Classic sky wobbles in some places when moving

[SpiritQuaddicted]

The classic sky wobbles if the player is moving and if there are many brushes forming it, e1m5 at the Q shadow teleporter is a good example.

[neogeographica]

Not sure if I'm looking at the same sort of effect that you are, but I do see wobbly sky when moving and looking up from the "upper deck" in the DM3 megahealth atrium.

Two interesting things:

• If I'm moving around on the ground and looking up at the same sky, I don't see the wobble.
• The original GLQuake behaves this same way. But DarkPlaces and Fitz Mark V do not. So maybe this is an original Quake problem that has been fixed in other Quake engines.

[neogeographica]

The Fitzquake readme mentions "fixed sky animation on brush models", which could be related.

However from this discussion the change in sky behavior might be a more fundamental rewrite than just a bugfix: http://forums.inside3d.com/viewtopic.php?f=3&t=4930&p=45487&hilit=sky#p45487

Maybe related to Sky_DrawSkyLayers and Sky_DrawFace in the Fitz code, but only glanced at that so far.