This texture pack is an overhaul of the existing Gaia Pro terrain textures. The pack comes with updated texture spawners that use the new textures where possible. You can use the spawners both when making new scenes or load them into already existing scenes as well.
Comparison Screenshots: (click to enlarge)
How to use:
The texture pack installs itself under Assets\Procedural Worlds\Content Packs\Improved Terrain Textures. You can use the texture files found in there as any other texture file in Unity. The pack comes with spawners for the Gaia Pro biomes where the new textures are preconfigured for spawning. You can use these spawners in the following ways:
When creating a new scene, open the Advanced Biome Settings (small "+" button) that displays the list of spawners, and override the existing texture spawner by dragging and dropping the improved texture spawners in.
You can then continue to create your terrain as usual.
For already existing scenes, remove the old version of the texture spawner by deleting it, then browse to the new improved texture spawner and add it to the scene with the "Add to scene button".
You might need to remove all old terrain texture prototypes from the terrain before spawning it, otherwise you still would have the old textures sitting on the terrain which might lead to issues. You can remove all terrain texture prototypes conveniently with the resource removal tool in the spawner.
If you are not 100% sure about this step, please make a backup before trying out the improved spawner.