than almost anything else to persuade players that Sony's new console was serious. System 22 was the board that showed the industry what the polygon era would actually look like.