Modify LineMaterial (Line2) to create glowing lines, but when the viewpoint is rotated, vUv.x changes, resulting in significant differences compared to when viewed directly

[stan200096]

1. In the LineMaterial version of Line2, I use vUv.x to create glowing lines, aiming to achieve high brightness at the center of the lines and gradually fading towards the edges.
2. However, unfortunately, when I observe the line from an inclined perspective, the glowing effect becomes distorted.
   
   
   
   
   
   
   
   
3. Due to business requirements, I cannot use post-processing effects. Given the current situation, how should I resolve this issue?