Interp

Interp is a common term in computer graphics and mathematics, referring to the process of interpolation. Interpolation is a method of constructing new data points within the range of a discrete set of known data points. Essentially, it's about estimating values that lie between known values. This is widely used in animation, video games, and scientific modeling to create smooth transitions and fill in missing data.

In computer graphics, interp is frequently used for tasks like animating the position of an object over time. If you know the object's position at time t1 and time t2, interpolation can calculate its position at any time between t1 and t2, creating a smooth movement. Similarly, it can be used to interpolate colors between two points or to smooth out textures.

Mathematically, there are various interpolation methods, such as linear interpolation (lerp), cubic interpolation, and spline interpolation. Linear interpolation is the simplest, assuming a straight line between two points. More complex methods offer smoother curves and more accurate estimations. The choice of interpolation method depends on the desired level of accuracy and smoothness for the application. The core idea remains the same: to estimate intermediate values based on existing data.