What is Biased (Rendering)?
In 3D visualization, biased rendering is a technique used to improve the appearance of an object by adjusting how lighting is projected onto it. This can be done in a number of ways, but usually involves simulating more realistic lighting effects than would be possible with a standard rendering engine.
This can be an important step in making objects look their best, and can be used to correct for any biases that may exist in the way light is projected onto an object. For example, if an object is lit from one side only, it will appear darker on the opposite side. By using biased rendering, you can adjust how light is projected onto the object so that it appears more evenly lit.