Slight fold at tri seam in a poly

jackanimated

Hi all,

I'm getting a faint dark line where a poly would split into two tris. I have got all the vertices of the poly at identical height, yet still I see the line.

Any thoughts?

Noors

You have to use a different smoothing group in the little extrusion you made.
The normal of the vertice is averaged between the 2 faces at 90°, so vertex normal is at 45° instead of beeing up.
Put an edit normal modifier on top of your mesh and you'll get how it works.
You might want to look for information about gouraud shading, vertex normals, etc.

jackanimated

Good shout. Thanks man.