Looks same as vanilla

[A1998ToyotaCorolla]

For me it makes no difference when i select it in the iris shaders menu. I installed it by dragging and dropping the zip file into the shaderpacks folder. Playing on 1.19.2.

[RetriDoti]

same issue here in 1.18.2

[demisys]

Make sure to download the master zip https://github.com/ckosmic/minecraft-psx/archive/refs/heads/master.zip and not the release, as of now the 1.0.1 zip from the Releases tab is missing 393c663 and possibly a bunch of other fixes. Works OK for me on both Forge with Oculus and Fabric with Iris on 1.18.2 and 1.19.2

[rdsov]

Also, if you have the wrong/out-of-date OF version for some reason, you won't see a change as well.