<?xml version="1.0" ?>
<sdf version="1.5">
<world name="default">
<scene>
<ambient>0.2 0.2 0.2 1</ambient>
<background>1 1 1 1</background>
<shadows>false</shadows>
<grid>false</grid>
<origin_visual>false</origin_visual>
</scene>
</world>
</sdf>