Advanced Spline Meshes is a solution for creating smooth and visually consistent mesh deformations along splines in Unreal Engine. It fixes the limitations of Unreal’s built-in Spline Mesh Component, delivering improved stability for complex shapes, and is ideal for tracks, tubes, rails, tunnels, and any geometry that needs to follow a curve in any direction.

Unreal’s default spline mesh system often struggles with twisting, pinching, and flipping when splines fully occupy 3D space. These artifacts are most noticeable when splines loop, twist, or move along the same axis as the spline's up vector. Advanced Spline Meshes eliminates these problems by generating a clean, stable orientation along the entire spline, built solely from control point rotations. Every point shares a consistent frame of reference, so your mesh flows smoothly from start to finish with no unwanted twists or pinching.

Unlike other plugins, Advanced Spline Meshes does not rely on hacky workarounds or spot fixes for problematic spline areas. This is a targeted fix for the underlying deformation code used by the engine. It's built on the same framework as SplineMeshComponent, and has been designed to integrate into existing systems that use Unreal's splines and spline meshes, with a familiar feel. Developers, artists, and technical designers can finally enjoy the freedom of building curved geometry of any length or complexity without fighting the engine.

Key Features:

• Parallel transport-based spline orientation drives stable, twist-free mesh deformation

• GPU mesh deformation for efficient editor and runtime performance

• Automatic collision and physics

• Custom vertex factory and shader path

• Visual debugging tools