Today I designed new blocks for Realaccurate, I used Kappa shader for the screenshots as I tested the blocks using LabPBR 2.1 standard. For those shaders that don’t use LabPBR 1.2 or don’t take material AO into account, I will probably bake the AO in the albedo, much like most RP’s do -vanilla included.
Here’s the result
HardTop Vanillaccurate 