Beta (Inputs.Recipes)BetaOptionalrecipe: RecipeOptionalnode: numberOptionalmatrix: TransformMatrixBetarecipeThe recipe the node belongs to, as recipes.read gives it; one without nodes is refused.
Optional BetanodeThe position of the node to follow in the recipe's nodes, such as a root's node.
BetamatrixWhat places the node, as a column-major 4 x 4 matrix of 16 finite numbers, such as its
root's matrix; anything else is refused.
A node of a recipe for
recipes.sourceOf, which follows it through the transforms that only turn and move to the step it places, with the matrix that places the node.