For another example of lighting, we looked at Elwynn Forest. We had a period in Warcraft’s history where we changed all the lighting equations and as a result, our environment artists had to take a pass over all of the zones to improve the lighting and take advantage of the new equations. To recreate the original experience, we had to rewind those changes. The first thing we did was restore the old lighting data. This brought us much closer to the original lighting—and with a few more changes to the distance formula, fog formulas, and some changes to shadows, we were able to bring things even closer to the original lighting.
The closed beta for Blizzard’s upcoming World of Warcraft vanilla server option launched on May 15th, and Blizzard has now listed some of the apparent issues that the development team is aware of, including class and combat related issues alongside missing textures and more. Blizzard mentions that this list is not a complete depiction of what they’re aware of, but a sampling of issues they believe players may encounter on regular basis.