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Orient Curve

tools/orient-curve·v1.5.1

IN:1 OUT:1

SUMMARY

Orient Curve converts the input to line strips and carries a rotation-minimizing frame from point to point, so it never flips or spins where the curve bends and closed curves join without a seam. Each point gets N along the tangent, a perpendicular Up and the Orient quaternion that combines them.

The starting roll comes from the curve's own curvature or a fixed Up Vector, and the frame can be reversed or have N inverted. Twist Amount turns the frame around the curve, shaped by a ramp, a TOP or a point attribute. The frames feed Sweep, Move Along Curve, the Instancer's curve distribution and Visualize Frame.

PARAMETERS

PAGEOrient Curve

Group	Group	If there are input groups, specifying a group name in this field will cause this POP to act only upon the group specified.
[+]Direction	Direction	Determines the edge N follows. Next Edge follows the vertex order, Previous Edge reverses N and keeps Up.
Invert N	Invertn	Enable flipping N and Up.
[+]Seed Orientation	Seedorient	Determines the frame at each curve start: Curvature or Up Vector.
[+]Up Vector	Upvector	Sets the up direction when Seed Orientation is Up Vector.
Twist Amount	Twistamount	Twist along the curve, scaled by the twist ramp. Angles are given in degrees.
Open Twist Ramp Editor	Opentwistrampeditor	Open the editor of the twist ramp.
Reset Twist Ramp	Resettwistramp	Resets the twist ramp.
Custom Twist TOP	Customtwisttop	Reference to a TOP used as the twist ramp, overriding the ramp editor.
Twist by Attribute	Twistbyattr	Scale the twist by a point attribute instead of the ramp.
Twist Attribute	Twistattr	Sets the point attribute that scales the twist.

PAGECommon

Bypass	Bypass	Pass through the first input to the output unchanged.
Free Extra GPU Memory	Freeextragpumem	Free memory that has accumulated when output memory has grown and shrunk.

INPUTS

Input 0 POP - Input Curve

OUTPUTS

Output 0 POP - POPX Geometry