Howdy, for numerous Alpha Erosion and Smoothstepping functions I generally must create a “path” and I want it mapped from black to white by following the trail path.
For “linear” stuff it’s no subject because it’s only a matter of overlaying a gradient with a sure angle, however i’m puzzled relating to how I could make this gradient comply with the path of a path.
I’m including a horrible drawing I rapidly painted, in hopes of creating my query extra comprehensible.
Anybody received an thought?
P.S: Bonus factors if I don’t have to make use of Adobe Illustrator 
but when there’s a method to do it there, I’m up for it!
Perhaps I misunderstood your query, however so far as making ready a curve for sport VFX, you must uv flatten your uv-s earlier than bringing it to a sport engine.
From this
To that.
You then use a texture coordinate gradient node within the materials editor like this to get a gradient from starting to finish.
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