Flame

Flame is not one of the traditional marbling patterns, but you see it very often in modern pieces in various forms.

It is created by first making a Gelgit and then using a medium rake in the orthogonal direction.

This is the basic Flame pattern made with an all-blue palette. The underlying Gelgit is horizontal, and the tine gap of the up-down rake is set at 1/6 of the width of the image.

This Flame uses the same rake making the same waves, but the underlying left-right pattern is extremely elongated, so that it appears as narrow horizontal lines.

This effect is achieved by exaggerating the amplitude of the waves:

Here is a detail from the blue image (computed at a higher resolution and anti-aliased):