This is a paid asset, but now you can download ProFlares – Ultimate Lens Flares for Unity3D for FREE, but please remember this package is provided only for learning purposes or to be able to test before buying the product, NOT FOR COMMERCIAL PURPOSES.
Detail this asset from Unity Store: Original Link
ProFlares – Ultimate Lens Flares for Unity3D v1.50
ProFlares is the ultimate Lens Flare plugin for Unity. A complete set of editor tools for creating and animating realistic lens flares. ProFlares gives you the ability to create a vast array of different styles of lens flares with ease.
See ProFlares In Action!
Island Demo – Preset Preview – Video Trailer
> YouTube Tutorials
Full Unity 2017,2018,2019 support
High Performance – ProFlares is powered by a custom high performance automatic batching system that allows you to create multiple complex flares with only one draw call. ProFlares does this with no runtime allocations, includes robust flare culling system to reduce overhead with scenes with lots of flares.
Artist Friendly – Designed from the ground up to be used by artists, no code or scripting required. Just use the intuitive interface to create a flare from scratch or modify one of the many example flares included with ProFlares.
· Full iOS & Android Support
· Zero Run time allocations
· 20+ Professional Examples Flares
· 120+ High Res Lens Element Library
· Split Screen Support
· Texture Packer Atlas Import Support
· Full source code included