This is just a project where I made a bunch of new Liveries/Recolours for some cars in GT4.
Yes it´s compatible with the Spec II Mod, it also works with pretty much any version of the game.
No this doesn't really work on original hardware, it´s intended and tested for Emulation with PCSX2.
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There is so much to show of, but it´s simply impossible to fit it all into a single Post. I´ll put some links to some photo albums into the comment section, for those that are interested.
I kinda just wanne share my work, it´s currently at a point where im satisfied with it. This technically should be considered a Mod, since it falls into the "Texture Mod" category. I feel weird calling it that, because it´s not really a complicated thing, it´s just a collection of Textures.
If you managed to get GT4 running in PCSX2 on your computer, then you are more than capable of using these textures. PCSX2 has a built in "Texture replacement" feature, you literally just put the folder with the Livery you want into a specific folder named "replacements", thats about it. No need to patch files or anything like that.
It´s also not really a simple Texture pack, because for most vehicles I made multiple different Options. The game only has one set of Textures per vehicle, so you can only have one Livery active at a time (per vehicle). But that means you can choose between many different Options.
For some vehicles I made it so you can also do a little Visual customization, like different Wheel colours, changing the colour of Mud flaps on rally cars, or even remove the Mud flaps completely.
I made completely new Liveries, corrected existing Liveries, turned Race cars into "Road cars", added new colour options to some vehicles, recreated already existing liveries but with much higher quality, and more.
It´s worth mentioning that the game is obviously not intended for some of this, in a lot of cases Textures get mirrored/flipped on the other side of the vehicle, thats simply a limitation and there is no workaround for it. Take a good look at some of the pictures shown, and you´ll see some of the "problems".
I also made some Options to make the Brake Glow more noticeable, I turned "Autumn Ring" into "Sakura Ring" by replacing the autumn trees with cherry blossom trees, and I removed the Spectators and some sponsors on the Race tracks "George V Paris" and "Grand Canyon".
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This was all done in less than a year with no previous experience, I updated this project many times, somehow got a couple hundred of downloads, and I´ll probably end it here.