Add support for sky

[iche033]

depends on:

• Add ogre2 skybox support  gz-rendering#168
• Add Sky DOM sdformat#397

Users can now enable a sky in the scene through the <sky> SDF element. It's currently only a static skybox background and sky properties like wind speed, humidity, etc are not supported yet. Only works in ogre2 rendering engine.

To test:

ign gazebo -v 4 sky.sdf

Known issue:

Sky is not visible to an RGBD camera yet.

[chapulina]

Looks sunny! 🌞

Is there a plan to support Ogre 1 and the sky properties in the near future?

[iche033]

Is there a plan to support Ogre 1 and the sky properties in the near future?

I think for ogre1, we can just port over the skyx code from gazebo classic. As for supporting other sky properties in ogre2, maybe we can see if it's possible to port the skyx implementation to ogre2.

[iche033]

sdformat 10.1.0 was released with sky DOM so I think we can merge this now.

[bperseghetti]

Is there a plan to support Ogre 1 and the sky properties in the near future?

I think for ogre1, we can just port over the skyx code from gazebo classic. As for supporting other sky properties in ogre2, maybe we can see if it's possible to port the skyx implementation to ogre2.

@chapulina @iche033 Has anyone looked into this more, including possibly adding some skyx features like storms for ogre2? Having moving clouds back again instead of static skybox would be nice.

[chapulina]

Has anyone looked into this more

I believe no one has looked into this yet, or has plans to look into it in the near future