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Rendering issues with powered blocks using optifine shaders (wokrs fine when shaders are turned off).
I started experiencing this when playing ATM6 Sky (1.0.4).
from playing the modpack this seems to be the only mod that has major rendering issues, everything else seems to render just fine.

What you expected to happen:

Powered blocks render correctly

Steps to reproduce:

1. Have refine storage and latest version of optifine
2. Make sure shaders is enabled (internal would work fine)
3. go into a world and place down anything than has an on/off state (or just an on state like a creative controller)

Version (make sure you are on the latest version before reporting):

• Minecraft:1.16.5
• Forge: 36.0.46
• Refined Storage: 1.9.12
• Optifine: OptiFine HD U G8 pre8

sp614x/optifine#5448

Specifically this comes from https://github.com/refinedmods/refinedstorage/blob/mc1.16/src/main/java/com/refinedmods/refinedstorage/render/model/FullbrightBakedModel.java#L71

A sample fix from another mod can be seen here:
MercurialPony/Subterranean-Wilderness@f1281ea?branch=f1281ea3759c2830c2ef851760132f2efd488597&diff=unified