Sets the position vector of this vertex
overload 1:
Vertex:setPos(pos)
| Method Property | Fluent Description | Representation |
| pos accepts | a Vector3 | |
| Return Value | a Vertex | |
overload 2:
Vertex:setPos(x, y, z)
| Method Property | Fluent Description | Representation |
| x accepts | a Number | |
| y accepts | a Number | |
| z accepts | a Number | |
| Return Value | a Vertex | |