I have a library which provides functions for 1/2/3/4-D simplex noise. With that I successfuly created a tileable 2D cloud texture (see How do you generate tileable Perlin noise?). Now I want to create a tileable 3D cloud volume. It only has to be tileable in 2 dimension of course.
How can I achieve this? Do I need higher dimension than 4D noise?
