This is my first GTA 5 shader, if you have any improvements please write it me. Before you can use the shader you MUST install reShade from here: https://reshade.me/
just follow the instructions and your fine.
after you download this file , just drag and drop it into your gta 5 main folder. in gta just select the shader with reShade.
For the best experience, I recommend you to use this Shader with Redux

Changelog:
1.0
Filmpass, smaa, clarity and Sepia.fx

1.1
minor adjustments to filmpass, smaa, clarity and sepia.fx

1.2
decrease the blue effect (sepia.fx) for more natural look , little adjustments to
smaa

1.5
remove smaa.fx, major adjustments to filmpass and sepia.fx
the blue effect is greatly reduced to get a more natural look
the nights are not that dark anymore