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The thing is that when I do the render I don't know why the curves aren't visible and that's why I turn them into a mesh haha. maybe some confirmation i have checked.

I don't know if it shows up by default (looks like a string). Did you play around with the Geometry settings?

Screenshot_20220408_084338.jpg

The settings in my screenie above are super basic and will just make the curves thick so they render. I used them in one of my dreadlock experiments which resulted in

Screenshot_20220408_085159.jpg

this was also when I was mucking around with cel shading and then this project had a stylistic shift and I ended up back at particle hair

You can use different helper objects to give them different shapes. Search terms along the lines of "blender stylised hair with curves", there seem to be a few videos that should show you how to achieve various looks.

That type of hair is great, someone gave me some well-crafted nodes and I almost always use them. but I don't know what the problem is with the render that is not seen.

image.png

That is a pretty cool node tree!

So what's the problem, the brown "hair" isn't rendering? What does the curve settings panel look like? Is there a thickness to the geometry? I don't think the curves will show up in the render (or maybe they're there just very hard to see) unless extrude and/or bevel (in the screenie that I posted last comment) are greater than 0.

Also maybe try checking the Path Animation checkbox if it's not already checked on, I don't actually know if you need that or not but it's on in my thing ^_^;

lol I use them, but then I convert them to a mesh because they don't show up in the render. I don't know why, another thing, I have to learn to animate them XD

Oh that one is easy, bone hook each control point :D apparently you can also animate curves as cloth but I haven't figured that one out yet.