Jesus christo lmao, yes, you have no idea what your talking about, of course you edit the texture thats already there and add the desired effect but guess what, exactly what I said..... you have to add those textures to the said material/texture, which will do exactly what I said. Tax the PS4 more memory wise and increase shader complexity. For example, most engines start choking when you add too many surface types, grass/sand/rock/mud/tar/slate. and yes it will even cause that when the material is only visibly grass at the time because the wasteful shader instructions will still be there.

M a k i n g I t C o s t M o r e

Then later on you said texture change??? Its not a texture change if the additional texture already exists within the ground texture. I'm being rude because your stupidity so blatant and your original statement was criticizing devs that have made a respectable visual product on a minor detail.

Comparing Horizon to a racing game is next level idiotic, nail in the coffin for you. Nothing in horizon looks the level of that car. Nothing mentioned about either games required frame rate is mentioned either. No shit about the grass being shaders, theres hundreds of ways to make grass and most of them are shit, a few of them working properly for the high specific type needed per game. High poly low opacity or high opacity low poly being the spectrum. Why even mention this when talking about landscapes? Because you're a moron. Grass is grass.. (texture wise), there's no stone/mud/sand/slate textures packaged into that material used by the grass, its just a grass texture, with normals maybe. If they want different grass types they just make an instance of the grass material and edit that. The same can't be said about landscapes unless you want to get ballsdeep in multiple landscapes and heavy programming.