Spline Tools

This repo represents a set of tools to generate representation of splines and curves to render within Unity. Currently, the tool can generate and store a collection of sampled points along a CatmullRomSpline.

More spline types are to come!

QuickStart

Simply attach a PointsContainer to any gameObject and create points.

Fields

• Type: The kind of spline to generate
• Loop: Should the spline loop?
• LineSegments: How many segments should each subspline be splitted into?
• HandlesSize: The size of the movement handles within the Scene
• HeightClamp: What should the heights of all spline be?
• LineSpacing: The far should the space between each line segment be for the preview?
• HandlesColor: The color of the handles.
• LineColor: The color of the preview lines.
• NormalColor: The color of the preview normals.
• Points: The series of control points to generated the spline.

SceneView

Dependencies

• Unity
• C# 7.2
• .NET4.6

Upgrading to C# 7

In Player Settings, ensure your

• Scripting Runtime Version is .NET 4.x Equivalent
• Api Compatibility Level is .NET 4.x

If you're having compilation errors, in your *.csproj files try editing from

<PropertyGroup>
  <LangVersion>6</LangVersion>
</PropertyGroup>

to:

<PropertyGroup>
  <LangVersion>latest</LangVersion>
</PropertyGroup>

You can replace latest with 7 if you chose to do so.

Notes

This is an experimental repo for me to explore so expect optimizations and refactors. I do use C# 7, so Unity should be targetted on the .NET 4.6 runtime instead of 3.5.

Potential Uses

• Road generation/previews

Limitations

Only looped CatmullRom Splines have array buffers which are properly calculated. If you want to write to a buffer for non looped CatmullRom Splines, use an IList<Vector3> instead. You should have enough points to generate the splines.

Immediate Goals

• Tests to check the math of creating buffers [In Progress]
• Safety checking
• Burst compiler ready

Potential Future Goals

• Procedural mesh generation
• Editor Windows