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Anymal.yaml
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Anymal.yaml
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# used to create the object
name: Anymal
physics_engine: ${..physics_engine}
env:
numEnvs: ${resolve_default:4096,${...num_envs}}
envSpacing: 4. # [m]
clipObservations: 5.0
clipActions: 1.0
plane:
staticFriction: 1.0 # [-]
dynamicFriction: 1.0 # [-]
restitution: 0. # [-]
baseInitState:
pos: [0.0, 0.0, 0.62] # x,y,z [m]
rot: [0.0, 0.0, 0.0, 1.0] # x,y,z,w [quat]
vLinear: [0.0, 0.0, 0.0] # x,y,z [m/s]
vAngular: [0.0, 0.0, 0.0] # x,y,z [rad/s]
randomCommandVelocityRanges:
linear_x: [-2., 2.] # min max [m/s]
linear_y: [-1., 1.] # min max [m/s]
yaw: [-1., 1.] # min max [rad/s]
control:
# PD Drive parameters:
stiffness: 85.0 # [N*m/rad]
damping: 2.0 # [N*m*s/rad]
actionScale: 0.5
controlFrequencyInv: 1 # 60 Hz
defaultJointAngles: # = target angles when action = 0.0
LF_HAA: 0.03 # [rad]
LH_HAA: 0.03 # [rad]
RF_HAA: -0.03 # [rad]
RH_HAA: -0.03 # [rad]
LF_HFE: 0.4 # [rad]
LH_HFE: -0.4 # [rad]
RF_HFE: 0.4 # [rad]
RH_HFE: -0.4 # [rad]
LF_KFE: -0.8 # [rad]
LH_KFE: 0.8 # [rad]
RF_KFE: -0.8 # [rad]
RH_KFE: 0.8 # [rad]
urdfAsset:
collapseFixedJoints: True
fixBaseLink: False
defaultDofDriveMode: 4 # see GymDofDriveModeFlags (0 is none, 1 is pos tgt, 2 is vel tgt, 4 effort)
learn:
# rewards
linearVelocityXYRewardScale: 1.0
angularVelocityZRewardScale: 0.5
torqueRewardScale: -0.000025
# normalization
linearVelocityScale: 2.0
angularVelocityScale: 0.25
dofPositionScale: 1.0
dofVelocityScale: 0.05
# episode length in seconds
episodeLength_s: 50
# viewer cam:
viewer:
refEnv: 0
pos: [0, 0, 4] # [m]
lookat: [1., 1, 3.3] # [m]
# set to True if you use camera sensors in the environment
enableCameraSensors: False
sim:
dt: 0.02
substeps: 2
up_axis: "z"
use_gpu_pipeline: ${eq:${...pipeline},"gpu"}
gravity: [0.0, 0.0, -9.81]
physx:
num_threads: ${....num_threads}
solver_type: ${....solver_type}
use_gpu: ${contains:"cuda",${....sim_device}} # set to False to run on CPU
num_position_iterations: 4
num_velocity_iterations: 1
contact_offset: 0.02
rest_offset: 0.0
bounce_threshold_velocity: 0.2
max_depenetration_velocity: 100.0
default_buffer_size_multiplier: 5.0
max_gpu_contact_pairs: 8388608 # 8*1024*1024
num_subscenes: ${....num_subscenes}
contact_collection: 1 # 0: CC_NEVER (don't collect contact info), 1: CC_LAST_SUBSTEP (collect only contacts on last substep), 2: CC_ALL_SUBSTEPS (broken - do not use!)
task:
randomize: False
randomization_params:
frequency: 600 # Define how many environment steps between generating new randomizations
observations:
range: [0, .002] # range for the white noise
operation: "additive"
distribution: "gaussian"
actions:
range: [0., .02]
operation: "additive"
distribution: "gaussian"
sim_params:
gravity:
range: [0, 0.4]
operation: "additive"
distribution: "gaussian"
schedule: "linear" # "linear" will linearly interpolate between no rand and max rand
schedule_steps: 3000
actor_params:
anymal:
color: True
rigid_body_properties:
mass:
range: [0.5, 1.5]
operation: "scaling"
distribution: "uniform"
setup_only: True # Property will only be randomized once before simulation is started. See Domain Randomization Documentation for more info.
schedule: "linear" # "linear" will linearly interpolate between no rand and max rand
schedule_steps: 3000
rigid_shape_properties:
friction:
num_buckets: 500
range: [0.7, 1.3]
operation: "scaling"
distribution: "uniform"
schedule: "linear" # "linear" will scale the current random sample by `min(current num steps, schedule_steps) / schedule_steps`
schedule_steps: 3000
restitution:
range: [0., 0.7]
operation: "scaling"
distribution: "uniform"
schedule: "linear" # "linear" will scale the current random sample by `min(current num steps, schedule_steps) / schedule_steps`
schedule_steps: 3000
dof_properties:
damping:
range: [0.5, 1.5]
operation: "scaling"
distribution: "uniform"
schedule: "linear" # "linear" will scale the current random sample by `min(current num steps, schedule_steps) / schedule_steps`
schedule_steps: 3000
stiffness:
range: [0.5, 1.5]
operation: "scaling"
distribution: "uniform"
schedule: "linear" # "linear" will scale the current random sample by `min(current num steps, schedule_steps) / schedule_steps`
schedule_steps: 3000
lower:
range: [0, 0.01]
operation: "additive"
distribution: "gaussian"
schedule: "linear" # "linear" will scale the current random sample by `min(current num steps, schedule_steps) / schedule_steps`
schedule_steps: 3000
upper:
range: [0, 0.01]
operation: "additive"
distribution: "gaussian"
schedule: "linear" # "linear" will scale the current random sample by `min(current num steps, schedule_steps) / schedule_steps`
schedule_steps: 3000