Applications, Challenges, and Possibilities - Real-Time Rendering: Computer Graphics with Control Engineering - page 101

Network
Processes

Main Process

Instantiate local
memory for
variables()

Create network
Send/Receive threads

Receive: network listen
Send: send data (output)

Create device
rendering and
I/O callback
functions

Initialize application
and create rendering
window

Frame rate
Main rendering
loop

Rendering input
changes

FIGURE 7.1 The timing diagram of the rendering application used in the control system.

7.1.1 s oftwaRe d esign

One key requirement for implementing a control system involving a real-time ren-
dering application is that code level access is a primary task for the system to achieve
the following:

1. A form of interprocess or shared memory communication can be established
between the rendering application and the controller.

2. Input and output data points from selected variables can be tapped.

3. A form of rendering load control can be implemented.

Figure 7.2 shows a high-level componentised view of the rendering application used in
the experiments in this chapter. In addition to the main rendering components, other