Fredospline and tangents

rosetter

I'm trying out the demo version of fredospline.

First, excellent plugin! Clearly a lot of work went into the design and implementation.

Second, I'm having trouble creating splines the way I would in almost every other DCC tool.

I was hoping to:

click to define vertices on the curve
control the angle and magnitude of tangents at each vertex
optionally control independently the tangents of each curve segment before and after the vertex

With "local fit splines" I can almost do this, but I think I can't control the magnitude.

Right now I'm trying to create geometry to match a reference image. This type of control is ideal... which is probably why most DCC packages work this way.

I hope I'm just missing something, or there is an easy workaround...

I've tried creating each curve segment independently with cubic beziers, but matching the tangents to achieve continuity is quite difficult.

Thanks for any suggestions!

fredo6

@rosetter said:

With "local fit splines" I can almost do this, but I think I can't control the magnitude.

You can control the weight of the control point by mousewheeling on the small pin. This changes the curvature for the previous section. Do the same ith the next control point to change the curvature on the other side.

rosetter

@fredo6 said:

You can control the weight of the control point by mousewheeling on the small pin. This changes the curvature for the previous section.

Thanks for the reply!

I tried this, but it seems to change the "tension" value for the entire segment.

I was hoping for controls like this:

This is from Unity, but most 2d and 3d packages have a similar UI.
You can control the magnitude and direction of the tangent on each side of each segment endpoint.

For a cubic bezier this corresponds to the "inner" two control points.

It's a pretty standard UI .. is there some reason you didn't implement this in FredoSpline?

Thanks!
Tyler