- after the arrow is animated, can i edit the control vertex to give the correct shape?
yes absolutely, just try to keep it centered
- the curve should have a lot of vertexes?
I suggest that you have enough to make it as smooth as you like
- after animating the curve.. i have problems when i want to make the surfaces smooth...
just follow the tutorial, the tessellation attributes only affect the surface at render time, that's why you have to turn on the RENDER TESSELLATION flag on so you can visualize how it will look at render time, try a test render and your surface will look nice
-i thought of clicking `rebuild surfaces` instead of the tessellations.. but it jerked up when it animated.
yeah, if you wanna do that, rebuild THE CURVE, the surface is based on the division of the curve, that will make it smoother, but, tessellation work great also, use what ever works best for you.