Hybrid Triangle-Based Sub-texel Precision Anisotropic Filtering for Mobile Devices

Abstract

Anisotropic texture mapping is not suitable for mobile devices because of their limited power consumption and low performance. To solve this problem, this paper proposes a triangle-based sub-texel precision anisotropic filtering (TSPAF). Then a hybrid triangle-based sub-texel precision anisotropic filter (HTSPAF) is presented, which combines the bilinear filtering and TSPAF filtering with the MIPMap layer selection. The experimental results show that the new approach can obtain good quality images with lower hardware cost, which is thus feasible for mobile GPU hardware implementation.