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Sweep Node

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I create a simple line and curve and then sweep I get square nice geo but when I use a curve that is perpendicular to the grid I get twisted geometry.

Why is this ???




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turn the resample in your file to something like 50. click on the sweep node and under the output path turn skin output to "off". Now with the sweep node visible (blue flag), click on the transform1 SOP above it and slowly change the rotate Y values. You will see how the copies of the line become oriented to the curve they are swept against more end to end. Sweeping between two (or several) curves from end to end instead of side to side will end up giving you a messed up output.

A lot of Houdini operations use the +X axis as the zero point for copying items



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