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<!-- Copyright 2021 DeepMind Technologies Limited
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
-->
<mujoco model="Hammock">
<!-- Degree of Freedom: 312
Actuators: 21
Equality constraints: 178
Tendons: 178
Simple humanoid on a hammock, implemented as a 2D grid composite, pinned at the corners.
-->
<option timestep="0.005" solver="CG" iterations="30" tolerance="1e-6"/>
<size njmax="1000" nconmax="100" nstack="1000000"/>
<visual>
<map force="0.1" zfar="30"/>
<rgba haze="0.15 0.25 0.35 1"/>
<quality shadowsize="2048"/>
<global offwidth="800" offheight="800"/>
</visual>
<asset>
<texture type="skybox" builtin="gradient" rgb1="0.3 0.5 0.7" rgb2="0 0 0" width="512" height="512"/>
<texture name="plane" type="2d" builtin="checker" rgb1=".2 .3 .4" rgb2=".1 0.15 0.2"
width="512" height="512" mark="cross" markrgb=".8 .8 .8"/>
<texture name="hammock" type="2d" builtin="checker" rgb1=".1 .5 .1" rgb2=".5 .1 .1"
width="512" height="512" mark="edge" markrgb=".8 .8 .8"/>
<material name="plane" reflectance="0.3" texture="plane" texrepeat="1 1" texuniform="true"/>
<material name="hammock" texture="hammock"/>
</asset>
<include file="humanoid_body.xml"/>
<worldbody>
<geom name="floor" pos="0 0 -1" size="0 0 .25" type="plane" material="plane" condim="3"/>
<light directional="true" diffuse=".2 .2 .2" specular="0 0 0" pos="0 0 5" dir="0 0 -1" castshadow="false"/>
<light directional="false" diffuse=".8 .8 .8" specular="0.3 0.3 0.3" pos="0 0 4" dir="0 0 -1"/>
<composite type="grid" count="11 9 1" spacing="0.2" offset="0. 0. 0">
<skin texcoord="true" material="hammock" inflate="0.01" subgrid="3"/>
<pin coord="0 0"/>
<pin coord="10 0"/>
<pin coord="0 8"/>
<pin coord="10 8"/>
<geom size=".095"/>
<joint kind="main" damping="10"/>
</composite>
</worldbody>
</mujoco>
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