Anisotropic Texture Mapping Filter for Mobile Devices

This paper proposes a high performance anisotropic texture mapping algorithm in order to achieve high quality image for mobile device.At first,a triangle-based sub-texel precision anisotropic filter （TSPAF） is proposed,which represents the pixel as triangle shape,and an anisotropic triangle footprint is obtained through inverse projection. Based on TSPAF, a hybrid triangle-based sub-texel precision anisotropic filter （HTSPAF） is introduced for saving limited bandwidth,by combining the bilinear filtering and TSPAF filtering with the MIPMap layer chosen.The high quality experimental image results,together with the low computational and storage requirements obtained by the HTSPAF,show that our proposed algorithm is feasible for mobile GPU implementation.