Would be super cool if it would be possible to define a start and end ratio for lines. Would boost the possibilities for animations a lot IMO.
See this asset: https://assetstore.unity.com/packages/tools/modeling/data-renderer-2d-102377 (4th picture)
Ah, like a reveal parameter!
This is something I've been wanting too, we'll see! It's one of these global things that's a bit of a multiplier to other shapes. As in, if I add reveal to Line and Polyline, people will (understandably)expect to have a reveal parameter on all other shapes too, but maybe we can start with the more useful ones
the tricky part for me with the reveal parameter is that almost all reveal effects can be implemented already as is, as an animation of existing parameters
revealing lines is animating point B from start to end
revealing arcs would be animating angle B from start to end
revealing discs would be animating radius from 0 to r
etc.
And so having this as an actual shader property feels wasteful, but if it's not, it would be a sort of, pseudoproperty, that doesn't actually get passed to the shader, but rather modifies the input data before being rendered
There are some exceptions, but it makes me a little hesitant since it amounts to adding meta-features, which I'm worried about when it comes to scope, which is the same reason I don't add meta-shapes (wireframe cube, outlined rounded arc, etc)
A performant reveal feature for polylines would help me a lot too! Even if its just on a line segment basis (reveal segment by segment), but a continuos option would of course be fantastic. Thanks for considering it!
By ratio, do you mean being able to set the thickness of each end of a line shape?
(polylines already support setting width per-point)