Sculpture Morph Envelope sustain and loop in Logic Pro for iPad

The Sustain Mode pop-up menu lets you choose one of the following modes: Sustain, Finish, Loop Forward, Loop Backward, Loop Alternate, and Scan via CtrlB.

When in any of the loop modes, the loop cycles between the Loop and Sustain points that you set with the Sustain Point and Loop Point controls. The Morph Envelope can, like any envelope, run in one-shot mode—it runs normally, for as long as the note is sustained. It can also run several times, or in an infinite cycle, much like an LFO. You can achieve the latter through the use of loops.

Morph Envelope Sustain and Loop parameters

Sustain Point knob: Set one of the morph envelope control points (gray dot positions in Morph Envelope XY pads 0-8) as the Sustain point.
Loop Point knob: Set one of the morph envelope control points (gray dot positions in Morph Envelope XY pads 0-8) as the Loop point.
Sustain Mode pop-up menu: Choose the behavior of the Morph Envelope while a note is held. See Morph Envelope Sustain and loop.
- Finish: The Morph Envelope runs in one-shot mode from its beginning to its end—even if the note is released before the envelope has completed. The other loop parameters are disabled.
- Loop Forward: The Morph Envelope runs to the Sustain point (set with the Sustain Point knob) and begins to repeat the section between the Loop point (set with the Loop Point knob) and Sustain point periodically—always in a forward direction.
- Loop Backward: The Morph Envelope runs to the Sustain point and begins to repeat the section between the Sustain point and Loop point periodically—always in a backward direction.
- Loop Alternate: The Morph Envelope runs to the Sustain point and returns to the Loop point and back to the Sustain point periodically, alternating in both a backward and forward direction.
- Scan via CtrlB: The timeline position within the Morph Envelope is disconnected from normal, real-time operation, enabling you to manually scan the overall time range with the MIDI controller assigned to Ctrl B (in the MIDI controllers section).
  Note: If one of the three loop modes is selected, and the Loop point is positioned before the Sustain point, the loop remains active until the key is released. Following key release, the envelope then continues beyond the Sustain point, as usual. If the Loop point is positioned after the Sustain point, the loop begins as soon as the key is released, and cycles continuously until the complete voice has finished the amplitude envelope release phase.

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Logic Pro User Guide for iPad

Sculpture Morph Envelope sustain and loop in Logic Pro for iPad

Morph Envelope Sustain and Loop parameters