Model-Based Control - Real-Time Rendering: Computer Graphics with Control Engineering - page 82

Graph of PID and SNPID Control Input

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Frame

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×10 4

0

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FIGURE 5.11 Control input from SNPID and PID controller.

captured the same input (vertex count) and output (frame rate) quantities of the ren-
dering process. The third experiment dealt with the application of the gain schedul-
ing control system described in Section 5.3.3 in a simulated environment.
All experiments were run on a desktop computer with an Intel Core 2 Quad CPU
at 3 GHz, with 8 GB of main memory and NVIDIA GeForce GT 320 graphics pro-
cessor hardware (with 4 GB video memory) on a 64-bit Windows 7 operating system.
The system identification toolbox was used for deriving the linear models of the
rendering processes. The control design toolbox was used for the design and analysis
of the feedback control systems.

FIGURE 5.12 (See colour insert.) Screenshot of application with PID control.