bedrock-samples/resource_pack/particles/sculk_sensor_redstone_particle.json

{
  "format_version": "1.10.0",
  "particle_effect": {
    "description": {
      "identifier": "minecraft:sculk_sensor_redstone_particle",
      "basic_render_parameters": {
        "material": "particles_alpha",
        "texture": "textures/particle/particles"
      }
    },
    "components": {
      "minecraft:emitter_rate_instant": {
        "num_particles": 1
      },        
      "minecraft:emitter_lifetime_expression": {
        "activation_expression": 1,
        "expiration_expression": 1
      },
      "minecraft:emitter_shape_point": {
      },
      "minecraft:particle_initial_speed": [ "Math.random(-0.4, 0.4)", "Math.random(-0.1, 0.1)", "Math.random(-0.4, 0.4)" ],
      "minecraft:particle_lifetime_expression": {
        "max_lifetime": "2 / math.random(1.0, 5.0)"
      },
      "minecraft:particle_motion_dynamic": {
      },
      "minecraft:particle_motion_collision": {
        "coefficient_of_restitution": 0.0,
        "collision_drag": 0.0,
        "collision_radius": 0.01
      },
      "minecraft:particle_appearance_billboard": {
        "size": [ "variable.particle_random_3 * 0.075 + 0.075", "variable.particle_random_3 * 0.075 + 0.075" ],
        "facing_camera_mode": "lookat_xyz",
        "uv": {
          "texture_width": 128,
          "texture_height": 128,
          "flipbook": {
            "base_UV": [ 56, 0 ],
            "size_UV": [ 8, 8 ],
            "step_UV": [ -8, 0 ],
            "frames_per_second": 8,
            "max_frame": 8,
            "stretch_to_lifetime": true,
            "loop": false
          }
        }
      },
      "minecraft:particle_appearance_tinting": {
        "color": {
          "gradient": {
            "0.1": [ "(variable.particle_random_1 * 0.2 + 0.8) * (variable.particle_random_2 * 0.4 + 0.6)", 0, 0 , 1],
            "0.7": [ 0, 0, "(variable.particle_random_1 * 0.2 + 0.8) * (variable.particle_random_2 * 0.4 + 0.6)", 1],
            "1.7": [ 0, 0, "(variable.particle_random_1 * 0.2 + 0.8) * (variable.particle_random_2 * 0.4 + 0.6)", 0]
          },
          "interpolant": "variable.particle_age"
        }
      },
      "minecraft:particle_appearance_lighting": {}
    }
  }
}