Null
Pass-through control point for organising the node graph.
What it does
Null is a draggable handle in the viewport, a crosshair that moves, rotates and scales, with no visual output of its own. It carries a transform (Position, Rotation, Scale, Anchor) for other nodes to read. Wire the combined Transform output into a Constrain node in Parent mode or any node's transform input, or take an individual value straight off a parameter's own output socket.
Label and Color make it easier to pick out in a busy scene. Nothing about it renders.
When to use it
One draggable handle in the viewport driving several other nodes' positions, rotations or scales at once
Parenting one part of the graph to another: Transform into a Constrain node's Parent input
A labelled control point, so collaborators can find the thing to drag without reading the graph
An anchor or pivot offset not tied to any particular shape
| Parameter | Type | Default |
|---|---|---|
position | Vec3 | (0, 0, 0) |
rotation | Vec3 | (0, 0, 0) |
scale | Vec3 | (1, 1, 1) |
anchor | Vec3 | (0, 0, 0) |
label | String | "" |
color | Color | rgba(1.00, 0.60, 0.20, 1.00) |
Gotchas
Position, Rotation, Scale and Anchor each expose their own output socket directly from the parameter row, so a wire can be dragged straight off any one of them without an explicit output pin.
Null has no visual output. Dragging it in the viewport moves the handle only. Nothing appears until its Transform, or one of Position/Rotation/Scale/Anchor, is wired into another node.
Anchor shifts the pivot that Rotation and Scale are applied around, not the handle's Position. Adjust it when rotating or scaling happens around the wrong point.
Worked example
Add a Null and give it a Label like "Light Rig" so it is easy to spot.
Drag the handle in the viewport to place the control point.
Wire Transform out to a Constrain node's Parent input to parent other nodes to it, or drag directly from Position's output socket to feed a Sample or Transform node.
Adjust Anchor if rotation or scale should pivot around an offset point rather than the handle itself.
See also
Hold · Router · Value Tracker · Scene values