Normal from triangle

[nopeless]

Is it possible that the triangle's normal is automatically calculated from vertices? (using righthand orientation)

[hmeyer]

Yes, it is possible. And I'm open for PRs for this.

[cfpbiggs]

I submitted PR #25 which adds a constructor that allows you to create a triangle from just vertices, calculating the normal automatically. Let me know if it resolves this issue or if you are looking for a different implementation.