Contents
How do I make tileable noise?
Basically, map the X coordinate of your pixel to a 2D circle, and the Y coordinate of your pixel to a second 2D circle, and place those two circles orthogonal to each other in 4D space. The resulting texture is tileable, has no obvious distortion, and doesn’t repeat in the way that a mirrored texture would.
How does Perlin noise work?
Perlin noise is a procedural texture primitive, a type of gradient noise used by visual effects artists to increase the appearance of realism in computer graphics. The function has a pseudo-random appearance, yet all of its visual details are the same size.
How to make tileable procedural noise texture in Blender?
Here’s an implementation of that as nodes, expressing c as a multiple of a. The U and V nodes multiply the generated 0-1 X and Y values by 2pi. whose output can be put through a mapping node for conveniently hunting down locations and rotations of the torus which give a desirable pattern..
How to make a procedural texture behave in a tileable way?
To the best of my knowledge, Blenders proceedural textures ( like Musgrave, Voronoi ) are fundamentally non-tiling, so the only way to make it behave like that would be to have an additional process to manipulate the visible section after it had been generated. Which is far easier to do in Gimp.
How do you generate tileable Perlin noise in tiles?
This gives a positive region (yellow) and negative region (blue) The surflets have a 2×2 extent and are centered on the integer lattice points, so the value of Perlin noise at each point in space is produced by summing the surflets at the corners of the cell that it occupies.
How to generate tileable FBM noise in Python?
There’s two parts to making seamlessly tileable fBm noise like this. First, you need to make the Perlin noise function itself tileable. Here’s some Python code for a simple Perlin noise function that works with any period up to 256 (you can trivially extend it as much as you like by modifying the first section):