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Chapter 11
11. Sensors
Sensors are used to detect one of the following:
• Time passing.
• Pointer device events.
Sensors are often implemented to perform one of the following tasks:
• Trigger an engine at a specified interval (csTimeSensor).
This task is most commonly used to animate geometries.
• Generate rotations based on pointer device events (csSphereSensor).
• Generate translations based on pointer device events (csPlaneSensor).
• Determine whether the pointer device cursor is over a geometry (csTouchSensor).
This chapter explains how to implement sensors in the following sections:
•“csTimeSensor” on page 122.
•“csSphereSensor” on page 126.
•“csPlaneSensor” on page 130.
•“csTouchSensor” on page 134.