Computer Graphics Programming - Pre-final Exam

scene graph

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.

nodes

tree consists of elements called __, with each node links to its successors

child nodes

The successors of a node are its

parent

while the predecessor of a node is called its

root node

Each child node has exactly one (1) parent except for a special node called the

root node

the tree’s topmost node.

model matrix

stores the current location, orientation, and scale of an object.

transform

the current location, orientation, and scale of an object are collectively referred to as the __ of the object.

world transformation

The transform of an object relative to the root of the scene graph

root node

Each child node has exactly one (1) parent except for a special node called

model matrix * each of its ancestors

world of transformation can be calculated from the

scene graph structure

allows simple geometric shapes to be grouped together into a compound object that can be easily transformed into a single unit.

parent node

Transforming the __ affects the entire table object.

single object

a __ can have several connections to one or more parent object

scene graph framework

allows you to create interactive scenes containing complex objects

scene graph framework

the nodes represent objects located in a three dimensional space.

vertex array object (VAO)

associates vertex buffers (whose references shall be stored by attribute objects stored in the geometry) to attribute variables (specified by shaders stored in the material).

vertex array object (VAO)

This will allow geometric objects to be reused and rendered with different materials in different meshes.