Spline Mesher Standard vs Pro

Spline Mesher originally released in March 2024, a complete rework of a proprietary tool for Unity’s splines package.

Over its development, certain desired features came to light. Many of them were implemented through complementary updates. Yet the larger features, such a Job system usage and contour meshing, required substantial R&D and restructuring. These features were prototyped and eventually evolved into the rewrite that Spline Mesher Pro became.

Spline Mesher Pro does everything Standard does, but it should be considered a completely separate asset.

Comparison

	Spline Extrude	Standard	Pro
Output	Combined meshes	Combined meshes	Segmented meshes1
Performance	Main thread only	Main thread only	Multi-threaded Jobs (x27 faster)
Multi materials	Single Material Only	Limited	Full Support
Shapes	Basic	Any	Any + Procedural + Fill
Prefab caps	❌	✅	✅
Auto-stretching	❌	✅	✅
Lightmap support	❌	✅	✅
Roll control	❌	✅	✅
Scale editor	❌	✅	✅
Vertex color editor	❌	✅	✅
Collider conforming	❌	✅	✅
Events & callbacks	❌	✅	✅
Procedural input meshes	❌	❌	✅
Fill/contour mesh	❌	❌	✅
Rigidbody/Convex colliders	❌	❌	✅
Output splitting	❌	❌	✅
Collider/trigger events	❌	❌	✅
MeshLOD support	❌	❌	✅
Procedural vertex colors	❌	❌	✅

Upgrading

Users who own a license to Spline Mesher Standard are offered a discounted upgrade to Pro.

Up-to-date discounts are available here.

Spline Mesher Pro contains a migration utility, that will allow you to convert Standard components into their Pro equivalent.

Detailed changes

• New demo content
  * Wind tube
  * Aurora borealis
  * Street curbs
  * Stylized lake
• Rope bridge
• River
• Cliff faces
• Inspector enhancements:
  * Buttons to toggle Wireframe and UV visualization
  * Ability to drag & drop a material
  * Triangle/vertex count display + memory size
• Collider generation:
  * Option to use an adjustable Cube/Cylinder/Plane mesh.
  * Colliders can now have RigidBodies auto-attached and a separate layer
  * Collision/Trigger events across the spline (C# or through the inspector)
• Vertex colors:
  * A base color can now be specified (overwriting the input mesh’s colors)
  * A gradient can now be auto-generated along the start/end of the mesh (configurable length and falloff)
• Input mesh can now be a configurable Cube, Tube or Plane mesh.
• Output mesh can now be split into segments of a maximum length.
• Support for MeshLOD in Unity 6.2. LODs can now be auto-generated when the scene saves (or manually through script)
• Conforming start/end falloff controls.
• Caps can now be aligned on specific axis.

Changed:

• Script namespace has changed to “sc.splinemesher.runtime”
• Spline Mesher component is now called “Spline Curve Mesher”
• A separate mesh/collider objects are now created per spline.
• Render- and Collision mesh are now created in parallel for far better performance.
• Lightmap UV generation behaviour can now be configured in a “Project Settings” section, so can be commited to source control

Removed:

• Conforming, “Terrains Only” option. No longer possible with Job system raycasting.

1. Great for long spline meshes, greatly improves the culling, rendering & physics performance ↩︎