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Break VertexAndAttributes

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Adds a node that breaks a 'VertexAndAttributes' into its member fields

Vertex and Attributes

Vertex Instance ID

Vertex ID

Polygon Vertex Attributes

Inputs

Vertex And Attributes Structure (by ref)

Outputs

	Vertex Instance ID Vertex Instance ID Structure	The vertex instance ID to insert into the polygon, or FVertexInstanceID::Invalid to create a new vertex instance with the given attributes
	Vertex ID Vertex ID Structure	The vertex ID to insert into the polygon, if no valid vertex instance ID was supplied.
	Polygon Vertex Attributes Mesh Element Attribute List Structure	A list of polygon attributes to set for the vertex on the polygon we're inserting it into, if no valid vertex instance ID was supplied.

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