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Houdini is a 3D animation software application developed by Toronto-based SideFX, who adapted it from the PRISMS suite of procedural generation software tools. The procedural tools are used to produce different effects such as complex reflections, animations and particles system. [ 2 ]
A node graph in the context of software architecture refers to an organization of software functionality into atomic units known as nodes, and where nodes can be connected to each other via links. The manipulation of nodes and links in the node graph can be often be accomplished through a programmable API or through a visual interface by using ...
record Node { data; // The data being stored in the node Node next // A reference [2] to the next node, null for last node } record List { Node firstNode // points to first node of list; null for empty list} Traversal of a singly linked list is simple, beginning at the first node and following each next link until reaching the end:
In vector-based graphics editing, each leaf node in a scene graph represents some atomic unit of the document, usually a shape such as an ellipse or Bezier path.Although shapes themselves (particularly paths) can be decomposed further into nodes such as spline nodes, it is practical to think of the scene graph as composed of shapes rather than going to a lower level of representation.
The dominance frontier of a node d is the set of all nodes n i such that d dominates an immediate predecessor of n i, but d does not strictly dominate n i. It is the set of nodes where d 's dominance stops. A dominator tree is a tree where each node's children are those nodes it immediately dominates. The start node is the root of the tree.
Cryptomatte images can be created by several 3D graphic programs like Blender, [2] Autodesk Maya, [3] Autodesk 3ds Max [4] or Houdini [5] and are usually exported using the OpenEXR file format. Whether a program is able to generate a cryptomatte or not is determined by the render engine being used.
Focusing on crossing nodes (ends of edges that cross the boundary of , or ), the access nodes for are those nodes of that are part of a shortest path from some node in to a node in . As access nodes for an arbitrary node v ∈ C {\displaystyle v\in C} all access nodes of C {\displaystyle C} are chosen (red dots in the image to the right).
When each node finishes recursing, if its lowlink is still set to its index, then it is the root node of a strongly connected component, formed by all of the nodes above it on the stack. The algorithm pops the stack up to and including the current node, and presents all of these nodes as a strongly connected component.