Open the terrain_materials.wdl and change this in the "mat_terr_hlsl_1" material:


Code:

Out.Tex5 = inTexCoord0.xy*40; // tiling texture red
Out.Tex6 = inTexCoord0.xy*60; // tiling texture green
Out.Tex7 = inTexCoord0.xy*20; // tiling texture blue
Out.Tex8 = inTexCoord0.xy*40; // tiling texture black