Hi Beppe! Thank you for providing this example file. I'm new to nodes so if you don't mind bearing with me. Using your file, I had a few questions:
1. When I scroll through the timeline, I see the texture changing but only after a very long period of time (sometimes several minutes), is there a way to have this update in real time?
2. Is there a way to make the cylinders adhere to the shape of the spline? Because as it stands, at specific angles the texture stretches out and is unusable. Example:
I did notice that your Octane does not have this:
Unsure how important that is.
I may be speaking through ignorance but it appears that when I open your file I only have one repition, and you have 6. I've made a video of me opening your project and added some additional (optional) context if interested:
https://youtu.be/7ZxDJiQ3BxU [HD is currently processing as of 2:55pm CST]. At the part when waiting for the texture to refresh you can skip 4:04 through 4:51.
Thanks again!