Hello guys,

I'm building a pseudo-procedural racetrack.

The tarmac is made with a sweep along a curve. The red and white turns are made on a separate curve.

I am facing two problems:

1. How can i make the sweep to apply only on the turns points of the turns curve. I tried grouping but it doesn't work. I also tried after grouping the turns points to apply an Add SOP and after that the Sweep but it also doesn't work. I really don't want to use lots of Sweep SOPs?

In an ideal world of proceduralism:
2. What is the best approach to made the red-white turns based on the racetrack curve (now i am using a separate curve)?

Thank you very much.

Here is a kind of kludgy way to handle this. Instead of using the Sweep try using a Copy followed up by a Skin. In your scene I have added a couple of Attribute Wrangles to make a custom scale for each of the copies. The candidates that are in the turns_only group get the default scale of 1.0. All other candidates get 0.01. So the Skin still creates them but they are much smaller. You might be able to take the non-turn-candidate scale even lower?

Thank you for the tip! I will play with your example.