Computer Graphics Engineering Prefinals Reviewer

Scene Graph

Heart of a 3D graphics framework. A data structure that organizes the contents of a 3D scene using a hierarchical or tree-like structure

Tree

Represents a hierarchical nature of structure in a graphical form. It consists of elements called nodes

Child Nodes

Successors of a node

Parent

Predecessor of a node

Root Node

This node is the tree’s topmost node. It has no parent

Model Matrix

The accumulated transformations applied to an object are stored as the product of corresponding matrices, which is a single matrix. It effectively stores the current location, orientation, and scale of an object

Transofrm

It is the current location, oritentation and scale of an object

World Transformation

The transform of an object relative to the root of the scene graph, can be calculated from the product of the model matrix of the object and those of each of its ancestors.

Nodes

Represents objects located in a three-dimensional space.