V2020.1.56.3_ Spline



Overview

This feature lets you draw a Spline in the scene, which is required in various other Prespective features.

Example of a Spline with three conrol points.


Where to Find

The Spline can be found under Utilities > Create

By default, a Spline with two control points will be created in the scene.


Feature overview

 

Spline Specs

 

Spline Specs

 

Close Spline

Makes the Spline closed-loop, leave unchecked for end-to-end

Spline Length

Displays the current Spline Length in meters

Spline Control Points

 

Auto-name Control Points

Automatically renames control points from 1 to n (where n is the number of points) if their order in the Hierarchy has changed

Add Control Points

Adds more control points to the Spline. New Control Points are added after the last Point of the Spline.

Spline segments

Define the default segment settings for new segments that are created

Default segment Color

Changes the color of a default segment in the scene

Default segment tesselation mode

The type of default tesselation (samples per unit of length or samples per percentage of length)

Default tesselation samples

The default amount of samples used for tessellation

#0: ‘Point[1]' → 'Point[2]’= 0.999999m

 

Segment Color

Changes the color of this segment in the scene

segment tesselation mode

The type of tesselation to use for this segment (samples per unit of length or samples per percentage of length)

segment tesselation samples

The amount of samples used for tessellation for this segment

Scene View Settings

 

Control Point Label Mode

Defines the type of labels used for the control points.

(none, name only, full info)

Control Point Label Text Color

Changes the color of a spline segment in the scene

Show Spline Normal Line

Whether or not to show the (green) normal line that describes the normal for every point on the spline

Show When not Selected

Whether or not show the Spline when it is currently not selected in the hierarchy

Select one of the Control Points in the Hierarchy to change specific Control Point values.

Conrtol Point Vector

 

Conrtol Point Vector

 

Handle Type

NONE: No handles and therefore no curvature

IN_ONLY: A handle for in-direction tangency. Adds curvature in the direction of the previous control point

OUT_ONLY: A handle for out-direction tangency. Adds curvature in the direction of the next control point

CONTINUOUS: A handle for in-, and out-direction tangency. Adds curvature through this control point in the direction of both the previous- and next control point, with the out-direction handle being the inverse of the in-direction handle

BROKEN: A handle for in-, and out-direction tangency. Adds curvature through this control point in the direction of both the previous- and next control point, with both handles individually definable

Handle Space

Sets the space (LOCAL or GLOBAL) in which to set the handle

Control Point Handle Limits

 

Use Handle Limits

Constrains the handles to a single plane

Handle Limit Space

Sets the space (LOCAL or GLOBAL) in which to set the handle limit plane

Handle Limit Plane

Sets the up-direction of the constraining plane

Control Points Up Direction

 

Up direction rotation

Sets the rotation (in degrees) of the control point normal relative to the match up direction

Match up direction

Sets the direction relative to which the control point normal is set

SPLINE_VECTOR

WORLD_DIRECTION

LOCAL_DIRECTION

up Match direction

The axis relative to which the spline normal is rotated

Sceneview Settings

 

show Normal X axis

Show the Normal X axis of the control point normal

show Normal Y axis

Show the Normal Y axis of the control point normal

show Normal Z axis

Show the Normal Z axis of the control point normal

show Gizmo when not in Selection

Show the control point gizmo when the point is not selected in the hierarchy

Normal Display Modifier

The distance in units from the spline to the spline normal

 


How to use

 

  1. To change the shape of the spline, select one (or more) control points in the scene by dragging a box around them using your cursor, or by directly selecting them in the Hierarchy. You can now move the points like any other object in the scene.

 

2. To add curvature to the Spline, select one (or more) control points, and select a Handle Type

3. After selecting a handle type, either drag a handle through the scene or manually set a position in the inspector to add curvature to the Spline.