Creating a Round Spiral in 3D environment

Hi guys. For my project I need to add this kind of mechanic to my game. I want to create a static object that changes depending on how long a key is held down. But this object must be a round spiral and It should extend upward depending on input. I did some research but I couldn't see any study on this subject. What kind of idea do you suggest,what should I do?

BTW: This spiral object should start as a dot in the scene. And It needs to have a collider

Thanks

 

If you're talking 2D I would just use a line renderer and add points to it going around a circle with an ever-larger radius.

If you're talking in 3D I guess do some procedural geometry creation?

 

I am talking about 3D. I will look into procedural geometry creation tho I dont have any idea how to even implement this to unity. But its a start I guess... Thanks.

I hope there are more different methods about this.

 

Unity is by far the easiest context to do procedural geometry. It is amazingly simple. In fact, I do it in a lot of my games so I decided to make a repo with random snippets of example code.

MakeGeo is presently hosted at these locations:

https://bitbucket.org/kurtdekker/makegeo

https://github.com/kurtdekker/makegeo

https://gitlab.com/kurtdekker/makegeo

https://sourceforge.net/p/makegeo

 

Thank you so much

 

TBH I think a LineRenderer is the easiest solution for 3D, too.

 

Do you have something in your mind? Spiral need to have a collider btw I forgot the mention it

 

Oh, yep that changes things. A LineRenderer definitely won't work with a collider. Nevermind