Twist
Twist is a global transform: it runs on the entire form after every effect and modulator has been applied. Each horizontal layer is rotated around the vertical (Z) axis, and the rotation amount changes smoothly with height so the solid spirals from bottom to top. Positive values twist one way; negative values twist the opposite way.
Preview
Effect Controls
Interactive preview is available in the interactive reader.
Parameters
Rotations- Total twist from bottom to top, in full 360° turns (−5 to 5). Positive = counterclockwise when viewed from above; negative = clockwise.
Center Height- Height where twist angle is zero, as a fraction of total height (0 to 1, shown as a percentage). Layers below and above rotate in opposite directions from this pivot.
How It Works
Twist does not act like a per-layer modulator. The engine applies it as a single spatial warp after the mesh is built: at each height, the cross-section is rotated around Z by an angle that depends on that height and your Rotations and Center Height settings. TransformUIPreview shows how these parameters interact on a reference shape.
Multiple global transforms run in list order (top to bottom under Transforms, in the order they were added). Removing and re-adding a transform changes its position and therefore the final silhouette.