color ramp

 

Defines a curve that maps an input position (0..1 along the X axis) to an output float value (Y axis) — useful for shaping falloffs, weights, easing curves, and any value that should vary smoothly across a range.

Click on the curve line to insert a knot. Drag knots to shape the response, and drag the tangent handles for finer control over Bezier-type knots. Right-click a knot to change its interpolation (Corner, Smooth, Bezier) or delete it. Right-click the grid for reset, invert, copy/paste, and preset shapes.

 

Shared shortcuts (curve + gradient)

Action	Shortcut
Select single knot	LMB click on knot
Toggle knot in selection (add or remove)	Ctrl + LMB click on knot
Rubber-band selection (additive)	Shift + LMB drag on background / bar
Move single knot	LMB drag on knot
Move whole multi-selection	LMB drag on any selected knot
Knot popup (Type, Delete)	RMB on knot
Grid popup (Reset, Copy/Paste, Invert, ...)	RMB on background / bar

 

Gradient-only

Action	Shortcut
Insert knot	LMB click on bar background
Open color picker	Double-click on knot
Remove knot	RMB on knot → Delete Knot

 

Notes

• Shift+click on a knot behaves the same as a plain click in both controls: replaces the selection with that single knot. Shift’s additive meaning is reserved for rubber-band on the background/bar.
• Ctrl+Alt+click is curve-only — carried over from earlier code. The gradient has no destructive-delete shortcut; use the right-click menu instead.
• Click-and-hold-drag on a selected knot preserves the multi-selection so the whole group can be moved. The selection only commits at mouse-up if no drag occurred during the press.
• Copy/Paste Knots lives in the grid/bar right-click menu (not the knot popup). Paste replaces all knots with the clipboard contents.
• Multi-knot drag behaves differently per control: gradient allows the group to swap past unselected middle knots (endpoints stay pinned); curve uses a strict clamp at unselected neighbours so the group cannot push past them.