David Jacewicz

David Jacewicz

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SideFX Staff
Since Apr 2023

Recent Forum Posts

Having trouble with Scatter and Align SOP + Stamp Points COP Oct. 22, 2026, 12:10 p.m.

The stamps aren't clipped at UV island borders, but they aren't wrapping around the edges of the projection surface the way you expect. The current design of Stamp Points doesn't allow stamps to wrap across edges like this. Each stamp can be thought of as a flash light, and the output is where that flash light hit the `pos` map. In your setup these flash lights are directed perpendicular to the projection surface (the cube), which causes their projection to get cut off at the edges of the surface. In some cases it is possible to get closer to what you're expecting by directing the normals more smoothly, such as by setting `@N = normalize(pow(@P, 5));` so that the stamps are directed diagonally away from the origin.

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Having trouble with Scatter and Align SOP + Stamp Points COP Oct. 21, 2026, 6:24 p.m.

You need to set "Normal Direction" to "Z" in `/obj/geo1/copnet1/scatter/scatteralign1` to orient the stamps properly. Each stamp can be thought of as lying on its local Z=0 plane.

Hope that helps.