Material Expressions in Unreal Engine 4 671
around material expressions that the exported version cannot handle correctly, for
example World Position.
•
Inputs
Realtime: This input takes in th e value(s) to pass through for normal rendering.
Lightmass: This input takes in the valu e(s) to pass through when exporting th e
material to Lightmass.
NOISE
This expression creates a procedu ral noise field. With the many properties of this
expression you can control how the noise field is generated to suit yo ur application.
•
Properties
Scale: This property controls the overall size of the noise cells. Lower numbers
make the noise larger.
Quality: This property controls the tradeoff between quality and performance. A
value of 0 is fast, but with lower quality.
Function: ...