This is a paid asset, but now you can download Sci-Fi Stealth Effect Free.
Detail this asset from Unity Store: Original Link
Sci-Fi Stealth Effect v1.2 (Latest version)
Sci-Fi Stealth Optical Camouflage
The definitive stealth shader effect for your sci-fi games.
NEW UPDATE 1.2
-Added UV/Triplanar Mapping options.
-More PBR Parameters.
-Performance improvements.
-Minor tweaks and fixes.
Features:
✭Fully customizable parameters.
✭24 Included high quality patterns.
✭Astonishing Sci-Fi looks.
✭Performance friendly
✭Works on Mobile & PC
✭Clear and fast custom material editor.
✭Endless configuration options.
✭Editable Shader Forge nodes.
✭Periodic Updates & added features.
Sample Assets not included. You can find them for free on the Asset Store:
Purple Space Nebula Skybox – TL Multimedia
SF Imperial Corvette F3 – CGPitbull.