All iray render elements have the same interface. The Light Path Expression sets up the lighting conditions to be rendered.
Shown: Light Path Expression for the Light: Area element
- Light Path Expression
- Specifies the light paths to render. You can edit this expression to obtain different results; if you want to enter your own LPE, we recommend you use the Custom LPE element. Tip: You can look at the predefined LPEs to learn how they work, or to use as templates for your own LPEs.