These are several spline tools made in UE4. Some are meant for rapid prototyping, and some are production ready. The spline blueprints all have several parameters exposed for the user, in order to be as flexible as possible.
Spline Tools: 1. Landscape Cutout Tool, 2. Scatter Spline Tool, 3. Surface Crawler Spline Tool, 4. Dynamic Catenary Spline Tool.
Research project into L-Systems and their application. The gained knowledge from this project will be applied on a flexible organic procedural spline system I built in UE4. When combined, this should result in a blueprint tool that is systematically correct, but organic looking in appearance.
L-Systems: 1. Dragon Curve, 2. Cantor Set, 3. Fractal Plant, 4. Koch Curve, 5. Pythagoras Tree, 6. Sierpinski Triangle, 7. Algae.