頂点 ちょうてん法線 ほうせんではありませんでした
chōtenhōsendewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 頂点法線

1. Was not the normal at the vertex.; Was not a vertex normal.

Past/Perfective
Negative
Polite
Formal Register
Computing