Working with mods doesn’t always give you obvious errors, and you might not understand why something isn’t working.
This page has a ton of troubleshooting tips for common grievances while creating mods.
You can scale any texture as low and as high as you want. Most default textures can be saved as half their original resolution. Since using mods causes (mostly minimal) performance drops, it’s good advice to not go beyond 2048x2048px as your maximum texture resolution.
Remember: Textures you didn’t edit do not need to be in the mod file. The game will use default textures (and resolution) for textures that are not in the mod file.
Make sure your R_ texture is set up properly. If the original texture uses Metallic at all, it’s best to keep it as BC5 and edit the color channels accordingly.
Place your car or go back into the editor camera and it should force the update.
Place your car or go back into the editor camera and export again.
Mods overwrite the mood setting. Go back to the menu and hold CTRL while picking your map. There you can change the mood and select the mod.
There are several tools and websites that you can use to transform pictures into PBR textures.
One you could use is Materialize.
Note: While these tools give decent results depending on the source image, it’s nowhere near as accurate as a properly captured/created PBR texture. Feeding these tools an image will often result in approximations rather than true PBR textures, since they can’t actually calculate depth or specular information from a simple picture. Essentially they’re just filters.
CustomRock is broken up in two materials; one for top-down projection and one for side projection. It’s a technique called Triplanar Projection Mapping.
The top projection is controlled by the CustomRock material.
The side projection is controlled by the CustomRock_pxz material.
You can also modify the color difference overlay using customrock_x2.
Essentially, if you modify the top projection CustomRock material into having a white texture, you get snowy rocks.
The free tool Channel-packing can be used to pack textures together (think Metallic/Roughness, Alpha).
You need to use the Decoration Unlocker Openplanet plugin. Simply install the plugin, hold CTRL and click the map to open the editor, and you’ll get a popup where you can pick your mod without the stadium!