Introducing LavaBeats - #428
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July 30, 2026 11:37
This is a utility to construct the LavaBeats haptic effect from pulse parameters that represent the QRS and T wave biomarker in an EKG
This encapsulates the business logic of playin the haptics beat effect as well as handling the graphical visualization triggers and logic
This is the runtime fragment shader that renders the graphical representation of a lava lamp, which beats at the same rythm of the haptic beat effect
This is the display of the runtime shader
These control the haptic effect parameters, which are also used to control the fragment shader visualization timings and beating
This finally adds the LavaBeatsScreen and introduces the demo into the samples app
JuanSMartinez
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alabiaga,
ashnohe,
madebymozart and
yrezgui
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July 30, 2026 21:26
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LavaBeats is an educational self-contained app that demonstrates the design of a complex haptic signal using advanced haptic PWLE APIs. By mapping bio-markers of a typical EKG signal into amplitude and frequency segments, the app is able to compose a vibration that beats and resembles the pulses of a beating heart. To accompany the haptic effect, the app has a "lava lamp" visualization that beats at the same rhythm as the haptic effect.
Users can modify the settings of the effect by changing amplitudes, frequencies, delays, number of beats and beats-per-minute to emulate different beating patterns and sensations.
This app will also have a section in the Android haptics public documentation, which will detail the design process and the mapping between biomarkers and haptic signal parameters.