Texture mapping system using the same and mipmap level selection method

摘要

Mipmap level selection method is used for texture mapping global illumination (Global Illumination) foundation (Texture Mapping). Mipmap level selection method, to confirm the object information for at least one object is present on the screen. Object information may include the position of the object in space that appears on the screen the number of objects in the screen, shape, and materials, or /. To determine the mipmap level selection algorithm based on the object information. The mipmap level selection algorithm, including the distance comparison method and ray tracing method, and / or to select a mipmap based on the differential of the light rays which are adjacent to each other in (Differential) value, the distance comparison method, ray tracing method, texel and pixel It is possible to select the MIP map by calculating the distance to be 1: ratio of 1. To select the mipmap level on the basis of the method has been determined. [Selection] Figure Figure 1