Twist
Rotates the cross-section progressively along the height of the object. The bottom stays fixed while the top rotates by the specified angle — every height in between gets a proportional rotation, creating a smooth helical deformation.
Twist is a structural effect — it always applies to both the inner and outer walls, regardless of the "Inner Follows Effects" setting.
Parameters
Angle (\u00B0)- Total twist from bottom to top in degrees (\u2212720 to 720). Positive values twist counterclockwise when viewed from above. 360\u00B0 = one full revolution.
How It Works
For each vertex, the effect computes a rotation angle proportional to the vertex height (V coordinate). The vertex XY position is rotated around the central axis by this angle, while Z remains unchanged. At V = 0 (bottom), the rotation is zero. At V = 1 (top), the rotation equals the full Angle value.
Because the rotation is applied to the XY position directly (not along normals), Twist is a global deformation that reshapes the entire silhouette. Other effects applied before Twist will be twisted along with the mesh. Effects applied after Twist operate on the already-twisted geometry.