Channel Modifier curves remap DMX output values non-linearly, enabling LED linearisation and channel parking

Channel Modifiers apply a transfer-curve to a channel’s computed DMX value before the Grand Master and physical output. The curve maps input to output DMX values (0–255) using drag-able handler points. Templates: Always Full/Half/Off (park a channel), Exponential and Logarithmic curves (compensate LED non-linearity — logarithmic improves perceived linear fade), Inverted (reverse Pan/Tilt motor direction), Preheat (keep a lamp at 5% minimum), Threshold (convert dimmer to binary on/off). Custom templates are saved to the user folder.

Examples

Applying ‘Logarithmic Medium’ to an LED fixture’s dimmer makes software fades appear visually linear instead of dipping too quickly near zero.

Assessment

A fixture’s pan motor responds in reverse. Which modifier template fixes this without editing the fixture definition? When would ‘Preheat 5%’ be used?