PRAGMATIC VEX 1 | GRADIENT ASCENT & DESCENT | CONTOUR LINES

Now that we know about gradients, there is another concept that's related to them that can be acquired quite easily, and that concept is contour lines.

A contour line (also isoline) of a function of two variables is a curve along which the function has a constant value, so that the curve joins points of equal value. There are very interesting relationships between the gradients and the contour lines.

Pragmatic VEX series is aimed to increase the technical capacity of the artists and TDs which will allow them to tackle more complex production shots with complete control and ease by acquiring a deeper technical understanding of how things work in Houdini at the lowest level with a strong applied focus on high-end feature film visual effects production.