Kappa Shader Preview 2020-01-22 (Patreon)

Since this is a new way of distributing test verisons this one if available for all tiers. The next preview will require the 5$ Tier for access.

Differences compared to the public test version:

- added variable penumbra shadows

- sky reflection occlusion (Kappa Lite)

- fixed fog shadow position when above fog (Kappa Lite)