It's the resolution, the smaller, the smoother.

INGA-KX, respect!!!

Well, yes and no. Its the resolution of the textures. It doesn't matter how high the screen resoultion is, if the texture resoltion is low, and there is no interpolation, then you will see the individual texture pixels clearly. The game must have high resolution textures.

Yeah, Redneck used much higher res textures than similar Build games such a Duke Nukem and Blood. On average, tiles were 256 square compared to 128 for DN3D.