Select
Select a value from multiple inputs based on a condition.
What it does
Select pulls a piece of data out of a table, a list, or a piece of geometry. A table reads out as rows, columns, a rectangular range, or individual cells. A list reads out as entries by index. Geometry selects points, edges or faces instead, writing that selection back onto the geometry as a group other nodes use as a mask: a transform, an attribute edit, a physics pin, anywhere a "which elements" input is needed.
An optional Modifier input picks again from whatever Select has extracted, by index or by key, so "get this column, then get this one entry from it" needs no second node.
When to use it
One row, one column, or a handful of cells out of a table
A single entry out of a list, by index or by name
Points, edges or faces selected on geometry and passed downstream as a mask, including a soft, falloff-graded selection rather than a hard on/off pick
Drilling one level deeper into an extracted result: wire the extracted value's index or key into Modifier
| Parameter | Type | Default | What it does |
|---|---|---|---|
data | Any | — | Table or List to select from |
mode | String | "Rows" | Rows/Columns: extract row(s)/column(s). Range: rectangular region. Cells: individual cells. All: entire table. Points/Edges/Primitives: geometry component selection. |
row | String | "0" | Select row by key or index. Use JSON array for multiple: [\"a\",\"b\"] |
column | String | "0" | Select column by name or index. Use JSON array for multiple: [\"a\",\"b\"] |
cells | String | "" | Selected cells as [[row,col],...] pairs |
selection | String | "[]" | Selected component indices (JSON array, e.g., [0, 1, 5, 12]) |
group_name | String | "selected" | Name of the selection group attribute |
xray | Boolean | false | When enabled, allows selecting geometry through occluding faces (like Blender's X-Ray mode) |
radius | Number | 0 | Soft-select falloff radius in world units. 0 = hard 1/0 selection; > 0 grades neighbouring elements by falloff distance from the picked set (proportional / soft selection). |
falloff | String | "Smooth" | Soft-select falloff curve (Smooth / Linear / Constant / Soft), applied when radius > 0. |
modifier | Number or String or Int[] | — | Optional: pick from the extracted result by index or key |
Gotchas
Row, Column, Cells and the geometry Selection field each accept either a single value or an array of them (["a","b"] or [0,2]) for a multi-select. A bare value still works for a single pick.
Raise the soft-select Radius above 0 to grade neighbouring points by falloff distance instead of a hard 1/0 pick. At Radius 0, the default, the selection is hard.
Selecting Points, Edges or Primitives removes nothing from the geometry. It writes a selection group, a weighted attribute named selected by default, onto the output. The geometry passes through unchanged; downstream nodes read the attribute as a mask.
X-Ray only affects picking through occluding geometry when clicking to select in the viewport. It has no effect on a selection typed or wired in directly.
Worked example
Add a Select node and wire a table into Data.
Set Mode to Columns and type a column name into Column to pull out that column as a plain list of values.
Switch Mode to Rows and set Row to
["0","2"]to grab two specific rows instead.Wire a number into Modifier to pick a single entry out of the extracted column or row.
For geometry, wire a mesh into Data, set Mode to Points, and drive Selection from the viewport or a value. The picked points come out with a
selectedgroup ready to mask a Transform.
See also
Lookup · Filter · Attribute Reader · Table