sky_urb01

[claau.sgv]

in the first segment of the demo we can see that the skybox in the gyftvs map is different than city_test well thats because is an edited version of sky_urb01 or a second version wich has not been found

[Витой]

city_test maps used different skyboxes, not sky_urb01. And the map from Siggraph 2000 definitely used sky_urb01 indeed. What makes you think it was some edited version?
It was the default skybox back in 2000-2001 btw.

[claau.sgv]

i guess is the footage that makes the skybox look a little bit green

[d498]

The sky in the free tvs clip looks like sky_c17_01 but yellow and with more contrast, kind of similar to that skybox from the Cremation mod.
Maybe the sky_c17_01 textures we got in the leak are the edited ones and in the video is the original version but as sky_urb01?

[half life 1 einstein]

radiation hazard made a video about this