Regular Cartoon shading with three layers.
Demo of cartoon shading
Color shading using a seperate transfer function for coloring.
Making it possible to create metal-like shading.
Demo of color shading
Basic contours using the formula: p = pow(|N.V|, n), and noise reduction.
One can easely remove the gradients wich are below a certain threshold.
Demo of contour rendering
Ridges created with curvature calculation using Kindlmanns method.
Ridges and valleys are shown if the absolute value is above and adjustable threshold
Demo of ridges and valleys rendering