Hi,
I had an idea for a game I now want to check to see if it’s technically feasible. Here is what I want to do, I want to directly manipulate a 3d trajectory (perspective) curve/spline in game (real-time) that an object can then fire along. Does anyone know of a game with this type of mechanic, or does anyone know if it’s possible to use splines from Unity in this way?
It would be awesome if I could get anyone’s advice on this 
Check the Asset Store for various spline systems, I have one in there for example MegaShapes « MegaFiers
Very nice plugins! But what if I want to manipulate a curve on screen in real time? (obviously the curve would have its angle limits)
Lets say you have a 3d curve (in game) the curve has an icon in the center of it which you can touch with your finger and push it around which then adjusts the curve in a procedural way.
A better example, a game of cricket, If I wanted to make a cricket game from the POV of the bowler (English pitcher). I could use the curves to pre-plan his ball trajectories on my phone…
Is this possible?
Everything is possible, it’s a matter of programming it.
–Eric
All the spline systems available allow you to manipulate and create splines at runtime and and in realtime as Eric says its up to you and your ability, all assets in the store help achieve end goals but they all benefit greatly if you spend a little time using the systems with your own code to get the result you need.