This may be a basic question, but I have been struggling with this problem for a few evenings now. I want to create a GN system where I have:
- a grid, with a noise node to create some displacement
- a curve with a radius
- instances along the same curve, that follow the direction of the curve but that are rotated according to the normals of the plane.
The set up works perfectly if my grid is completely flat, but as soon as I increase the noise to create some hill then the instances seem to be oriented randomly, and not along the normals of the distorted grid. I tried a lot of different systems, tried to apply many techniques I found also on other questions on here, but I am not sure why it doesn't work for me. How can I achieve this result?