Equirectangular skybox - polycount save
Today I created the underground city that Sally mentions in her interview. She likens the tube system in London, to a city underground. I wanted to capture the essence of this and to be able to get a sense of it, whilst 'on the tube'. I've created the tube train as a skeletal frame, which enables complete views through the sides, below the floor and through the roof.
I created a very high poly background (approx 250k) using the ribbon and cube brush, to create a myriad of weaving and sweeping tube lines. Abstract in appearance, all of them are hints of blue, fading into the abyss. Highlights of city buildings in electric satsuma orange, with a lighting glow here and there. I tried Goro Fujita's method of creating a background, exporting as a spherical equirectangular image and reimporting as a 360 image.
Huge saving in triangles - and I think the final layer size for the 360 image was around 3k.
Screen shots below of the same scene, but using an equirectangular screen shot of the web of tube lines. This essentially imports as a small spherical image which can be scaled up, to represent what was viewed in VR. The layer size is now 3k, for something that looks the same. There would be no parallax when moving the head mounted display, however, as this is in the distance, it isn't noticeable.
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