A new look at mipmap level estimation techniques

摘要

In this work, we study various methods of mipmap level estimation. We show that despite their differences, these methods depend on the interpolated inverse homogeneous coordinate. We introduce a new method based on homogeneous coordinates only that has functionality and efficiency advantages over traditional approaches. Finally, we show that in most common cases, this method handles texture anisotrophy well and could eliminate the need for complicated anisotropy processing.