Anisotropic Filtering
The idea:
- adjust texture filtering methodology to account for the shape of the pixel footprint in texture space, as well as the size
- two flavors: Talisman™ Escalante, and TEXRAM Footprint Assembly
Advantages:
- demonstrable improvement for higher distortion projections
Disadvantages:
- expensive, slow (more texture samples needed)
- still some flaws (poor quality on off-angle and extreme perspective)
Conclusions:
- this is a pretty good idea, but more work is needed