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Table of Contents

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The term Scene Graph refers to a design algorithm and associated programming constructs that are widely used in computer graphics systems, such as video games. A Scene Graph uses a tree structure of image element nodes to define an interactive scene that is traversed to render an image, with the position of each node in the tree determining the z-axis rendering of the node image element; nodes lower in the tree structure are rendered over nodes higher in the tree. Each node in the tree structure is an object whose state is stored as attributes in a set of fields. As the tree is traversed, the rendering state is accumulated, so that the state of a parent node can control how the child nodes are rendered.

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