graphene:euler-init-from-euler (euler source)

euler -- a graphene:euler-t instance to initialize
source -- a graphene:euler-t instance

The initialized graphene:euler-t instance.

Initializes a graphene:euler-t instance using the angles and order of another graphene:euler-t instance. If the source argument is nil, the graphene:euler-t instance will be initialized with all angles set to 0.