Any idea how to render wireframe (quads) in Eevee?
Unfortunately the Wireframe modifier is so slooooooooooow it is practicaly unusable for my project.
I found tutorial for Cycles:
https://www.youtube.com/watch?v=apOhpyICLhs
but it does not work well in Eevee (weird triangles)
The wireframe modifier can be very slow on a large mesh though, I believe that is what the OP was saying.
A different approach:
create a new UV Map and just press U → Reset to unwrap it (so that every face fills up the whole canvas).
Then use a Node Setup like this:
greater-than/less-than math, this can also be turned into a Node-Group with a single edge width slider.Clever! Thanks for sharing.
The Wireframe modifier works ok only for very simple objects.
Thanks. Nice idea.
The problem with this solution is it does not work with modifiers e.g. displace, subdivision.
Thanks but I need quads.
I try this method but wireframe is not showing 
Solved: After to reset the uv’s is working! 
Yeah, the trick with all these methods is that each face of the mesh needs to have the full uv coordinate range from 0 to 1, which you get with reset uv.
Great it’s working for you! 
But then you can’t use Sanne’s approach of resetting each face. That result in each face taking up the full UV space, obviously resulting in stretching. As you can see on Suzanne, the top head faces are bigger and results in a differently sized grid. This thread is about wireframe rendering.
Yeah, what CarlG said. The method I suggested needs to have resetted uv coordinates for every face, but even then, the line thickness is relative to the face dimension. I tried to prevent that, but I didn’t succeed.
I’m not sure how I would approach your use case, might involve a lot of fiddling with finding the right uv projection for each face, but I’m no uv expert, there might be better ways I’m not seeing. Maybe ask in material and texture support, I’m sure people will have better ideas.
Is there a way to attach an emmision shader so that the edges emit?
