{
  "format_version": "1.10.0",
  "particle_effect": {
    "description": {
      "identifier": "vatonage_mutants:mutant_zombie_roar_particle",
      "basic_render_parameters": {
        "material": "particles_alpha",
        "texture": "textures/particle/shriek"
      }
    },
    "components": {
      "minecraft:emitter_rate_steady": {
        "spawn_rate": 5,
        "max_particles": 5
      },
      "minecraft:emitter_lifetime_once": {
        "active_time": 1
      },
      "minecraft:emitter_shape_point": {
        "direction": ["v.dirx", 0, "v.dirz"]
      },
      "minecraft:particle_initialization": {
        "per_render_expression": "v.size=0.5*math.abs(math.sin(v.particle_age*100));"
      },
      "minecraft:particle_lifetime_expression": {
        "max_lifetime": 3.6
      },
      "minecraft:particle_initial_speed": 1,
      "minecraft:particle_motion_dynamic": {},
      "minecraft:particle_appearance_billboard": {
        "size": ["v.size", "v.size"],
        "facing_camera_mode": "rotate_xyz",
        "uv": {
          "texture_width": 13,
          "texture_height": 13,
          "uv": [0, 0],
          "uv_size": [13, 13]
        }
      }
    }
  }
}
