Each of Omnisphere’s LFOs can have its own waveshape. There are nine available LFO waveforms.

Sine – A smooth c-shape that begins positive and then curves negative and back again. Useful for sweeps and vibrato.
Triangle – Is a positive/negative-shape like the Sine, but without curvature. Useful for sweeps and vibrato.
Square – Starts at maximum positive value and then drops to maximum negative value. Useful for trills and pulsing effects.
*Rounded Square*– A smoothed Square wave. Ideal for smooth pulsing.
Ramp – A linear slope from highest to lowest to highest value. This waveform is also frequently referred to as a sawtooth wave. Useful for sweeps.
*Reverse Ramp*– A linear slope from lowest to highest value. This waveform is also frequently referred to as an inverted sawtooth wave. Useful for reverse sweeps
*Sample and Hold*– Steps through random values. Useful for analog synth effects.
Heartbeat – Modeled after a human heartbeat
Noise/Random – Similar to Sample and Hold, with random values, but doesn’t step, the values change immediately. Useful for adding chaos.

The waveforms can be changed by selecting the stepper buttons or by clicking on the waveform itself, which will display the waveform selection menu.