Is this stretching of the texture?

Hi Adrian,

I’m guessing a bit here, but if you use an Image Texture Node (for the metal Texture), it uses UV Coordinates by default and if you started with a Plane, that has UVs and by adding more Vertices, you got distorted UV’s, hence the stretching. If you’d use Object Coordinates instead, there shouldn’t be any stretching, no matter what your Topology looks like. (If this is way above your head, wait for the Materials, Shading and Texturing Fundamentals.)

There is indeed a problem with the lower left side, which can be seen clearly in the shadow of the Images, where there is a flat side to the circle:

Yes as Martin says, it’s all about UV’s. I don’t know if you have gotten to that part yet, but in the texturing course, be it in the new by Ewa or the previous one by JL, you’ll learn all about UV’s and textures space and coordinates and stuff. It’s a dense subject, but basically the metal material from Poliigon is probably set in a way that your object has not been set to use. So you need to UV unwrap it or change something in the material. But that’ll be something for later when you’re into textures and shading. 

It can also happen that they are not that very close to one another and when you try to merge by distance, nothing happens. If that is the case, remember you can adjust the merge threshold on the Last Operation window. That would be the Merge Distance value:

@marcadrian – re: both verts moving with G. It’s possible you had/have proportional editing on but the circle of influence set as small as possible. Been there, done that. 😀