I have been doing a lot of learning about texture quality for the last few weeks and there is one thing I am struggling to understand, which is negative LOD Bias. I notice that nearly all of the textures that come with Xpacks have a neg. LOD of -4. When I use those in the track I get very bad aliasing. If i set my neg. LOD to clamp in the Nvidia profiler it looks great. So I go and adjust all the negative values on the textures to 0 and I get rid of all the aliasing in the game and the textures still look nice. The only thing I notice that makes textures with a neg. LOD of -4 look good is Antialiasing transparency, but AA transp. takes a lot of processing power. My system can quite easily handle high quality settings but when I create a track I like to leave the settings at default so I can cover the average user. My question is.. Is it a code of practice to set neg. LOD bias like this so that people with high end computers can have clear clean looking textures with all their AA turned on and people with low end computers can chose to clamp and have less clear textures? I am struggling to decide weather to leave all the neg. LOD at 0, or be more considerate to people with high end systems and set it to -4. But at the same time, who would know to set clamp on to fix an aliasing issue? I am thinking that if I want to make the average person happy, it's best to set it at 0, because people who don't know the technical side of computers will otherwise instantly be unsatisfied with the track. It's all too confusing for me atm [ED] forgot to mention, I know what neg. LOD bias is, I just don't know how to use it to it's advantage.