diff --git a/lerobot/common/envs/abstract.py b/lerobot/common/envs/abstract.py
new file mode 100644
index 00000000..e69de29b
diff --git a/lerobot/common/envs/aloha/assets/bimanual_viperx_ee_insertion.xml b/lerobot/common/envs/aloha/assets/bimanual_viperx_ee_insertion.xml
new file mode 100644
index 00000000..8002838c
--- /dev/null
+++ b/lerobot/common/envs/aloha/assets/bimanual_viperx_ee_insertion.xml
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diff --git a/lerobot/common/envs/aloha/assets/bimanual_viperx_ee_transfer_cube.xml b/lerobot/common/envs/aloha/assets/bimanual_viperx_ee_transfer_cube.xml
new file mode 100644
index 00000000..05249ad2
--- /dev/null
+++ b/lerobot/common/envs/aloha/assets/bimanual_viperx_ee_transfer_cube.xml
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diff --git a/lerobot/common/envs/aloha/assets/bimanual_viperx_insertion.xml b/lerobot/common/envs/aloha/assets/bimanual_viperx_insertion.xml
new file mode 100644
index 00000000..511f7947
--- /dev/null
+++ b/lerobot/common/envs/aloha/assets/bimanual_viperx_insertion.xml
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diff --git a/lerobot/common/envs/aloha/assets/bimanual_viperx_transfer_cube.xml b/lerobot/common/envs/aloha/assets/bimanual_viperx_transfer_cube.xml
new file mode 100644
index 00000000..2d85a47c
--- /dev/null
+++ b/lerobot/common/envs/aloha/assets/bimanual_viperx_transfer_cube.xml
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diff --git a/lerobot/common/envs/aloha/assets/scene.xml b/lerobot/common/envs/aloha/assets/scene.xml
new file mode 100644
index 00000000..0f61b8a5
--- /dev/null
+++ b/lerobot/common/envs/aloha/assets/scene.xml
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diff --git a/lerobot/common/envs/aloha/assets/tabletop.stl b/lerobot/common/envs/aloha/assets/tabletop.stl
new file mode 100644
index 00000000..ab35cdf7
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diff --git a/lerobot/common/envs/aloha/assets/vx300s_10_custom_finger_left.stl b/lerobot/common/envs/aloha/assets/vx300s_10_custom_finger_left.stl
new file mode 100644
index 00000000..534c7af9
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diff --git a/lerobot/common/envs/aloha/assets/vx300s_10_custom_finger_right.stl b/lerobot/common/envs/aloha/assets/vx300s_10_custom_finger_right.stl
new file mode 100644
index 00000000..d6a492c2
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diff --git a/lerobot/common/envs/aloha/assets/vx300s_10_gripper_finger.stl b/lerobot/common/envs/aloha/assets/vx300s_10_gripper_finger.stl
new file mode 100644
index 00000000..d6df86be
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diff --git a/lerobot/common/envs/aloha/assets/vx300s_11_ar_tag.stl b/lerobot/common/envs/aloha/assets/vx300s_11_ar_tag.stl
new file mode 100644
index 00000000..193014b6
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diff --git a/lerobot/common/envs/aloha/assets/vx300s_1_base.stl b/lerobot/common/envs/aloha/assets/vx300s_1_base.stl
new file mode 100644
index 00000000..5a7efda2
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diff --git a/lerobot/common/envs/aloha/assets/vx300s_2_shoulder.stl b/lerobot/common/envs/aloha/assets/vx300s_2_shoulder.stl
new file mode 100644
index 00000000..dc22aa7e
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diff --git a/lerobot/common/envs/aloha/assets/vx300s_3_upper_arm.stl b/lerobot/common/envs/aloha/assets/vx300s_3_upper_arm.stl
new file mode 100644
index 00000000..111c586e
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diff --git a/lerobot/common/envs/aloha/assets/vx300s_4_upper_forearm.stl b/lerobot/common/envs/aloha/assets/vx300s_4_upper_forearm.stl
new file mode 100644
index 00000000..8170d21c
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diff --git a/lerobot/common/envs/aloha/assets/vx300s_5_lower_forearm.stl b/lerobot/common/envs/aloha/assets/vx300s_5_lower_forearm.stl
new file mode 100644
index 00000000..39581f83
Binary files /dev/null and b/lerobot/common/envs/aloha/assets/vx300s_5_lower_forearm.stl differ
diff --git a/lerobot/common/envs/aloha/assets/vx300s_6_wrist.stl b/lerobot/common/envs/aloha/assets/vx300s_6_wrist.stl
new file mode 100644
index 00000000..ab8423e9
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diff --git a/lerobot/common/envs/aloha/assets/vx300s_7_gripper.stl b/lerobot/common/envs/aloha/assets/vx300s_7_gripper.stl
new file mode 100644
index 00000000..043db9ca
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diff --git a/lerobot/common/envs/aloha/assets/vx300s_8_gripper_prop.stl b/lerobot/common/envs/aloha/assets/vx300s_8_gripper_prop.stl
new file mode 100644
index 00000000..36099b42
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diff --git a/lerobot/common/envs/aloha/assets/vx300s_9_gripper_bar.stl b/lerobot/common/envs/aloha/assets/vx300s_9_gripper_bar.stl
new file mode 100644
index 00000000..eba3caa2
Binary files /dev/null and b/lerobot/common/envs/aloha/assets/vx300s_9_gripper_bar.stl differ
diff --git a/lerobot/common/envs/aloha/assets/vx300s_dependencies.xml b/lerobot/common/envs/aloha/assets/vx300s_dependencies.xml
new file mode 100644
index 00000000..93037ab7
--- /dev/null
+++ b/lerobot/common/envs/aloha/assets/vx300s_dependencies.xml
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diff --git a/lerobot/common/envs/aloha/assets/vx300s_left.xml b/lerobot/common/envs/aloha/assets/vx300s_left.xml
new file mode 100644
index 00000000..3af6c235
--- /dev/null
+++ b/lerobot/common/envs/aloha/assets/vx300s_left.xml
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diff --git a/lerobot/common/envs/aloha/assets/vx300s_right.xml b/lerobot/common/envs/aloha/assets/vx300s_right.xml
new file mode 100644
index 00000000..495df478
--- /dev/null
+++ b/lerobot/common/envs/aloha/assets/vx300s_right.xml
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diff --git a/lerobot/common/envs/aloha/constants.py b/lerobot/common/envs/aloha/constants.py
new file mode 100644
index 00000000..927fb6d3
--- /dev/null
+++ b/lerobot/common/envs/aloha/constants.py
@@ -0,0 +1,97 @@
+from pathlib import Path
+
+### Simulation envs fixed constants
+DT = 0.02
+JOINT_NAMES = ["waist", "shoulder", "elbow", "forearm_roll", "wrist_angle", "wrist_rotate"]
+START_ARM_POSE = [
+ 0,
+ -0.96,
+ 1.16,
+ 0,
+ -0.3,
+ 0,
+ 0.02239,
+ -0.02239,
+ 0,
+ -0.96,
+ 1.16,
+ 0,
+ -0.3,
+ 0,
+ 0.02239,
+ -0.02239,
+]
+
+ASSETS_DIR = Path(__file__).parent.resolve() / "assets" # note: absolute path
+
+# Left finger position limits (qpos[7]), right_finger = -1 * left_finger
+MASTER_GRIPPER_POSITION_OPEN = 0.02417
+MASTER_GRIPPER_POSITION_CLOSE = 0.01244
+PUPPET_GRIPPER_POSITION_OPEN = 0.05800
+PUPPET_GRIPPER_POSITION_CLOSE = 0.01844
+
+# Gripper joint limits (qpos[6])
+MASTER_GRIPPER_JOINT_OPEN = 0.3083
+MASTER_GRIPPER_JOINT_CLOSE = -0.6842
+PUPPET_GRIPPER_JOINT_OPEN = 1.4910
+PUPPET_GRIPPER_JOINT_CLOSE = -0.6213
+
+############################ Helper functions ############################
+
+MASTER_GRIPPER_POSITION_NORMALIZE_FN = lambda x: (x - MASTER_GRIPPER_POSITION_CLOSE) / (
+ MASTER_GRIPPER_POSITION_OPEN - MASTER_GRIPPER_POSITION_CLOSE
+)
+PUPPET_GRIPPER_POSITION_NORMALIZE_FN = lambda x: (x - PUPPET_GRIPPER_POSITION_CLOSE) / (
+ PUPPET_GRIPPER_POSITION_OPEN - PUPPET_GRIPPER_POSITION_CLOSE
+)
+MASTER_GRIPPER_POSITION_UNNORMALIZE_FN = (
+ lambda x: x * (MASTER_GRIPPER_POSITION_OPEN - MASTER_GRIPPER_POSITION_CLOSE)
+ + MASTER_GRIPPER_POSITION_CLOSE
+)
+PUPPET_GRIPPER_POSITION_UNNORMALIZE_FN = (
+ lambda x: x * (PUPPET_GRIPPER_POSITION_OPEN - PUPPET_GRIPPER_POSITION_CLOSE)
+ + PUPPET_GRIPPER_POSITION_CLOSE
+)
+MASTER2PUPPET_POSITION_FN = lambda x: PUPPET_GRIPPER_POSITION_UNNORMALIZE_FN(
+ MASTER_GRIPPER_POSITION_NORMALIZE_FN(x)
+)
+
+MASTER_GRIPPER_JOINT_NORMALIZE_FN = lambda x: (x - MASTER_GRIPPER_JOINT_CLOSE) / (
+ MASTER_GRIPPER_JOINT_OPEN - MASTER_GRIPPER_JOINT_CLOSE
+)
+PUPPET_GRIPPER_JOINT_NORMALIZE_FN = lambda x: (x - PUPPET_GRIPPER_JOINT_CLOSE) / (
+ PUPPET_GRIPPER_JOINT_OPEN - PUPPET_GRIPPER_JOINT_CLOSE
+)
+MASTER_GRIPPER_JOINT_UNNORMALIZE_FN = (
+ lambda x: x * (MASTER_GRIPPER_JOINT_OPEN - MASTER_GRIPPER_JOINT_CLOSE) + MASTER_GRIPPER_JOINT_CLOSE
+)
+PUPPET_GRIPPER_JOINT_UNNORMALIZE_FN = (
+ lambda x: x * (PUPPET_GRIPPER_JOINT_OPEN - PUPPET_GRIPPER_JOINT_CLOSE) + PUPPET_GRIPPER_JOINT_CLOSE
+)
+MASTER2PUPPET_JOINT_FN = lambda x: PUPPET_GRIPPER_JOINT_UNNORMALIZE_FN(MASTER_GRIPPER_JOINT_NORMALIZE_FN(x))
+
+MASTER_GRIPPER_VELOCITY_NORMALIZE_FN = lambda x: x / (
+ MASTER_GRIPPER_POSITION_OPEN - MASTER_GRIPPER_POSITION_CLOSE
+)
+PUPPET_GRIPPER_VELOCITY_NORMALIZE_FN = lambda x: x / (
+ PUPPET_GRIPPER_POSITION_OPEN - PUPPET_GRIPPER_POSITION_CLOSE
+)
+
+MASTER_POS2JOINT = (
+ lambda x: MASTER_GRIPPER_POSITION_NORMALIZE_FN(x)
+ * (MASTER_GRIPPER_JOINT_OPEN - MASTER_GRIPPER_JOINT_CLOSE)
+ + MASTER_GRIPPER_JOINT_CLOSE
+)
+MASTER_JOINT2POS = lambda x: MASTER_GRIPPER_POSITION_UNNORMALIZE_FN(
+ (x - MASTER_GRIPPER_JOINT_CLOSE) / (MASTER_GRIPPER_JOINT_OPEN - MASTER_GRIPPER_JOINT_CLOSE)
+)
+PUPPET_POS2JOINT = (
+ lambda x: PUPPET_GRIPPER_POSITION_NORMALIZE_FN(x)
+ * (PUPPET_GRIPPER_JOINT_OPEN - PUPPET_GRIPPER_JOINT_CLOSE)
+ + PUPPET_GRIPPER_JOINT_CLOSE
+)
+PUPPET_JOINT2POS = lambda x: PUPPET_GRIPPER_POSITION_UNNORMALIZE_FN(
+ (x - PUPPET_GRIPPER_JOINT_CLOSE) / (PUPPET_GRIPPER_JOINT_OPEN - PUPPET_GRIPPER_JOINT_CLOSE)
+)
+
+MASTER_GRIPPER_JOINT_MID = (MASTER_GRIPPER_JOINT_OPEN + MASTER_GRIPPER_JOINT_CLOSE) / 2
diff --git a/lerobot/common/envs/aloha/env.py b/lerobot/common/envs/aloha/env.py
new file mode 100644
index 00000000..70edf389
--- /dev/null
+++ b/lerobot/common/envs/aloha/env.py
@@ -0,0 +1,535 @@
+import collections
+import importlib
+from collections import deque
+from typing import Optional
+
+import numpy as np
+import torch
+from dm_control import mujoco
+from dm_control.rl import control
+from dm_control.suite import base
+from tensordict import TensorDict
+from torchrl.data.tensor_specs import (
+ BoundedTensorSpec,
+ CompositeSpec,
+ DiscreteTensorSpec,
+ UnboundedContinuousTensorSpec,
+)
+from torchrl.envs import EnvBase
+from torchrl.envs.libs.gym import _gym_to_torchrl_spec_transform
+
+from lerobot.common.utils import set_seed
+
+from .constants import (
+ ASSETS_DIR,
+ DT,
+ PUPPET_GRIPPER_POSITION_CLOSE,
+ PUPPET_GRIPPER_POSITION_NORMALIZE_FN,
+ PUPPET_GRIPPER_POSITION_UNNORMALIZE_FN,
+ PUPPET_GRIPPER_VELOCITY_NORMALIZE_FN,
+ START_ARM_POSE,
+)
+from .utils import sample_box_pose, sample_insertion_pose
+
+_has_gym = importlib.util.find_spec("gym") is not None
+
+
+def make_ee_sim_env(task_name):
+ """
+ Environment for simulated robot bi-manual manipulation, with end-effector control.
+ Action space: [left_arm_pose (7), # position and quaternion for end effector
+ left_gripper_positions (1), # normalized gripper position (0: close, 1: open)
+ right_arm_pose (7), # position and quaternion for end effector
+ right_gripper_positions (1),] # normalized gripper position (0: close, 1: open)
+
+ Observation space: {"qpos": Concat[ left_arm_qpos (6), # absolute joint position
+ left_gripper_position (1), # normalized gripper position (0: close, 1: open)
+ right_arm_qpos (6), # absolute joint position
+ right_gripper_qpos (1)] # normalized gripper position (0: close, 1: open)
+ "qvel": Concat[ left_arm_qvel (6), # absolute joint velocity (rad)
+ left_gripper_velocity (1), # normalized gripper velocity (pos: opening, neg: closing)
+ right_arm_qvel (6), # absolute joint velocity (rad)
+ right_gripper_qvel (1)] # normalized gripper velocity (pos: opening, neg: closing)
+ "images": {"main": (480x640x3)} # h, w, c, dtype='uint8'
+ """
+ if "sim_transfer_cube" in task_name:
+ xml_path = ASSETS_DIR / "bimanual_viperx_ee_transfer_cube.xml"
+ physics = mujoco.Physics.from_xml_path(xml_path)
+ task = TransferCubeEETask(random=False)
+ env = control.Environment(
+ physics, task, time_limit=20, control_timestep=DT, n_sub_steps=None, flat_observation=False
+ )
+ elif "sim_insertion" in task_name:
+ xml_path = ASSETS_DIR / "bimanual_viperx_ee_insertion.xml"
+ physics = mujoco.Physics.from_xml_path(xml_path)
+ task = InsertionEETask(random=False)
+ env = control.Environment(
+ physics, task, time_limit=20, control_timestep=DT, n_sub_steps=None, flat_observation=False
+ )
+ else:
+ raise NotImplementedError
+ return env
+
+
+class BimanualViperXEETask(base.Task):
+ def __init__(self, random=None):
+ super().__init__(random=random)
+
+ def before_step(self, action, physics):
+ a_len = len(action) // 2
+ action_left = action[:a_len]
+ action_right = action[a_len:]
+
+ # set mocap position and quat
+ # left
+ np.copyto(physics.data.mocap_pos[0], action_left[:3])
+ np.copyto(physics.data.mocap_quat[0], action_left[3:7])
+ # right
+ np.copyto(physics.data.mocap_pos[1], action_right[:3])
+ np.copyto(physics.data.mocap_quat[1], action_right[3:7])
+
+ # set gripper
+ g_left_ctrl = PUPPET_GRIPPER_POSITION_UNNORMALIZE_FN(action_left[7])
+ g_right_ctrl = PUPPET_GRIPPER_POSITION_UNNORMALIZE_FN(action_right[7])
+ np.copyto(physics.data.ctrl, np.array([g_left_ctrl, -g_left_ctrl, g_right_ctrl, -g_right_ctrl]))
+
+ def initialize_robots(self, physics):
+ # reset joint position
+ physics.named.data.qpos[:16] = START_ARM_POSE
+
+ # reset mocap to align with end effector
+ # to obtain these numbers:
+ # (1) make an ee_sim env and reset to the same start_pose
+ # (2) get env._physics.named.data.xpos['vx300s_left/gripper_link']
+ # get env._physics.named.data.xquat['vx300s_left/gripper_link']
+ # repeat the same for right side
+ np.copyto(physics.data.mocap_pos[0], [-0.31718881, 0.5, 0.29525084])
+ np.copyto(physics.data.mocap_quat[0], [1, 0, 0, 0])
+ # right
+ np.copyto(physics.data.mocap_pos[1], np.array([0.31718881, 0.49999888, 0.29525084]))
+ np.copyto(physics.data.mocap_quat[1], [1, 0, 0, 0])
+
+ # reset gripper control
+ close_gripper_control = np.array(
+ [
+ PUPPET_GRIPPER_POSITION_CLOSE,
+ -PUPPET_GRIPPER_POSITION_CLOSE,
+ PUPPET_GRIPPER_POSITION_CLOSE,
+ -PUPPET_GRIPPER_POSITION_CLOSE,
+ ]
+ )
+ np.copyto(physics.data.ctrl, close_gripper_control)
+
+ def initialize_episode(self, physics):
+ """Sets the state of the environment at the start of each episode."""
+ super().initialize_episode(physics)
+
+ @staticmethod
+ def get_qpos(physics):
+ qpos_raw = physics.data.qpos.copy()
+ left_qpos_raw = qpos_raw[:8]
+ right_qpos_raw = qpos_raw[8:16]
+ left_arm_qpos = left_qpos_raw[:6]
+ right_arm_qpos = right_qpos_raw[:6]
+ left_gripper_qpos = [PUPPET_GRIPPER_POSITION_NORMALIZE_FN(left_qpos_raw[6])]
+ right_gripper_qpos = [PUPPET_GRIPPER_POSITION_NORMALIZE_FN(right_qpos_raw[6])]
+ return np.concatenate([left_arm_qpos, left_gripper_qpos, right_arm_qpos, right_gripper_qpos])
+
+ @staticmethod
+ def get_qvel(physics):
+ qvel_raw = physics.data.qvel.copy()
+ left_qvel_raw = qvel_raw[:8]
+ right_qvel_raw = qvel_raw[8:16]
+ left_arm_qvel = left_qvel_raw[:6]
+ right_arm_qvel = right_qvel_raw[:6]
+ left_gripper_qvel = [PUPPET_GRIPPER_VELOCITY_NORMALIZE_FN(left_qvel_raw[6])]
+ right_gripper_qvel = [PUPPET_GRIPPER_VELOCITY_NORMALIZE_FN(right_qvel_raw[6])]
+ return np.concatenate([left_arm_qvel, left_gripper_qvel, right_arm_qvel, right_gripper_qvel])
+
+ @staticmethod
+ def get_env_state(physics):
+ raise NotImplementedError
+
+ def get_observation(self, physics):
+ # note: it is important to do .copy()
+ obs = collections.OrderedDict()
+ obs["qpos"] = self.get_qpos(physics)
+ obs["qvel"] = self.get_qvel(physics)
+ obs["env_state"] = self.get_env_state(physics)
+ obs["images"] = dict()
+ obs["images"]["top"] = physics.render(height=480, width=640, camera_id="top")
+ obs["images"]["angle"] = physics.render(height=480, width=640, camera_id="angle")
+ obs["images"]["vis"] = physics.render(height=480, width=640, camera_id="front_close")
+ # used in scripted policy to obtain starting pose
+ obs["mocap_pose_left"] = np.concatenate(
+ [physics.data.mocap_pos[0], physics.data.mocap_quat[0]]
+ ).copy()
+ obs["mocap_pose_right"] = np.concatenate(
+ [physics.data.mocap_pos[1], physics.data.mocap_quat[1]]
+ ).copy()
+
+ # used when replaying joint trajectory
+ obs["gripper_ctrl"] = physics.data.ctrl.copy()
+ return obs
+
+ def get_reward(self, physics):
+ raise NotImplementedError
+
+
+class TransferCubeEETask(BimanualViperXEETask):
+ def __init__(self, random=None):
+ super().__init__(random=random)
+ self.max_reward = 4
+
+ def initialize_episode(self, physics):
+ """Sets the state of the environment at the start of each episode."""
+ self.initialize_robots(physics)
+ # randomize box position
+ cube_pose = sample_box_pose()
+ box_start_idx = physics.model.name2id("red_box_joint", "joint")
+ np.copyto(physics.data.qpos[box_start_idx : box_start_idx + 7], cube_pose)
+ # print(f"randomized cube position to {cube_position}")
+
+ super().initialize_episode(physics)
+
+ @staticmethod
+ def get_env_state(physics):
+ env_state = physics.data.qpos.copy()[16:]
+ return env_state
+
+ def get_reward(self, physics):
+ # return whether left gripper is holding the box
+ all_contact_pairs = []
+ for i_contact in range(physics.data.ncon):
+ id_geom_1 = physics.data.contact[i_contact].geom1
+ id_geom_2 = physics.data.contact[i_contact].geom2
+ name_geom_1 = physics.model.id2name(id_geom_1, "geom")
+ name_geom_2 = physics.model.id2name(id_geom_2, "geom")
+ contact_pair = (name_geom_1, name_geom_2)
+ all_contact_pairs.append(contact_pair)
+
+ touch_left_gripper = ("red_box", "vx300s_left/10_left_gripper_finger") in all_contact_pairs
+ touch_right_gripper = ("red_box", "vx300s_right/10_right_gripper_finger") in all_contact_pairs
+ touch_table = ("red_box", "table") in all_contact_pairs
+
+ reward = 0
+ if touch_right_gripper:
+ reward = 1
+ if touch_right_gripper and not touch_table: # lifted
+ reward = 2
+ if touch_left_gripper: # attempted transfer
+ reward = 3
+ if touch_left_gripper and not touch_table: # successful transfer
+ reward = 4
+ return reward
+
+
+class InsertionEETask(BimanualViperXEETask):
+ def __init__(self, random=None):
+ super().__init__(random=random)
+ self.max_reward = 4
+
+ def initialize_episode(self, physics):
+ """Sets the state of the environment at the start of each episode."""
+ self.initialize_robots(physics)
+ # randomize peg and socket position
+ peg_pose, socket_pose = sample_insertion_pose()
+ id2index = lambda j_id: 16 + (j_id - 16) * 7 # first 16 is robot qpos, 7 is pose dim # hacky
+
+ peg_start_id = physics.model.name2id("red_peg_joint", "joint")
+ peg_start_idx = id2index(peg_start_id)
+ np.copyto(physics.data.qpos[peg_start_idx : peg_start_idx + 7], peg_pose)
+ # print(f"randomized cube position to {cube_position}")
+
+ socket_start_id = physics.model.name2id("blue_socket_joint", "joint")
+ socket_start_idx = id2index(socket_start_id)
+ np.copyto(physics.data.qpos[socket_start_idx : socket_start_idx + 7], socket_pose)
+ # print(f"randomized cube position to {cube_position}")
+
+ super().initialize_episode(physics)
+
+ @staticmethod
+ def get_env_state(physics):
+ env_state = physics.data.qpos.copy()[16:]
+ return env_state
+
+ def get_reward(self, physics):
+ # return whether peg touches the pin
+ all_contact_pairs = []
+ for i_contact in range(physics.data.ncon):
+ id_geom_1 = physics.data.contact[i_contact].geom1
+ id_geom_2 = physics.data.contact[i_contact].geom2
+ name_geom_1 = physics.model.id2name(id_geom_1, "geom")
+ name_geom_2 = physics.model.id2name(id_geom_2, "geom")
+ contact_pair = (name_geom_1, name_geom_2)
+ all_contact_pairs.append(contact_pair)
+
+ touch_right_gripper = ("red_peg", "vx300s_right/10_right_gripper_finger") in all_contact_pairs
+ touch_left_gripper = (
+ ("socket-1", "vx300s_left/10_left_gripper_finger") in all_contact_pairs
+ or ("socket-2", "vx300s_left/10_left_gripper_finger") in all_contact_pairs
+ or ("socket-3", "vx300s_left/10_left_gripper_finger") in all_contact_pairs
+ or ("socket-4", "vx300s_left/10_left_gripper_finger") in all_contact_pairs
+ )
+
+ peg_touch_table = ("red_peg", "table") in all_contact_pairs
+ socket_touch_table = (
+ ("socket-1", "table") in all_contact_pairs
+ or ("socket-2", "table") in all_contact_pairs
+ or ("socket-3", "table") in all_contact_pairs
+ or ("socket-4", "table") in all_contact_pairs
+ )
+ peg_touch_socket = (
+ ("red_peg", "socket-1") in all_contact_pairs
+ or ("red_peg", "socket-2") in all_contact_pairs
+ or ("red_peg", "socket-3") in all_contact_pairs
+ or ("red_peg", "socket-4") in all_contact_pairs
+ )
+ pin_touched = ("red_peg", "pin") in all_contact_pairs
+
+ reward = 0
+ if touch_left_gripper and touch_right_gripper: # touch both
+ reward = 1
+ if (
+ touch_left_gripper and touch_right_gripper and (not peg_touch_table) and (not socket_touch_table)
+ ): # grasp both
+ reward = 2
+ if peg_touch_socket and (not peg_touch_table) and (not socket_touch_table): # peg and socket touching
+ reward = 3
+ if pin_touched: # successful insertion
+ reward = 4
+ return reward
+
+
+class AlohaEnv(EnvBase):
+ def __init__(
+ self,
+ task,
+ frame_skip: int = 1,
+ from_pixels: bool = False,
+ pixels_only: bool = False,
+ image_size=None,
+ seed=1337,
+ device="cpu",
+ num_prev_obs=1,
+ num_prev_action=0,
+ ):
+ super().__init__(device=device, batch_size=[])
+ self.frame_skip = frame_skip
+ self.from_pixels = from_pixels
+ self.pixels_only = pixels_only
+ self.image_size = image_size
+ self.num_prev_obs = num_prev_obs
+ self.num_prev_action = num_prev_action
+
+ if pixels_only:
+ assert from_pixels
+ if from_pixels:
+ assert image_size
+
+ if not _has_gym:
+ raise ImportError("Cannot import gym.")
+
+ if not from_pixels:
+ raise NotImplementedError()
+
+ if "sim_transfer_cube" in task:
+ xml_path = ASSETS_DIR / "bimanual_viperx_ee_transfer_cube.xml"
+ physics = mujoco.Physics.from_xml_path(xml_path)
+ task = TransferCubeEETask(random=False)
+ env = control.Environment(
+ physics, task, time_limit=20, control_timestep=DT, n_sub_steps=None, flat_observation=False
+ )
+ elif "sim_insertion" in task:
+ xml_path = ASSETS_DIR / "bimanual_viperx_ee_insertion.xml"
+ physics = mujoco.Physics.from_xml_path(xml_path)
+ task = InsertionEETask(random=False)
+ env = control.Environment(
+ physics, task, time_limit=20, control_timestep=DT, n_sub_steps=None, flat_observation=False
+ )
+ else:
+ raise NotImplementedError
+
+ self._env = env
+
+ self._make_spec()
+ self._current_seed = self.set_seed(seed)
+
+ if self.num_prev_obs > 0:
+ self._prev_obs_image_queue = deque(maxlen=self.num_prev_obs)
+ self._prev_obs_state_queue = deque(maxlen=self.num_prev_obs)
+ if self.num_prev_action > 0:
+ raise NotImplementedError()
+ # self._prev_action_queue = deque(maxlen=self.num_prev_action)
+
+ def render(self, mode="rgb_array", width=384, height=384):
+ if width != height:
+ raise NotImplementedError()
+ tmp = self._env.render_size
+ self._env.render_size = width
+ out = self._env.render(mode)
+ self._env.render_size = tmp
+ return out
+
+ def _format_raw_obs(self, raw_obs):
+ if self.from_pixels:
+ image = torch.from_numpy(raw_obs["image"])
+ obs = {"image": image}
+
+ if not self.pixels_only:
+ obs["state"] = torch.from_numpy(raw_obs["agent_pos"]).type(torch.float32)
+ else:
+ # TODO:
+ obs = {"state": torch.from_numpy(raw_obs["observation"]).type(torch.float32)}
+
+ return obs
+
+ def _reset(self, tensordict: Optional[TensorDict] = None):
+ td = tensordict
+ if td is None or td.is_empty():
+ # we need to handle seed iteration, since self._env.reset() rely an internal _seed.
+ self._current_seed += 1
+ self.set_seed(self._current_seed)
+ raw_obs = self._env.reset()
+ assert self._current_seed == self._env._seed
+
+ obs = self._format_raw_obs(raw_obs)
+
+ if self.num_prev_obs > 0:
+ stacked_obs = {}
+ if "image" in obs:
+ self._prev_obs_image_queue = deque(
+ [obs["image"]] * (self.num_prev_obs + 1), maxlen=(self.num_prev_obs + 1)
+ )
+ stacked_obs["image"] = torch.stack(list(self._prev_obs_image_queue))
+ if "state" in obs:
+ self._prev_obs_state_queue = deque(
+ [obs["state"]] * (self.num_prev_obs + 1), maxlen=(self.num_prev_obs + 1)
+ )
+ stacked_obs["state"] = torch.stack(list(self._prev_obs_state_queue))
+ obs = stacked_obs
+
+ td = TensorDict(
+ {
+ "observation": TensorDict(obs, batch_size=[]),
+ "done": torch.tensor([False], dtype=torch.bool),
+ },
+ batch_size=[],
+ )
+ else:
+ raise NotImplementedError()
+ return td
+
+ def _step(self, tensordict: TensorDict):
+ td = tensordict
+ action = td["action"].numpy()
+ # step expects shape=(4,) so we pad if necessary
+ # TODO(rcadene): add info["is_success"] and info["success"] ?
+ sum_reward = 0
+
+ if action.ndim == 1:
+ action = einops.repeat(action, "c -> t c", t=self.frame_skip)
+ else:
+ if self.frame_skip > 1:
+ raise NotImplementedError()
+
+ num_action_steps = action.shape[0]
+ for i in range(num_action_steps):
+ raw_obs, reward, done, info = self._env.step(action[i])
+ sum_reward += reward
+
+ obs = self._format_raw_obs(raw_obs)
+
+ if self.num_prev_obs > 0:
+ stacked_obs = {}
+ if "image" in obs:
+ self._prev_obs_image_queue.append(obs["image"])
+ stacked_obs["image"] = torch.stack(list(self._prev_obs_image_queue))
+ if "state" in obs:
+ self._prev_obs_state_queue.append(obs["state"])
+ stacked_obs["state"] = torch.stack(list(self._prev_obs_state_queue))
+ obs = stacked_obs
+
+ td = TensorDict(
+ {
+ "observation": TensorDict(obs, batch_size=[]),
+ "reward": torch.tensor([sum_reward], dtype=torch.float32),
+ # succes and done are true when coverage > self.success_threshold in env
+ "done": torch.tensor([done], dtype=torch.bool),
+ "success": torch.tensor([done], dtype=torch.bool),
+ },
+ batch_size=[],
+ )
+ return td
+
+ def _make_spec(self):
+ obs = {}
+ if self.from_pixels:
+ image_shape = (3, self.image_size, self.image_size)
+ if self.num_prev_obs > 0:
+ image_shape = (self.num_prev_obs + 1, *image_shape)
+
+ obs["image"] = BoundedTensorSpec(
+ low=0,
+ high=1,
+ shape=image_shape,
+ dtype=torch.float32,
+ device=self.device,
+ )
+ if not self.pixels_only:
+ state_shape = self._env.observation_space["agent_pos"].shape
+ if self.num_prev_obs > 0:
+ state_shape = (self.num_prev_obs + 1, *state_shape)
+
+ obs["state"] = BoundedTensorSpec(
+ low=0,
+ high=512,
+ shape=state_shape,
+ dtype=torch.float32,
+ device=self.device,
+ )
+ else:
+ # TODO(rcadene): add observation_space achieved_goal and desired_goal?
+ state_shape = self._env.observation_space["observation"].shape
+ if self.num_prev_obs > 0:
+ state_shape = (self.num_prev_obs + 1, *state_shape)
+
+ obs["state"] = UnboundedContinuousTensorSpec(
+ # TODO:
+ shape=state_shape,
+ dtype=torch.float32,
+ device=self.device,
+ )
+ self.observation_spec = CompositeSpec({"observation": obs})
+
+ self.action_spec = _gym_to_torchrl_spec_transform(
+ self._env.action_space,
+ device=self.device,
+ )
+
+ self.reward_spec = UnboundedContinuousTensorSpec(
+ shape=(1,),
+ dtype=torch.float32,
+ device=self.device,
+ )
+
+ self.done_spec = CompositeSpec(
+ {
+ "done": DiscreteTensorSpec(
+ 2,
+ shape=(1,),
+ dtype=torch.bool,
+ device=self.device,
+ ),
+ "success": DiscreteTensorSpec(
+ 2,
+ shape=(1,),
+ dtype=torch.bool,
+ device=self.device,
+ ),
+ }
+ )
+
+ def _set_seed(self, seed: Optional[int]):
+ set_seed(seed)
+ self._env.seed(seed)
diff --git a/lerobot/common/envs/aloha/utils.py b/lerobot/common/envs/aloha/utils.py
new file mode 100644
index 00000000..5ac8b955
--- /dev/null
+++ b/lerobot/common/envs/aloha/utils.py
@@ -0,0 +1,39 @@
+import numpy as np
+
+
+def sample_box_pose():
+ x_range = [0.0, 0.2]
+ y_range = [0.4, 0.6]
+ z_range = [0.05, 0.05]
+
+ ranges = np.vstack([x_range, y_range, z_range])
+ cube_position = np.random.uniform(ranges[:, 0], ranges[:, 1])
+
+ cube_quat = np.array([1, 0, 0, 0])
+ return np.concatenate([cube_position, cube_quat])
+
+
+def sample_insertion_pose():
+ # Peg
+ x_range = [0.1, 0.2]
+ y_range = [0.4, 0.6]
+ z_range = [0.05, 0.05]
+
+ ranges = np.vstack([x_range, y_range, z_range])
+ peg_position = np.random.uniform(ranges[:, 0], ranges[:, 1])
+
+ peg_quat = np.array([1, 0, 0, 0])
+ peg_pose = np.concatenate([peg_position, peg_quat])
+
+ # Socket
+ x_range = [-0.2, -0.1]
+ y_range = [0.4, 0.6]
+ z_range = [0.05, 0.05]
+
+ ranges = np.vstack([x_range, y_range, z_range])
+ socket_position = np.random.uniform(ranges[:, 0], ranges[:, 1])
+
+ socket_quat = np.array([1, 0, 0, 0])
+ socket_pose = np.concatenate([socket_position, socket_quat])
+
+ return peg_pose, socket_pose
diff --git a/lerobot/common/envs/factory.py b/lerobot/common/envs/factory.py
index 984b866a..ecb3e835 100644
--- a/lerobot/common/envs/factory.py
+++ b/lerobot/common/envs/factory.py
@@ -23,6 +23,10 @@ def make_env(cfg, transform=None):
# assert kwargs["seed"] > 200, "Seed 0-200 are used for the demonstration dataset, so we don't want to seed the eval env with this range."
clsfunc = PushtEnv
+ elif cfg.env.name == "aloha":
+ from lerobot.common.envs.aloha.env import AlohaEnv
+
+ clsfunc = AlohaEnv
else:
raise ValueError(cfg.env.name)
diff --git a/poetry.lock b/poetry.lock
index 9a35071b..761d9bd5 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -503,6 +503,37 @@ files = [
{file = "distlib-0.3.8.tar.gz", hash = "sha256:1530ea13e350031b6312d8580ddb6b27a104275a31106523b8f123787f494f64"},
]
+[[package]]
+name = "dm-control"
+version = "1.0.14"
+description = "Continuous control environments and MuJoCo Python bindings."
+optional = false
+python-versions = ">=3.8"
+files = [
+ {file = "dm_control-1.0.14-py3-none-any.whl", hash = "sha256:883c63244a7ebf598700a97564ed19fffd3479ca79efd090aed881609cdb9fc6"},
+ {file = "dm_control-1.0.14.tar.gz", hash = "sha256:def1ece747b6f175c581150826b50f1a6134086dab34f8f3fd2d088ea035cf3d"},
+]
+
+[package.dependencies]
+absl-py = ">=0.7.0"
+dm-env = "*"
+dm-tree = "!=0.1.2"
+glfw = "*"
+labmaze = "*"
+lxml = "*"
+mujoco = ">=2.3.7"
+numpy = ">=1.9.0"
+protobuf = ">=3.19.4"
+pyopengl = ">=3.1.4"
+pyparsing = ">=3.0.0"
+requests = "*"
+scipy = "*"
+setuptools = "!=50.0.0"
+tqdm = "*"
+
+[package.extras]
+hdf5 = ["h5py"]
+
[[package]]
name = "dm-env"
version = "1.6"
@@ -599,43 +630,6 @@ files = [
{file = "einops-0.7.0.tar.gz", hash = "sha256:b2b04ad6081a3b227080c9bf5e3ace7160357ff03043cd66cc5b2319eb7031d1"},
]
-[[package]]
-name = "etils"
-version = "1.7.0"
-description = "Collection of common python utils"
-optional = false
-python-versions = ">=3.10"
-files = [
- {file = "etils-1.7.0-py3-none-any.whl", hash = "sha256:61af8f7c242171de15e22e5da02d527cb9e677d11f8bcafe18fcc3548eee3e60"},
- {file = "etils-1.7.0.tar.gz", hash = "sha256:97b68fd25e185683215286ef3a54e38199b6245f5fe8be6bedc1189be4256350"},
-]
-
-[package.dependencies]
-fsspec = {version = "*", optional = true, markers = "extra == \"epath\""}
-importlib_resources = {version = "*", optional = true, markers = "extra == \"epath\""}
-typing_extensions = {version = "*", optional = true, markers = "extra == \"epy\""}
-zipp = {version = "*", optional = true, markers = "extra == \"epath\""}
-
-[package.extras]
-all = ["etils[array-types]", "etils[eapp]", "etils[ecolab]", "etils[edc]", "etils[enp]", "etils[epath-gcs]", "etils[epath-s3]", "etils[epath]", "etils[epy]", "etils[etqdm]", "etils[etree-dm]", "etils[etree-jax]", "etils[etree-tf]", "etils[etree]"]
-array-types = ["etils[enp]"]
-dev = ["chex", "dataclass_array", "optree", "pyink", "pylint (>=2.6.0)", "pytest", "pytest-subtests", "pytest-xdist", "torch"]
-docs = ["etils[all,dev]", "sphinx-apitree[ext]"]
-eapp = ["absl-py", "etils[epy]", "simple_parsing"]
-ecolab = ["etils[enp]", "etils[epy]", "etils[etree]", "jupyter", "mediapy", "numpy", "packaging", "protobuf"]
-edc = ["etils[epy]"]
-enp = ["etils[epy]", "numpy"]
-epath = ["etils[epy]", "fsspec", "importlib_resources", "typing_extensions", "zipp"]
-epath-gcs = ["etils[epath]", "gcsfs"]
-epath-s3 = ["etils[epath]", "s3fs"]
-epy = ["typing_extensions"]
-etqdm = ["absl-py", "etils[epy]", "tqdm"]
-etree = ["etils[array-types]", "etils[enp]", "etils[epy]", "etils[etqdm]"]
-etree-dm = ["dm-tree", "etils[etree]"]
-etree-jax = ["etils[etree]", "jax[cpu]"]
-etree-tf = ["etils[etree]", "tensorflow"]
-lazy-imports = ["etils[ecolab]"]
-
[[package]]
name = "exceptiongroup"
version = "1.2.0"
@@ -1003,21 +997,6 @@ docs = ["furo", "jaraco.packaging (>=9.3)", "jaraco.tidelift (>=1.4)", "rst.link
perf = ["ipython"]
testing = ["flufl.flake8", "importlib-resources (>=1.3)", "packaging", "pyfakefs", "pytest (>=6)", "pytest-black (>=0.3.7)", "pytest-checkdocs (>=2.4)", "pytest-cov", "pytest-enabler (>=2.2)", "pytest-mypy (>=0.9.1)", "pytest-perf (>=0.9.2)", "pytest-ruff"]
-[[package]]
-name = "importlib-resources"
-version = "6.1.2"
-description = "Read resources from Python packages"
-optional = false
-python-versions = ">=3.8"
-files = [
- {file = "importlib_resources-6.1.2-py3-none-any.whl", hash = "sha256:9a0a862501dc38b68adebc82970140c9e4209fc99601782925178f8386339938"},
- {file = "importlib_resources-6.1.2.tar.gz", hash = "sha256:308abf8474e2dba5f867d279237cd4076482c3de7104a40b41426370e891549b"},
-]
-
-[package.extras]
-docs = ["furo", "jaraco.packaging (>=9.3)", "jaraco.tidelift (>=1.4)", "rst.linker (>=1.9)", "sphinx (<7.2.5)", "sphinx (>=3.5)", "sphinx-lint"]
-testing = ["pytest (>=6)", "pytest-checkdocs (>=2.4)", "pytest-cov", "pytest-enabler (>=2.2)", "pytest-mypy", "pytest-ruff (>=0.2.1)", "zipp (>=3.17)"]
-
[[package]]
name = "iniconfig"
version = "2.0.0"
@@ -1046,6 +1025,50 @@ MarkupSafe = ">=2.0"
[package.extras]
i18n = ["Babel (>=2.7)"]
+[[package]]
+name = "labmaze"
+version = "1.0.6"
+description = "LabMaze: DeepMind Lab's text maze generator."
+optional = false
+python-versions = "*"
+files = [
+ {file = "labmaze-1.0.6-cp310-cp310-macosx_10_12_x86_64.whl", hash = "sha256:b2ddef976dfd8d992b19cfa6c633f2eba7576d759c2082da534e3f727479a84a"},
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+[package.extras]
+cssselect = ["cssselect (>=0.7)"]
+html5 = ["html5lib"]
+htmlsoup = ["BeautifulSoup4"]
+source = ["Cython (>=3.0.7)"]
+
[[package]]
name = "markupsafe"
version = "2.1.5"
@@ -1203,42 +1319,40 @@ tests = ["pytest (>=4.6)"]
[[package]]
name = "mujoco"
-version = "3.1.2"
+version = "2.3.7"
description = "MuJoCo Physics Simulator"
optional = false
python-versions = ">=3.8"
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+ {file = "mujoco-2.3.7-cp39-cp39-win_amd64.whl", hash = "sha256:9c721a5042b99d948d5f0296a534bcce3f142c777c4d7642f503a539513f3912"},
+ {file = "mujoco-2.3.7.tar.gz", hash = "sha256:422041f1ce37c6d151fbced1048df626837e94fe3cd9f813585907046336a7d0"},
]
[package.dependencies]
absl-py = "*"
-etils = {version = "*", extras = ["epath"]}
glfw = "*"
numpy = "*"
pyopengl = "*"
@@ -2031,6 +2145,20 @@ files = [
{file = "PyOpenGL-3.1.7.tar.gz", hash = "sha256:eef31a3888e6984fd4d8e6c9961b184c9813ca82604d37fe3da80eb000a76c86"},
]
+[[package]]
+name = "pyparsing"
+version = "3.1.2"
+description = "pyparsing module - Classes and methods to define and execute parsing grammars"
+optional = false
+python-versions = ">=3.6.8"
+files = [
+ {file = "pyparsing-3.1.2-py3-none-any.whl", hash = "sha256:f9db75911801ed778fe61bb643079ff86601aca99fcae6345aa67292038fb742"},
+ {file = "pyparsing-3.1.2.tar.gz", hash = "sha256:a1bac0ce561155ecc3ed78ca94d3c9378656ad4c94c1270de543f621420f94ad"},
+]
+
+[package.extras]
+diagrams = ["jinja2", "railroad-diagrams"]
+
[[package]]
name = "pysocks"
version = "1.7.1"
@@ -3140,4 +3268,4 @@ testing = ["big-O", "jaraco.functools", "jaraco.itertools", "more-itertools", "p
[metadata]
lock-version = "2.0"
python-versions = "^3.10"
-content-hash = "9c3e86956dd11bc8d7823e5e6c5e74a073051b495f71f96179113d99791f7ca0"
+content-hash = "84cda58ab0670dcb1e2429b342f4f1b3c35f261d1201fc17acad5cc1ef2c6aa8"
diff --git a/pyproject.toml b/pyproject.toml
index 64cbb850..4cc99c2b 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -41,7 +41,7 @@ mpmath = "^1.3.0"
torch = "^2.2.1"
tensordict = {git = "https://github.com/pytorch/tensordict"}
torchrl = {git = "https://github.com/pytorch/rl", rev = "13bef426dcfa5887c6e5034a6e9697993fa92c37"}
-mujoco = "^3.1.2"
+mujoco = "2.3.7"
mujoco-py = "^2.1.2.14"
gym = "^0.26.2"
opencv-python = "^4.9.0.80"
@@ -49,6 +49,7 @@ diffusion-policy = {git = "https://github.com/real-stanford/diffusion_policy"}
diffusers = "^0.26.3"
torchvision = "^0.17.1"
h5py = "^3.10.0"
+dm-control = "1.0.14"
[tool.poetry.group.dev.dependencies]
diff --git a/tests/test_envs.py b/tests/test_envs.py
index 3382125a..b8e9abd5 100644
--- a/tests/test_envs.py
+++ b/tests/test_envs.py
@@ -83,6 +83,7 @@ def test_pusht(from_pixels, pixels_only):
[
# "simxarm",
"pusht",
+ "aloha",
],
)
def test_factory(env_name):