VoxelEngine/res/content/base/blocks/grass.json

{
    "texture": "grass",
    "draw-group": 1,
    "light-passing": true,
    "obstacle": false,
    "replaceable": true,
    "model": "X",
    "hitbox": [0.15, 0.0, 0.15, 0.7, 0.7, 0.7]
}