The rocky meadow asset pack contains game ready and optimized assets that will add immense depth to your landscapes.
Using the tree system to place foliage you can make even a flat plane look lively.
All rocks have LOD's and premade collision that is very optimized but high enough in detail for FPS games. They share a single 2048 texture to minimize drawcalls. A correct heightmap is included in case you want to step it up and add tesselation.
All foliage has the soft occlusion shader to make it look lush, it too shares a single 2048 texture, the result is some very cheap assets that can be placed in the hundreds of thousands without a major hit on performance. They also wag nicely in the wind. I have included normal map and specular map for them if you want to go with a more advanced shader.