Toggle Cyclic Twisted Curve
We're trying to implement Blender in our pipeline to design roller coaster tracks, but we currently cannot do this simply because you can't close a twisted curve.
If you make a twist on the curve, and you want to close it
when you toggle cyclic, it interpolates the tilt from the last tilt to 0° (which is reasonable).
To solve the issue we would need to set the number of turns to close the curve.
For instance: 1 turn > 360° ; 2 turns > 720° ; -1 turn > -360° ...
This is an example of the problem, we can't close the track (made with geometry nodes, based on a curve object)
3 Comments
This probably can be solved within GN (geonodes, since they are so powerful), but Blender should definitely have a non-GN way to solve this, since not all workflows are compatible with GN.
Thanks Tomas, solving the geometry of the track with Geo-Nodes doesn't solve the problem of the curve itself though, which have to be usable as path; besides, the guys who design Roller Coaster can't use Blender at all; I must provide a tool ready to use without having to use hacks
Feel free to suggest ways around. I already tried to add a last point to the curve and overlap it to the first point, this solve the problem with geometry nodes, albeit in an ugly way, but the curve can't be used as a path for the roller coaster train.