
A
Material E xpressions in Unreal
Engine 4
T
HIS appendix presents a reference to all material expression nodes available in
Unreal Engine 4. The contents o f this chapter are a dopted form UE4 official
online docume ntations [36].
A.1 IN TRODUCTION
Material Expressions are the building blocks of materials in Unreal Eng ine 4. T hey
are the mathematical terms that either provide values or perform cer ta in op erations
needed in the calculation of the light-material interactions.
A.2 ATMOSPHERE EXPRESSIONS
This category includes expressions that interact with the atmospheric effects at post-
process stage o f the pipeline [1].
ATMOSPHERIC FOG COLOR
This Material ...