Brick wall strange artifacts

MasterBeard

Hello Polycaunt m8s.

I am modeling this wall and some strange X shadows are appearing. Brite and dark ones. I imagine its triangulation problem. How can i fix it?
I ve attached image with wireframe as well.
If someone can help that would be great
Thanks in advance.

Dan Powell

You have N-Gons.

Geometry must be either three or four sided for the low poly.

Simply put, you haven't triangulated everything. :-P

Dan Powell

It should look something like this..?

Scruples

I don't see any N-gons but I believe Dan is right about triangulating fixing it, I think whatever you baked in decided to turn some invisible edges/triangles resulting in slightly different normals. (as evidenced by the x-shapes in the center of some quads)

MasterBeard

Hello guys. Thank you for your replays.
Dan I do not have any N-gons really. Thats just a bad angle I have only tris and uads. and I cant make it a solid block cos some bricks ar sticking out too much. Actualy thats the idea behind that.
I will try to divide all quads in to tris. Thanks for the tip. will post a result soon.

Scruples. I baked this normal in 3d max. the thing is, I am making huge modular cathedral and this X maks are only on this piece.

Anyways. Thanks a lot for your help. I will try to fix it. Cheers

MasterBeard

Ok guys. The issue was fixed by dividing quads in to tris thanks for your support and help.

WarrenM

Yeah, write that in blood on the wall. ALWAYS triangulate before baking. If you don't, you're rolling the dice.

MasterBeard

WarrenM. That was so dark
Thanks for the tip

MasterBeard

Guys. I have new problem with normals on my brick wall.
I cant understand the reason they appear.
green cirlce part is ok but the red one starts to show strange shadow-alike artifacts. cant find the reason.
Please help

Quack!

Any time you get "X" shaped artifacts it is because your triangulation changed from when you bake to when you displayed. Like warren said, this is caused by NOT triangulating before the bake.

Your second error seems to be more of a shading/lighting error. What engine? Do you have a cubemap/lightprobe affecting the object?