- modulator: It is possible to modulate the contrast of a stimulus to create second-order patterns. A common example would be a random noise texture modulated by the contrast of a larger-scale sinusoidal pattern.
- none: No modulator of contrast.
- sinusoidal: The contrast is modulated by a sinusoidal function.
- modulatorAmplitude: The amplitude of the sine modulator of the contrast. Value from zero to one. Time-dependent.
modulatorPeriod : The size period of the sine modulator of the contrast. Size property. Time-dependent.modulatorPhase : The phase of the sine modulator of the contrast. Angle property. Time-dependent.- modulatorRotation: The rotation of the sine modulator of the contrast. Angle property. Time-dependent.
- none: No modulator of contrast.
