When creating meshes we enter data into a few different arrays.

Meshes are created by setting up 3d coordinates and then defining polygons between those. Vertices, triangles, UV coordinates, normals and tangents. If you get really stuck feel free to send a PR or contact me below.

PLEASE NOTE: I update these examples from time to time to follow the latest Unreal versions. There is a lot of code duplication between the different examples which I felt was OK for the first few examples, but I will refactor some of the common functions into a utility class soon. There are many ways this code could be optimized to run better, but I wanted to keep things simple in the first few examples. I wrote the code to be readable, trying my best to explain each step along the way. I'm also willing to add contributors directly if anyone is interested (see contact information below). I would love for this to become a community project, so I will accept both pull requests for new samples as well as any corrections to my code. The purpose of this project is to provide examples for how to generate geometry in code, from simple cubes to more complex geometry generated from fractal algorithms. There have been a few good discussions on the Unreal forums, but not a lot of samples for how to do this. I've been wanting to learn how to procedurally generate meshes in Unreal for some time now, and have noticed interest from the community as well.

Unreal engine 4 procedural generation