Just an update (for 1.58) of the mod “Tesselation Fix” : https://www.nexusmods.com/nomanssky/mods/741 originally created by “Tias”
and modifed by KNIGHTMARE077 (for 1.57)

(Description written by Tias) :

“This will fix the muddy textures and flickering Terrain when you have Tesselation enabled.

You need to enable Tesselation here.
No Man’s SkyBinariesSETTINGS

TKGRAPHICSSETTINGS.MXML

Look for
<Property name=”EnableTessellation” value=”False” />
And change this to True
<Property name=”EnableTessellation” value=”True” />

Recommend changing the setting Terrain Quality to whatever you like in the menus after you have activated Tesselation.
You may need to have full screen mode for this option to appear.

I have effectively doubled all the values in Terrain Quality settings.
Medium is now High
High is now Ultra
Ultra is now Uber!!

This will of course affect your performance, find the proper settings accordingly.

Will be Incompatible with any mod that use GCGRAPHICSGLOBALS.GLOBAL

Enjoy!!”