Glossary

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Appendix F - Glossary

Channel - Represents data that changes over a period of time, typically changes every cycle. Though some channel types like sound may have multiple samples per cycle. Each sample can be a single numeric value (like pressure) or have multiple values per sample, such as the X/Y/Z position of an object, multiple audio channels, or image raster composed of millions of pixels.

Child-Node - A node attached at any branch level other then zero. Not a root node.

Node - A single object in the scene. Can be a root-node or child-node. A child is considered a different node then its parent object. The pins, grids, lights, and cameras are all different types of nodes.

Orthogonal - Similar to perpendicular but in 3D or higher dimensions. For example, two planes that intersect at 90 degrees are orthogonal. For more info search 'orthogonal basis' in context to linear algebra.

Parent-Node - All child nodes are attached to a parent, which is the next branch level down the tree, root nodes are branch level zero.

Perpendicular - Two lines are perpendicular if they cross at 90 degree right angles, similar to orthogonal but only in 2D.

Pin - Tree graph data structure with root-pin and all its Child-Nodes.

Primitive - Geometric objects such as cube, sphere, cone, torus and pin.

Root-Node - The base object (or trunk) of of a tree (graph) of objects.

Root-Default - the first object in the node array, unused.

Root-Camera - all cameras are attached to the root camera.

Root-Grid - all grids are attached to the root grid. *may change this to allow standard nodes to mix topo types with grids.

Root-HUD - *contains all HUD elements with node mapping.

Root-Light - all lights are attached, lights can track objects.

Root-Pin - Any base object of a pin, by default looks like an ice-cream cone, but can be changed to other geometric primitives. Is a specific type of root-node.

Topo - Short for 'topology' which is used to determine the coordinate system and is typically associated with a geometry such as cube, sphere, torus, etc... May represent a set of any dimensional basis with associated dot and cross products.

Topology - see 'Topo' for definition in this context.

Tori - Multiple toroids.

Toroid - Same as torus.

Torus - A geometric object in the shape of a donut or ring.

*additional terms to be added.