KappaPT Preview P6 (Patreon)

Oi folks,

once again there have been some interesting changes:

- added specular highlights (uses RP data)
- improved and customizable auto exposure calculation
- new adaptive accumulation method aimed at blocklight (force-enabled, strength can be controlled in settings)
- added ray traversal distance cap for minor performance improvements

As always this needs the optifine G8 preview versions to run.

Enjoy the update :)