A jittered curve smoothed in a geo/PointBuilder, where code/Attribute reads each point's two neighbours by index, from the curve as it came in.
code/Attribute geo/PointBuilder
Documentation / Node reference / geo nodes
geo/PointBuilder
Runs the code nodes inside it once for every point of its first input.
Builder
Dive inside and read point attributes with code/Attribute, work on them with any code node, and write the result back with a code/Attribute whose value input is wired. Several attributes can be written at once.
The first input is the geometry it visits; the three after it are read only. To read one of them, set a code/Attribute's input index to 1, 2 or 3. An input holding points answers the point nearest to the position you give the read (or, under the same-index lookup, the point with the same index as the one being visited), and an input holding a volume is sampled smoothly at that position.
The backend picks where the code runs: on the CPU, or on the GPU as a compute shader. Both give the same result.
Parameters
| Name | Type | What it does |
|---|---|---|
| backend | UInt8 CPU · GPU | Where the code runs: CPU, or GPU as a compute shader. Both give the same result; the GPU wins on large point counts. |
Examples
Scenes you can open in the editor that teach this node.
Points coloured inside a geo/PointBuilder by the density of a sphere's volume wired on its second input, read at each point by code/VolumeSample.
code/VolumeSample geo/PointBuilder geo/VolumeCreate
A geo/PointBuilder samples a picture made in TEX at each point's UV and writes it into the point colour: a star on a gradient, painted around a sphere.
geo/PointBuilder code/TextureSample2D code/Param code/Sampler
A line bent into a helix, read as a curve in space and given a thickness: one exact field, with nothing swept and nothing stitched.
geo/SDFCreate geo/SDFOffset geo/PointBuilder
See also
This page is generated from the engine, so it describes the release you can download. The same text is in the editor's Help panel next to the node itself.