How do I model Laser scanning effect? So i'm trying to build this sci-fi looking scene and trying to scan one of my model but it won't give a decent result I tried using sun lamp reducing its size and blocking it with plane having a narrow slit.
Here's the link of something similar
Here I have set a Spot light lamp to have a gradient that results in a laser line.



The Gradient Texture is sourced from the lamp's normal and the constrained via additional colour stops set to Constant.

The key was to up the strength to 10,000.