So I've come up with the idea to start a project that makes IV/EFLC have the graphical fidelity of V.
Great, let's hear it.
: Higher Poly Models
V and IV model quality are very similar. If anything, GTA5 has maybe an increase of 20% in polycount, at the most.
: 4K Textures
V doesn't use 4K textures, it doesn't use 2k either. And 1k is rarely used. Most of the textures are 512 and 256, some of the smaller pieces are 128. Double these resolutions for the PC version of any R* RAGE engine title.
: Parallax Occlusion Mapping
I'm fairly cetain V doesn't use this. It's all just regular normal mapping. We'll see this feuture, as well as PBR (Physically Based Rending) in a next gen R* title, hopefully.
: Advanced Weather Effects
Yes, cool, but we have ENB for that, i'm sure you are familar with that.
Obviously, this would take a lot of time and resources
Yes it would, IV has more than 10.000 models and 30.000 textures.
There are dozens of programs out there that could really help too.
No, there are not. Texutres need to be remade and models need to be improved by hand. No program can automate this.
I would very much appreciate some feedback.
I'm not sure if you meant the x360\ps3 version of GTA5, or the next gen version?
In case of the latter, the same things apply, just maybe we'll see 2k textures on PC. Though most of the tiling is pretty small, so 1k will do just fine.
As for Parallax Occlusion Mapping, possibly, there are similar techniques that can also be used.