Improved Relief Texture Mapping Using Minmax Texture

We propose a method for three-dimensional surface details mapping and rendering based on conventional relief texture mapping. The depth extrema of intersection points within a viewing cone are computed and stored in a minmax texture in the preprocessing time. This texture is then used to narrow down the search space of ray-height-field intersection during rendering. As experimental results show, our method presents better visual quality and efficiency than previous proposed related methods[14][3][6][1][12][11][9].