[Duke_of_vampires]

i mean this:
"A lightmap is a 3D engine light data structure which contains the brightness of surfaces in a video game. Lightmaps are precomputed and used for static objects. Quake was the first computer game to use lightmaps to speed rendering while preventing floors from looking distorted. Before lightmaps were invented, 3D engines used Gouraud shading for the floors and walls which caused shimmering. The most common methods of lightmapping are to either precompute vertex lighting by using distance from each vertex to a light, or by using multitexturing to apply a second texture which contains the lumel data."