Random Modular Textures Tutorial
/Big thanks to my March 2021 Patrons for supporting me in making this! Please continue supporting me on Patreon!
This is also posted as a thread on BlenderArtists.
What do you do when you need a lot of something, but with slightly different textures? When I was making my Reimu project, I was considering doing a scene where she is throwing her charm cards all over the place (a common theme in Touhou art.) So I built a setup that would let me make any number of charms, but keep variety in their textures and colors. I only ended up using a few of them in the test pose I covered in my overview video of that project, but I got a lot of questions about how the setup was done.
I cleaned up and optimized my previous setup for my March 2021 Tier 2 Patron reward. Here’s a video that will teach you how it all works! The education file is available on Gumroad($), or you can follow along with the video to build it yourself.
Each duplicate of the object has a different selection of 3 random Symbols (from a sheet of 9), one Border (of 6), and random colors. The node setup splits the image into tiles and gets a random tile by manipulating the UV coordinates. There are several core node groups that can be reused, and example groups built around them that are specific to Reimu’s Charms.