Double Question - Bezier Drawing & Particle Follow Surfaces

Hey folks! I haven’t posted here before (this is the right place, correct?), but I have recently become better acquainted with TouchDesigner on a professional level, but have mostly used it as a sketch tool to build mini prototypes for clients. However, as I’ve gotten better, I realize more gaps in my knowledge that I’m not sure I can overcome with just the native tools alone; meaning perhaps I need more know-how in GLSL, Python, or other alternatives I’m not familiar with to achieve what I am looking to do. Or perhaps I don’t! And hopefully you nice people can help point me in better directions.

Back story, I come from a Motion Design background, so I’m not so much of a coder, but more of a savvy technical designer who can usually get by with extensive Google searching, but those skills are failing me here.

As the topic suggests, I’d like to achieve results similar to the following video links in real time from within TouchDesigner:

Bezier Nodes (:15-:19 specifically)
vimeo.com/282756976

Particle Follow Surface/Mesh (video is an X-Particles from Cinema 4D tutorial)
vimeo.com/104838629

For the Bezier, I have thoughts on getting the general look, but it would be awesome to do something dynamic and live that the user could interact with by using their mouse or controller/wand.

As for the particles, it would be great to achieve that wrapping effect, but also with splines. I am hoping to use an invisible mesh surface to attract particles into wrapping around said mesh, revealing its shape over time, and then flowing away when they finish. Bonus points if the particles can have nice solid vector feeling contrails similar to the Bezier Nodes video. Maybe something as simple as the feedback effect?

Thoughts? Hopefully this discussion can prove useful for others in the future looking to achieve similar results. Thanks!!

To reduce the question a bit (sorry to double-post), if anyone has some great resources on controlling and attracting particles to generate images from particles, that would be a great help also.

Attached a video I rendered in C4D X-Particles to get the idea across.

Beyond that, for the bezier, it would also be helpful if there’s some good resources on parented line points to specific SOP xyz points. Making those lines S-curve and move dynamically would also be a huge help.

Sorry, and thanks again!
PersonPreViz-Octane_XP_01.mp4 (6.37 MB)