graphene:vec4-init (v x y z w)

v -- a graphene:vec4-t instance
x -- a number coerced to a single float for the x field of the vector
y -- a number coerced to a single float for the y field of the vector
z -- a number coerced to a single float for the z field of the vector
w -- a number coerced to a sindle float for the w field of the vector

The initialized graphene:vec4-t instance.

Initializes a graphene:vec4-t instance using the given values. This function can be called multiple times.