Curve Widget

../../../_images/interface_controls_templates_curve_ui.png

Curve widget.

This widget is used to edit two types of curves:

  • Profile curves that simply describe a two-dimensional shape.

  • Mapping curves that map an input value on the X axis to an output value on the Y axis.

The available options are slightly different depending on this type. Also, unlike profile curves, mapping curves can’t have overhang: each X value must correspond to exactly one Y value.

Control Points

Like all curves in Blender, the curve in this widget is defined using control points.

Add

Click LMB anywhere on the curve where there is not already a control point.

Move

Drag the point with LMB.

Remove

Select the point and click the button at the bottom right. Alternatively, press X.

Controls

Zoom In

Zoom in to show more details and provide more accurate control. To navigate around the curve while zoomed in, click and drag with LMB in an empty area.

Zoom Out

Zoom out to show fewer details and view the curve as a whole. You cannot zoom out further than the clipping region (see Clipping below).

Reverse Path Profile Curves

Mirror the curve around the diagonal.

Clipping Options Mapping Curves
Use Clipping

Force curve points to stay between the specified values.

Min X/Y and Max X/Y

Set the minimum and maximum bounds of the curve points.

Specials
Reset View

Zoom the view all the way out.

Extend Options Mapping Curves

Controls how the curve is extended before the first point and after the last point.

Extend Horizontal

Causes the curve to “go flat.”

Extend Extrapolated

Causes the curve to maintain its direction.

../../../_images/interface_controls_templates_curve_extend-horizontal.png

Extend Horizontal.

../../../_images/interface_controls_templates_curve_extend-extrapolate.png

Extend Extrapolated.

Reset Curve

Resets the curve to the default (removes all added points).

Handle Type

The handle type of the selected control point. This determines the shape of the curve segments around it.

Auto Handle

Results in a smooth curve without the need to manually set up handles.

Vector Handle

Results in straight lines and a sharp corner.

Free Handle Profile Curves

Shows freely movable Bézier handles that are independent of each other. This can result in a sharp corner at the control point.

Aligned Free Handles Profile Curves

Shows freely movable Bézier handles that are locked together to always point in opposite directions. This ensures the curve is always smooth at the control point.

Auto Clamped Handle Mapping Curves

Like Auto Handle, but also prevents overshoot.

../../../_images/interface_controls_templates_curve_handle-vector.png

Vector Handles.

../../../_images/interface_controls_templates_curve_handle-auto.png

Auto Handles.

../../../_images/interface_controls_templates_curve_handle-auto-clamped.png

Auto Clamped Handles.

X, Y

The coordinates of the selected control point.

Delete X

Remove the selected control point. The first and last points cannot be deleted.

Copy/Paste Ctrl-C, Ctrl-V

The whole curve can be copied from one Curve Widget to another by hovering over it and pressing Ctrl-C, Ctrl-V.

Presets Brush Curve Widgets Only

A number of preset curves that the curve can be set to. The exact shape depends on whether the default curve for the property has a positive or negative slope.

Custom Preset Types with Positive Slope.
../../../_images/curve_smooth_positive_preset.png

Smooth

../../../_images/curve_round_positive_preset.png

Round

../../../_images/curve_root_positive_preset.png

Root

../../../_images/curve_sharp_positive_preset.png

Sharp

../../../_images/curve_linear_positive_preset.png

Linear

../../../_images/curve_constant_preset.png

Constant

Custom Preset Types with Negative Slope.
../../../_images/curve_smooth_negative_preset.png

Smooth

../../../_images/curve_round_negative_preset.png

Round

../../../_images/curve_root_negative_preset.png

Root

../../../_images/curve_sharp_negative_preset.png

Sharp

../../../_images/curve_linear_negative_preset.png

Linear

../../../_images/curve_constant_preset.png

Constant