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I am trying to make a procedural bridge, is their a way that I can rotate these planks along the curve.

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4 Answers 4

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Just use the Curve to Points node, because it will give you the rotation you want right away.

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you can use the Curve tangent node and the align euler to vector

geometry nodes

nodes result

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you need an align eula to vector node and plug in tangent or normals. for that you need curve to points instead of resample enter image description here

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  • $\begingroup$ You don't need the Euler to vector in this setup, you can just plug the "Rotation" output of "Curve to Points" into the "Rotation" input of "Instance on Points." $\endgroup$ Commented Sep 30, 2023 at 0:32
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This method worked well. Objects are randomly extracted from the collection.

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