Unity Development — Raycasting. This may come as a shock to some of… | by Christopher Graf | Medium
Applied Sciences | Free Full-Text | AR Pointer: Advanced Ray-Casting Interface Using Laser Pointer Metaphor for Object Manipulation in 3D Augmented Reality Environment
Unity Laser Pointer/Sight? : r/Unity3D
How to render a Laser Pointer always after the canvas is Rendered? - Unity Answers