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Fresnel is DayZ, not Arma. N and K together. The sphere uses the same curve.

Fresnel (DayZ, not Arma)

UI	RVMAT / preview
Preset	material or shader default. Super: `fresnel(0.81,0.29)`
`fresnelGlass()`	IOR 1.7, K = 0
`fresnelGlass(1.7)`	IOR 1.7 explicit
Custom N/K	`fresnel(N,K)` — both values. N = refraction, K = extinction (high = metal, ~0 = cloth)

The sphere uses the same conductor curve. Aluminium fresnel(1.4, 7.6) and cloth fresnel(1.4, 0) look different.

mainLight Off / Sun / Moon — live on the sphere (Sun warm, Moon cool) and in the RVMAT
fogMode — distance fog, live + RVMAT
shadowBias / parallaxScale / sortBias — written only when ≠ 0
Projection layers (super / multiTop …)
surfaceInfo — .bisurf, e.g. armor_11mm_plate