Anisotropic and Trilinear Filtering

[Ronin]

Does anyone have a link, or a good definition, to describe the differences between these two? Would greatly appreciate it.

 

[Emultra]

Anisotropic filtering helps in rendering texture sharply, even at angles, whereas bi- and trilinear filtering assumes that the texture is viewed from directly above. As far as I know.

 

[MrThermistor]

Trilinear filtering blends together multiple mip maps for a relatively seamless look.

Anisotropic filtering renders wider textures for viewing across them. This makes distant textures look less blurry.

 

[Pete]

Info here, Ronin. The link provided in the AF definition explains everything.

 

[BFG10K]

Trilinear is a square sampling method that samples four texels from each mipmap and another four that are weighted between the two mipmaps.

Anisotropic filtering is a non-square sampling method that samples either four or eight texels from up to 16 mipmaps and deals with texture distortion on angled polygons.

 

[Ronin]

Thanks for all the input, folks. I had a general idea what the difference was, but wasn't sure exactly how to word it.